diff -Naur gdb-7.6.50.20130624-orig/bfd/acinclude.m4 gdb-7.6.50.20130624/bfd/acinclude.m4
--- gdb-7.6.50.20130624-orig/bfd/acinclude.m4	2012-12-17 20:55:37.000000000 +0400
+++ gdb-7.6.50.20130624/bfd/acinclude.m4	2013-07-29 17:16:00.024414100 +0400
@@ -23,7 +23,7 @@
 [AC_REQUIRE([AC_CANONICAL_TARGET])
 case "${host}" in
 changequote(,)dnl
-*-*-msdos* | *-*-go32* | *-*-mingw32* | *-*-cygwin* | *-*-windows*)
+*-*-msdos* | *-*-go32* | *-*-mingw32* | *-*-cygwin* | *-*-msys* | *-*-windows*)
 changequote([,])dnl
   AC_DEFINE(USE_BINARY_FOPEN, 1, [Use b modifier when opening binary files?]) ;;
 esac])dnl
diff -Naur gdb-7.6.50.20130624-orig/bfd/config.bfd gdb-7.6.50.20130624/bfd/config.bfd
--- gdb-7.6.50.20130624-orig/bfd/config.bfd	2013-06-24 00:08:22.000000000 +0400
+++ gdb-7.6.50.20130624/bfd/config.bfd	2013-07-29 17:16:00.055664100 +0400
@@ -673,7 +673,7 @@
     targ_archs="$targ_archs bfd_arm_arch"
     want64=true
     ;;
-  x86_64-*-mingw* | x86_64-*-pe | x86_64-*-pep | x86_64-*-cygwin)
+  x86_64-*-mingw* | x86_64-*-pe | x86_64-*-pep | x86_64-*-cygwin | x86_64-*-msys)
     targ_defvec=x86_64_pe_vec
     targ_selvecs="x86_64_pe_vec x86_64_pei_vec x86_64_pe_be_vec x86_64_elf64_vec l1om_elf64_vec k1om_elf64_vec i386_pe_vec i386_pei_vec i386_elf32_vec"
     want64=true
@@ -725,7 +725,7 @@
     targ_defvec=i386_elf32_vec
     targ_selvecs=i386_coff_vec
     ;;
-  i[3-7]86-*-mingw32* | i[3-7]86-*-cygwin* | i[3-7]86-*-winnt | i[3-7]86-*-pe)
+  i[3-7]86-*-mingw32* | i[3-7]86-*-cygwin* | i[3-7]86-*-msys* | i[3-7]86-*-winnt | i[3-7]86-*-pe)
     targ_defvec=i386_pe_vec
     targ_selvecs="i386_pe_vec i386_pei_vec i386_elf32_vec"
     targ_underscore=yes
diff -Naur gdb-7.6.50.20130624-orig/bfd/configure gdb-7.6.50.20130624/bfd/configure
--- gdb-7.6.50.20130624-orig/bfd/configure	2013-06-19 14:30:56.000000000 +0400
+++ gdb-7.6.50.20130624/bfd/configure	2013-07-29 17:16:00.071289100 +0400
@@ -5990,7 +5990,7 @@
     lt_cv_sys_max_cmd_len=-1;
     ;;
 
-  cygwin* | mingw* | cegcc*)
+  cygwin* | msys* | mingw* | cegcc*)
     # On Win9x/ME, this test blows up -- it succeeds, but takes
     # about 5 minutes as the teststring grows exponentially.
     # Worse, since 9x/ME are not pre-emptively multitasking,
@@ -6332,7 +6332,7 @@
   lt_cv_file_magic_test_file=/shlib/libc.so
   ;;
 
-cygwin*)
+cygwin* | msys*)
   # func_win32_libid is a shell function defined in ltmain.sh
   lt_cv_deplibs_check_method='file_magic ^x86 archive import|^x86 DLL'
   lt_cv_file_magic_cmd='func_win32_libid'
@@ -6912,7 +6912,7 @@
 aix*)
   symcode='[BCDT]'
   ;;
-cygwin* | mingw* | pw32* | cegcc*)
+cygwin* | msys* | mingw* | pw32* | cegcc*)
   symcode='[ABCDGISTW]'
   ;;
 hpux*)
@@ -8490,7 +8490,7 @@
       # PIC is the default for these OSes.
       ;;
 
-    mingw* | cygwin* | pw32* | os2* | cegcc*)
+    mingw* | msys* | cygwin* | pw32* | os2* | cegcc*)
       # This hack is so that the source file can tell whether it is being
       # built for inclusion in a dll (and should export symbols for example).
       # Although the cygwin gcc ignores -fPIC, still need this for old-style
@@ -8572,7 +8572,7 @@
       fi
       ;;
 
-    mingw* | cygwin* | pw32* | os2* | cegcc*)
+    mingw* | msys* | cygwin* | pw32* | os2* | cegcc*)
       # This hack is so that the source file can tell whether it is being
       # built for inclusion in a dll (and should export symbols for example).
       lt_prog_compiler_pic='-DDLL_EXPORT'
@@ -9034,7 +9034,7 @@
   extract_expsyms_cmds=
 
   case $host_os in
-  cygwin* | mingw* | pw32* | cegcc*)
+  cygwin* | msys* | mingw* | pw32* | cegcc*)
     # FIXME: the MSVC++ port hasn't been tested in a loooong time
     # When not using gcc, we currently assume that we are using
     # Microsoft Visual C++.
@@ -9149,7 +9149,7 @@
       fi
       ;;
 
-    cygwin* | mingw* | pw32* | cegcc*)
+    cygwin* | msys* | mingw* | pw32* | cegcc*)
       # _LT_TAGVAR(hardcode_libdir_flag_spec, ) is actually meaningless,
       # as there is no search path for DLLs.
       hardcode_libdir_flag_spec='-L$libdir'
@@ -9580,7 +9580,7 @@
       export_dynamic_flag_spec=-rdynamic
       ;;
 
-    cygwin* | mingw* | pw32* | cegcc*)
+    cygwin* | msys* | mingw* | pw32* | cegcc*)
       # When not using gcc, we currently assume that we are using
       # Microsoft Visual C++.
       # hardcode_libdir_flag_spec is actually meaningless, as there is
@@ -10481,14 +10481,14 @@
   # libtool to hard-code these into programs
   ;;
 
-cygwin* | mingw* | pw32* | cegcc*)
+cygwin* | msys* | mingw* | pw32* | cegcc*)
   version_type=windows
   shrext_cmds=".dll"
   need_version=no
   need_lib_prefix=no
 
   case $GCC,$host_os in
-  yes,cygwin* | yes,mingw* | yes,pw32* | yes,cegcc*)
+  yes,cygwin* | yes,msys* | yes,mingw* | yes,pw32* | yes,cegcc*)
     library_names_spec='$libname.dll.a'
     # DLL is installed to $(libdir)/../bin by postinstall_cmds
     postinstall_cmds='base_file=`basename \${file}`~
@@ -10512,6 +10512,12 @@
 
       sys_lib_search_path_spec="$sys_lib_search_path_spec /usr/lib/w32api"
       ;;
+    msys*)
+      # Msys DLLs use 'msys-' prefix rather than 'lib'
+      soname_spec='`echo ${libname} | sed -e 's/^lib/msys-/'``echo ${release} | $SED -e 's/[.]/-/g'`${versuffix}${shared_ext}'
+
+      sys_lib_search_path_spec="$sys_lib_search_path_spec /usr/lib/w32api"
+      ;;
     mingw* | cegcc*)
       # MinGW DLLs use traditional 'lib' prefix
       soname_spec='${libname}`echo ${release} | $SED -e 's/[.]/-/g'`${versuffix}${shared_ext}'
@@ -11148,7 +11154,7 @@
     lt_cv_dlopen_libs=
     ;;
 
-  cygwin*)
+  cygwin* | msys*)
     lt_cv_dlopen="dlopen"
     lt_cv_dlopen_libs=
     ;;
@@ -13655,7 +13661,7 @@
 
 
 case "${host}" in
-*-*-msdos* | *-*-go32* | *-*-mingw32* | *-*-cygwin* | *-*-windows*)
+*-*-msdos* | *-*-go32* | *-*-mingw32* | *-*-cygwin* | *-*-msys* | *-*-windows*)
 
 $as_echo "#define USE_BINARY_FOPEN 1" >>confdefs.h
  ;;
@@ -14932,7 +14938,7 @@
 
 LIBM=
 case $host in
-*-*-beos* | *-*-cegcc* | *-*-cygwin* | *-*-haiku* | *-*-pw32* | *-*-darwin*)
+*-*-beos* | *-*-cegcc* | *-*-cygwin* | *-*-msys* | *-*-haiku* | *-*-pw32* | *-*-darwin*)
   # These system don't have libm, or don't need it
   ;;
 *-ncr-sysv4.3*)
@@ -15082,6 +15088,10 @@
     SHARED_LDFLAGS="-no-undefined"
     SHARED_LIBADD="-L`pwd`/../libiberty -liberty -L`pwd`/../intl -lintl -lcygwin -lkernel32"
   ;;
+  *-*-msys*)
+    SHARED_LDFLAGS="-no-undefined"
+    SHARED_LIBADD="-L`pwd`/../libiberty -liberty -L`pwd`/../intl -lintl -lmsys-2.0 -lkernel32"
+  ;;
   esac
 
   if test -n "$SHARED_LIBADD"; then
diff -Naur gdb-7.6.50.20130624-orig/bfd/configure.in gdb-7.6.50.20130624/bfd/configure.in
--- gdb-7.6.50.20130624-orig/bfd/configure.in	2013-06-19 14:30:56.000000000 +0400
+++ gdb-7.6.50.20130624/bfd/configure.in	2013-07-29 17:16:00.000000000 +0400
@@ -577,6 +577,10 @@
     SHARED_LDFLAGS="-no-undefined"
     SHARED_LIBADD="-L`pwd`/../libiberty -liberty -L`pwd`/../intl -lintl -lcygwin -lkernel32"
   ;;
+  *-*-msys*)
+    SHARED_LDFLAGS="-no-undefined"
+    SHARED_LIBADD="-L`pwd`/../libiberty -liberty -L`pwd`/../intl -lintl -lmsys-2.0 -lkernel32"
+  ;;
   esac
 
   if test -n "$SHARED_LIBADD"; then
diff -Naur gdb-7.6.50.20130624-orig/config/dfp.m4 gdb-7.6.50.20130624/config/dfp.m4
--- gdb-7.6.50.20130624-orig/config/dfp.m4	2013-04-30 16:40:42.000000000 +0400
+++ gdb-7.6.50.20130624/config/dfp.m4	2013-07-29 17:16:48.387695300 +0400
@@ -23,6 +23,9 @@
     i?86*-*-cygwin* | x86_64*-*-cygwin*)
       enable_decimal_float=yes
       ;;
+    i?86*-*-msys* | x86_64*-*-msys*)
+      enable_decimal_float=yes
+      ;;
     *)
       AC_MSG_WARN([decimal float is not supported for this target, ignored])
       enable_decimal_float=no
diff -Naur gdb-7.6.50.20130624-orig/config/elf.m4 gdb-7.6.50.20130624/config/elf.m4
--- gdb-7.6.50.20130624-orig/config/elf.m4	2011-07-18 14:15:06.000000000 +0400
+++ gdb-7.6.50.20130624/config/elf.m4	2013-07-29 17:16:00.133789100 +0400
@@ -13,7 +13,7 @@
 
 target_elf=no
 case $target in
-  *-darwin* | *-aix* | *-cygwin* | *-mingw* | *-aout* | *-*coff* | \
+  *-darwin* | *-aix* | *-cygwin* |*-msys* |  *-mingw* | *-aout* | *-*coff* | \
   *-msdosdjgpp* | *-vms* | *-wince* | *-*-pe* | \
   alpha*-dec-osf* | *-interix* | hppa[[12]]*-*-hpux*)
     target_elf=no
diff -Naur gdb-7.6.50.20130624-orig/config/lthostflags.m4 gdb-7.6.50.20130624/config/lthostflags.m4
--- gdb-7.6.50.20130624-orig/config/lthostflags.m4	2010-12-06 04:40:20.000000000 +0300
+++ gdb-7.6.50.20130624/config/lthostflags.m4	2013-07-29 17:16:00.133789100 +0400
@@ -13,7 +13,7 @@
 AC_REQUIRE([AC_CANONICAL_SYSTEM])
 
 case $host in
-  *-cygwin* | *-mingw*)
+  *-cygwin* | *-msys* | *-mingw*)
     # 'host' will be top-level target in the case of a target lib,
     # we must compare to with_cross_host to decide if this is a native
     # or cross-compiler and select where to install dlls appropriately.
diff -Naur gdb-7.6.50.20130624-orig/config/mmap.m4 gdb-7.6.50.20130624/config/mmap.m4
--- gdb-7.6.50.20130624-orig/config/mmap.m4	2012-05-29 19:58:15.000000000 +0400
+++ gdb-7.6.50.20130624/config/mmap.m4	2013-07-29 17:16:00.149414100 +0400
@@ -42,7 +42,7 @@
    # Systems known to be in this category are Windows (all variants),
    # VMS, and Darwin.
    case "$host_os" in
-     *vms* | cygwin* | pe | mingw* | darwin* | ultrix* | hpux10* | hpux11.00)
+     *vms* | cygwin* | msys* | pe | mingw* | darwin* | ultrix* | hpux10* | hpux11.00)
         gcc_cv_func_mmap_dev_zero=no ;;
      *)
         gcc_cv_func_mmap_dev_zero=yes;;
@@ -74,7 +74,7 @@
    # above for use of /dev/zero.
    # Systems known to be in this category are Windows, VMS, and SCO Unix.
    case "$host_os" in
-     *vms* | cygwin* | pe | mingw* | sco* | udk* )
+     *vms* | cygwin* | msys* | pe | mingw* | sco* | udk* )
         gcc_cv_func_mmap_anon=no ;;
      *)
         gcc_cv_func_mmap_anon=yes;;
diff -Naur gdb-7.6.50.20130624-orig/config/picflag.m4 gdb-7.6.50.20130624/config/picflag.m4
--- gdb-7.6.50.20130624-orig/config/picflag.m4	2013-04-30 16:40:42.000000000 +0400
+++ gdb-7.6.50.20130624/config/picflag.m4	2013-07-29 17:17:26.590820300 +0400
@@ -19,6 +19,8 @@
 	;;
     i[[34567]]86-*-cygwin* | x86_64-*-cygwin*)
 	;;
+    i[[34567]]86-*-msys* | x86_64-*-msys*)
+	;;
     i[[34567]]86-*-mingw* | x86_64-*-mingw*)
 	;;
     i[[34567]]86-*-interix[[3-9]]*)
diff -Naur gdb-7.6.50.20130624-orig/config/tcl.m4 gdb-7.6.50.20130624/config/tcl.m4
--- gdb-7.6.50.20130624-orig/config/tcl.m4	2012-05-29 19:58:15.000000000 +0400
+++ gdb-7.6.50.20130624/config/tcl.m4	2013-07-29 17:16:00.165039100 +0400
@@ -33,7 +33,7 @@
 
 	    # First check to see if --with-tcl was specified.
 	    case "${host}" in
-		*-*-cygwin*) platDir="win" ;;
+		*-*-cygwin* | *-*-msys*) platDir="win" ;;
 		*) platDir="unix" ;;
 	    esac
 	    if test x"${with_tclconfig}" != x ; then
@@ -165,7 +165,7 @@
 
 	    # then check for a private Tk library
 	    case "${host}" in
-		*-*-cygwin*) platDir="win" ;;
+		*-*-cygwin* | *-*-msys*) platDir="win" ;;
 		*) platDir="unix" ;;
 	    esac
 	    if test x"${ac_cv_c_tkconfig}" = x ; then
diff -Naur gdb-7.6.50.20130624-orig/config.guess gdb-7.6.50.20130624/config.guess
--- gdb-7.6.50.20130624-orig/config.guess	2013-04-29 19:13:53.000000000 +0400
+++ gdb-7.6.50.20130624/config.guess	2013-07-29 21:12:28.546875000 +0400
@@ -845,6 +845,9 @@
     amd64:CYGWIN*:*:* | x86_64:CYGWIN*:*:*)
 	echo x86_64-unknown-cygwin
 	exit ;;
+    amd64:MSYS*:*:* | x86_64:MSYS*:*:*)
+	echo x86_64-unknown-msys
+	exit ;;
     p*:CYGWIN*:*)
 	echo powerpcle-unknown-cygwin
 	exit ;;
diff -Naur gdb-7.6.50.20130624-orig/config.rpath gdb-7.6.50.20130624/config.rpath
--- gdb-7.6.50.20130624-orig/config.rpath	2011-02-14 00:00:08.000000000 +0300
+++ gdb-7.6.50.20130624/config.rpath	2013-07-29 17:16:00.211914100 +0400
@@ -109,7 +109,7 @@
 hardcode_minus_L=no
 
 case "$host_os" in
-  cygwin* | mingw* | pw32*)
+  cygwin* | msys* | mingw* | pw32*)
     # FIXME: the MSVC++ port hasn't been tested in a loooong time
     # When not using gcc, we currently assume that we are using
     # Microsoft Visual C++.
@@ -149,7 +149,7 @@
         ld_shlibs=no
       fi
       ;;
-    cygwin* | mingw* | pw32*)
+    cygwin* | msys* | mingw* | pw32*)
       # hardcode_libdir_flag_spec is actually meaningless, as there is
       # no search path for DLLs.
       hardcode_libdir_flag_spec='-L$libdir'
@@ -268,7 +268,7 @@
       ;;
     bsdi4*)
       ;;
-    cygwin* | mingw* | pw32*)
+    cygwin* | msys* | mingw* | pw32*)
       # When not using gcc, we currently assume that we are using
       # Microsoft Visual C++.
       # hardcode_libdir_flag_spec is actually meaningless, as there is
@@ -437,7 +437,7 @@
     ;;
   bsdi4*)
     ;;
-  cygwin* | mingw* | pw32*)
+  cygwin* | msys* | mingw* | pw32*)
     shrext=.dll
     ;;
   darwin* | rhapsody*)
diff -Naur gdb-7.6.50.20130624-orig/configure gdb-7.6.50.20130624/configure
--- gdb-7.6.50.20130624-orig/configure	2013-06-22 20:44:13.000000000 +0400
+++ gdb-7.6.50.20130624/configure	2013-07-29 17:16:00.227539100 +0400
@@ -3013,7 +3013,7 @@
 # Configure extra directories which are host specific
 
 case "${host}" in
-  *-cygwin*)
+  *-cygwin* | *-msys*)
     configdirs="$configdirs libtermcap" ;;
 esac
 
@@ -3423,7 +3423,7 @@
 	# PR 46986
 	noconfigdirs="$noconfigdirs target-libgo"
 	;;
-    *-*-cygwin* | *-*-mingw*)
+    *-*-cygwin* | *-*-mingw* | *-*-msys*)
 	noconfigdirs="$noconfigdirs target-libgo"
 	;;
     *-*-aix*)
@@ -3679,7 +3679,7 @@
   i[3456789]86-*-mingw*)
     target_configdirs="$target_configdirs target-winsup"
     ;;
-  *-*-cygwin*)
+  *-*-cygwin* | *-*-msys*)
     target_configdirs="$target_configdirs target-libtermcap target-winsup"
     noconfigdirs="$noconfigdirs target-libgloss"
     # always build newlib if winsup directory is present.
@@ -3814,7 +3814,7 @@
   i[3456789]86-*-msdosdjgpp*)
     host_makefile_frag="config/mh-djgpp"
     ;;
-  *-cygwin*)
+  *-cygwin* | *-msys*)
 
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking to see if cat works as expected" >&5
 $as_echo_n "checking to see if cat works as expected... " >&6; }
@@ -6180,7 +6180,7 @@
 
 target_elf=no
 case $target in
-  *-darwin* | *-aix* | *-cygwin* | *-mingw* | *-aout* | *-*coff* | \
+  *-darwin* | *-aix* | *-cygwin* | *-msys* | *-mingw* | *-aout* | *-*coff* | \
   *-msdosdjgpp* | *-vms* | *-wince* | *-*-pe* | \
   alpha*-dec-osf* | *-interix* | hppa[12]*-*-hpux*)
     target_elf=no
@@ -6197,7 +6197,7 @@
 else
   if test x"$default_enable_lto" = x"yes" ; then
     case $target in
-      *-apple-darwin9* | *-cygwin* | *-mingw*) ;;
+      *-apple-darwin9* | *-cygwin* | *-msys* | *-mingw*) ;;
       # On other non-ELF platforms, LTO has yet to be validated.
       *) enable_lto=no ;;
     esac
@@ -6208,7 +6208,7 @@
   # warn during gcc/ subconfigure; unless you're bootstrapping with
   # -flto it won't be needed until after installation anyway.
     case $target in
-      *-cygwin* | *-mingw* | *-apple-darwin*) ;;
+      *-cygwin* | *-msys* | *-mingw* | *-apple-darwin*) ;;
       *) if test x"$enable_lto" = x"yes"; then
 	as_fn_error "LTO support is not enabled for this target." "$LINENO" 5
         fi
@@ -6218,7 +6218,7 @@
   # Among non-ELF, only Windows platforms support the lto-plugin so far.
   # Build it unless LTO was explicitly disabled.
   case $target in
-    *-cygwin* | *-mingw*) build_lto_plugin=$enable_lto ;;
+    *-cygwin* | *-msys* | *-mingw*) build_lto_plugin=$enable_lto ;;
     *) ;;
   esac
 
@@ -7004,7 +7004,7 @@
 case "${host}" in
   *-*-hpux*) RPATH_ENVVAR=SHLIB_PATH ;;
   *-*-darwin*) RPATH_ENVVAR=DYLD_LIBRARY_PATH ;;
-  *-*-mingw* | *-*-cygwin ) RPATH_ENVVAR=PATH ;;
+  *-*-mingw* | *-*-cygwin | *-*-msys ) RPATH_ENVVAR=PATH ;;
   *) RPATH_ENVVAR=LD_LIBRARY_PATH ;;
 esac
 
@@ -7451,7 +7451,7 @@
   case " $target_configargs " in
   *" --with-newlib "*)
    case "$target" in
-    *-cygwin*)
+    *-cygwin* | *-msys*)
       FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(TARGET_SUBDIR)/winsup/cygwin -isystem $$s/winsup/cygwin/include'
       ;;
    esac
diff -Naur gdb-7.6.50.20130624-orig/configure.ac gdb-7.6.50.20130624/configure.ac
--- gdb-7.6.50.20130624-orig/configure.ac	2013-06-24 05:49:55.000000000 +0400
+++ gdb-7.6.50.20130624/configure.ac	2013-07-29 17:16:00.258789100 +0400
@@ -375,7 +375,7 @@
 # Configure extra directories which are host specific
 
 case "${host}" in
-  *-cygwin*)
+  *-cygwin* | *-msys*)
     configdirs="$configdirs libtermcap" ;;
 esac
 
@@ -762,7 +762,7 @@
 	# PR 46986
 	noconfigdirs="$noconfigdirs target-libgo"
 	;;
-    *-*-cygwin* | *-*-mingw*)
+    *-*-cygwin* | *-*-msys* | *-*-mingw*)
 	noconfigdirs="$noconfigdirs target-libgo"
 	;;
     *-*-aix*)
@@ -1018,7 +1018,7 @@
   i[[3456789]]86-*-mingw*)
     target_configdirs="$target_configdirs target-winsup"
     ;;
-  *-*-cygwin*)
+  *-*-cygwin* | *-*-msys*)
     target_configdirs="$target_configdirs target-libtermcap target-winsup"
     noconfigdirs="$noconfigdirs target-libgloss"
     # always build newlib if winsup directory is present.
@@ -1153,7 +1153,7 @@
   i[[3456789]]86-*-msdosdjgpp*)
     host_makefile_frag="config/mh-djgpp"
     ;;
-  *-cygwin*)
+  *-cygwin* | *-msys*)
     ACX_CHECK_CYGWIN_CAT_WORKS
     host_makefile_frag="config/mh-cygwin"
     ;;
@@ -1685,7 +1685,7 @@
   build_lto_plugin=yes
 ],[if test x"$default_enable_lto" = x"yes" ; then
     case $target in
-      *-apple-darwin9* | *-cygwin* | *-mingw*) ;;
+      *-apple-darwin9* | *-cygwin* | *-msys* | *-mingw*) ;;
       # On other non-ELF platforms, LTO has yet to be validated.
       *) enable_lto=no ;;
     esac
@@ -1696,7 +1696,7 @@
   # warn during gcc/ subconfigure; unless you're bootstrapping with
   # -flto it won't be needed until after installation anyway.
     case $target in
-      *-cygwin* | *-mingw* | *-apple-darwin*) ;;
+      *-cygwin* | *-msys* | *-mingw* | *-apple-darwin*) ;;
       *) if test x"$enable_lto" = x"yes"; then
 	AC_MSG_ERROR([LTO support is not enabled for this target.])
         fi
@@ -1706,7 +1706,7 @@
   # Among non-ELF, only Windows platforms support the lto-plugin so far.
   # Build it unless LTO was explicitly disabled.
   case $target in
-    *-cygwin* | *-mingw*) build_lto_plugin=$enable_lto ;;
+    *-cygwin* | *-msys* | *-mingw*) build_lto_plugin=$enable_lto ;;
     *) ;;
   esac
 ])
@@ -2439,7 +2439,7 @@
 case "${host}" in
   *-*-hpux*) RPATH_ENVVAR=SHLIB_PATH ;;
   *-*-darwin*) RPATH_ENVVAR=DYLD_LIBRARY_PATH ;;
-  *-*-mingw* | *-*-cygwin ) RPATH_ENVVAR=PATH ;;
+  *-*-mingw* | *-*-cygwin | *-*-msys ) RPATH_ENVVAR=PATH ;;
   *) RPATH_ENVVAR=LD_LIBRARY_PATH ;;
 esac
 
@@ -2885,7 +2885,7 @@
   case " $target_configargs " in
   *" --with-newlib "*)
    case "$target" in
-    *-cygwin*)
+    *-cygwin* | *-msys*)
       FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(TARGET_SUBDIR)/winsup/cygwin -isystem $$s/winsup/cygwin/include'
       ;;
    esac
diff -Naur gdb-7.6.50.20130624-orig/gdb/config/i386/msys.mh gdb-7.6.50.20130624/gdb/config/i386/msys.mh
--- gdb-7.6.50.20130624-orig/gdb/config/i386/msys.mh	1970-01-01 03:00:00.000000000 +0300
+++ gdb-7.6.50.20130624/gdb/config/i386/msys.mh	2013-07-29 17:16:00.290039100 +0400
@@ -0,0 +1,3 @@
+MH_CFLAGS=
+NATDEPFILES= i386-nat.o windows-nat.o i386-windows-nat.o
+XM_CLIBS=
diff -Naur gdb-7.6.50.20130624-orig/gdb/config/i386/msys64.mh gdb-7.6.50.20130624/gdb/config/i386/msys64.mh
--- gdb-7.6.50.20130624-orig/gdb/config/i386/msys64.mh	1970-01-01 03:00:00.000000000 +0300
+++ gdb-7.6.50.20130624/gdb/config/i386/msys64.mh	2013-07-29 17:16:00.290039100 +0400
@@ -0,0 +1,20 @@
+#  Native config information for GDB on PowerPC systems running FreeBSD.
+#
+#  Copyright (C) 2013 Free Software Foundation, Inc.
+#
+#  This file is part of GDB.
+#
+#  This program is free software; you can redistribute it and/or modify
+#  it under the terms of the GNU General Public License as published by
+#  the Free Software Foundation; either version 3 of the License, or
+#  (at your option) any later version.
+#
+#  This program is distributed in the hope that it will be useful,
+#  but WITHOUT ANY WARRANTY; without even the implied warranty of
+#  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+#  GNU General Public License for more details.
+#
+#  You should have received a copy of the GNU General Public License
+#  along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+
+NATDEPFILES= i386-nat.o windows-nat.o amd64-windows-nat.o
diff -Naur gdb-7.6.50.20130624-orig/gdb/configure gdb-7.6.50.20130624/gdb/configure
--- gdb-7.6.50.20130624-orig/gdb/configure	2013-05-23 22:36:59.000000000 +0400
+++ gdb-7.6.50.20130624/gdb/configure	2013-07-29 17:16:00.321289100 +0400
@@ -6976,7 +6976,7 @@
 # have a seperate termcap library, or no curses library at all.
 
 case $host_os in
-  cygwin*)
+  cygwin* | msys*)
     if test -d $srcdir/libtermcap; then
       LIBS="../libtermcap/libtermcap.a $LIBS"
       ac_cv_search_tgetent="../libtermcap/libtermcap.a"
@@ -12571,7 +12571,7 @@
 if test x$gdb_cv_os_cygwin = xyes; then
     WIN32LIBS="-luser32"
     case "${target}" in
-	*cygwin*) WIN32LIBS="$WIN32LIBS -limagehlp"
+	*cygwin* | *msys*) WIN32LIBS="$WIN32LIBS -limagehlp"
 	;;
     esac
 fi
@@ -13471,7 +13471,7 @@
 
 
 case "${host}" in
-*-*-cygwin* | *-*-mingw* )
+*-*-cygwin* | *-*-msys* | *-*-mingw* )
     configdir="win"
     ;;
 *)
@@ -13514,7 +13514,7 @@
 
 	    # First check to see if --with-tcl was specified.
 	    case "${host}" in
-		*-*-cygwin*) platDir="win" ;;
+		*-*-cygwin* | *-*-msys*) platDir="win" ;;
 		*) platDir="unix" ;;
 	    esac
 	    if test x"${with_tclconfig}" != x ; then
@@ -13643,7 +13643,7 @@
 
 	    # then check for a private Tk library
 	    case "${host}" in
-		*-*-cygwin*) platDir="win" ;;
+		*-*-cygwin* | *-*-msys*) platDir="win" ;;
 		*) platDir="unix" ;;
 	    esac
 	    if test x"${ac_cv_c_tkconfig}" = x ; then
diff -Naur gdb-7.6.50.20130624-orig/gdb/configure.ac gdb-7.6.50.20130624/gdb/configure.ac
--- gdb-7.6.50.20130624-orig/gdb/configure.ac	2013-05-23 22:37:00.000000000 +0400
+++ gdb-7.6.50.20130624/gdb/configure.ac	2013-07-29 17:16:00.352539100 +0400
@@ -619,7 +619,7 @@
 # have a seperate termcap library, or no curses library at all.
 
 case $host_os in
-  cygwin*)
+  cygwin* | msys*)
     if test -d $srcdir/libtermcap; then
       LIBS="../libtermcap/libtermcap.a $LIBS"
       ac_cv_search_tgetent="../libtermcap/libtermcap.a"
@@ -2009,7 +2009,7 @@
 if test x$gdb_cv_os_cygwin = xyes; then
     WIN32LIBS="-luser32"
     case "${target}" in
-	*cygwin*) WIN32LIBS="$WIN32LIBS -limagehlp"
+	*cygwin* | *msys*) WIN32LIBS="$WIN32LIBS -limagehlp"
 	;;
     esac
 fi
@@ -2088,7 +2088,7 @@
 AC_SUBST(WIN32LDAPP)
 
 case "${host}" in
-*-*-cygwin* | *-*-mingw* )
+*-*-cygwin* | *-*-msys* | *-*-mingw* )
     configdir="win"
     ;;
 *)
diff -Naur gdb-7.6.50.20130624-orig/gdb/configure.host gdb-7.6.50.20130624/gdb/configure.host
--- gdb-7.6.50.20130624-orig/gdb/configure.host	2013-03-05 17:37:10.000000000 +0400
+++ gdb-7.6.50.20130624/gdb/configure.host	2013-07-29 17:16:00.383789100 +0400
@@ -107,6 +107,7 @@
 			gdb_host=sol2-64 ;;
 i[34567]86-*-solaris*)	gdb_host=i386sol2 ;;
 i[34567]86-*-cygwin*)	gdb_host=cygwin ;;
+i[34567]86-*-msys*)	gdb_host=msys ;;
 
 ia64-*-hpux*)		gdb_host=hpux ;;
 ia64-*-linux*)		gdb_host=linux ;;
@@ -183,6 +184,7 @@
 			gdb_host_obs=mingw-hdep.o
 			;;
 x86_64-*-cygwin*)	gdb_host=cygwin64 ;;
+x86_64-*-msys*)	gdb_host=msys64 ;;
 m32r*-*-linux*)          gdb_host=linux ;;
 
 xtensa*-*-linux*)	gdb_host=linux ;;
diff -Naur gdb-7.6.50.20130624-orig/gdb/configure.tgt gdb-7.6.50.20130624/gdb/configure.tgt
--- gdb-7.6.50.20130624-orig/gdb/configure.tgt	2013-05-07 05:09:28.000000000 +0400
+++ gdb-7.6.50.20130624/gdb/configure.tgt	2013-07-29 17:16:00.399414100 +0400
@@ -238,6 +238,12 @@
 			windows-tdep.o"
 	build_gdbserver=yes
 	;;
+i[34567]86-*-msys*)
+	# Target: Intel 386 running win32
+	gdb_target_obs="i386-tdep.o i386-cygwin-tdep.o i387-tdep.o \
+			windows-tdep.o"
+	build_gdbserver=yes
+	;;
 i[34567]86-*-mingw32*)
 	# Target: Intel 386 running win32
 	gdb_target_obs="i386-tdep.o i386-cygwin-tdep.o i387-tdep.o \
@@ -664,7 +670,7 @@
 			i387-tdep.o i386bsd-tdep.o i386fbsd-tdep.o \
 			bsd-uthread.o solib-svr4.o"
 	;;
-x86_64-*-mingw* | x86_64-*-cygwin*)
+x86_64-*-mingw* | x86_64-*-cygwin* | x86_64-*-msys*)
         # Target: MingW/amd64
 	gdb_target_obs="amd64-tdep.o amd64-windows-tdep.o \
                         i386-tdep.o i386-cygwin-tdep.o i387-tdep.o \
@@ -709,7 +715,7 @@
 *-*-*-gnu*)	;; # prevent non-GNU kernels to match the Hurd rule below
 *-*-gnu*)	gdb_osabi=GDB_OSABI_HURD ;;
 *-*-mingw32ce*)	gdb_osabi=GDB_OSABI_WINCE ;;
-*-*-mingw* | *-*-cygwin*)
+*-*-mingw* | *-*-cygwin* | *-*-msys*)
 		gdb_osabi=GDB_OSABI_CYGWIN ;;
 *-*-dicos*)	gdb_osabi=GDB_OSABI_DICOS ;;
 *-*-symbianelf*)
diff -Naur gdb-7.6.50.20130624-orig/gdb/gdbserver/configure.srv gdb-7.6.50.20130624/gdb/gdbserver/configure.srv
--- gdb-7.6.50.20130624-orig/gdb/gdbserver/configure.srv	2013-05-28 14:41:17.000000000 +0400
+++ gdb-7.6.50.20130624/gdb/gdbserver/configure.srv	2013-07-29 17:16:00.399414100 +0400
@@ -100,7 +100,7 @@
 			srv_linux_usrregs=yes
 			srv_linux_thread_db=yes
 			;;
-  i[34567]86-*-cygwin*)	srv_regobj="$srv_i386_regobj"
+  i[34567]86-*-cygwin* | i[34567]86-*-msys*)	srv_regobj="$srv_i386_regobj"
 			srv_tgtobj="i386-low.o win32-low.o win32-i386-low.o"
 			srv_xmlfiles="$srv_i386_xmlfiles"
 			;;
@@ -340,7 +340,10 @@
 			srv_tgtobj="i386-low.o i387-fp.o win32-low.o win32-i386-low.o"
 			srv_xmlfiles="$srv_i386_xmlfiles"
 			;;
-
+  x86_64-*-msys*)	srv_regobj="$srv_amd64_regobj"
+			srv_tgtobj="i386-low.o i387-fp.o win32-low.o win32-i386-low.o"
+			srv_xmlfiles="$srv_i386_xmlfiles"
+			;;
   xtensa*-*-linux*)	srv_regobj=reg-xtensa.o
 			srv_tgtobj="linux-low.o linux-osdata.o linux-xtensa-low.o linux-procfs.o"
 			srv_tgtobj="${srv_tgtobj} linux-ptrace.o"
diff -Naur gdb-7.6.50.20130624-orig/gdb/gnulib/import/Makefile.am gdb-7.6.50.20130624/gdb/gnulib/import/Makefile.am
--- gdb-7.6.50.20130624-orig/gdb/gnulib/import/Makefile.am	2013-06-21 20:17:01.000000000 +0400
+++ gdb-7.6.50.20130624/gdb/gnulib/import/Makefile.am	2013-07-29 17:16:00.430664100 +0400
@@ -292,7 +292,7 @@
 	  case '$(host_os)' in \
 	    darwin[56]*) \
 	      need_charset_alias=true ;; \
-	    darwin* | cygwin* | mingw* | pw32* | cegcc*) \
+	    darwin* | cygwin* | msys* | mingw* | pw32* | cegcc*) \
 	      need_charset_alias=false ;; \
 	    *) \
 	      need_charset_alias=true ;; \
diff -Naur gdb-7.6.50.20130624-orig/gdb/gnulib/import/Makefile.in gdb-7.6.50.20130624/gdb/gnulib/import/Makefile.in
--- gdb-7.6.50.20130624-orig/gdb/gnulib/import/Makefile.in	2013-06-21 20:17:01.000000000 +0400
+++ gdb-7.6.50.20130624/gdb/gnulib/import/Makefile.in	2013-07-29 17:16:00.446289100 +0400
@@ -1396,7 +1396,7 @@
 	  case '$(host_os)' in \
 	    darwin[56]*) \
 	      need_charset_alias=true ;; \
-	    darwin* | cygwin* | mingw* | pw32* | cegcc*) \
+	    darwin* | cygwin* | msys* | mingw* | pw32* | cegcc*) \
 	      need_charset_alias=false ;; \
 	    *) \
 	      need_charset_alias=true ;; \
diff -Naur gdb-7.6.50.20130624-orig/gdb/testsuite/gdb.base/bigcore.exp gdb-7.6.50.20130624/gdb/testsuite/gdb.base/bigcore.exp
--- gdb-7.6.50.20130624-orig/gdb/testsuite/gdb.base/bigcore.exp	2013-06-07 21:31:07.000000000 +0400
+++ gdb-7.6.50.20130624/gdb/testsuite/gdb.base/bigcore.exp	2013-07-29 17:16:00.493164100 +0400
@@ -34,7 +34,8 @@
      || [istarget "*-*-hpux*"]
      || [istarget "*-*-solaris*"] 
      || [istarget "*-*-darwin*"] 
-     || [istarget "*-*-cygwin*"] } {
+     || [istarget "*-*-cygwin*"] 
+	 || [istarget "*-*-msys*"] } {
     untested "Kernel lacks sparse corefile support (PR gdb/1551)"
     return
 }
diff -Naur gdb-7.6.50.20130624-orig/gdb/testsuite/gdb.base/fileio.exp gdb-7.6.50.20130624/gdb/testsuite/gdb.base/fileio.exp
--- gdb-7.6.50.20130624-orig/gdb/testsuite/gdb.base/fileio.exp	2013-03-14 17:34:02.000000000 +0400
+++ gdb-7.6.50.20130624/gdb/testsuite/gdb.base/fileio.exp	2013-07-29 17:16:00.508789100 +0400
@@ -222,7 +222,7 @@
 
 # This test fails on Cygwin because unlink() succeeds on Win32 systems
 # in that situation.
-if [ishost *cygwin*] {
+if { ([ishost *cygwin*] || [ishost *msys*]) } {
     setup_xfail "*-*-*"
 }
 gdb_test continue \
diff -Naur gdb-7.6.50.20130624-orig/gdb/testsuite/gdb.base/maint.exp gdb-7.6.50.20130624/gdb/testsuite/gdb.base/maint.exp
--- gdb-7.6.50.20130624-orig/gdb/testsuite/gdb.base/maint.exp	2013-06-19 17:07:00.000000000 +0400
+++ gdb-7.6.50.20130624/gdb/testsuite/gdb.base/maint.exp	2013-07-29 17:16:00.508789100 +0400
@@ -161,7 +161,7 @@
 # The timeout value is raised, because printing all the symbols and
 # statistical information about Cygwin and Windows libraries takes a lot
 # of time.
-if [istarget "*-*-cygwin*"] {
+if { ([istarget "*-*-cygwin*"] || [istarget "*-*-msys*"]) } {
 	set oldtimeout $timeout
 	set timeout [expr $timeout + 500]
 }
@@ -447,6 +447,7 @@
 # The "maint info sections DATA" test is marked for XFAIL on Windows,
 # because Windows has text sections marked DATA.
 setup_xfail "*-*-*cygwin*"
+setup_xfail "*-*-*msys*"
 setup_xfail "*-*-*mingw*"
 
 gdb_test_multiple "maint info sections DATA" "maint info sections DATA" {
diff -Naur gdb-7.6.50.20130624-orig/gdb/testsuite/gdb.base/shreloc.exp gdb-7.6.50.20130624/gdb/testsuite/gdb.base/shreloc.exp
--- gdb-7.6.50.20130624-orig/gdb/testsuite/gdb.base/shreloc.exp	2013-01-01 10:33:26.000000000 +0400
+++ gdb-7.6.50.20130624/gdb/testsuite/gdb.base/shreloc.exp	2013-07-29 17:16:00.508789100 +0400
@@ -46,7 +46,7 @@
 set lib_opts "debug"
 set exec_opts [list debug shlib=$lib1_sl shlib=$lib2_sl]
 
-if {([istarget "*pc-cygwin"] || [istarget "*pc-mingw32"]) } {
+if {([istarget "*pc-cygwin"] || [istarget "*pc-mingw32"] || [istarget "*pc-msys"]) } {
     lappend lib_opts "ldflags=-Wl,--image-base,0x04000000"
 }
 
@@ -248,7 +248,7 @@
     }
 }
 
-if {([istarget "*pc-cygwin"] || [istarget "*pc-mingw32"]) } {
+if {([istarget "*pc-cygwin"] || [istarget "*pc-mingw32"] || [istarget "*pc-msys"]) } {
     #
     # We know the names of some absolute symbols included in the
     # portable-executable (DLL) format. Check that they didn't get
diff -Naur gdb-7.6.50.20130624-orig/gdb/testsuite/gdb.base/solib-weak.exp gdb-7.6.50.20130624/gdb/testsuite/gdb.base/solib-weak.exp
--- gdb-7.6.50.20130624-orig/gdb/testsuite/gdb.base/solib-weak.exp	2013-01-01 10:33:26.000000000 +0400
+++ gdb-7.6.50.20130624/gdb/testsuite/gdb.base/solib-weak.exp	2013-07-29 17:16:00.571289100 +0400
@@ -25,7 +25,8 @@
 if {([istarget arm*-*-symbianelf*]
      || [istarget *-*-mingw*]
      || [istarget *-*-cygwin*]
-     || [istarget *-*-pe*])} {
+     || [istarget *-*-pe*]
+     || [istarget *-*-msys*]) } {
     return 0
 }
 
diff -Naur gdb-7.6.50.20130624-orig/gdb/testsuite/gdb.dwarf2/dw2-dos-drive.exp gdb-7.6.50.20130624/gdb/testsuite/gdb.dwarf2/dw2-dos-drive.exp
--- gdb-7.6.50.20130624-orig/gdb/testsuite/gdb.dwarf2/dw2-dos-drive.exp	2013-01-18 00:40:44.000000000 +0400
+++ gdb-7.6.50.20130624/gdb/testsuite/gdb.dwarf2/dw2-dos-drive.exp	2013-07-29 17:16:00.571289100 +0400
@@ -32,7 +32,8 @@
 gdb_test "break 'z:file.c':func" {Breakpoint [0-9]+ at .*}
 
 set dos [expr [istarget "*-*-cygwin*"] || [istarget "i?86-*-mingw*"] \
-	      || [istarget "*-*-msdosdjgpp*"] || [istarget "*-*-go32*"] ]
+	      || [istarget "*-*-msdosdjgpp*"] || [istarget "*-*-go32*"] \
+	      || [istarget "*-*-msys*"] ]
 
 if { $dos } {
     gdb_test "break file.c:func" {Breakpoint [0-9]+ at .*}
diff -Naur gdb-7.6.50.20130624-orig/gdb/testsuite/lib/gdb.exp gdb-7.6.50.20130624/gdb/testsuite/lib/gdb.exp
--- gdb-7.6.50.20130624-orig/gdb/testsuite/lib/gdb.exp	2013-06-07 21:31:09.000000000 +0400
+++ gdb-7.6.50.20130624/gdb/testsuite/lib/gdb.exp	2013-07-29 17:16:00.602539100 +0400
@@ -1600,7 +1600,8 @@
 	 || [istarget arm*-*-symbianelf*]
 	 || [istarget *-*-mingw*]
 	 || [istarget *-*-cygwin*]
-	 || [istarget *-*-pe*])} {
+	 || [istarget *-*-pe*]
+	 || [istarget *-*-msys*])} {
 	return 0
     }
 
@@ -2554,7 +2555,8 @@
 		lappend source "-Wl,$shlib_name"
 	    } elseif { ([istarget "*-*-mingw*"]
 			|| [istarget *-*-cygwin*]
-			|| [istarget *-*-pe*])} {
+			|| [istarget *-*-pe*]
+			|| [istarget *-*-msys*])} {
 		lappend source "${shlib_name}.a"
             } else {
                lappend source $shlib_name
@@ -2562,7 +2564,8 @@
             if { $shlib_found == 0 } {
                 set shlib_found 1
 		if { ([istarget "*-*-mingw*"]
-		      || [istarget *-*-cygwin*]) } {
+		      || [istarget *-*-cygwin*]
+			  || [istarget *-*-msys*]) } {
 		    lappend new_options "additional_flags=-Wl,--enable-auto-import"
 		}
             }
@@ -2581,6 +2584,7 @@
     if { $shlib_load || ($shlib_found && [is_remote target]) } {
 	if { ([istarget "*-*-mingw*"]
 	      || [istarget *-*-cygwin*]
+		  || [istarget *-*-msys*]
 	      || [istarget *-*-pe*]
 	      || [istarget hppa*-*-hpux*])} {
 	    # Do not need anything.
@@ -2633,7 +2637,8 @@
     if { $type == "executable" } {
 	if { ([istarget "*-*-mingw*"]
 	      || [istarget "*-*-*djgpp"]
-	      || [istarget "*-*-cygwin*"])} {
+	      || [istarget "*-*-cygwin*"]
+             || [istarget "*-*-msys*"])} {
 	    # Force output to unbuffered mode, by linking in an object file
 	    # with a global contructor that calls setvbuf.
 	    #
@@ -2743,6 +2748,7 @@
             if { !([istarget "powerpc*-*-aix*"]
                    || [istarget "rs6000*-*-aix*"]
                    || [istarget "*-*-cygwin*"]
+                   || [istarget "*-*-msys*"]
                    || [istarget "*-*-mingw*"]
                    || [istarget "*-*-pe*"]) } {
                 lappend obj_options "additional_flags=-fpic"
@@ -2785,6 +2791,7 @@
 
 	   if { ([istarget "*-*-mingw*"]
 		 || [istarget *-*-cygwin*]
+		 || [istarget *-*-msys*]
 		 || [istarget *-*-pe*]) } {
 	       if { [is_remote host] } {
 		   set name [file tail ${dest}]
@@ -4361,7 +4368,7 @@
 # TODO: find out automatically if the target needs this.
 
 proc gdb_target_symbol_prefix_flags {} {
-    if { [istarget "*-*-cygwin*"] || [istarget "i?86-*-mingw*"]
+    if { [istarget "*-*-cygwin*"] || [istarget "i?86-*-mingw*"] || [istarget "*-*-msys*"]
 	 || [istarget "*-*-msdosdjgpp*"] || [istarget "*-*-go32*"] } {
 	return "additional_flags=-DSYMBOL_PREFIX=\"_\""
     } else {
diff -Naur gdb-7.6.50.20130624-orig/gdb/windows-nat.c gdb-7.6.50.20130624/gdb/windows-nat.c
--- gdb-7.6.50.20130624-orig/gdb/windows-nat.c	2013-06-11 15:03:42.000000000 +0400
+++ gdb-7.6.50.20130624/gdb/windows-nat.c	2013-07-29 17:16:00.633789100 +0400
@@ -751,9 +751,15 @@
       else
 	error (_("dll path too long"));
     }
+#ifdef __MSYS__
+  /* Record msys-2.0.dll .text start/end.  */
+  p = strchr (so->so_name, '\0') - (sizeof ("/msys-2.0.dll") - 1);
+  if (p >= so->so_name && strcasecmp (p, "/msys-2.0.dll") == 0)
+#else
   /* Record cygwin1.dll .text start/end.  */
   p = strchr (so->so_name, '\0') - (sizeof ("/cygwin1.dll") - 1);
   if (p >= so->so_name && strcasecmp (p, "/cygwin1.dll") == 0)
+#endif
     {
       bfd *abfd;
       asection *text = NULL;
diff -Naur gdb-7.6.50.20130624-orig/libdecnumber/configure gdb-7.6.50.20130624/libdecnumber/configure
--- gdb-7.6.50.20130624-orig/libdecnumber/configure	2013-03-28 06:00:01.000000000 +0400
+++ gdb-7.6.50.20130624/libdecnumber/configure	2013-07-29 17:16:00.680664100 +0400
@@ -4613,6 +4613,9 @@
     i?86*-*-cygwin* | x86_64*-*-cygwin*)
       enable_decimal_float=yes
       ;;
+    i?86*-*-msys* | x86_64*-*-msys*)
+      enable_decimal_float=yes
+      ;;
     *)
       { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: decimal float is not supported for this target, ignored" >&5
 $as_echo "$as_me: WARNING: decimal float is not supported for this target, ignored" >&2;}
diff -Naur gdb-7.6.50.20130624-orig/libiberty/configure gdb-7.6.50.20130624/libiberty/configure
--- gdb-7.6.50.20130624-orig/libiberty/configure	2013-06-01 05:01:43.000000000 +0400
+++ gdb-7.6.50.20130624/libiberty/configure	2013-07-29 17:16:00.711914100 +0400
@@ -4896,6 +4896,8 @@
 	;;
     i[34567]86-*-cygwin* | x86_64-*-cygwin*)
 	;;
+    i[34567]86-*-msys* | x86_64-*-msys*)
+	;;
     i[34567]86-*-mingw* | x86_64-*-mingw*)
 	;;
     i[34567]86-*-interix[3-9]*)
@@ -5801,7 +5803,7 @@
 
 
 case "${host}" in
-  *-*-cygwin* | *-*-mingw*)
+  *-*-cygwin* | *-*-msys* | *-*-mingw*)
     $as_echo "#define HAVE_SYS_ERRLIST 1" >>confdefs.h
 
     $as_echo "#define HAVE_SYS_NERR 1" >>confdefs.h
diff -Naur gdb-7.6.50.20130624-orig/libiberty/configure.ac gdb-7.6.50.20130624/libiberty/configure.ac
--- gdb-7.6.50.20130624-orig/libiberty/configure.ac	2013-06-01 05:01:44.000000000 +0400
+++ gdb-7.6.50.20130624/libiberty/configure.ac	2013-07-29 17:16:00.743164100 +0400
@@ -528,7 +528,7 @@
 AC_SUBST(target_header_dir)
 
 case "${host}" in
-  *-*-cygwin* | *-*-mingw*)
+  *-*-cygwin* | *-*-msys* | *-*-mingw*)
     AC_DEFINE(HAVE_SYS_ERRLIST)
     AC_DEFINE(HAVE_SYS_NERR)
     ;;
diff -Naur gdb-7.6.50.20130624-orig/libtool.m4 gdb-7.6.50.20130624/libtool.m4
--- gdb-7.6.50.20130624-orig/libtool.m4	2012-09-15 03:55:22.000000000 +0400
+++ gdb-7.6.50.20130624/libtool.m4	2013-07-29 17:16:00.805664100 +0400
@@ -1485,7 +1485,7 @@
     lt_cv_sys_max_cmd_len=-1;
     ;;
 
-  cygwin* | mingw* | cegcc*)
+  cygwin* | msys* | mingw* | cegcc*)
     # On Win9x/ME, this test blows up -- it succeeds, but takes
     # about 5 minutes as the teststring grows exponentially.
     # Worse, since 9x/ME are not pre-emptively multitasking,
@@ -1727,7 +1727,7 @@
     lt_cv_dlopen_libs=
     ;;
 
-  cygwin*)
+  cygwin* | msys*)
     lt_cv_dlopen="dlopen"
     lt_cv_dlopen_libs=
     ;;
@@ -2198,14 +2198,14 @@
   # libtool to hard-code these into programs
   ;;
 
-cygwin* | mingw* | pw32* | cegcc*)
+cygwin* | msys* | mingw* | pw32* | cegcc*)
   version_type=windows
   shrext_cmds=".dll"
   need_version=no
   need_lib_prefix=no
 
   case $GCC,$host_os in
-  yes,cygwin* | yes,mingw* | yes,pw32* | yes,cegcc*)
+  yes,cygwin* | yes,msys* | yes,mingw* | yes,pw32* | yes,cegcc*)
     library_names_spec='$libname.dll.a'
     # DLL is installed to $(libdir)/../bin by postinstall_cmds
     postinstall_cmds='base_file=`basename \${file}`~
@@ -2229,6 +2229,12 @@
 m4_if([$1], [],[
       sys_lib_search_path_spec="$sys_lib_search_path_spec /usr/lib/w32api"])
       ;;
+    msys*)
+      # Msys DLLs use 'msys-' prefix rather than 'lib'
+      soname_spec='`echo ${libname} | sed -e 's/^lib/msys-/'``echo ${release} | $SED -e 's/[[.]]/-/g'`${versuffix}${shared_ext}'
+m4_if([$1], [],[
+      sys_lib_search_path_spec="$sys_lib_search_path_spec /usr/lib/w32api"])
+      ;;
     mingw* | cegcc*)
       # MinGW DLLs use traditional 'lib' prefix
       soname_spec='${libname}`echo ${release} | $SED -e 's/[[.]]/-/g'`${versuffix}${shared_ext}'
@@ -2995,7 +3001,7 @@
   lt_cv_file_magic_test_file=/shlib/libc.so
   ;;
 
-cygwin*)
+cygwin* | msys*)
   # func_win32_libid is a shell function defined in ltmain.sh
   lt_cv_deplibs_check_method='file_magic ^x86 archive import|^x86 DLL'
   lt_cv_file_magic_cmd='func_win32_libid'
@@ -3279,7 +3285,7 @@
 [AC_REQUIRE([AC_CANONICAL_HOST])dnl
 LIBM=
 case $host in
-*-*-beos* | *-*-cegcc* | *-*-cygwin* | *-*-haiku* | *-*-pw32* | *-*-darwin*)
+*-*-beos* | *-*-cegcc* | *-*-cygwin* | *-*-msys* | *-*-haiku* | *-*-pw32* | *-*-darwin*)
   # These system don't have libm, or don't need it
   ;;
 *-ncr-sysv4.3*)
@@ -3354,7 +3360,7 @@
 aix*)
   symcode='[[BCDT]]'
   ;;
-cygwin* | mingw* | pw32* | cegcc*)
+cygwin* | msys* | mingw* | pw32* | cegcc*)
   symcode='[[ABCDGISTW]]'
   ;;
 hpux*)
@@ -3601,7 +3607,7 @@
     beos* | irix5* | irix6* | nonstopux* | osf3* | osf4* | osf5*)
       # PIC is the default for these OSes.
       ;;
-    mingw* | cygwin* | os2* | pw32* | cegcc*)
+    mingw* | cygwin* | msys* | os2* | pw32* | cegcc*)
       # This hack is so that the source file can tell whether it is being
       # built for inclusion in a dll (and should export symbols for example).
       # Although the cygwin gcc ignores -fPIC, still need this for old-style
@@ -3914,7 +3920,7 @@
       # PIC is the default for these OSes.
       ;;
 
-    mingw* | cygwin* | pw32* | os2* | cegcc*)
+    mingw* | cygwin* | msys* | pw32* | os2* | cegcc*)
       # This hack is so that the source file can tell whether it is being
       # built for inclusion in a dll (and should export symbols for example).
       # Although the cygwin gcc ignores -fPIC, still need this for old-style
@@ -3997,7 +4003,7 @@
       fi
       ;;
 
-    mingw* | cygwin* | pw32* | os2* | cegcc*)
+    mingw* | cygwin* | msys* | pw32* | os2* | cegcc*)
       # This hack is so that the source file can tell whether it is being
       # built for inclusion in a dll (and should export symbols for example).
       m4_if([$1], [GCJ], [],
@@ -4230,7 +4236,7 @@
   pw32*)
     _LT_TAGVAR(export_symbols_cmds, $1)="$ltdll_cmds"
   ;;
-  cygwin* | mingw* | cegcc*)
+  cygwin* | msys* | mingw* | cegcc*)
     _LT_TAGVAR(export_symbols_cmds, $1)='$NM $libobjs $convenience | $global_symbol_pipe | $SED -e '\''/^[[BCDGRS]][[ ]]/s/.*[[ ]]\([[^ ]]*\)/\1 DATA/;/^.*[[ ]]__nm__/s/^.*[[ ]]__nm__\([[^ ]]*\)[[ ]][[^ ]]*/\1 DATA/;/^I[[ ]]/d;/^[[AITW]][[ ]]/s/.* //'\'' | sort | uniq > $export_symbols'
   ;;
   *)
@@ -4282,7 +4288,7 @@
   extract_expsyms_cmds=
 
   case $host_os in
-  cygwin* | mingw* | pw32* | cegcc*)
+  cygwin* | msys* | mingw* | pw32* | cegcc*)
     # FIXME: the MSVC++ port hasn't been tested in a loooong time
     # When not using gcc, we currently assume that we are using
     # Microsoft Visual C++.
@@ -4397,7 +4403,7 @@
       fi
       ;;
 
-    cygwin* | mingw* | pw32* | cegcc*)
+    cygwin* | msys* | mingw* | pw32* | cegcc*)
       # _LT_TAGVAR(hardcode_libdir_flag_spec, $1) is actually meaningless,
       # as there is no search path for DLLs.
       _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-L$libdir'
@@ -4770,7 +4776,7 @@
       _LT_TAGVAR(export_dynamic_flag_spec, $1)=-rdynamic
       ;;
 
-    cygwin* | mingw* | pw32* | cegcc*)
+    cygwin* | msys* | mingw* | pw32* | cegcc*)
       # When not using gcc, we currently assume that we are using
       # Microsoft Visual C++.
       # hardcode_libdir_flag_spec is actually meaningless, as there is
@@ -5714,7 +5720,7 @@
         esac
         ;;
 
-      cygwin* | mingw* | pw32* | cegcc*)
+      cygwin* | msys* | mingw* | pw32* | cegcc*)
         # _LT_TAGVAR(hardcode_libdir_flag_spec, $1) is actually meaningless,
         # as there is no search path for DLLs.
         _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-L$libdir'
diff -Naur gdb-7.6.50.20130624-orig/ltmain.sh gdb-7.6.50.20130624/ltmain.sh
--- gdb-7.6.50.20130624-orig/ltmain.sh	2011-01-13 21:52:53.000000000 +0300
+++ gdb-7.6.50.20130624/ltmain.sh	2013-07-29 17:16:00.836914100 +0400
@@ -976,7 +976,7 @@
 
 
   case $host in
-    *cygwin* | *mingw* | *pw32* | *cegcc* | *solaris2* )
+    *cygwin* | *msys* | *mingw* | *pw32* | *cegcc* | *solaris2* )
       # don't eliminate duplications in $postdeps and $predeps
       opt_duplicate_compiler_generated_deps=:
       ;;
@@ -1453,7 +1453,7 @@
 
     # On Cygwin there's no "real" PIC flag so we must build both object types
     case $host_os in
-    cygwin* | mingw* | pw32* | os2* | cegcc*)
+    cygwin* | msys* | mingw* | pw32* | os2* | cegcc*)
       pic_mode=default
       ;;
     esac
@@ -2279,7 +2279,7 @@
 	      'exit $?'
 	  tstripme="$stripme"
 	  case $host_os in
-	  cygwin* | mingw* | pw32* | cegcc*)
+	  cygwin* | msys* | mingw* | pw32* | cegcc*)
 	    case $realname in
 	    *.dll.a)
 	      tstripme=""
@@ -2385,7 +2385,7 @@
 
 	# Do a test to see if this is really a libtool program.
 	case $host in
-	*cygwin* | *mingw*)
+	*cygwin* | *msys* | *mingw*)
 	    if func_ltwrapper_executable_p "$file"; then
 	      func_ltwrapper_scriptname "$file"
 	      wrapper=$func_ltwrapper_scriptname_result
@@ -2460,7 +2460,7 @@
 	# remove .exe since cygwin /usr/bin/install will append another
 	# one anyway
 	case $install_prog,$host in
-	*/usr/bin/install*,*cygwin*)
+	*/usr/bin/install*,*cygwin*|*/usr/bin/install*,*msys*)
 	  case $file:$destfile in
 	  *.exe:*.exe)
 	    # this is ok
@@ -2595,7 +2595,7 @@
 	      $RM $export_symbols
 	      ${SED} -n -e '/^: @PROGRAM@ $/d' -e 's/^.* \(.*\)$/\1/p' < "$nlist" > "$export_symbols"
 	      case $host in
-	      *cygwin* | *mingw* | *cegcc* )
+	      *cygwin* | *msys* | *mingw* | *cegcc* )
                 echo EXPORTS > "$output_objdir/$outputname.def"
                 cat "$export_symbols" >> "$output_objdir/$outputname.def"
 	        ;;
@@ -2607,7 +2607,7 @@
 	      $GREP -f "$output_objdir/$outputname.exp" < "$nlist" > "$nlist"T
 	      $MV "$nlist"T "$nlist"
 	      case $host in
-	        *cygwin* | *mingw* | *cegcc* )
+	        *cygwin* | *msys* | *mingw* | *cegcc* )
 	          echo EXPORTS > "$output_objdir/$outputname.def"
 	          cat "$nlist" >> "$output_objdir/$outputname.def"
 	          ;;
@@ -2663,7 +2663,7 @@
 } lt_dlsymlist;
 "
 	  case $host in
-	  *cygwin* | *mingw* | *cegcc* )
+	  *cygwin* | *msys* | *mingw* | *cegcc* )
 	    echo >> "$output_objdir/$my_dlsyms" "\
 /* DATA imports from DLLs on WIN32 con't be const, because
    runtime relocations are performed -- see ld's documentation
@@ -2749,7 +2749,7 @@
 	# Transform the symbol file into the correct name.
 	symfileobj="$output_objdir/${my_outputname}S.$objext"
 	case $host in
-	*cygwin* | *mingw* | *cegcc* )
+	*cygwin* | *msys* | *mingw* | *cegcc* )
 	  if test -f "$output_objdir/$my_outputname.def"; then
 	    compile_command=`$ECHO "$compile_command" | $SED "s%@SYMFILE@%$output_objdir/$my_outputname.def $symfileobj%"`
 	    finalize_command=`$ECHO "$finalize_command" | $SED "s%@SYMFILE@%$output_objdir/$my_outputname.def $symfileobj%"`
@@ -3192,7 +3192,7 @@
             func_to_host_path_result=`( cmd //c echo "$1" ) 2>/dev/null |
               $SED -e 's/[ ]*$//' -e "$lt_sed_naive_backslashify"`
             ;;
-          *cygwin* )
+          *cygwin* | *msys* )
             func_to_host_path_result=`cygpath -w "$1" |
 	      $SED -e "$lt_sed_naive_backslashify"`
             ;;
@@ -3265,7 +3265,7 @@
 	      ( cmd //c echo "$func_to_host_pathlist_tmp1" ) 2>/dev/null |
 	      $SED -e 's/[ ]*$//' -e "$lt_sed_naive_backslashify"`
             ;;
-          *cygwin* )
+          *cygwin* | *msys* )
             func_to_host_pathlist_result=`cygpath -w -p "$func_to_host_pathlist_tmp1" |
               $SED -e "$lt_sed_naive_backslashify"`
             ;;
@@ -3571,7 +3571,7 @@
 	{
 EOF
 	    case "$host" in
-	      *mingw* | *cygwin* )
+	      *mingw* | *cygwin* | *msys* )
 		# make stdout use "unix" line endings
 		echo "          setmode(1,_O_BINARY);"
 		;;
@@ -4233,7 +4233,7 @@
 {
     $opt_debug
     case $host in
-    *-*-cygwin* | *-*-mingw* | *-*-pw32* | *-*-os2* | *-cegcc*)
+    *-*-cygwin* | *-*-msys* | *-*-mingw* | *-*-pw32* | *-*-os2* | *-cegcc*)
       # It is impossible to link a dll without this setting, and
       # we shouldn't force the makefile maintainer to figure out
       # which system we are compiling for in order to pass an extra
@@ -4713,7 +4713,7 @@
 	  ;;
 	esac
 	case $host in
-	*-*-cygwin* | *-*-mingw* | *-*-pw32* | *-*-os2* | *-cegcc*)
+	*-*-cygwin* | *-*-msys* | *-*-mingw* | *-*-pw32* | *-*-os2* | *-cegcc*)
 	  testbindir=`$ECHO "$dir" | $SED 's*/lib$*/bin*'`
 	  case :$dllsearchpath: in
 	  *":$dir:"*) ;;
@@ -4733,7 +4733,7 @@
       -l*)
 	if test "X$arg" = "X-lc" || test "X$arg" = "X-lm"; then
 	  case $host in
-	  *-*-cygwin* | *-*-mingw* | *-*-pw32* | *-*-beos* | *-cegcc* | *-*-haiku*)
+	  *-*-cygwin* | *-*-msys* | *-*-mingw* | *-*-pw32* | *-*-beos* | *-cegcc* | *-*-haiku*)
 	    # These systems don't actually have a C or math library (as such)
 	    continue
 	    ;;
@@ -4813,7 +4813,7 @@
 
       -no-install)
 	case $host in
-	*-*-cygwin* | *-*-mingw* | *-*-pw32* | *-*-os2* | *-*-darwin* | *-cegcc*)
+	*-*-cygwin* | *-*-msys* | *-*-mingw* | *-*-pw32* | *-*-os2* | *-*-darwin* | *-cegcc*)
 	  # The PATH hackery in wrapper scripts is required on Windows
 	  # and Darwin in order for the loader to find any dlls it needs.
 	  func_warning "\`-no-install' is ignored for $host"
@@ -5772,7 +5772,7 @@
 	if test -n "$library_names" &&
 	   { test "$use_static_libs" = no || test -z "$old_library"; }; then
 	  case $host in
-	  *cygwin* | *mingw* | *cegcc*)
+	  *cygwin* | *msys* | *mingw* | *cegcc*)
 	      # No point in relinking DLLs because paths are not encoded
 	      notinst_deplibs="$notinst_deplibs $lib"
 	      need_relink=no
@@ -5842,7 +5842,7 @@
 	    elif test -n "$soname_spec"; then
 	      # bleh windows
 	      case $host in
-	      *cygwin* | mingw* | *cegcc*)
+	      *cygwin* | *msys* | mingw* | *cegcc*)
 	        func_arith $current - $age
 		major=$func_arith_result
 		versuffix="-$major"
@@ -6693,7 +6693,7 @@
       if test "$build_libtool_libs" = yes; then
 	if test -n "$rpath"; then
 	  case $host in
-	  *-*-cygwin* | *-*-mingw* | *-*-pw32* | *-*-os2* | *-*-beos* | *-cegcc* | *-*-haiku*)
+	  *-*-cygwin* | *-*-msys* | *-*-mingw* | *-*-pw32* | *-*-os2* | *-*-beos* | *-cegcc* | *-*-haiku*)
 	    # these systems don't actually have a c library (as such)!
 	    ;;
 	  *-*-rhapsody* | *-*-darwin1.[012])
@@ -7194,7 +7194,7 @@
 
 	orig_export_symbols=
 	case $host_os in
-	cygwin* | mingw* | cegcc*)
+	cygwin* | msys* | mingw* | cegcc*)
 	  if test -n "$export_symbols" && test -z "$export_symbols_regex"; then
 	    # exporting using user supplied symfile
 	    if test "x`$SED 1q $export_symbols`" != xEXPORTS; then
@@ -7710,7 +7710,7 @@
 
     prog)
       case $host in
-	*cygwin*) func_stripname '' '.exe' "$output"
+	*cygwin* | *msys*) func_stripname '' '.exe' "$output"
 	          output=$func_stripname_result.exe;;
       esac
       test -n "$vinfo" && \
@@ -7823,7 +7823,7 @@
 	  esac
 	fi
 	case $host in
-	*-*-cygwin* | *-*-mingw* | *-*-pw32* | *-*-os2* | *-cegcc*)
+	*-*-cygwin* | *-*-msys* | *-*-mingw* | *-*-pw32* | *-*-os2* | *-cegcc*)
 	  testbindir=`${ECHO} "$libdir" | ${SED} -e 's*/lib$*/bin*'`
 	  case :$dllsearchpath: in
 	  *":$libdir:"*) ;;
@@ -7901,7 +7901,7 @@
         # Disable wrappers for cegcc and mingw32ce hosts, we are cross compiling anyway.
         wrappers_required=no
         ;;
-      *cygwin* | *mingw* )
+      *cygwin* | *msys* | *mingw* )
         if test "$build_libtool_libs" != yes; then
           wrappers_required=no
         fi
@@ -8029,14 +8029,14 @@
 	esac
 	# test for cygwin because mv fails w/o .exe extensions
 	case $host in
-	  *cygwin*)
+	  *cygwin* | *msys*)
 	    exeext=.exe
 	    func_stripname '' '.exe' "$outputname"
 	    outputname=$func_stripname_result ;;
 	  *) exeext= ;;
 	esac
 	case $host in
-	  *cygwin* | *mingw* )
+	  *cygwin* | *msys* | *mingw* )
 	    func_dirname_and_basename "$output" "" "."
 	    output_name=$func_basename_result
 	    output_path=$func_dirname_result
@@ -8343,7 +8343,7 @@
 	  # tests/bindir.at for full details.
 	  tdlname=$dlname
 	  case $host,$output,$installed,$module,$dlname in
-	    *cygwin*,*lai,yes,no,*.dll | *mingw*,*lai,yes,no,*.dll | *cegcc*,*lai,yes,no,*.dll)
+	    *cygwin*,*lai,yes,no,*.dll | *msys*,*lai,yes,no,*.dll | *mingw*,*lai,yes,no,*.dll | *cegcc*,*lai,yes,no,*.dll)
 	      # If a -bindir argument was supplied, place the dll there.
 	      if test "x$bindir" != x ;
 	      then
diff -Naur gdb-7.6.50.20130624-orig/ltoptions.m4 gdb-7.6.50.20130624/ltoptions.m4
--- gdb-7.6.50.20130624-orig/ltoptions.m4	2010-01-10 00:11:32.000000000 +0300
+++ gdb-7.6.50.20130624/ltoptions.m4	2013-07-29 17:16:00.883789100 +0400
@@ -126,7 +126,7 @@
 [enable_win32_dll=yes
 
 case $host in
-*-*-cygwin* | *-*-mingw* | *-*-pw32* | *-*-cegcc*)
+*-*-cygwin* | *-*-msys* | *-*-mingw* | *-*-pw32* | *-*-cegcc*)
   AC_CHECK_TOOL(AS, as, false)
   AC_CHECK_TOOL(DLLTOOL, dlltool, false)
   AC_CHECK_TOOL(OBJDUMP, objdump, false)
diff -Naur gdb-7.6.50.20130624-orig/opcodes/configure gdb-7.6.50.20130624/opcodes/configure
--- gdb-7.6.50.20130624-orig/opcodes/configure	2013-06-21 19:01:57.000000000 +0400
+++ gdb-7.6.50.20130624/opcodes/configure	2013-07-29 17:16:00.883789100 +0400
@@ -5717,7 +5717,7 @@
     lt_cv_sys_max_cmd_len=-1;
     ;;
 
-  cygwin* | mingw* | cegcc*)
+  cygwin* | msys* | mingw* | cegcc*)
     # On Win9x/ME, this test blows up -- it succeeds, but takes
     # about 5 minutes as the teststring grows exponentially.
     # Worse, since 9x/ME are not pre-emptively multitasking,
@@ -6059,7 +6059,7 @@
   lt_cv_file_magic_test_file=/shlib/libc.so
   ;;
 
-cygwin*)
+cygwin* | msys*)
   # func_win32_libid is a shell function defined in ltmain.sh
   lt_cv_deplibs_check_method='file_magic ^x86 archive import|^x86 DLL'
   lt_cv_file_magic_cmd='func_win32_libid'
@@ -6639,7 +6639,7 @@
 aix*)
   symcode='[BCDT]'
   ;;
-cygwin* | mingw* | pw32* | cegcc*)
+cygwin* | msys* | mingw* | pw32* | cegcc*)
   symcode='[ABCDGISTW]'
   ;;
 hpux*)
@@ -8218,7 +8218,7 @@
       # PIC is the default for these OSes.
       ;;
 
-    mingw* | cygwin* | pw32* | os2* | cegcc*)
+    mingw* | cygwin* | msys* | pw32* | os2* | cegcc*)
       # This hack is so that the source file can tell whether it is being
       # built for inclusion in a dll (and should export symbols for example).
       # Although the cygwin gcc ignores -fPIC, still need this for old-style
@@ -8300,7 +8300,7 @@
       fi
       ;;
 
-    mingw* | cygwin* | pw32* | os2* | cegcc*)
+    mingw* | cygwin* | msys* | pw32* | os2* | cegcc*)
       # This hack is so that the source file can tell whether it is being
       # built for inclusion in a dll (and should export symbols for example).
       lt_prog_compiler_pic='-DDLL_EXPORT'
@@ -8762,7 +8762,7 @@
   extract_expsyms_cmds=
 
   case $host_os in
-  cygwin* | mingw* | pw32* | cegcc*)
+  cygwin* | msys* | mingw* | pw32* | cegcc*)
     # FIXME: the MSVC++ port hasn't been tested in a loooong time
     # When not using gcc, we currently assume that we are using
     # Microsoft Visual C++.
@@ -8877,7 +8877,7 @@
       fi
       ;;
 
-    cygwin* | mingw* | pw32* | cegcc*)
+    cygwin* | msys* | mingw* | pw32* | cegcc*)
       # _LT_TAGVAR(hardcode_libdir_flag_spec, ) is actually meaningless,
       # as there is no search path for DLLs.
       hardcode_libdir_flag_spec='-L$libdir'
@@ -9308,7 +9308,7 @@
       export_dynamic_flag_spec=-rdynamic
       ;;
 
-    cygwin* | mingw* | pw32* | cegcc*)
+    cygwin* | msys* | mingw* | pw32* | cegcc*)
       # When not using gcc, we currently assume that we are using
       # Microsoft Visual C++.
       # hardcode_libdir_flag_spec is actually meaningless, as there is
@@ -10209,14 +10209,14 @@
   # libtool to hard-code these into programs
   ;;
 
-cygwin* | mingw* | pw32* | cegcc*)
+cygwin* | msys* | mingw* | pw32* | cegcc*)
   version_type=windows
   shrext_cmds=".dll"
   need_version=no
   need_lib_prefix=no
 
   case $GCC,$host_os in
-  yes,cygwin* | yes,mingw* | yes,pw32* | yes,cegcc*)
+  yes,cygwin* | yes,msys* | yes,mingw* | yes,pw32* | yes,cegcc*)
     library_names_spec='$libname.dll.a'
     # DLL is installed to $(libdir)/../bin by postinstall_cmds
     postinstall_cmds='base_file=`basename \${file}`~
@@ -10240,6 +10240,12 @@
 
       sys_lib_search_path_spec="$sys_lib_search_path_spec /usr/lib/w32api"
       ;;
+    msys*)
+      # Msys DLLs use 'msys-' prefix rather than 'lib'
+      soname_spec='`echo ${libname} | sed -e 's/^lib/msys-/'``echo ${release} | $SED -e 's/[.]/-/g'`${versuffix}${shared_ext}'
+
+      sys_lib_search_path_spec="$sys_lib_search_path_spec /usr/lib/w32api"
+      ;;
     mingw* | cegcc*)
       # MinGW DLLs use traditional 'lib' prefix
       soname_spec='${libname}`echo ${release} | $SED -e 's/[.]/-/g'`${versuffix}${shared_ext}'
@@ -10876,7 +10882,7 @@
     lt_cv_dlopen_libs=
     ;;
 
-  cygwin*)
+  cygwin* | msys*)
     lt_cv_dlopen="dlopen"
     lt_cv_dlopen_libs=
     ;;
@@ -12247,7 +12253,7 @@
 
 LIBM=
 case $host in
-*-*-beos* | *-*-cegcc* | *-*-cygwin* | *-*-haiku* | *-*-pw32* | *-*-darwin*)
+*-*-beos* | *-*-cegcc* | *-*-cygwin* | *-*-msys* | *-*-haiku* | *-*-pw32* | *-*-darwin*)
   # These system don't have libm, or don't need it
   ;;
 *-ncr-sysv4.3*)
@@ -12417,6 +12423,10 @@
       SHARED_LDFLAGS="-no-undefined"
       SHARED_LIBADD="-L`pwd`/../bfd -lbfd -L`pwd`/../libiberty -liberty -L`pwd`/../intl -lintl -lcygwin"
       ;;
+    *-*-msys*)
+      SHARED_LDFLAGS="-no-undefined"
+      SHARED_LIBADD="-L`pwd`/../bfd -lbfd -L`pwd`/../libiberty -liberty -L`pwd`/../intl -lintl -lmsys-2.0"
+      ;;
    *-*-darwin*)
      SHARED_LIBADD="-Wl,`pwd`/../bfd/.libs/libbfd.dylib ${SHARED_LIBADD}"
      SHARED_DEPENDENCIES="../bfd/libbfd.la"
diff -Naur gdb-7.6.50.20130624-orig/opcodes/configure.in gdb-7.6.50.20130624/opcodes/configure.in
--- gdb-7.6.50.20130624-orig/opcodes/configure.in	2013-06-21 19:01:57.000000000 +0400
+++ gdb-7.6.50.20130624/opcodes/configure.in	2013-07-29 17:16:00.930664100 +0400
@@ -170,6 +170,10 @@
       SHARED_LDFLAGS="-no-undefined"
       SHARED_LIBADD="-L`pwd`/../bfd -lbfd -L`pwd`/../libiberty -liberty -L`pwd`/../intl -lintl -lcygwin"
       ;;
+    *-*-msys*)
+      SHARED_LDFLAGS="-no-undefined"
+      SHARED_LIBADD="-L`pwd`/../bfd -lbfd -L`pwd`/../libiberty -liberty -L`pwd`/../intl -lintl -lmsys-2.0"
+      ;;
    *-*-darwin*)
      SHARED_LIBADD="-Wl,`pwd`/../bfd/.libs/libbfd.dylib ${SHARED_LIBADD}"
      SHARED_DEPENDENCIES="../bfd/libbfd.la"
diff -Naur gdb-7.6.50.20130624-orig/readline/configure gdb-7.6.50.20130624/readline/configure
--- gdb-7.6.50.20130624-orig/readline/configure	2013-05-22 13:51:49.000000000 +0400
+++ gdb-7.6.50.20130624/readline/configure	2013-07-29 17:16:00.946289100 +0400
@@ -2337,7 +2337,7 @@
 CROSS_COMPILE=
 if test "x$cross_compiling" = "xyes"; then
     case "${host}" in
-    *-cygwin*)
+    *-cygwin* | *-msys*)
         cross_cache=${srcdir}/cross-build/cygwin.cache
         ;;
     *-mingw*)
diff -Naur gdb-7.6.50.20130624-orig/readline/configure.in gdb-7.6.50.20130624/readline/configure.in
--- gdb-7.6.50.20130624-orig/readline/configure.in	2013-05-22 13:51:49.000000000 +0400
+++ gdb-7.6.50.20130624/readline/configure.in	2013-07-29 17:16:00.961914100 +0400
@@ -81,7 +81,7 @@
 CROSS_COMPILE=
 if test "x$cross_compiling" = "xyes"; then
     case "${host}" in
-    *-cygwin*)
+    *-cygwin* | *-msys*)
         cross_cache=${srcdir}/cross-build/cygwin.cache
         ;;
     *-mingw*)
diff -Naur gdb-7.6.50.20130624-orig/readline/support/config.guess gdb-7.6.50.20130624/readline/support/config.guess
--- gdb-7.6.50.20130624-orig/readline/support/config.guess	2011-05-12 03:38:44.000000000 +0400
+++ gdb-7.6.50.20130624/readline/support/config.guess	2013-07-29 17:16:00.961914100 +0400
@@ -781,6 +781,9 @@
     i*:CYGWIN*:*)
 	echo ${UNAME_MACHINE}-pc-cygwin
 	exit ;;
+    i*:MSYS*:*)
+	echo ${UNAME_MACHINE}-pc-msys
+	exit ;;
     *:MINGW*:*)
 	echo ${UNAME_MACHINE}-pc-mingw32
 	exit ;;
@@ -818,6 +821,9 @@
     amd64:CYGWIN*:*:* | x86_64:CYGWIN*:*:*)
 	echo x86_64-unknown-cygwin
 	exit ;;
+    amd64:MSYS*:*:* | x86_64:MSYS*:*:*)
+	echo x86_64-unknown-msys
+	exit ;;
     p*:CYGWIN*:*)
 	echo powerpcle-unknown-cygwin
 	exit ;;
diff -Naur gdb-7.6.50.20130624-orig/readline/support/config.rpath gdb-7.6.50.20130624/readline/support/config.rpath
--- gdb-7.6.50.20130624-orig/readline/support/config.rpath	2011-05-12 03:38:44.000000000 +0400
+++ gdb-7.6.50.20130624/readline/support/config.rpath	2013-07-29 17:16:01.008789100 +0400
@@ -108,7 +108,7 @@
 hardcode_minus_L=no
 
 case "$host_os" in
-  cygwin* | mingw* | pw32*)
+  cygwin* | msys* | mingw* | pw32*)
     # FIXME: the MSVC++ port hasn't been tested in a loooong time
     # When not using gcc, we currently assume that we are using
     # Microsoft Visual C++.
@@ -148,7 +148,7 @@
         ld_shlibs=no
       fi
       ;;
-    cygwin* | mingw* | pw32*)
+    cygwin* | msys* | mingw* | pw32*)
       # hardcode_libdir_flag_spec is actually meaningless, as there is
       # no search path for DLLs.
       hardcode_libdir_flag_spec='-L$libdir'
@@ -267,7 +267,7 @@
       ;;
     bsdi4*)
       ;;
-    cygwin* | mingw* | pw32*)
+    cygwin* | msys* | mingw* | pw32*)
       # When not using gcc, we currently assume that we are using
       # Microsoft Visual C++.
       # hardcode_libdir_flag_spec is actually meaningless, as there is
@@ -439,7 +439,7 @@
     ;;
   bsdi4*)
     ;;
-  cygwin* | mingw* | pw32*)
+  cygwin* | msys* | mingw* | pw32*)
     shrext=.dll
     ;;
   darwin* | rhapsody*)
diff -Naur gdb-7.6.50.20130624-orig/readline/support/config.sub gdb-7.6.50.20130624/readline/support/config.sub
--- gdb-7.6.50.20130624-orig/readline/support/config.sub	2011-05-12 03:38:44.000000000 +0400
+++ gdb-7.6.50.20130624/readline/support/config.sub	2013-07-29 17:16:01.040039100 +0400
@@ -1256,7 +1256,7 @@
 	      | -ptx* | -coff* | -ecoff* | -winnt* | -domain* | -vsta* \
 	      | -udi* | -eabi* | -lites* | -ieee* | -go32* | -aux* \
 	      | -chorusos* | -chorusrdb* \
-	      | -cygwin* | -pe* | -psos* | -moss* | -proelf* | -rtems* \
+	      | -cygwin* | -msys* | -pe* | -psos* | -moss* | -proelf* | -rtems* \
 	      | -mingw32* | -linux-gnu* | -linux-newlib* | -linux-uclibc* \
 	      | -uxpv* | -beos* | -mpeix* | -udk* \
 	      | -interix* | -uwin* | -mks* | -rhapsody* | -darwin* | -opened* \
diff -Naur gdb-7.6.50.20130624-orig/readline/support/shlib-install gdb-7.6.50.20130624/readline/support/shlib-install
--- gdb-7.6.50.20130624-orig/readline/support/shlib-install	2011-05-12 03:38:44.000000000 +0400
+++ gdb-7.6.50.20130624/readline/support/shlib-install	2013-07-29 17:16:01.040039100 +0400
@@ -90,6 +90,22 @@
 		${echo} ${RM} ${BINDIR}/${LIBNAME}
 		${echo} ${RM} ${INSTALLDIR}/${IMPLIBNAME}
 	fi ;;
+msys*)
+	IMPLIBNAME=`echo ${LIBNAME} \
+		| sed -e 's,^msys-,lib,' -e 's,[0-9]*.dll$,.dll.a,'`
+	if [ -z "$uninstall" ]; then
+		${echo} $RM ${BINDIR}/${LIBNAME}.${OLDSUFF}
+		if [ -f "$BINDIR/$LIBNAME" ]; then
+			${echo} $MV $BINDIR/$LIBNAME $BINDIR/$LIBNAME.$OLDSUFF
+		fi
+		${echo} $MV ${INSTALLDIR}/${LIBNAME} ${BINDIR}/${LIBNAME}
+		${echo} chmod a+x ${BINDIR}/${LIBNAME}
+		${echo} eval ${INSTALLPROG} ${LIBNAME}.a \
+			${INSTALLDIR}/${IMPLIBNAME}
+	else
+		${echo} ${RM} ${BINDIR}/${LIBNAME}
+		${echo} ${RM} ${INSTALLDIR}/${IMPLIBNAME}
+	fi ;;
 
 *)	;;
 esac
@@ -193,7 +209,7 @@
 	fi
 	;;
 
-cygwin*|mingw*)
+cygwin*|msys*|mingw*)
 	# Links to .dlls don't work.  Hence shobj-conf used DLLVERSION.dll
 	# instead of so.SHLIB_MAJOR.SHLIB_MINOR.  The postinstall above
 	# took care of everything else.
diff -Naur gdb-7.6.50.20130624-orig/readline/support/shobj-conf gdb-7.6.50.20130624/readline/support/shobj-conf
--- gdb-7.6.50.20130624-orig/readline/support/shobj-conf	2011-05-12 03:38:44.000000000 +0400
+++ gdb-7.6.50.20130624/readline/support/shobj-conf	2013-07-29 17:16:01.040039100 +0400
@@ -519,6 +519,23 @@
 		SHLIB_DLLVERSION="$DLLVERSION"
 	fi
 	;;
+msys*)
+	SHOBJ_LD='$(CC)'
+	SHOBJ_LDFLAGS='-shared -Wl,--enable-auto-import -Wl,--enable-auto-image-base -Wl,--export-all -Wl,--out-implib=$(@).a'
+	SHLIB_LIBPREF='msys-'
+	SHLIB_LIBSUFF='dll'
+	SHLIB_LIBVERSION='$(SHLIB_DLLVERSION).$(SHLIB_LIBSUFF)'
+	SHLIB_LIBS='$(TERMCAP_LIB)'
+
+	SHLIB_DOT=
+	# For official msys releases, DLLVERSION will be defined in the
+	# environment of configure, and will be incremented any time the API
+	# changes in a non-backwards compatible manner.  Otherwise, it is just
+	# SHLIB_MAJOR.
+	if [ -n "$DLLVERSION" ] ; then
+		SHLIB_DLLVERSION="$DLLVERSION"
+	fi
+	;;
 
 mingw*)
 	SHOBJ_LD='$(CC)'