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Add support for using gcc's visibility pragma to treat all function and method declarations as "hidden" unless declared otherwise. Create wrappers for system headers that cause them to be treated as default-visibility declarations. This gives a substantial code size and performance win on compilers that support it, and should show up on the gruff tinderbox. Bug 273336, r=darin sr=dbaron.

Browse Source 
git-svn-id: svn://10.0.0.236/branches/NSPRPUB_PRE_4_2_CLIENT_BRANCH@166738 18797224-902f-48f8-a5cc-f745e15eee43
This commit is contained in:
bryner%brianryner.com
2004-12-15 05:52:44 +00:00
parent 68d9f13bd7
commit 3330771ecd
10 changed files with 564 additions and 91 deletions
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6
mozilla/nsprpub/config/Makefile.in
View File

@@ -133,6 +133,12 @@ define MAKE_OBJDIR
if test ! -d $(@D); then rm -rf $(@D); mkdir $(@D); else true; fi
endef
ifdef WRAP_SYSTEM_INCLUDES
export::
mkdir -p $(dist_includedir)/system_wrappers
$(PERL) $(srcdir)/make-system-wrappers.pl $(dist_includedir)/system_wrappers < $(srcdir)/system-headers
endif
export:: $(TARGETS)
rm -f $(dist_bindir)/nspr-config

3
mozilla/nsprpub/config/autoconf.mk.in
View File

@@ -111,3 +111,6 @@ OBJECT_MODE = @OBJECT_MODE@
ifdef OBJECT_MODE
export OBJECT_MODE
endif
VISIBILITY_FLAGS = @VISIBILITY_FLAGS@
WRAP_SYSTEM_INCLUDES = @WRAP_SYSTEM_INCLUDES@

8
mozilla/nsprpub/config/config.mk
View File

@@ -62,10 +62,10 @@ endif
NFSPWD = $(MOD_DEPTH)/config/nfspwd
CFLAGS = $(CC_ONLY_FLAGS) $(OPTIMIZER) $(OS_CFLAGS)\
$(XP_DEFINE) $(DEFINES) $(INCLUDES) $(XCFLAGS)
CCCFLAGS = $(CCC_ONLY_FLAGS) $(OPTIMIZER) $(OS_CFLAGS)\
$(XP_DEFINE) $(DEFINES) $(INCLUDES) $(XCFLAGS)
CFLAGS = $(VISIBILITY_FLAGS) $(CC_ONLY_FLAGS) $(OPTIMIZER)\
$(OS_CFLAGS) $(XP_DEFINE) $(DEFINES) $(INCLUDES) $(XCFLAGS)
CCCFLAGS = $(VISIBILITY_FLAGS) $(CCC_ONLY_FLAGS) $(OPTIMIZER)\
$(OS_CFLAGS) $(XP_DEFINE) $(DEFINES) $(INCLUDES) $(XCFLAGS)
# For purify
NOMD_CFLAGS = $(CC_ONLY_FLAGS) $(OPTIMIZER) $(NOMD_OS_CFLAGS)\
$(XP_DEFINE) $(DEFINES) $(INCLUDES) $(XCFLAGS)

2
mozilla/nsprpub/config/gcc_hidden.h Normal file
View File

@@ -0,0 +1,2 @@
/* Begin all files as hidden visibility */
#pragma GCC visibility push(hidden)

59
mozilla/nsprpub/config/make-system-wrappers.pl Normal file
View File

@@ -0,0 +1,59 @@
#!/usr/bin/perl
#
# ***** BEGIN LICENSE BLOCK *****
# Version: MPL 1.1/GPL 2.0/LGPL 2.1
#
# The contents of this file are subject to the Mozilla Public License Version
# 1.1 (the "License"); you may not use this file except in compliance with
# the License. You may obtain a copy of the License at
# http://www.mozilla.org/MPL/
#
# Software distributed under the License is distributed on an "AS IS" basis,
# WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
# for the specific language governing rights and limitations under the
# License.
#
# The Original Code is mozilla.org code.
#
# The Initial Developer of the Original Code is
# IBM Corporation.
# Portions created by the Initial Developer are Copyright (C) 2004
# the Initial Developer. All Rights Reserved.
#
# Contributor(s):
# Brian Ryner <bryner@brianryner.com>
#
# Alternatively, the contents of this file may be used under the terms of
# either of the GNU General Public License Version 2 or later (the "GPL"),
# or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
# in which case the provisions of the GPL or the LGPL are applicable instead
# of those above. If you wish to allow use of your version of this file only
# under the terms of either the GPL or the LGPL, and not to allow others to
# use your version of this file under the terms of the MPL, indicate your
# decision by deleting the provisions above and replace them with the notice
# and other provisions required by the GPL or the LGPL. If you do not delete
# the provisions above, a recipient may use your version of this file under
# the terms of any one of the MPL, the GPL or the LGPL.
#
# ***** END LICENSE BLOCK *****
$output_dir = shift;
while (<STDIN>) {
chomp;
if (-e "$output_dir/$_") {
next;
}
if (/(.*)\/[^\/*]/) {
mkdir "$output_dir/$1";
}
open OUT, ">$output_dir/$_";
print OUT "#pragma GCC system_header\n"; # suppress include_next warning
print OUT "#pragma GCC visibility push(default)\n";
print OUT "#include_next \<$_\>\n";
print OUT "#pragma GCC visibility pop\n";
close OUT;
}

168
mozilla/nsprpub/config/system-headers Normal file
View File

@@ -0,0 +1,168 @@
Aliases.h
arpa/inet.h
assert.h
bsd/libc.h
bsd/syscall.h
bstring.h
builtin.h
c_asm.h
CFBundle.h
CFData.h
CFDictionary.h
CFString.h
CFURL.h
CodeFragments.h
commdlg.h
crt_externs.h
crypt.h
ctype.h
descrip.h
Devices.h
direct.h
dirent.h
dlfcn.h
dl.h
DriverServices.h
dvidef.h
errno.h
Errors.h
Events.h
fcntl.h
fibdef.h
files.h
Files.h
float.h
Folders.h
Gestalt.h
getopt.h
grp.h
ia64/sys/inline.h
ifaddrs.h
image.h
ints.h
iodef.h
io.h
iostream.h
kernel/OS.h
lib$routines.h
limits.h
loader.h
locale.h
LowMem.h
MacErrors.h
machine/builtins.h
machine/clock.h
machine/endian.h
machine/inline.h
mach-o/dyld.h
MacTypes.h
Math64.h
math.h
mbstring.h
memory.h
MixedMode.h
model.h
mswsock.h
Multiprocessing.h
mutex.h
netdb.h
net/if.h
netinet/in.h
netinet/in_systm.h
netinet/tcp.h
OpenTptInternet.h
OpenTransport.h
os2.h
OS.h
osreldate.h
OSUtils.h
poll.h
PPCToolbox.h
Processes.h
process.h
pthread.h
pwd.h
QDOffscreen.h
Resources.h
rld_interface.h
rpc/types.h
semaphore.h
setjmp.h
share.h
signal.h
ssdef.h
starlet.h
stat.h
stdarg.h
stddef.h
stdio.h
stdlib.h
string.h
stropts.h
stsdef.h
support/SupportDefs.h
support/TLS.h
synch.h
sys/atomic_op.h
syscall.h
sys/file.h
sys/filio.h
sys/immu.h
sys/ioctl.h
sys/ipc.h
sys/ldr.h
sys/locking.h
sys/lwp.h
sys/mman.h
sys/mpctl.h
sys/param.h
sys/pda.h
sys/poll.h
sys/prctl.h
sys/priv.h
sys/procfs.h
sys/pstat.h
sys/regset.h
sys/resource.h
sys/sched.h
sys/select.h
sys/sem.h
sys/sendfile.h
sys/shm.h
sys/socket.h
sys/stack.h
sys/stat.h
sys/statvfs.h
sys/syscall.h
sys/sysctl.h
sys/sysmp.h
sys/syssgi.h
sys/systeminfo.h
sys/timeb.h
sys/time.h
sys/times.h
sys/types.h
sys/ucontext.h
sys/uio.h
sys/utsname.h
sys/wait.h
task.h
TextUtils.h
thread.h
time.h
Timer.h
types.h
Types.h
ucontext.h
ucx$inetdef.h
ulocks.h
unistd.h
unix.h
unixlib.h
utime.h
wchar.h
winbase.h
win/compobj.h
windef.h
windows.h
winsock.h

338
mozilla/nsprpub/configure vendored
View File

@@ -1605,12 +1605,63 @@ else
fi
fi
for ac_declaration in \
''\
'#include <stdlib.h>' \
'extern "C" void std::exit (int) throw (); using std::exit;' \
'extern "C" void std::exit (int); using std::exit;' \
'extern "C" void exit (int) throw ();' \
'extern "C" void exit (int);' \
'void exit (int);'
do
cat > conftest.$ac_ext <<EOF
#line 1619 "configure"
#include "confdefs.h"
#include <stdlib.h>
$ac_declaration
int main() {
exit (42);
; return 0; }
EOF
if { (eval echo configure:1627: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
:
else
echo "configure: failed program was:" >&5
cat conftest.$ac_ext >&5
rm -rf conftest*
continue
fi
rm -f conftest*
cat > conftest.$ac_ext <<EOF
#line 1637 "configure"
#include "confdefs.h"
$ac_declaration
int main() {
exit (42);
; return 0; }
EOF
if { (eval echo configure:1644: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
rm -rf conftest*
break
else
echo "configure: failed program was:" >&5
cat conftest.$ac_ext >&5
fi
rm -f conftest*
done
if test -n "$ac_declaration"; then
echo '#ifdef __cplusplus' >>confdefs.h
echo $ac_declaration >>confdefs.h
echo '#endif' >>confdefs.h
fi
for ac_prog in $RANLIB "${target_alias}-ranlib" "${target}-ranlib"
do
# Extract the first word of "$ac_prog", so it can be a program name with args.
set dummy $ac_prog; ac_word=$2
echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
echo "configure:1614: checking for $ac_word" >&5
echo "configure:1665: checking for $ac_word" >&5
if eval "test \"`echo '$''{'ac_cv_prog_RANLIB'+set}'`\" = set"; then
echo $ac_n "(cached) $ac_c" 1>&6
else
@@ -1645,7 +1696,7 @@ do
# Extract the first word of "$ac_prog", so it can be a program name with args.
set dummy $ac_prog; ac_word=$2
echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
echo "configure:1649: checking for $ac_word" >&5
echo "configure:1700: checking for $ac_word" >&5
if eval "test \"`echo '$''{'ac_cv_prog_AR'+set}'`\" = set"; then
echo $ac_n "(cached) $ac_c" 1>&6
else
@@ -1680,7 +1731,7 @@ do
# Extract the first word of "$ac_prog", so it can be a program name with args.
set dummy $ac_prog; ac_word=$2
echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
echo "configure:1684: checking for $ac_word" >&5
echo "configure:1735: checking for $ac_word" >&5
if eval "test \"`echo '$''{'ac_cv_prog_AS'+set}'`\" = set"; then
echo $ac_n "(cached) $ac_c" 1>&6
else
@@ -1715,7 +1766,7 @@ do
# Extract the first word of "$ac_prog", so it can be a program name with args.
set dummy $ac_prog; ac_word=$2
echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
echo "configure:1719: checking for $ac_word" >&5
echo "configure:1770: checking for $ac_word" >&5
if eval "test \"`echo '$''{'ac_cv_prog_LD'+set}'`\" = set"; then
echo $ac_n "(cached) $ac_c" 1>&6
else
@@ -1750,7 +1801,7 @@ do
# Extract the first word of "$ac_prog", so it can be a program name with args.
set dummy $ac_prog; ac_word=$2
echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
echo "configure:1754: checking for $ac_word" >&5
echo "configure:1805: checking for $ac_word" >&5
if eval "test \"`echo '$''{'ac_cv_prog_STRIP'+set}'`\" = set"; then
echo $ac_n "(cached) $ac_c" 1>&6
else
@@ -1785,7 +1836,7 @@ do
# Extract the first word of "$ac_prog", so it can be a program name with args.
set dummy $ac_prog; ac_word=$2
echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
echo "configure:1789: checking for $ac_word" >&5
echo "configure:1840: checking for $ac_word" >&5
if eval "test \"`echo '$''{'ac_cv_prog_WINDRES'+set}'`\" = set"; then
echo $ac_n "(cached) $ac_c" 1>&6
else
@@ -1822,7 +1873,7 @@ do
# Extract the first word of "$ac_prog", so it can be a program name with args.
set dummy $ac_prog; ac_word=$2
echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
echo "configure:1826: checking for $ac_word" >&5
echo "configure:1877: checking for $ac_word" >&5
if eval "test \"`echo '$''{'ac_cv_prog_CXX'+set}'`\" = set"; then
echo $ac_n "(cached) $ac_c" 1>&6
else
@@ -1854,7 +1905,7 @@ test -n "$CXX" || CXX="gcc"
echo $ac_n "checking whether the C++ compiler ($CXX $CXXFLAGS $LDFLAGS) works""... $ac_c" 1>&6
echo "configure:1858: checking whether the C++ compiler ($CXX $CXXFLAGS $LDFLAGS) works" >&5
echo "configure:1909: checking whether the C++ compiler ($CXX $CXXFLAGS $LDFLAGS) works" >&5
ac_ext=C
# CXXFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
@@ -1865,12 +1916,12 @@ cross_compiling=$ac_cv_prog_cxx_cross
cat > conftest.$ac_ext << EOF
#line 1869 "configure"
#line 1920 "configure"
#include "confdefs.h"
int main(){return(0);}
EOF
if { (eval echo configure:1874: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
if { (eval echo configure:1925: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
ac_cv_prog_cxx_works=yes
# If we can't run a trivial program, we are probably using a cross compiler.
if (./conftest; exit) 2>/dev/null; then
@@ -1896,12 +1947,12 @@ if test $ac_cv_prog_cxx_works = no; then
{ echo "configure: error: installation or configuration problem: C++ compiler cannot create executables." 1>&2; exit 1; }
fi
echo $ac_n "checking whether the C++ compiler ($CXX $CXXFLAGS $LDFLAGS) is a cross-compiler""... $ac_c" 1>&6
echo "configure:1900: checking whether the C++ compiler ($CXX $CXXFLAGS $LDFLAGS) is a cross-compiler" >&5
echo "configure:1951: checking whether the C++ compiler ($CXX $CXXFLAGS $LDFLAGS) is a cross-compiler" >&5
echo "$ac_t""$ac_cv_prog_cxx_cross" 1>&6
cross_compiling=$ac_cv_prog_cxx_cross
echo $ac_n "checking whether we are using GNU C++""... $ac_c" 1>&6
echo "configure:1905: checking whether we are using GNU C++" >&5
echo "configure:1956: checking whether we are using GNU C++" >&5
if eval "test \"`echo '$''{'ac_cv_prog_gxx'+set}'`\" = set"; then
echo $ac_n "(cached) $ac_c" 1>&6
else
@@ -1910,7 +1961,7 @@ else
yes;
#endif
EOF
if { ac_try='${CXX-g++} -E conftest.C'; { (eval echo configure:1914: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }; } | egrep yes >/dev/null 2>&1; then
if { ac_try='${CXX-g++} -E conftest.C'; { (eval echo configure:1965: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }; } | egrep yes >/dev/null 2>&1; then
ac_cv_prog_gxx=yes
else
ac_cv_prog_gxx=no
@@ -1929,7 +1980,7 @@ ac_test_CXXFLAGS="${CXXFLAGS+set}"
ac_save_CXXFLAGS="$CXXFLAGS"
CXXFLAGS=
echo $ac_n "checking whether ${CXX-g++} accepts -g""... $ac_c" 1>&6
echo "configure:1933: checking whether ${CXX-g++} accepts -g" >&5
echo "configure:1984: checking whether ${CXX-g++} accepts -g" >&5
if eval "test \"`echo '$''{'ac_cv_prog_cxx_g'+set}'`\" = set"; then
echo $ac_n "(cached) $ac_c" 1>&6
else
@@ -1960,13 +2011,64 @@ else
fi
fi
for ac_declaration in \
''\
'#include <stdlib.h>' \
'extern "C" void std::exit (int) throw (); using std::exit;' \
'extern "C" void std::exit (int); using std::exit;' \
'extern "C" void exit (int) throw ();' \
'extern "C" void exit (int);' \
'void exit (int);'
do
cat > conftest.$ac_ext <<EOF
#line 2025 "configure"
#include "confdefs.h"
#include <stdlib.h>
$ac_declaration
int main() {
exit (42);
; return 0; }
EOF
if { (eval echo configure:2033: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
:
else
echo "configure: failed program was:" >&5
cat conftest.$ac_ext >&5
rm -rf conftest*
continue
fi
rm -f conftest*
cat > conftest.$ac_ext <<EOF
#line 2043 "configure"
#include "confdefs.h"
$ac_declaration
int main() {
exit (42);
; return 0; }
EOF
if { (eval echo configure:2050: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
rm -rf conftest*
break
else
echo "configure: failed program was:" >&5
cat conftest.$ac_ext >&5
fi
rm -f conftest*
done
if test -n "$ac_declaration"; then
echo '#ifdef __cplusplus' >>confdefs.h
echo $ac_declaration >>confdefs.h
echo '#endif' >>confdefs.h
fi
if test "$CXX" = "cl" -a -z "$CC"; then
CC=$CXX
else
# Extract the first word of "gcc", so it can be a program name with args.
set dummy gcc; ac_word=$2
echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
echo "configure:1970: checking for $ac_word" >&5
echo "configure:2072: checking for $ac_word" >&5
if eval "test \"`echo '$''{'ac_cv_prog_CC'+set}'`\" = set"; then
echo $ac_n "(cached) $ac_c" 1>&6
else
@@ -1996,7 +2098,7 @@ if test -z "$CC"; then
# Extract the first word of "cc", so it can be a program name with args.
set dummy cc; ac_word=$2
echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
echo "configure:2000: checking for $ac_word" >&5
echo "configure:2102: checking for $ac_word" >&5
if eval "test \"`echo '$''{'ac_cv_prog_CC'+set}'`\" = set"; then
echo $ac_n "(cached) $ac_c" 1>&6
else
@@ -2047,7 +2149,7 @@ fi
# Extract the first word of "cl", so it can be a program name with args.
set dummy cl; ac_word=$2
echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
echo "configure:2051: checking for $ac_word" >&5
echo "configure:2153: checking for $ac_word" >&5
if eval "test \"`echo '$''{'ac_cv_prog_CC'+set}'`\" = set"; then
echo $ac_n "(cached) $ac_c" 1>&6
else
@@ -2079,7 +2181,7 @@ fi
fi
echo $ac_n "checking whether the C compiler ($CC $CFLAGS $LDFLAGS) works""... $ac_c" 1>&6
echo "configure:2083: checking whether the C compiler ($CC $CFLAGS $LDFLAGS) works" >&5
echo "configure:2185: checking whether the C compiler ($CC $CFLAGS $LDFLAGS) works" >&5
ac_ext=c
# CFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
@@ -2090,12 +2192,12 @@ cross_compiling=$ac_cv_prog_cc_cross
cat > conftest.$ac_ext << EOF
#line 2094 "configure"
#line 2196 "configure"
#include "confdefs.h"
main(){return(0);}
EOF
if { (eval echo configure:2099: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
if { (eval echo configure:2201: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
ac_cv_prog_cc_works=yes
# If we can't run a trivial program, we are probably using a cross compiler.
if (./conftest; exit) 2>/dev/null; then
@@ -2121,12 +2223,12 @@ if test $ac_cv_prog_cc_works = no; then
{ echo "configure: error: installation or configuration problem: C compiler cannot create executables." 1>&2; exit 1; }
fi
echo $ac_n "checking whether the C compiler ($CC $CFLAGS $LDFLAGS) is a cross-compiler""... $ac_c" 1>&6
echo "configure:2125: checking whether the C compiler ($CC $CFLAGS $LDFLAGS) is a cross-compiler" >&5
echo "configure:2227: checking whether the C compiler ($CC $CFLAGS $LDFLAGS) is a cross-compiler" >&5
echo "$ac_t""$ac_cv_prog_cc_cross" 1>&6
cross_compiling=$ac_cv_prog_cc_cross
echo $ac_n "checking whether we are using GNU C""... $ac_c" 1>&6
echo "configure:2130: checking whether we are using GNU C" >&5
echo "configure:2232: checking whether we are using GNU C" >&5
if eval "test \"`echo '$''{'ac_cv_prog_gcc'+set}'`\" = set"; then
echo $ac_n "(cached) $ac_c" 1>&6
else
@@ -2135,7 +2237,7 @@ else
yes;
#endif
EOF
if { ac_try='${CC-cc} -E conftest.c'; { (eval echo configure:2139: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }; } | egrep yes >/dev/null 2>&1; then
if { ac_try='${CC-cc} -E conftest.c'; { (eval echo configure:2241: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }; } | egrep yes >/dev/null 2>&1; then
ac_cv_prog_gcc=yes
else
ac_cv_prog_gcc=no
@@ -2154,7 +2256,7 @@ ac_test_CFLAGS="${CFLAGS+set}"
ac_save_CFLAGS="$CFLAGS"
CFLAGS=
echo $ac_n "checking whether ${CC-cc} accepts -g""... $ac_c" 1>&6
echo "configure:2158: checking whether ${CC-cc} accepts -g" >&5
echo "configure:2260: checking whether ${CC-cc} accepts -g" >&5
if eval "test \"`echo '$''{'ac_cv_prog_cc_g'+set}'`\" = set"; then
echo $ac_n "(cached) $ac_c" 1>&6
else
@@ -2187,7 +2289,7 @@ fi
fi
echo $ac_n "checking how to run the C preprocessor""... $ac_c" 1>&6
echo "configure:2191: checking how to run the C preprocessor" >&5
echo "configure:2293: checking how to run the C preprocessor" >&5
# On Suns, sometimes $CPP names a directory.
if test -n "$CPP" && test -d "$CPP"; then
CPP=
@@ -2202,13 +2304,13 @@ else
# On the NeXT, cc -E runs the code through the compiler's parser,
# not just through cpp.
cat > conftest.$ac_ext <<EOF
#line 2206 "configure"
#line 2308 "configure"
#include "confdefs.h"
#include <assert.h>
Syntax Error
EOF
ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
{ (eval echo configure:2212: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
{ (eval echo configure:2314: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
ac_err=`grep -v '^ *+' conftest.out | grep -v "^conftest.${ac_ext}\$"`
if test -z "$ac_err"; then
:
@@ -2219,13 +2321,13 @@ else
rm -rf conftest*
CPP="${CC-cc} -E -traditional-cpp"
cat > conftest.$ac_ext <<EOF
#line 2223 "configure"
#line 2325 "configure"
#include "confdefs.h"
#include <assert.h>
Syntax Error
EOF
ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
{ (eval echo configure:2229: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
{ (eval echo configure:2331: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
ac_err=`grep -v '^ *+' conftest.out | grep -v "^conftest.${ac_ext}\$"`
if test -z "$ac_err"; then
:
@@ -2236,13 +2338,13 @@ else
rm -rf conftest*
CPP="${CC-cc} -nologo -E"
cat > conftest.$ac_ext <<EOF
#line 2240 "configure"
#line 2342 "configure"
#include "confdefs.h"
#include <assert.h>
Syntax Error
EOF
ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
{ (eval echo configure:2246: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
{ (eval echo configure:2348: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
ac_err=`grep -v '^ *+' conftest.out | grep -v "^conftest.${ac_ext}\$"`
if test -z "$ac_err"; then
:
@@ -2269,7 +2371,7 @@ echo "$ac_t""$CPP" 1>&6
# Extract the first word of "ranlib", so it can be a program name with args.
set dummy ranlib; ac_word=$2
echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
echo "configure:2273: checking for $ac_word" >&5
echo "configure:2375: checking for $ac_word" >&5
if eval "test \"`echo '$''{'ac_cv_prog_RANLIB'+set}'`\" = set"; then
echo $ac_n "(cached) $ac_c" 1>&6
else
@@ -2301,7 +2403,7 @@ do
# Extract the first word of "$ac_prog", so it can be a program name with args.
set dummy $ac_prog; ac_word=$2
echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
echo "configure:2305: checking for $ac_word" >&5
echo "configure:2407: checking for $ac_word" >&5
if eval "test \"`echo '$''{'ac_cv_path_AS'+set}'`\" = set"; then
echo $ac_n "(cached) $ac_c" 1>&6
else
@@ -2342,7 +2444,7 @@ do
# Extract the first word of "$ac_prog", so it can be a program name with args.
set dummy $ac_prog; ac_word=$2
echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
echo "configure:2346: checking for $ac_word" >&5
echo "configure:2448: checking for $ac_word" >&5
if eval "test \"`echo '$''{'ac_cv_path_AR'+set}'`\" = set"; then
echo $ac_n "(cached) $ac_c" 1>&6
else
@@ -2383,7 +2485,7 @@ do
# Extract the first word of "$ac_prog", so it can be a program name with args.
set dummy $ac_prog; ac_word=$2
echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
echo "configure:2387: checking for $ac_word" >&5
echo "configure:2489: checking for $ac_word" >&5
if eval "test \"`echo '$''{'ac_cv_path_LD'+set}'`\" = set"; then
echo $ac_n "(cached) $ac_c" 1>&6
else
@@ -2424,7 +2526,7 @@ do
# Extract the first word of "$ac_prog", so it can be a program name with args.
set dummy $ac_prog; ac_word=$2
echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
echo "configure:2428: checking for $ac_word" >&5
echo "configure:2530: checking for $ac_word" >&5
if eval "test \"`echo '$''{'ac_cv_path_STRIP'+set}'`\" = set"; then
echo $ac_n "(cached) $ac_c" 1>&6
else
@@ -2465,7 +2567,7 @@ do
# Extract the first word of "$ac_prog", so it can be a program name with args.
set dummy $ac_prog; ac_word=$2
echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
echo "configure:2469: checking for $ac_word" >&5
echo "configure:2571: checking for $ac_word" >&5
if eval "test \"`echo '$''{'ac_cv_path_WINDRES'+set}'`\" = set"; then
echo $ac_n "(cached) $ac_c" 1>&6
else
@@ -2527,7 +2629,7 @@ else
fi
echo $ac_n "checking for gcc -pipe support""... $ac_c" 1>&6
echo "configure:2531: checking for gcc -pipe support" >&5
echo "configure:2633: checking for gcc -pipe support" >&5
if test -n "$GNU_CC" && test -n "$GNU_CXX" && test -n "$GNU_AS"; then
echo '#include <stdio.h>' > dummy-hello.c
echo 'int main() { printf("Hello World\n"); return 0; }' >> dummy-hello.c
@@ -2542,14 +2644,14 @@ if test -n "$GNU_CC" && test -n "$GNU_CXX" && test -n "$GNU_AS"; then
_SAVE_CFLAGS=$CFLAGS
CFLAGS="$CFLAGS -pipe"
cat > conftest.$ac_ext <<EOF
#line 2546 "configure"
#line 2648 "configure"
#include "confdefs.h"
#include <stdio.h>
int main() {
printf("Hello World\n");
; return 0; }
EOF
if { (eval echo configure:2553: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
if { (eval echo configure:2655: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
rm -rf conftest*
_res_gcc_pipe="yes"
else
@@ -2574,6 +2676,63 @@ else
echo "$ac_t""no" 1>&6
fi
if test "$GNU_CC"; then
echo $ac_n "checking for visibility(hidden) attribute""... $ac_c" 1>&6
echo "configure:2682: checking for visibility(hidden) attribute" >&5
if eval "test \"`echo '$''{'ac_cv_visibility_hidden'+set}'`\" = set"; then
echo $ac_n "(cached) $ac_c" 1>&6
else
cat > conftest.c <<EOF
int foo __attribute__ ((visibility ("hidden"))) = 1;
EOF
ac_cv_visibility_attribute=no
if ${CC-cc} -Werror -S conftest.c -o conftest.s >/dev/null 2>&1; then
if grep '\.hidden.*foo' conftest.s >/dev/null; then
ac_cv_visibility_hidden=yes
fi
fi
rm -f conftest.cs
fi
echo "$ac_t""$ac_cv_visibility_hidden" 1>&6
if test $ac_cv_visibility_hidden = yes; then
cat >> confdefs.h <<\EOF
#define HAVE_VISIBILITY_HIDDEN_ATTRIBUTE 1
EOF
echo $ac_n "checking for visibility pragma support""... $ac_c" 1>&6
echo "configure:2706: checking for visibility pragma support" >&5
if eval "test \"`echo '$''{'ac_cv_visibility_pragma'+set}'`\" = set"; then
echo $ac_n "(cached) $ac_c" 1>&6
else
cat > conftest.c <<EOF
#pragma GCC visibility push(hidden)
int foo_hidden = 1;
#pragma GCC visibility push(default)
int foo_default = 1;
EOF
ac_cv_visibility_pragma=no
if ${CC-cc} -Werror -S conftest.c -o conftest.s >/dev/null 2>&1; then
if grep '\.hidden.*foo_hidden' conftest.s >/dev/null && ! grep '\.hidden.*foo_default' conftest.s > /dev/null ; then
ac_cv_visibility_pragma=yes
fi
fi
rm -f conftest.cs
fi
echo "$ac_t""$ac_cv_visibility_pragma" 1>&6
if test $ac_cv_visibility_pragma = yes; then
cat >> confdefs.h <<\EOF
#define HAVE_VISIBILITY_PRAGMA 1
EOF
VISIBILITY_FLAGS='-I$(dist_includedir)/system_wrappers -include $(topsrcdir)/config/gcc_hidden.h'
WRAP_SYSTEM_INCLUDES=1
fi
fi
fi # GNU_CC
fi # SKIP_COMPILER_CHECKS
if test -z "$SKIP_PATH_CHECKS"; then
@@ -2582,7 +2741,7 @@ do
# Extract the first word of "$ac_prog", so it can be a program name with args.
set dummy $ac_prog; ac_word=$2
echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
echo "configure:2586: checking for $ac_word" >&5
echo "configure:2745: checking for $ac_word" >&5
if eval "test \"`echo '$''{'ac_cv_path_PERL'+set}'`\" = set"; then
echo $ac_n "(cached) $ac_c" 1>&6
else
@@ -2827,17 +2986,17 @@ EOF
DSO_LDOPTS='-brtl -bnortllib -bM:SRE -bnoentry -bexpall -blibpath:/usr/lib:/lib'
ac_safe=`echo "sys/atomic_op.h" | sed 'y%./+-%__p_%'`
echo $ac_n "checking for sys/atomic_op.h""... $ac_c" 1>&6
echo "configure:2831: checking for sys/atomic_op.h" >&5
echo "configure:2990: checking for sys/atomic_op.h" >&5
if eval "test \"`echo '$''{'ac_cv_header_$ac_safe'+set}'`\" = set"; then
echo $ac_n "(cached) $ac_c" 1>&6
else
cat > conftest.$ac_ext <<EOF
#line 2836 "configure"
#line 2995 "configure"
#include "confdefs.h"
#include <sys/atomic_op.h>
EOF
ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
{ (eval echo configure:2841: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
{ (eval echo configure:3000: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
ac_err=`grep -v '^ *+' conftest.out | grep -v "^conftest.${ac_ext}\$"`
if test -z "$ac_err"; then
rm -rf conftest*
@@ -2994,7 +3153,7 @@ EOF
_DEBUG_FLAGS='-gdwarf-2 -O0'
MKSHLIB='$(CCC) $(DSO_LDOPTS) -o $@'
echo $ac_n "checking for gethostbyaddr in -lbind""... $ac_c" 1>&6
echo "configure:2998: checking for gethostbyaddr in -lbind" >&5
echo "configure:3157: checking for gethostbyaddr in -lbind" >&5
ac_lib_var=`echo bind'_'gethostbyaddr | sed 'y%./+-%__p_%'`
if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
echo $ac_n "(cached) $ac_c" 1>&6
@@ -3002,7 +3161,7 @@ else
ac_save_LIBS="$LIBS"
LIBS="-lbind $LIBS"
cat > conftest.$ac_ext <<EOF
#line 3006 "configure"
#line 3165 "configure"
#include "confdefs.h"
/* Override any gcc2 internal prototype to avoid an error. */
/* We use char because int might match the return type of a gcc2
@@ -3013,7 +3172,7 @@ int main() {
gethostbyaddr()
; return 0; }
EOF
if { (eval echo configure:3017: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
if { (eval echo configure:3176: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
rm -rf conftest*
eval "ac_cv_lib_$ac_lib_var=yes"
else
@@ -4216,17 +4375,17 @@ EOF
_OPTIMIZE_FLAGS="$_OPTIMIZE_FLAGS -Olimit 4000"
ac_safe=`echo "machine/builtins.h" | sed 'y%./+-%__p_%'`
echo $ac_n "checking for machine/builtins.h""... $ac_c" 1>&6
echo "configure:4220: checking for machine/builtins.h" >&5
echo "configure:4379: checking for machine/builtins.h" >&5
if eval "test \"`echo '$''{'ac_cv_header_$ac_safe'+set}'`\" = set"; then
echo $ac_n "(cached) $ac_c" 1>&6
else
cat > conftest.$ac_ext <<EOF
#line 4225 "configure"
#line 4384 "configure"
#include "confdefs.h"
#include <machine/builtins.h>
EOF
ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
{ (eval echo configure:4230: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
{ (eval echo configure:4389: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
ac_err=`grep -v '^ *+' conftest.out | grep -v "^conftest.${ac_ext}\$"`
if test -z "$ac_err"; then
rm -rf conftest*
@@ -4768,7 +4927,7 @@ case $target in
;;
*)
echo $ac_n "checking for dlopen in -ldl""... $ac_c" 1>&6
echo "configure:4772: checking for dlopen in -ldl" >&5
echo "configure:4931: checking for dlopen in -ldl" >&5
ac_lib_var=`echo dl'_'dlopen | sed 'y%./+-%__p_%'`
if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
echo $ac_n "(cached) $ac_c" 1>&6
@@ -4776,7 +4935,7 @@ else
ac_save_LIBS="$LIBS"
LIBS="-ldl $LIBS"
cat > conftest.$ac_ext <<EOF
#line 4780 "configure"
#line 4939 "configure"
#include "confdefs.h"
/* Override any gcc2 internal prototype to avoid an error. */
/* We use char because int might match the return type of a gcc2
@@ -4787,7 +4946,7 @@ int main() {
dlopen()
; return 0; }
EOF
if { (eval echo configure:4791: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
if { (eval echo configure:4950: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
rm -rf conftest*
eval "ac_cv_lib_$ac_lib_var=yes"
else
@@ -4804,17 +4963,17 @@ if eval "test \"`echo '$ac_cv_lib_'$ac_lib_var`\" = yes"; then
echo "$ac_t""yes" 1>&6
ac_safe=`echo "dlfcn.h" | sed 'y%./+-%__p_%'`
echo $ac_n "checking for dlfcn.h""... $ac_c" 1>&6
echo "configure:4808: checking for dlfcn.h" >&5
echo "configure:4967: checking for dlfcn.h" >&5
if eval "test \"`echo '$''{'ac_cv_header_$ac_safe'+set}'`\" = set"; then
echo $ac_n "(cached) $ac_c" 1>&6
else
cat > conftest.$ac_ext <<EOF
#line 4813 "configure"
#line 4972 "configure"
#include "confdefs.h"
#include <dlfcn.h>
EOF
ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
{ (eval echo configure:4818: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
{ (eval echo configure:4977: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
ac_err=`grep -v '^ *+' conftest.out | grep -v "^conftest.${ac_ext}\$"`
if test -z "$ac_err"; then
rm -rf conftest*
@@ -4847,13 +5006,13 @@ esac
if test $ac_cv_prog_gcc = yes; then
echo $ac_n "checking whether ${CC-cc} needs -traditional""... $ac_c" 1>&6
echo "configure:4851: checking whether ${CC-cc} needs -traditional" >&5
echo "configure:5010: checking whether ${CC-cc} needs -traditional" >&5
if eval "test \"`echo '$''{'ac_cv_prog_gcc_traditional'+set}'`\" = set"; then
echo $ac_n "(cached) $ac_c" 1>&6
else
ac_pattern="Autoconf.*'x'"
cat > conftest.$ac_ext <<EOF
#line 4857 "configure"
#line 5016 "configure"
#include "confdefs.h"
#include <sgtty.h>
Autoconf TIOCGETP
@@ -4871,7 +5030,7 @@ rm -f conftest*
if test $ac_cv_prog_gcc_traditional = no; then
cat > conftest.$ac_ext <<EOF
#line 4875 "configure"
#line 5034 "configure"
#include "confdefs.h"
#include <termio.h>
Autoconf TCGETA
@@ -4895,12 +5054,12 @@ fi
for ac_func in lchown strerror
do
echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
echo "configure:4899: checking for $ac_func" >&5
echo "configure:5058: checking for $ac_func" >&5
if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
echo $ac_n "(cached) $ac_c" 1>&6
else
cat > conftest.$ac_ext <<EOF
#line 4904 "configure"
#line 5063 "configure"
#include "confdefs.h"
/* System header to define __stub macros and hopefully few prototypes,
which can conflict with char $ac_func(); below. */
@@ -4923,7 +5082,7 @@ $ac_func();
; return 0; }
EOF
if { (eval echo configure:4927: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
if { (eval echo configure:5086: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
rm -rf conftest*
eval "ac_cv_func_$ac_func=yes"
else
@@ -4964,7 +5123,7 @@ hpux*)
if test -z "$GNU_CC"; then
echo $ac_n "checking for +Olit support""... $ac_c" 1>&6
echo "configure:4968: checking for +Olit support" >&5
echo "configure:5127: checking for +Olit support" >&5
if eval "test \"`echo '$''{'ac_cv_hpux_usable_olit_option'+set}'`\" = set"; then
echo $ac_n "(cached) $ac_c" 1>&6
else
@@ -4998,7 +5157,7 @@ esac
echo $ac_n "checking for pthread_create in -lpthreads""... $ac_c" 1>&6
echo "configure:5002: checking for pthread_create in -lpthreads" >&5
echo "configure:5161: checking for pthread_create in -lpthreads" >&5
echo "
#include <pthread.h>
void *foo(void *v) { return v; }
@@ -5020,7 +5179,7 @@ echo "
echo "$ac_t""no" 1>&6
echo $ac_n "checking for pthread_create in -lpthread""... $ac_c" 1>&6
echo "configure:5024: checking for pthread_create in -lpthread" >&5
echo "configure:5183: checking for pthread_create in -lpthread" >&5
echo "
#include <pthread.h>
void *foo(void *v) { return v; }
@@ -5042,7 +5201,7 @@ echo "
echo "$ac_t""no" 1>&6
echo $ac_n "checking for pthread_create in -lc_r""... $ac_c" 1>&6
echo "configure:5046: checking for pthread_create in -lc_r" >&5
echo "configure:5205: checking for pthread_create in -lc_r" >&5
echo "
#include <pthread.h>
void *foo(void *v) { return v; }
@@ -5064,7 +5223,7 @@ echo "
echo "$ac_t""no" 1>&6
echo $ac_n "checking for pthread_create in -lc""... $ac_c" 1>&6
echo "configure:5068: checking for pthread_create in -lc" >&5
echo "configure:5227: checking for pthread_create in -lc" >&5
echo "
#include <pthread.h>
void *foo(void *v) { return v; }
@@ -5216,7 +5375,7 @@ if test -n "$USE_PTHREADS"; then
rm -f conftest*
ac_cv_have_dash_pthread=no
echo $ac_n "checking whether ${CC-cc} accepts -pthread""... $ac_c" 1>&6
echo "configure:5220: checking whether ${CC-cc} accepts -pthread" >&5
echo "configure:5379: checking whether ${CC-cc} accepts -pthread" >&5
echo 'int main() { return 0; }' | cat > conftest.c
${CC-cc} -pthread -o conftest conftest.c > conftest.out 2>&1
if test $? -eq 0; then
@@ -5239,7 +5398,7 @@ echo "configure:5220: checking whether ${CC-cc} accepts -pthread" >&5
ac_cv_have_dash_pthreads=no
if test "$ac_cv_have_dash_pthread" = "no"; then
echo $ac_n "checking whether ${CC-cc} accepts -pthreads""... $ac_c" 1>&6
echo "configure:5243: checking whether ${CC-cc} accepts -pthreads" >&5
echo "configure:5402: checking whether ${CC-cc} accepts -pthreads" >&5
echo 'int main() { return 0; }' | cat > conftest.c
${CC-cc} -pthreads -o conftest conftest.c > conftest.out 2>&1
if test $? -eq 0; then
@@ -5644,6 +5803,8 @@ esac
@@ -5762,15 +5923,34 @@ trap 'rm -f $CONFIG_STATUS conftest*; exit 1' 1 2 15
# Transform confdefs.h into DEFS.
# Protect against shell expansion while executing Makefile rules.
# Protect against Makefile macro expansion.
cat > conftest.defs <<\EOF
s%#define \([A-Za-z_][A-Za-z0-9_]*\) *\(.*\)%-D\1=\2%g
s%[ `~#$^&*(){}\\|;'"<>?]%\\&%g
s%\[%\\&%g
s%\]%\\&%g
s%\$%$$%g
EOF
DEFS=`sed -f conftest.defs confdefs.h | tr '\012' ' ' | tr '\015' ' '`
rm -f conftest.defs
#
# If the first sed substitution is executed (which looks for macros that
# take arguments), then we branch to the quote section. Otherwise,
# look for a macro that doesn't take arguments.
cat >confdef2opt.sed <<\_ACEOF
t clear
: clear
s,^[ ]*#[ ]*define[ ][ ]*\([^ (][^ (]*([^)]*)\)[ ]*\(.*\),-D\1=\2,g
t quote
s,^[ ]*#[ ]*define[ ][ ]*\([^ ][^ ]*\)[ ]*\(.*\),-D\1=\2,g
t quote
d
: quote
s,[ `~#$^&*(){}\\|;'"<>?],\\&,g
s,\[,\\&,g
s,\],\\&,g
s,\$,$$,g
p
_ACEOF
# We use echo to avoid assuming a particular line-breaking character.
# The extra dot is to prevent the shell from consuming trailing
# line-breaks from the sub-command output. A line-break within
# single-quotes doesn't work because, if this script is created in a
# platform that uses two characters for line-breaks (e.g., DOS), tr
# would break.
ac_LF_and_DOT=`echo; echo .`
DEFS=`sed -n -f confdef2opt.sed confdefs.h | tr "$ac_LF_and_DOT" ' .'`
rm -f confdef2opt.sed
# Without the "./", some shells look in PATH for config.status.
@@ -5936,6 +6116,8 @@ s%@DLLFLAGS@%$DLLFLAGS%g
s%@EXEFLAGS@%$EXEFLAGS%g
s%@OS_DLLFLAGS@%$OS_DLLFLAGS%g
s%@CYGWIN_WRAPPER@%$CYGWIN_WRAPPER%g
s%@VISIBILITY_FLAGS@%$VISIBILITY_FLAGS%g
s%@WRAP_SYSTEM_INCLUDES@%$WRAP_SYSTEM_INCLUDES%g
CEOF
EOF

47
mozilla/nsprpub/configure.in
View File

@@ -484,6 +484,51 @@ else
AC_MSG_RESULT([no])
fi
dnl Check for .hidden assembler directive and visibility attribute.
dnl Borrowed from glibc configure.in
dnl ===============================================================
dnl Check for .hidden assembler directive and visibility attribute.
dnl Borrowed from glibc configure.in
dnl ===============================================================
if test "$GNU_CC"; then
AC_CACHE_CHECK(for visibility(hidden) attribute,
ac_cv_visibility_hidden,
[cat > conftest.c <<EOF
int foo __attribute__ ((visibility ("hidden"))) = 1;
EOF
ac_cv_visibility_attribute=no
if ${CC-cc} -Werror -S conftest.c -o conftest.s >/dev/null 2>&1; then
if grep '\.hidden.*foo' conftest.s >/dev/null; then
ac_cv_visibility_hidden=yes
fi
fi
rm -f conftest.[cs]
])
if test $ac_cv_visibility_hidden = yes; then
AC_DEFINE(HAVE_VISIBILITY_HIDDEN_ATTRIBUTE)
AC_CACHE_CHECK(for visibility pragma support,
ac_cv_visibility_pragma,
[cat > conftest.c <<EOF
#pragma GCC visibility push(hidden)
int foo_hidden = 1;
#pragma GCC visibility push(default)
int foo_default = 1;
EOF
ac_cv_visibility_pragma=no
if ${CC-cc} -Werror -S conftest.c -o conftest.s >/dev/null 2>&1; then
if grep '\.hidden.*foo_hidden' conftest.s >/dev/null && ! grep '\.hidden.*foo_default' conftest.s > /dev/null ; then
ac_cv_visibility_pragma=yes
fi
fi
rm -f conftest.[cs]
])
if test $ac_cv_visibility_pragma = yes; then
AC_DEFINE(HAVE_VISIBILITY_PRAGMA)
VISIBILITY_FLAGS='-I$(dist_includedir)/system_wrappers -include $(topsrcdir)/config/gcc_hidden.h'
WRAP_SYSTEM_INCLUDES=1
fi
fi
fi # GNU_CC
fi # SKIP_COMPILER_CHECKS
dnl ========================================================
@@ -2508,6 +2553,8 @@ AC_SUBST(DLLFLAGS)
AC_SUBST(EXEFLAGS)
AC_SUBST(OS_DLLFLAGS)
AC_SUBST(CYGWIN_WRAPPER)
AC_SUBST(VISIBILITY_FLAGS)
AC_SUBST(WRAP_SYSTEM_INCLUDES)
dnl ========================================================
dnl Generate output files.

22
mozilla/nsprpub/pr/include/prtypes.h
View File

@@ -178,15 +178,21 @@
#else /* Unix */
#define PR_EXPORT(__type) extern __type
#define PR_EXPORT_DATA(__type) extern __type
#define PR_IMPORT(__type) extern __type
#define PR_IMPORT_DATA(__type) extern __type
#ifdef HAVE_VISIBILITY_PRAGMA
#define PR_VISIBILITY_DEFAULT __attribute__((visibility("default")))
#else
#define PR_VISIBILITY_DEFAULT
#endif
#define PR_EXTERN(__type) extern __type
#define PR_IMPLEMENT(__type) __type
#define PR_EXTERN_DATA(__type) extern __type
#define PR_IMPLEMENT_DATA(__type) __type
#define PR_EXPORT(__type) extern PR_VISIBILITY_DEFAULT __type
#define PR_EXPORT_DATA(__type) extern PR_VISIBILITY_DEFAULT __type
#define PR_IMPORT(__type) extern PR_VISIBILITY_DEFAULT __type
#define PR_IMPORT_DATA(__type) extern PR_VISIBILITY_DEFAULT __type
#define PR_EXTERN(__type) extern PR_VISIBILITY_DEFAULT __type
#define PR_IMPLEMENT(__type) PR_VISIBILITY_DEFAULT __type
#define PR_EXTERN_DATA(__type) extern PR_VISIBILITY_DEFAULT __type
#define PR_IMPLEMENT_DATA(__type) PR_VISIBILITY_DEFAULT __type
#define PR_CALLBACK
#define PR_CALLBACK_DECL
#define PR_STATIC_CALLBACK(__x) static __x

2
mozilla/nsprpub/pr/src/md/unix/uxproces.c
View File

@@ -49,7 +49,7 @@
#if defined(DARWIN)
#include <crt_externs.h>
#else
extern char **environ;
PR_IMPORT_DATA(char **) environ;
#endif
/*