--- Botan-2.18.1/src/build-data/os/mingw.txt.orig	2021-09-23 18:31:48.072000200 +0200
+++ Botan-2.18.1/src/build-data/os/mingw.txt	2021-09-23 18:33:01.963424400 +0200
@@ -8,6 +8,9 @@
 lib_dir lib
 doc_dir share/doc
 
+soname_pattern_base "{lib_prefix}{libname}.dll"
+shared_lib_symlinks no
+
 # see https://sourceforge.net/p/mingw-w64/bugs/755/
 use_stack_protector no
 
--- Botan-2.18.1/src/scripts/install.py.orig	2021-09-23 21:50:48.316660600 +0200
+++ Botan-2.18.1/src/scripts/install.py	2021-09-23 21:54:09.336719700 +0200
@@ -191,6 +191,13 @@
             soname_base = libname + '.dll'
             copy_executable(os.path.join(out_dir, soname_base),
                             prepend_destdir(os.path.join(bin_dir, soname_base)))
+        elif target_os == "mingw":
+            shared_lib_name = cfg['shared_lib_name']
+            copy_executable(os.path.join(out_dir, shared_lib_name),
+                            prepend_destdir(os.path.join(bin_dir, shared_lib_name)))
+            implib_name = shared_lib_name + '.a'
+            copy_executable(os.path.join(out_dir, implib_name),
+                            prepend_destdir(os.path.join(lib_dir, implib_name)))
         else:
             soname_patch = cfg['soname_patch']
             soname_abi = cfg['soname_abi']
--- Botan-2.18.1/src/build-data/cc/clang.txt.orig	2021-09-23 20:56:10.946000000 +0200
+++ Botan-2.18.1/src/build-data/cc/clang.txt	2021-09-23 21:24:40.636537000 +0200
@@ -37,6 +37,8 @@
 
 # The default works for GNU ld and several other Unix linkers
 default       -> "$(CXX) -shared -fPIC -Wl,-soname,{soname_abi}"
+
+mingw         -> "$(CXX) -shared -Wl,--out-implib,{shared_lib_name}.a"
 </so_link_commands>
 
 <binary_link_commands>
--- Botan-2.18.1/src/build-data/cc/gcc.txt.orig	2021-09-23 20:56:42.407808200 +0200
+++ Botan-2.18.1/src/build-data/cc/gcc.txt	2021-09-23 21:24:56.862519700 +0200
@@ -45,6 +45,8 @@
 # AIX and OpenBSD don't use sonames at all
 aix     -> "$(CXX) -shared -fPIC"
 openbsd -> "$(CXX) -shared -fPIC"
+
+mingw   -> "$(CXX) -shared -Wl,--out-implib,{shared_lib_name}.a"
 </so_link_commands>
 
 <binary_link_commands>
--- Botan-2.18.1/src/python/botan2.py.orig	2021-09-23 22:05:38.880263000 +0200
+++ Botan-2.18.1/src/python/botan2.py	2021-09-23 22:05:45.327515900 +0200
@@ -56,6 +56,7 @@
 
     if platform in ['win32', 'cygwin', 'msys']:
         possible_dll_names.append('botan.dll')
+        possible_dll_names.append('libbotan-2.dll')
     elif platform in ['darwin', 'macos']:
         possible_dll_names.append('libbotan-2.dylib')
     else: