From 3d08a9e0ec317b946454159d51ac1dea35c73c8a Mon Sep 17 00:00:00 2001
From: stevenknight <stevenknight@fdb21ef1-2011-0410-befe-b5e4ea1792b1>
Date: Wed, 15 Jan 2003 01:28:31 +0000
Subject: [PATCH] Add .def file support to the mingw tool.  (Anthony Roach)

git-svn-id: http://scons.tigris.org/svn/scons/trunk@548 fdb21ef1-2011-0410-befe-b5e4ea1792b1
---
 src/engine/SCons/Tool/mingw.py | 16 ++++++++++++++++
 test/mingw.py                  | 14 +++++++++++++-
 2 files changed, 29 insertions(+), 1 deletion(-)

diff --git a/src/engine/SCons/Tool/mingw.py b/src/engine/SCons/Tool/mingw.py
index 7221cd68..d0f1eafb 100644
--- a/src/engine/SCons/Tool/mingw.py
+++ b/src/engine/SCons/Tool/mingw.py
@@ -57,6 +57,9 @@ def shlib_generator(target, source, env, for_signature):
     implib = env.FindIxes(target, 'LIBPREFIX', 'LIBSUFFIX')
     if implib: cmd.append('-Wl,--out-implib,'+str(implib))
 
+    def_target = env.FindIxes(target, 'WIN32DEFPREFIX', 'WIN32DEFSUFFIX')
+    if def_target: cmd.append('-Wl,--output-def,'+str(def_target))
+
     return [cmd]
 
 def shlib_emitter(target, source, env):
@@ -73,6 +76,17 @@ def shlib_emitter(target, source, env):
         target.append(env.ReplaceIxes(dll,  
                                       'SHLIBPREFIX', 'SHLIBSUFFIX',
                                       'LIBPREFIX', 'LIBSUFFIX'))
+
+    # Append a def file target if there isn't already a def file target
+    # or a def file source. There is no option to disable def file
+    # target emitting, because I can't figure out why someone would ever
+    # want to turn it off.
+    def_source = env.FindIxes(source, 'WIN32DEFPREFIX', 'WIN32DEFSUFFIX')
+    def_target = env.FindIxes(target, 'WIN32DEFPREFIX', 'WIN32DEFSUFFIX')
+    if not def_source and not def_target:
+        target.append(env.ReplaceIxes(dll,  
+                                      'SHLIBPREFIX', 'SHLIBSUFFIX',
+                                      'WIN32DEFPREFIX', 'WIN32DEFSUFFIX'))
     
     return (target, source)
                          
@@ -112,6 +126,8 @@ def generate(env, platform):
     env['SHLIBEMITTER']= shlib_emitter
     env['LINK'] = 'g++'
     env['AS'] = 'as'
+    env['WIN32DEFPREFIX']        = ''
+    env['WIN32DEFSUFFIX']        = '.def'
 
     env['RC'] = 'windres'
     env['RCFLAGS'] = ''
diff --git a/test/mingw.py b/test/mingw.py
index 5d6e2c11..1ea4704b 100644
--- a/test/mingw.py
+++ b/test/mingw.py
@@ -64,7 +64,7 @@ env=Environment(tools=['mingw'])
 assert env['CC'] == 'gcc'
 env.StaticLibrary('static', 'static.cpp')
 env.SharedLibrary('shared', 'shared.cpp')
-env.SharedLibrary('cshared', 'cshared.c')
+env.SharedLibrary('cshared', ['cshared.c', 'cshared.def'])
 env.Program('test', ['test.cpp', env.RES('resource.rc', CPPPATH=['header'])], LIBS=['static', 'shared', 'cshared'], LIBPATH=['.'])
 """)
 
@@ -133,6 +133,13 @@ void cshared_func(void)
 }
 ''')
 
+test.write('cshared.def', '''
+EXPORTS
+cshared_func
+''')
+
+
+
 test.write('header/resource2.h', '''
 #define RESOURCE_RC "resource.rc"
 ''')
@@ -141,6 +148,11 @@ test.write('header/resource2.h', '''
 # we'd like for this test to pass once this bug is fixed, so match anything at all
 # that comes out of stderr:
 test.run(arguments='test.exe', stderr='.*')
+# ensure the source def for cshared.def got used, and there wasn't a target def for chshared.dll:
+test.fail_test(string.find(test.stdout(), 'cshared.def') == -1)
+test.fail_test(string.find(test.stdout(), '-Wl,--output-def,cshared.def') != -1)
+# ensure the target def got generated for the shared.dll:
+test.fail_test(not os.path.exists(test.workpath('shared.def')))
 test.run(program=test.workpath('test.exe'), stdout='test.cpp\nshared.cpp\nstatic.cpp\ncshared.c\n2001 resource.rc\n')
 
 # ensure that modifying the header causes the resource to be rebuilt:
-- 
2.26.2