Update build systems to copy needed dlls from MinGW-w64, turn openmp on by default for MinGW.

CMakeLists.txt

@@ -148,7 +148,7 @@ mark_as_advanced(WITH_AUDASPACE)
 
 
 # (unix defaults to OpenMP On)
-if(UNIX AND NOT APPLE)
+if((UNIX AND NOT APPLE) OR (MINGW))
 	set(PLATFORM_DEFAULT ON)
 else()
 	set(PLATFORM_DEFAULT OFF)

SConstruct

@@ -769,8 +769,13 @@ if env['OURPLATFORM'] == 'win64-mingw':
     if env['WITH_BF_SDL']:
         dllsources.append('${LCGDIR}/sdl/lib/SDL.dll')
 	
+	if(env['WITH_BF_OPENMP'])
+		dllsources.append('${LCGDIR}/binaries/libgomp-1.dll')
+	
     dllsources.append('${LCGDIR}/thumbhandler/lib/BlendThumb64.dll')
-    dllsources.append('${LCGDIR}/binaries/pthreadGC2-w64.dll')
+    dllsources.append('${LCGDIR}/binaries/libgcc_s_sjlj-1.dll')
+	dllsources.append('${LCGDIR}/binaries/libwinpthread-1.dll')
+	dllsources.append('${LCGDIR}/binaries/libstdc++-6.dll)')
     dllsources.append('#source/icons/blender.exe.manifest')
 
     windlls = env.Install(dir=env['BF_INSTALLDIR'], source = dllsources)

build_files/scons/config/win64-mingw-config.py

@@ -169,8 +169,8 @@ BF_BOOST_LIBPATH = BF_BOOST + '/lib'
 WITH_BF_RAYOPTIMIZATION = True
 BF_RAYOPTIMIZATION_SSE_FLAGS = ['-mmmx', '-msse', '-msse2']
 
-#Produces errors while rendering with subsurf/multires,
-WITH_BF_OPENMP = False
+#May produce errors with unsupported MinGW-w64 builds
+WITH_BF_OPENMP = True
 
 ##
 CC = 'gcc'

source/creator/CMakeLists.txt

@@ -551,9 +551,20 @@ elseif(WIN32)
 			)
 		elseif(WITH_MINGW64)
 			install(
-				FILES ${LIBDIR}/binaries/pthreadGC2-w64.dll
+				FILES 
+					${LIBDIR}/binaries/libgcc_s_sjlj-1.dll
+					${LIBDIR}/binaries/libwinpthread-1.dll
+					${LIBDIR}/binaries/libstdc++-6.dll
 				DESTINATION ${TARGETDIR}
 			)
+			
+			if(WITH_OPENMP)
+				install(
+					FILES 
+					${LIBDIR}/binaries/libgomp-1.dll
+					DESTINATION ${TARGETDIR}
+				)
+			endif()
 		endif()
 	endif()