Attempt to fix the MinGW failed build due to linker runs out of mem.

Add -fno-keep-inline-dllexport compiler option when building using MinGW in order to reduce the object size and the link time (and thus hopefully reduce the linker memory consumption as well).

.travis.yml

@@ -29,7 +29,7 @@ env:
   matrix:
     - LINUX=1               URHO3D_64BIT=1 URHO3D_LIB_TYPE=STATIC SITE_UPDATE=1
     - LINUX=1               URHO3D_64BIT=1 URHO3D_LIB_TYPE=SHARED
-    - WINDOWS=1 ARCH=x86_64 URHO3D_64BIT=1 URHO3D_LIB_TYPE=STATIC NUMJOBS=2
+    - WINDOWS=1 ARCH=x86_64 URHO3D_64BIT=1 URHO3D_LIB_TYPE=STATIC
     - WINDOWS=1 ARCH=x86_64 URHO3D_64BIT=1 URHO3D_LIB_TYPE=SHARED
     - LINUX=1                              URHO3D_LIB_TYPE=STATIC
     - LINUX=1                              URHO3D_LIB_TYPE=SHARED

Source/CMake/Modules/Urho3D-CMake-common.cmake

@@ -281,8 +281,8 @@ else ()
         endif ()
         # MinGW-specific setup
         if (WIN32)
-            set (CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -static -static-libgcc")
-            set (CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -static -static-libstdc++ -static-libgcc")
+            set (CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -static -static-libgcc -fno-keep-inline-dllexport")
+            set (CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -static -static-libstdc++ -static-libgcc -fno-keep-inline-dllexport")
             set (CMAKE_SHARED_LINKER_FLAGS "${CMAKE_SHARED_LINKER_FLAGS} -static")
             # Additional compiler flags for Windows ports of GCC
             set (CMAKE_C_FLAGS_RELWITHDEBINFO "-O2 -g -DNDEBUG")

cmake_gcc.sh

@@ -47,7 +47,7 @@ GENERATOR="Unix Makefiles"
 OPT=
 [ $ANDROID_NDK ] && msg "Android build" && cmake -E make_directory android-Build && cmake -E chdir android-Build cmake $OPT -G $GENERATOR -DANDROID=1 -DCMAKE_TOOLCHAIN_FILE=$TOOLCHAINS/android.toolchain.cmake -DLIBRARY_OUTPUT_PATH_ROOT=. $@ $SOURCE && post_cmake android-Build
 [ $RASPI_TOOL ] && msg "Raspberry Pi build" && cmake -E make_directory raspi-Build && cmake -E chdir raspi-Build cmake $OPT -G $GENERATOR -DRASPI=1 -DCMAKE_TOOLCHAIN_FILE=$TOOLCHAINS/raspberrypi.toolchain.cmake $@ $SOURCE && post_cmake raspi-Build
-[ $MINGW_PREFIX ] && msg "MingW build" && cmake -E make_directory mingw-Build && cmake -E chdir mingw-Build cmake $OPT -G $GENERATOR -DCMAKE_TOOLCHAIN_FILE=$TOOLCHAINS/mingw.toolchain.cmake $@ $SOURCE && post_cmake mingw-Build
+[ $MINGW_PREFIX ] && msg "MinGW build" && cmake -E make_directory mingw-Build && cmake -E chdir mingw-Build cmake $OPT -G $GENERATOR -DCMAKE_TOOLCHAIN_FILE=$TOOLCHAINS/mingw.toolchain.cmake $@ $SOURCE && post_cmake mingw-Build
 [ ! $SKIP_NATIVE ] && msg "Native build" && cmake -E make_directory Build && cmake -E chdir Build cmake $OPT -G $GENERATOR $PLATFORM $@ $SOURCE && post_cmake Build
 unset IFS