Buildsystem: Add support for compiling with MinGW on Windows

Tested with:
- Windows 8 x64
- MySQL 5.5.30 win32
- OpenSSL 1.0.1c (32 bits)
- No PCH
- MinGW with GCC 4.7.0

TODO:
- Fix compile/link with PCH enabled
- Fix compile with WheatyExceptonionReport enabled (ignored for now)
- Fix compile of .rc files (ignored for now)
- Test with more platforms

1 files changed, 5 insertions, 5 deletions

diff --git a/dep/g3dlite/source/System.cpp b/dep/g3dlite/source/System.cpp
index f6b0e038f27..281104d39f1 100644
--- a/dep/g3dlite/source/System.cpp
+++ b/dep/g3dlite/source/System.cpp
@@ -564,7 +564,7 @@ void System::getStandardProcessorExtensions() {
 #endif
 }
 
-#if defined(G3D_WIN32) && !defined(G3D_64BIT) /* G3DFIX: Don't check if on 64-bit Windows platforms */
+#if defined(G3D_WIN32) && !defined(G3D_64BIT) && !defined(__MINGW32__) /* G3DFIX: Don't check if on 64-bit Windows platforms or using MinGW */
     #pragma message("Port System::memcpy SIMD to all platforms")
 /** Michael Herf's fast memcpy */
 void memcpyMMX(void* dst, const void* src, int nbytes) {
@@ -615,7 +615,7 @@ void memcpyMMX(void* dst, const void* src, int nbytes) {
 #endif
 
 void System::memcpy(void* dst, const void* src, size_t numBytes) {
-#if defined(G3D_WIN32) && !defined(G3D_64BIT) /* G3DFIX: Don't check if on 64-bit Windows platforms */
+#if defined(G3D_WIN32) && !defined(G3D_64BIT) && !defined(__MINGW32__) /* G3DFIX: Don't check if on 64-bit Windows platforms or using MinGW */
     memcpyMMX(dst, src, numBytes);
 #else
     ::memcpy(dst, src, numBytes);
@@ -625,7 +625,7 @@ void System::memcpy(void* dst, const void* src, size_t numBytes) {
 
 /** Michael Herf's fastest memset. n32 must be filled with the same
     character repeated. */
-#if defined(G3D_WIN32) && !defined(G3D_64BIT) /* G3DFIX: Don't check if on 64-bit Windows platforms */
+#if defined(G3D_WIN32) && !defined(G3D_64BIT) && !defined(__MINGW32__) /* G3DFIX: Don't check if on 64-bit Windows platforms or using MinGW */
     #pragma message("Port System::memfill SIMD to all platforms")
 
 // On x86 processors, use MMX
@@ -664,7 +664,7 @@ void memfill(void *dst, int n32, unsigned long i) {
 
 
 void System::memset(void* dst, uint8 value, size_t numBytes) {
-#if defined(G3D_WIN32) && !defined(G3D_64BIT) /* G3DFIX: Don't check if on 64-bit Windows platforms */
+#if defined(G3D_WIN32) && !defined(G3D_64BIT) && !defined(__MINGW32__) /* G3DFIX: Don't check if on 64-bit Windows platforms or using MinGW */
     uint32 v = value;
     v = v + (v << 8) + (v << 16) + (v << 24); 
     G3D::memfill(dst, v, numBytes);
@@ -1696,7 +1696,7 @@ std::string System::currentDateString() {
 
 // VC on Intel
 void System::cpuid(CPUIDFunction func, uint32& areg, uint32& breg, uint32& creg, uint32& dreg) {
-#if !defined(G3D_64BIT) /* G3DFIX: Don't check if on 64-bit platform */
+#if !defined(G3D_64BIT) && !defined(__MINGW32__) /* G3DFIX: Don't check if on 64-bit platforms or using MinGW */
     // Can't copy from assembler direct to a function argument (which is on the stack) in VC.
     uint32 a,b,c,d;