Index: otp/erts/emulator/sys/win32/sys_float.c
===================================================================
--- otp.orig/erts/emulator/sys/win32/sys_float.c	2012-12-17 11:16:44.738149200 +0200
+++ otp/erts/emulator/sys/win32/sys_float.c	2012-12-17 11:26:58.456899200 +0200
@@ -31,10 +31,19 @@
 
 static void fpe_exception(int sig);
 
+#if defined(__MINGW_GCC_VERSION)
+int erts_matherr(struct _exception *exc);
 void
 erts_sys_init_float(void)
 {
+   __mingw_setusermatherr(erts_matherr);
 }
+#else
+void
+erts_sys_init_float(void)
+{
+}
+#endif
 void erts_thread_init_float(void)
 {
 }
@@ -133,8 +142,13 @@
     return s-buf; /* i.e strlen(buf) */
 }
 
+#if defined(__MINGW_GCC_VERSION)
+int
+erts_matherr(struct _exception *exc)
+#else
 int
 matherr(struct _exception *exc)
+#endif
 {
     erl_fp_exception = 1;
     DEBUGF(("FP exception (matherr) (0x%x) (%d)\n", exc->type, erl_fp_exception));
Index: otp/lib/wx/c_src/Makefile.in
===================================================================
--- otp.orig/lib/wx/c_src/Makefile.in	2012-12-17 11:19:08.628774200 +0200
+++ otp/lib/wx/c_src/Makefile.in	2012-12-17 11:26:58.488149200 +0200
@@ -110,7 +110,7 @@
 
 CC_O		= $(CC) -c $(CFLAGS) $(WX_CFLAGS) $(COMMON_CFLAGS)
 OBJC_CC_O	= $(OBJC_CC) -c $(CFLAGS) $(OBJC_CFLAGS) $(WX_CFLAGS) $(COMMON_CFLAGS)
-CPP_O		= $(CPP) -c $(CXX_FLAGS) $(WX_CXX_FLAGS)  $(COMMON_CFLAGS) 
+CPP_O		= $(CPP) -c -fpermissive $(CXX_FLAGS) $(WX_CXX_FLAGS)  $(COMMON_CFLAGS) 
 
 ifeq ($(SYS_TYPE),win32)
 GL_LIBS = -lopengl32 -lglu32