workaround for lame stack packing on i386 ...

	- build gcc with -Os (crtfastmath.o to be specific)
	- crtfastmath.o is installed into gcc libdir
	- run gcc with -ffast-math and get crtfastmath.o linked in
	- resulting compiled app segfaults due to init code in
	  crtfastmath.o that has mis-aligned structure on stack

http://bugs.gentoo.org/147020
http://gcc.gnu.org/PR28621

this is supposed to be fixed in current 4.1 branch, but i'm unable to get
the fix to work so until i can figure out what i'm doing wrong, we'll use
this workaround for now.

--- gcc-4.1.1/gcc/config/i386/crtfastmath.c
+++ gcc-4.1.1/gcc/config/i386/crtfastmath.c
@@ -37,6 +37,23 @@
 #define FXSAVE	(1 << 24)
 #define SSE	(1 << 25)
 
+struct
+{
+	unsigned short int cwd;
+	unsigned short int swd;
+	unsigned short int twd;
+	unsigned short int fop;
+	long int fip;
+	long int fcs;
+	long int foo;
+	long int fos;
+	long int mxcsr;
+	long int mxcsr_mask;
+	long int st_space[32];
+	long int xmm_space[32];
+	long int padding[56];
+} __attribute__ ((aligned (16))) fxsave;
+
 static void __attribute__((constructor))
 set_fast_math (void)
 {
@@ -75,22 +92,6 @@
       if (edx & FXSAVE)
 	{
 	  /* Check if DAZ is available.  */
-	  struct
-	    {
-	      unsigned short int cwd;
-	      unsigned short int swd;
-	      unsigned short int twd;
-	      unsigned short int fop;
-	      long int fip;
-	      long int fcs;
-	      long int foo;
-	      long int fos;
-	      long int mxcsr;
-	      long int mxcsr_mask;
-	      long int st_space[32];
-	      long int xmm_space[32];
-	      long int padding[56];
-	    } __attribute__ ((aligned (16))) fxsave;
 
 	  __builtin_memset (&fxsave, 0, sizeof (fxsave));