Apply patches from FreeBSD's Ports system.

Thanks to Jeremy Lea <reg@shale.csir.co.za> for the patch.
Bug #112987 r=cls a=asa

extensions/transformiix/source/base/Double.cpp

@@ -41,7 +41,7 @@
 #endif
 //A trick to handle IEEE floating point exceptions on FreeBSD - E.D.
 #ifdef __FreeBSD__
-#include <floatingpoint.h>
+#include <ieeefp.h>
 #endif
 #ifndef TX_EXE
 #include "prdtoa.h"
@@ -56,7 +56,11 @@
 
 //A trick to handle IEEE floating point exceptions on FreeBSD - E.D.
 #ifdef __FreeBSD__
+#ifdef __alpha__
+fp_except_t allmask = FP_X_INV|FP_X_OFL|FP_X_UFL|FP_X_DZ|FP_X_IMP;
+#else
 fp_except_t allmask = FP_X_INV|FP_X_OFL|FP_X_UFL|FP_X_DZ|FP_X_IMP|FP_X_DNML;
+#endif
 fp_except_t oldmask = fpsetmask(~allmask);
 #endif
 

xpfe/bootstrap/nsAppRunner.cpp

@@ -1048,7 +1048,7 @@ static nsresult VerifyInstallation(int argc, char **argv)
 
 #if defined(FREEBSD)
 // pick up fpsetmask prototype.
-#include <floatingpoint.h>
+#include <ieeefp.h>
 #endif
 
 // Note: nativeApp is an owning reference that this function has responsibility