X-Git-Url: http://git.shadowcat.co.uk/gitweb/gitweb.cgi?a=blobdiff_plain;f=hints%2Fdec_osf.sh;h=fd0100305b4072407cefc81eb01eb15aaba30d86;hb=55ec0dff636c2a8ee5225314d7d46f928ab7f6da;hp=4c1820064ef299217943d6560441fd117617b564;hpb=23f418823db70e44edaef1d697ffc2dfd6ab771b;p=p5sagit%2Fp5-mst-13.2.git

diff --git a/hints/dec_osf.sh b/hints/dec_osf.sh
index 4c18200..fd01003 100644
--- a/hints/dec_osf.sh
+++ b/hints/dec_osf.sh
@@ -290,7 +290,7 @@ esac
 
 # we want dynamic fp rounding mode, and we want ieee exception semantics
 case "$isgcc" in
-gcc)	;;
+gcc)	ccflags="$ccflags -mfp-rounding-mode=d -mieee" ;;
 *)	case "$_DEC_cc_style" in
 	new)	ccflags="$ccflags -fprm d -ieee"	;;
 	esac
@@ -518,6 +518,27 @@ case "$LD_LIBRARY_PATH" in
 * ) export LD_LIBRARY_PATH ;;
 esac
 
+# Enforce strict data.
+case "$isgcc" in
+gcc)   ;;
+*)     # -trapuv poisons uninitialized stack with
+       #  0xfff58005fff58005 which is as a pointer a segmentation fault and
+       #  as a floating point a signaling NaN.  As integers/longs that causes
+       #  no traps but at least it is not zero.
+       # -readonly_strings moves string constants into read-only section
+       #  which hopefully means that modifying them leads into segmentation
+       #  faults.
+       #
+       for i in -trapuv -readonly_strings
+       do
+               case "$ccflags" in
+               *$i*) ;;
+               *) ccflags="$ccflags $i" ;;
+               esac
+       done
+       ;;
+esac
+
 #
 # Unset temporary variables no more needed.
 #