SYN SYN

[p5sagit/p5-mst-13.2.git] / hints / dec_osf.sh

diff --git a/hints/dec_osf.sh b/hints/dec_osf.sh
index c149ae0..07b80ea 100644 (file)
--- a/hints/dec_osf.sh
+++ b/hints/dec_osf.sh
@@ -65,10 +65,43 @@ cc=${cc:-cc}
        # reset
        _DEC_cc_style=
 case "`$cc -v 2>&1 | grep cc`" in
-*gcc*) ;; # pass
+*gcc*) _gcc_version=`$cc --version 2>&1 | tr . ' '`
+       set $_gcc_version
+       if test "$1" -lt 2 -o \( "$1" -eq 2 -a \( "$2" -lt 95 -o \( "$2" -eq 95 -a "$3" -lt 2 \) \) \); then
+           cat >&4 <<EOF
+
+*** Your cc seems to be gcc and its version seems to be less than 2.95.2.
+*** This is not a good idea since old versions of gcc are known to produce
+*** buggy code when compiling Perl (and no doubt for other programs, too).
+***
+*** Therefore, I strongly suggest upgrading your gcc.  (Why don't you
+*** use the vendor cc is also a good question.  It comes with the operating
+*** system and produces good code.)
+
+Cannot continue, aborting.
+
+EOF
+           exit 1
+       fi
+       if test "$1" -eq 2 -a "$2" -eq 95 -a "$3" -le 2; then
+           cat >&4 <<EOF
+
+*** Note that as of gcc 2.95.2 (19991024) and Perl 5.6.0 (March 2000)
+*** if the said Perl is compiled with the said gcc the lib/sdbm test
+*** dumps core (meaning  that the SDBM_File is unusable).  As this core
+*** dump doesn't happen with the vendor cc, this is most probably
+*** a lingering bug in gcc.  Therefore unless you have a better gcc
+*** you are still better off using the vendor cc.
+
+Since you explicitly chose gcc, I assume that you know what are doing.
+
+EOF
+       fi
+        ;;
 *)     # compile something small: taint.c is fine for this.
+       ccversion=`cc -V | awk '/(Compaq|DEC) C/ {print $3}'`
        # the main point is the '-v' flag of 'cc'.
-               case "`cc -v -I. -c taint.c -o /tmp/taint$$.o 2>&1`" in
+               case "`cc -v -I. -c taint.c -o taint$$.o 2>&1`" in
        */gemc_cc*)     # we have the new DEC GEM CC
                        _DEC_cc_style=new
                        ;;
@@ -77,7 +110,7 @@ case "`$cc -v 2>&1 | grep cc`" in
                        ;;
        esac
        # cleanup
-       rm -f /tmp/taint$$.o
+       rm -f taint$$.o
        ;;
 esac