hints/dec_osf.sh (Re: blead@26701 compilation warning from tru64 cc)

Message-ID: <43C0DD9A.9080809@gmail.com>

p4raw-id: //depot/perl@26707

diff --git a/hints/dec_osf.sh b/hints/dec_osf.sh
index fbdf624..2a2bf61 100644 (file)
--- a/hints/dec_osf.sh
+++ b/hints/dec_osf.sh
@@ -126,17 +126,23 @@ EOF
        # If it is, we can use it for being nauseatingly C99 ANSI --
        # but even then the lddlflags needs to stay -std1.
        # If it is not, we must use -std1 for both flags.
+       #
                case "`cc -c99 try.c 2>&1`" in
-       *"-c99: Unknown flag"*)         _ccflags_strict_ansi="-std1"  ;;
+       *"-c99: Unknown flag"*)
+               _ccflags_strict_ansi="-std1"
+               ;;
        *)      # However, use the -c99 only if compiling for
                # -DPERL_MEM_LOG, where the C99 feature __func__
                # is useful to have.  Otherwise use the good old
                # -std1 so that we stay C89 strict, which the goal
                # of the Perl C code base (no //, no code between
-               # declarations, etc).
+               # declarations, etc).  Moreover, the Tru64 cc is
+               # not fully C99, and most probably never will be.
+               #
                # The -DPERL_MEM_LOG can be either in ccflags
                # (if using an old config.sh) or in the command line
                # (which has been stowed away in UU/cmdline.opt).
+               #
                case "$ccflags `cat UU/cmdline.opt`" in
                *-DPERL_MEM_LOG*)       _ccflags_strict_ansi="-c99"  ;;
                *)                      _ccflags_strict_ansi="-std1" ;;
@@ -144,6 +150,9 @@ EOF
                ;;
        esac
        _lddlflags_strict_ansi="-std1"
+       # -no_ansi_alias because Perl code is not that strict
+       # (also gcc uses by default -fno-strict-aliasing).
+       _ccflags_strict_ansi="$_ccflags_strict_ansi -no_ansi_alias"
        # Cleanup.
        rm -f try.c try.o
        ;;