Make the "uninit variable" warning to say "concat or string"

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

diff --git a/hints/dec_osf.sh b/hints/dec_osf.sh
index 65c6cb3..db7b869 100644 (file)
--- a/hints/dec_osf.sh
+++ b/hints/dec_osf.sh
@@ -58,15 +58,41 @@
 # and it is called GEM. Many of the options we are going to use depend
 # on the compiler style.
 
+cc=${cc:-cc}
+
 # do NOT, I repeat, *NOT* take away the leading tabs
 # Configure Black Magic (TM)
        # reset
        _DEC_cc_style=
-case "$cc -v 2>&1 | grep cc" in
-*gcc*) ;; # pass
+case "`$cc -v 2>&1 | grep cc`" in
+*gcc*) _gcc_version=`$cc -v 2>&1 | grep "gcc version" | sed 's%^gcc version \([0-9]*\)\.\([0-9]*\) .*%\1 \2%'`
+       set $_gcc_version
+       if test "$1" -lt 2 -o \( "$1" -eq 2 -a "$2" -lt 95 \); then
+           cat >&4 <<EOF
+
+Your cc seems to be gcc and its version seems to be less than 2.95.
+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.)
+
+Note that as of gcc 2.95 (19990728) and Perl 5.6.0 (end of March 2000)
+if the said Perl is compiled with the said gcc the lib/sdbm test will 
+dump core.  As this 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.
+
+Cannot continue, aborting.
+
+EOF
+           exit 1
+       fi
+        ;;
 *)     # compile something small: taint.c is fine for this.
        # 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
                        ;;
@@ -75,12 +101,12 @@ case "$cc -v 2>&1 | grep cc" in
                        ;;
        esac
        # cleanup
-       rm -f /tmp/taint$$.o
+       rm -f taint$$.o
        ;;
 esac
 
 # be nauseatingly ANSI
-case "$cc -v 2>&1 | grep gcc" in
+case "`$cc -v 2>&1 | grep gcc`" in
 *gcc*) ccflags="$ccflags -ansi"
        ;;
 *)     ccflags="$ccflags -std"
@@ -93,7 +119,7 @@ esac
 # we want optimisation
 
 case "$optimize" in
-'')    case "$cc -v 2>&1 | grep gcc" in
+'')    case "`$cc -v 2>&1 | grep gcc`" in
        *gcc*)  
                optimize='-O3'                          ;;
        *)      case "$_DEC_cc_style" in
@@ -149,7 +175,7 @@ case "`uname -r`" in
 *)            if $test "X$optimize" = "X$undef"; then
                       lddlflags="$lddlflags -msym"
               else
-                 case "`sizer -v`" in
+                 case "`/usr/sbin/sizer -v`" in
                  *4.0D*)
                      # QAR 56761: -O4 + .so may produce broken code,
                      # fixed in 4.0E or better.
@@ -160,7 +186,7 @@ case "`uname -r`" in
                  esac
                  # -msym: If using a sufficiently recent /sbin/loader,
                  # keep the module symbols with the modules.
-                  lddlflags="$lddlflags -msym"
+                  lddlflags="$lddlflags -msym -std"
               fi
                ;;
 esac
@@ -200,15 +226,26 @@ esac
 # please adjust this appropriately.  See also pp_sys.c just before the
 # emulate_eaccess().
 
+# Fixed in V5.0A.
+case "`/usr/sbin/sizer -v`" in
+*5.0[A-Z]*|*5.[1-9]*|*[6-9].[0-9]*)
+       : ok
+       ;;
+*)
+# V5.0 or previous
 pp_sys_cflags='ccflags="$ccflags -DNO_EFF_ONLY_OK"'
+       ;;
+esac
 
+# The off_t is already 8 bytes, so we do have largefileness.
+
+cat > UU/usethreads.cbu <<'EOCBU'
 # This script UU/usethreads.cbu will get 'called-back' by Configure 
 # after it has prompted the user for whether to use threads.
-cat > UU/usethreads.cbu <<'EOCBU'
 case "$usethreads" in
 $define|true|[yY]*)
        # Threads interfaces changed with V4.0.
-       case "$cc -v 2>&1 | grep gcc" in
+       case "`$cc -v 2>&1 | grep gcc`" in
        *gcc*)ccflags="-D_REENTRANT $ccflags" ;;
        *)  case "`uname -r`" in
            *[123].*)   ccflags="-threads $ccflags" ;;
@@ -221,11 +258,23 @@ $define|true|[yY]*)
        *)        libswanted="$libswanted pthread exc" ;;
        esac
 
-        usemymalloc='n'
+       case "$usemymalloc" in
+       '')
+               usemymalloc='n'
+               ;;
+       esac
        ;;
 esac
 EOCBU
 
+cat > UU/uselongdouble.cbu <<'EOCBU'
+# This script UU/uselongdouble.cbu will get 'called-back' by Configure 
+# after it has prompted the user for whether to use long doubles.
+case "$uselongdouble" in
+$define|true|[yY]*) d_Gconvert='sprintf((b),"%.*Lg",(n),(x))' ;;
+esac
+EOCBU
+
 #
 # Unset temporary variables no more needed.
 #