cc=${cc:-cc}
+case "`$cc -v 2>&1 | grep cc`" in
+*gcc*) isgcc=gcc ;;
+esac
+
# do NOT, I repeat, *NOT* take away the leading tabs
# Configure Black Magic (TM)
# reset
_DEC_cc_style=
-case "`$cc -v 2>&1 | grep cc`" in
-*gcc*) _gcc_version=`$cc -v 2>&1 | grep "gcc version" | sed 's%^gcc version \([0-9]*\)\.\([0-9]*\) .*%\1 \2%'`
+case "$isgcc" in
+gcc) _gcc_version=`$cc --version 2>&1 | tr . ' '`
set $_gcc_version
- if test "$1" -lt 2 -o \( "$1" -eq 2 -a "$2" -lt 95 \); then
+ 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.
-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.
+*** Your cc seems to be gcc and its version ($_gcc_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
+*** may dump core (meaning that the SDBM_File extension is unusable).
+*** As this core dump never happens with the vendor cc, this is most
+*** probably a lingering bug in gcc. Therefore unless you have a better
+*** gcc installation 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}' | grep '^V'`
# the main point is the '-v' flag of 'cc'.
case "`cc -v -I. -c taint.c -o taint$$.o 2>&1`" in
*/gemc_cc*) # we have the new DEC GEM CC
esac
# be nauseatingly ANSI
-case "`$cc -v 2>&1 | grep gcc`" in
-*gcc*) ccflags="$ccflags -ansi"
+case "$isgcc" in
+gcc) ccflags="$ccflags -ansi"
;;
*) ccflags="$ccflags -std"
;;
# we want optimisation
case "$optimize" in
-'') case "`$cc -v 2>&1 | grep gcc`" in
- *gcc*)
- optimize='-O3' ;;
+'') case "$isgcc" in
+ gcc) optimize='-O3' ;;
*) case "$_DEC_cc_style" in
- new) optimize='-O4'
- ccflags="$ccflags -fprm d -ieee"
- ;;
+ new) optimize='-O4' ;;
old) optimize='-O2 -Olimit 3200' ;;
esac
ccflags="$ccflags -D_INTRINSICS"
;;
esac
+# we want dynamic fp rounding mode, and we want ieee exception semantics
+case "$isgcc" in
+gcc) ;;
+*) case "$_DEC_cc_style" in
+ new) ccflags="$ccflags -fprm d -ieee" ;;
+ esac
+ ;;
+esac
+
# Make glibpth agree with the compiler suite. Note that /shlib
# is not here. That's on purpose. Even though that's where libc
# really lives from V4.0 on, the linker (and /sbin/loader) won't
case "$usethreads" in
$define|true|[yY]*)
# Threads interfaces changed with V4.0.
- case "`$cc -v 2>&1 | grep gcc`" in
- *gcc*)ccflags="-D_REENTRANT $ccflags" ;;
+ case "$isgcc" in
+ gcc) ccflags="-D_REENTRANT $ccflags" ;;
*) case "`uname -r`" in
*[123].*) ccflags="-threads $ccflags" ;;
*) ccflags="-pthread $ccflags" ;;
# This script UU/uselongdouble.cbu will get 'called-back' by Configure
# after it has prompted the user for whether to use long doubles.
case "$uselongdouble" in
-$define|true|[yY]*) d_Gconvert='sprintf((b),"%.*Lg",(n),(x))' ;;
+$define|true|[yY]*)
+ case "`/usr/sbin/sizer -v`" in
+ *[1-4].0*) cat >&4 <<EOF
+
+***
+*** Sorry, you cannot use long doubles in pre-V5.0 releases of Tru64.
+***
+
+Cannot continue, aborting.
+
+EOF
+ exit 1
+ ;;
+ esac
+ d_Gconvert='sprintf((b),"%.*Lg",(n),(x))'
+ ;;
esac
EOCBU
+case "`/usr/sbin/sizer -v`" in
+*[1-4].0*) d_modfl=undef ;; # must wait till 5.0
+esac
+
#
# Unset temporary variables no more needed.
#