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 "`$cc -v 2>&1 | grep cc`" in
-*gcc*) ;; # pass
+case "$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 -o \( "$2" -eq 95 -a "$3" -lt 2 \) \) \); then
+ cat >&4 <<EOF
+
+*** 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 /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
;;
;;
esac
# cleanup
- rm -f /tmp/taint$$.o
+ rm -f taint$$.o
;;
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
*) 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.
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
# 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
- *gcc*)ccflags="-D_REENTRANT $ccflags" ;;
+ case "$isgcc" in
+ gcc) ccflags="-D_REENTRANT $ccflags" ;;
*) case "`uname -r`" in
*[123].*) ccflags="-threads $ccflags" ;;
*) ccflags="-pthread $ccflags" ;;
*) libswanted="$libswanted pthread exc" ;;
esac
- usemymalloc='n'
+ case "$usemymalloc" in
+ '')
+ usemymalloc='n'
+ ;;
+ esac
+ # These symbols are renamed in <time.h> so
+ # that the Configure hasproto doesn't see them.
+ d_asctime_r_proto="$define"
+ d_ctime_r_proto="$define"
+ d_gmtime_r_proto="$define"
+ d_localtime_r_proto="$define"
;;
esac
EOCBU
+cat > UU/uselongdouble.cbu <<'EOCBU'
+# This script UU/uselongdouble.cbu will get 'called-back' by Configure
+# after it has prompted the user for whether to use long doubles.
+case "$uselongdouble" in
+$define|true|[yY]*)
+ case "`/usr/sbin/sizer -v`" in
+ *[1-4].0*) cat >&4 <<EOF
+
+***
+*** Sorry, you cannot use long doubles in pre-V5.0 releases of Tru64.
+***
+
+Cannot continue, aborting.
+
+EOF
+ exit 1
+ ;;
+ esac
+ ;;
+esac
+EOCBU
+
+case "`/usr/sbin/sizer -v`" in
+*[1-4].0*) d_modfl=undef ;; # must wait till 5.0
+esac
+
+case "$loclibpth" in
+'') ;;
+*)
+ needusrshlib=''
+ for p in $loclibpth
+ do
+ if test -n "`ls $p/libdb.so* 2>/dev/null`"; then
+ needusrshlib=yes
+ fi
+ if test -d $p; then
+ echo "Appending $p to LD_LIBRARY_PATH." >& 4
+ case "$LD_LIBRARY_PATH" in
+ '') LD_LIBRARY_PATH=$p ;;
+ *) LD_LIBRARY_PATH=$LD_LIBRARY_PATH:$p ;;
+ esac
+ fi
+ done
+ echo "LD_LIBRARY_PATH is now $LD_LIBRARY_PATH." >& 4
+ # This is evil but I can't think of a nice workaround:
+ # the /usr/shlib/libdb.so needs to be seen first,
+ # or running Configure will fail.
+ if test -n "$needusrshlib"; then
+ echo "Prepending /usr/shlib to loclibpth." >& 4
+ loclibpth="/usr/shlib $loclibpth"
+ echo "loclibpth is now $loclibpth." >& 4
+ fi
+ ;;
+esac
+
#
# Unset temporary variables no more needed.
#
projects / p5sagit/p5-mst-13.2.git / blobdiff