# sco.sh
# Courtesy of Joel Rosi-Schwartz <j.schwartz@agonet.it>
-
+###############################################################
# Additional SCO version info from
# Peter Wolfe <wolfe@teloseng.com>
-# Last revised
# Fri Jul 19 14:54:25 EDT 1996
# and again Tue Sep 29 16:37:25 EDT 1998
# by Andy Dougherty <doughera@lafayette.edu>
-
+# Mostly rewritten on
+# Tue Jan 19 23:00:00 CET 1999
+# by Francois Desarmenien <desar@club-internet.fr>
+# Modified by Boyd Gerber <gerberb@zenez.com>
+# Tue Sep 21 1999
+###############################################################
+#
+# To use cc, use sh Configure
# To use gcc, use sh Configure -Dcc=gcc
-# To use icc, use sh Configure -Dcc=icc
+#
+# Default on 3.2v4 is to use static link (dynamic loading unsupported).
+# Default on 3.2v5 is to use dynamic loading.
+# To use static linkink instead, use to sh Configure -Dusedl=n
+#
+# Warning: - to use dynamic loading with gcc, you need gcc 2.8.0 or later
+# ******** - to compile with older releases of gcc, use Configure -Dusedl=n
+# or it wont compile properly
+#
+###############################################################
+# NOTES:
+# -----
+#
+# I Have removed inclusion of ODBM_File for OSR5
+# because it core dumps and make tests fails.
+#
+# Support for icc compiler has been removed, because it 'breaks'
+# a lot of code :-(
+#
+# It's *always* a good idea to first make a static link to be sure to
+# have all symbols resolved with the current choice of libraries, since
+# with dynamic linking, unresolved symbols are allowed an will be detected
+# only at runtime (when you try to load the module or worse, when you call
+# the symbol)
+#
+# The best choice of compiler on OSR 5 (3.2v5.*) seems to be gcc >= 2.8.0:
+# -You cannot optimize with genuine sco cc (miniperl core dumps),
+# so Perl is faster if compiled with gcc.
+# -Even optimized for speed, gcc generated code is smaller (!!!)
+# -gcc is free
+# -I use ld to link which is distributed with the core OS distribution, so you
+# don't need to buy the development kit, just find someone kind enough to
+# give you a binary release of gcc.
+#
+#
+###############################################################
# figure out what SCO version we are. The output of uname -X is
# something like:
# System = SCO_SV
# Node = xxxxx
# Release = 3.2v5.0.0
# KernelID = 95/08/08
-# Machine = Pentium
+# Machine = Pentium
# BusType = ISA
# Serial = xxxxx
# Users = 5-user
# OEM# = 0
# Origin# = 1
-# NumCPU = 1
+# NumCPU = 1
# Use /bin/uname (because GNU uname may be first in $PATH and
# it does not support -X) to figure out what SCO version we are:
-case `/bin/uname -X | egrep '^Release'` in
-*3.2v4.*) scorls=3 ;; # I don't know why this is 3 instead of 4.
-*3.2v5.*) scorls=5 ;;
-*) scorls=5 ;; # Hope the future will be compatible.
+# Matching '^Release' is broken by locale setting:
+# matching '3.2v' should be enough -- FD
+case `/bin/uname -X | egrep '3\.2v'` in
+*3.2v4.*) scorls=3 ;; # OSR 3
+*3.2v5.*) scorls=5 ;; # OSR 5
+*)
+ # Future of SCO OSR is SCO UnixWare: there should not be new OSR releases
+ echo "************************************************************" >&4
+ echo "\a" >&4
+ echo " sco.sh hints file only supports:" >&4
+ echo "\a" >&4
+ echo " - SCO Unix 3.2v4.x (OSR 3)" >&4
+ echo " - SCO Unix 3.2v5.x (OSR 5)" >&4
+ echo "\a" >&4
+ echo "\a" >&4
+ echo " For UnixWare, use svr4.sh hints instead" >&4
+ echo " For UnixWare 7.*, use svr5.sh hints instead" >&4
+ echo "\a" >&4
+ echo "***********************************************************" >&4
+ exit
+;;
esac
+###############################################################
+# Common fixes for all compilers an releases:
+
+###############################################################
+# What is true for SCO5 is true for SCO3 too today, so let's have a single
+# symbol for both
+ccflags="-U M_XENIX -D PERL_SCO"
+
+###############################################################
+# Compilers options section:
+if test "$scorls" = "3"
+then
+ dlext=''
+ case "$cc" in
+ *gcc*) optimize='-O2' ;;
+ *) ccflags="$ccflags -W0 -quiet"
+ optimize='-O' ;;
+ esac
+else
+ ###############################################################
+ # Need this in release 5 because of changed fpu exception rules
+ ccflags="$ccflags -D HAS_FPSETMASK"
+
+ ###############################################################
+ # In Release 5, always compile ELF objects
+ case "$cc" in
+ *gcc*)
+ ccflags="$ccflags -melf"
+ optimize='-O2'
+ ;;
+ *)
+ ccflags="$ccflags -w0 -belf"
+ optimize='-O0'
+ ;;
+ esac
+ ###############################################################
+ # Dynamic loading section:
+ #
+ # We use ld to build shared libraries as it is always available
+ # and seems to work better than GNU's one on SCO
+ #
+ # ccdlflags : must tell the linker to export all global symbols
+ # cccdlflags: must tell the compiler to generate relocatable code
+ # lddlflags : must tell the linker to output a shared library
+ #
+ # /usr/local/lib is added for convenience, since 'foreign' libraries
+ # are usually put there in sco
+ #
+ if test "$usedl" != "n"; then
+ ld='ld'
+ case "$cc" in
+ *gcc*)
+ ccdlflags='-Xlinker -Bexport -L/usr/local/lib'
+ cccdlflags='-fpic'
+ lddlflags='-G -L/usr/local/lib'
+ ;;
+ *)
+ ccdlflags='-Wl,-Bexport -L/usr/local/lib'
+ cccdlflags='-Kpic'
+ lddlflags='-G -L/usr/local/lib'
+ ;;
+ esac
+
+ ###############################################################
+ # Use dynamic loading
+ usedl='define'
+ dlext='so'
+ dlsrc='dl_dlopen.xs'
+
+ ###############################################################
+ # Force to define those symbols, as they are #defines and not
+ # caught by Configure, and they are useful
+ d_dlopen='define'
+ d_dlerror='define'
+ fi
+fi
+
+
+###############################################################
+# Various hints, common to all releases, to have it work better:
+
+###############################################################
+# We need to remove libdl, as libdl.so exists, but ld complains
+# it can't find libdl.a ! Bug or feature ? :-)
+libswanted=`echo " $libswanted " | sed -e 's/ dl / /'`
+set X $libswanted
+shift
+libswanted="$*"
+
+###############################################################
+# Remove libbind because it conflicts with libsocket.
+libswanted=`echo " $libswanted " | sed -e 's/ bind / /'`
+set X $libswanted
+shift
+libswanted="$*"
+
+###############################################################
# Try to use libintl.a since it has strcoll and strxfrm
libswanted="intl $libswanted"
+
+###############################################################
# Try to use libdbm.nfs.a since it has dbmclose.
-#
if test -f /usr/lib/libdbm.nfs.a ; then
libswanted=`echo "dbm.nfs $libswanted " | sed -e 's/ dbm / /'`
set X $libswanted
libswanted="$*"
fi
+###############################################################
+# At least for ORS5.0.2, prefer sprintf() over gcvt(), since gcvt()
+# used to cause a SIGFPE and a core dump when passed a NaN.
+# This may not be an issue in perl-5.8.x and later since we
+# try to trap SIGFPE. However, preferring sprintf() should be
+# safe anyway, so let's go ahead and set it. See the bugs database
+# item [perl #3100]. --A.D. 12/2004.
+ gconvert_preference='sprintf'
+
+###############################################################
+# We disable ODBM_File if OSR5 because it's mostly broken
+# but keep it for ODT3 as it seems to work.
+if test "$scorls" = "5"; then
+ i_dbm='undef'
+fi
+
+###############################################################
# We don't want Xenix cross-development libraries
glibpth=`echo $glibpth | sed -e 's! /usr/lib/386 ! !' -e 's! /lib/386 ! !'`
xlibpth=''
-# Common fix for all compilers.
-ccflags="$ccflags -U M_XENIX"
-
-# Set flags for optimization and warning levels.
-case "$cc" in
-*gcc*) case "$optimize" in
- '') optimize='-O2' ;;
- esac
- ;;
-scocc) ;; # Anybody know anything about this?
-*) # icc or cc -- only relevant difference is safe level of
- # optimization. Apparently.
- case $scorls in
- 3) ccflags="$ccflags -W0 -quiet" ;;
- *) ccflags="$ccflags -w0" ;;
- esac
- case "$optimize" in
- '') case "$cc" in
- icc) optimize="-O1" ;;
- *) optimize="-O0" ;;
- esac
- ;;
- esac
- ;;
-esac
-
-# DYNAMIC LOADING: Dynamic loading won't work with scorls=3.
-# It ought to work with Release = 3.2v5.0.0 or later.
-if test "$scorls" = "3" -a "X$usedl" = "X"; then
- usedl=$undef
-else
- # I do not know exactly which of these are essential,
- # but this set has been recommended. --AD
- # These ought to be patched back into metaconfig, but the
- # current metaconfig units don't touch ccflags.
- # Unfortunately, the default on SCO is to produce COFF output, but
- # ELF is needed for dynamic loading, and the cc man page recommends
- # "Always specify option -b elf if ELF and COFF files might be mixed."
- # Therefore, we'll compile everything with -b elf.
- case "$cc" in
- *gcc*) ;;
- *) ccflags="$ccflags -b elf" ;;
- esac
- cccdlflags=none
- ccdlflags='-W l,-Bexport'
- lddlflags="$lddlflags -b elf -G"
- ldflags="$ldflags -b elf -W l,-Bexport"
-fi
-
+###############################################################
# I have received one report that nm extraction doesn't work if you're
# using the scocc compiler. This system had the following 'myconfig'
# uname='xxx xxx 3.2 2 i386 '
'') usenm='false' ;;
esac
+###############################################################
# If you want to use nm, you'll probably have to use nm -p. The
# following does that for you:
nm_opt='-p'
+###############################################################
# I have received one report that you can't include utime.h in
# pp_sys.c. Uncomment the following line if that happens to you:
# i_utime=undef
+###############################################################
# Perl 5.003_05 and later try to include both <time.h> and <sys/select.h>
# in pp_sys.c, but that fails due to a redefinition of struct timeval.
-# This will generate a WHOA THERE. Accept the default.
i_sysselct=$undef
+
+
+###############################################################
+#END of hint file
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