-# sco.sh
+# 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
-# by Andy Dougherty <doughera@lafcol.lafayette.edu>
-
-# To use gcc, use sh Configure -Dcc=gcc
-# But gcc will *not* do dynamic laoding on 3.2.5,
-# for that use sh Configure -Dcc=icc
-# See below for more details.
+# 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
+#
+# 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 developement 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
-
-# Use /bin/uname (because Gnu may be first on the path and
+# NumCPU = 1
+
+# Use /bin/uname (because GNU uname may be first in $PATH and
# it does not support -X) to figure out what SCO version we are:
-case `/bin/uname -X | egrep '^Release'` in
-*3.2v4.*) scorls=3 ;; # I don't know why this is 3 instead of 4 :-)
-*3.2v5.*) scorls=5 ;;
-*) scorls=3 ;; # this probabaly shouldn't happen
+# Matching '^Release' is broken by locale setting:
+# matching '3.2v' should be enough -- FD
+case `/bin/uname -X | egrep '3\.2v'` in
+*3.2v4.*) scorls=3 ;; # OSR 3
+*3.2v5.*) scorls=5 ;; # OSR 5
+*)
+ # Future of SCO OSR is SCO UnixWare: there should not be new OSR releases
+ echo "************************************************************" >&4
+ echo "\a" >&4
+ echo " sco.sh hints file only supports:" >&4
+ echo "\a" >&4
+ echo " - SCO Unix 3.2v4.x (OSR 3)" >&4
+ echo " - SCO Unix 3.2v5.x (OSR 5)" >&4
+ echo "\a" >&4
+ echo "\a" >&4
+ echo " For UnixWare, use svr4.sh hints instead" >&4
+ echo " For UnixWare 7.*, use svr5.sh hints instead" >&4
+ echo "\a" >&4
+ echo "***********************************************************" >&4
+ exit
+;;
esac
+###############################################################
+# Common fixes for all compilers an releases:
+
+###############################################################
+# What is true for SCO5 is true for SCO3 too today, so let's have a single
+# symbol for both
+ccflags="-U M_XENIX -D PERL_SCO"
+
+###############################################################
+# Compilers options section:
+if test "$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 exeption 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
+ # catched 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 $libswanted
+ shift
+ libswanted="$*"
fi
-set X $libswanted
-shift
-libswanted="$*"
+###############################################################
+# 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 $glibpth | sed -e 's! /usr/lib/386 ! !' -e 's! /lib/386 ! !'`
xlibpth=''
-case "$cc" in
-*gcc*) ccflags="$ccflags -U M_XENIX"
- optimize="$optimize -O2"
- ;;
-scocc) ;;
-
-# On SCO 3.2v5 both cc and icc can build dynamic load, but cc core
-# dumps if optimised, so I am only setting this up for icc.
-# It is possible that some 3.2v4.2 system have icc, I seem to
-# recall it was available as a seperate product but I have no
-# knowledge if it can do dynamic loading and if so how.
-# Joel Rosi-Schwartz
-icc)# Apparently, SCO's cc gives rather verbose warnings
- # Set -w0 to turn them off.
- case $scorls in
- 3) ccflags="$ccflags -W0 -quiet -U M_XENIX" ;;
- 5) ccflags="$ccflags -belf -w0 -U M_XENIX"
- optimize="-O1" # -g -O1 will not work
- lddlflags='-G -L/usr/local/lib'
- ldflags=' -W l,-Bexport -L/usr/local/lib'
- dlext='so'
- dlsrc='dl_dlopen.xs'
- usedl='define'
- ;;
- esac
- ;;
-
-*) # Apparently, SCO's cc gives rather verbose warnings
- # Set -w0 to turn them off.
- case $scorls in
- 3) ccflags="$ccflags -W0 -quiet -U M_XENIX" ;;
- 5) ccflags="$ccflags -w0 -U M_XENIX" ;;
- esac
- ;;
-esac
-i_varargs=undef
-
+###############################################################
# I have received one report that nm extraction doesn't work if you're
# using the scocc compiler. This system had the following 'myconfig'
# uname='xxx xxx 3.2 2 i386 '
# cc='scocc', optimize='-O'
-usenm='false'
+# You can override this with Configure -Dusenm.
+case "$usenm" in
+'') 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
-# Apparently, some versions of SCO include both .so and .a libraries,
-# but they don't mix as they do on other ELF systems. The upshot is
-# that Configure finds -ldl (libdl.so) but 'ld' complains it can't
-# find libdl.a.
-# I don't know which systems have this feature, so I'll just remove
-# -dl from libswanted for all SCO systems until someone can figure
-# out how to get dynamic loading working on SCO.
-#
-# The output of uname -X on one such system was
-# System = SCO_SV
-# Node = xxxxx
-# Release = 3.2v5.0.0
-# KernelID = 95/08/08
-# Machine = Pentium
-# BusType = ISA
-# Serial = xxxxx
-# Users = 5-user
-# OEM# = 0
-# Origin# = 1
-# NumCPU = 1
-#
-# The 5.0.0 on the Release= line is probably the thing to watch.
-# Andy Dougherty <doughera@lafcol.lafayette.edu>
-# Thu Feb 1 15:06:56 EST 1996
-libswanted=`echo " $libswanted " | sed -e 's/ dl / /'`
-set X $libswanted
-shift
-libswanted="$*"
+###############################################################
+# 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.
+i_sysselct=$undef
+
+
+###############################################################
+#END of hint file
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