+# $Id: dgux.sh,v 1.9 2001-05-07 00:06:00-05 Takis Exp $
+
+# This is a hints file for DGUX, which is EMC's Data General's Unix. It
+# was originally developed with version 5.4.3.10 of the OS, and then was
+# later updated running under version 4.11.2 (running on m88k hardware).
+# The gross features should work with versions going back to 2.nil but
+# some tweaking will probably be necessary.
#
-# hints file for Data General DG/UX
-# these hints tweaked for perl5 on an AViiON mc88100, running DG/UX 5.4R2.01
+# DGUX is a SVR4 derivative. It ships with gcc as the standard
+# compiler. Since version 3.0 it has shipped with Perl 4.036
+# installed in /usr/bin, which is kind of neat. Be careful when you
+# install that you don't overwrite the system version, though (by
+# answering yes to the question about installing perl as /usr/bin/perl),
+# as it would suck to try to get support if the vendor learned that you
+# were physically replacing the system binaries.
#
+# -Roderick Schertler <roderick@argon.org>
-gidtype='gid_t'
-groupstype='gid_t'
-libswanted="dgc $libswanted"
-uidtype='uid_t'
-d_index='define'
-ccflags='-D_POSIX_SOURCE -D_DGUX_SOURCE'
+# The standard system compiler is gcc, but invoking it as cc changes its
+# behavior. I have to pick one name or the other so I can get the
+# dynamic loading switches right (they vary depending on this). I'm
+# picking gcc because there's no way to get at the optimization options
+# and so on when you call it cc.
-# this hasn't been tried with dynamic loading at all
-usedl='false'
+##########################################
+# Modified by Takis Psarogiannakopoulos
+# Universirty of Cambridge
+# Centre for Mathematical Sciences
+# Department of Pure Mathematics
+# Wilberforce road
+# Cambridge CB3 0WB , UK
+# e-mail <takis@xfree86.org>
+# Use GCC-2.95.2/3 rev (DG/UX) for threads
+# This compiler supports the -pthread switch
+# to link correctly DG/UX 's -lthread.
+###########################################
-#
-# an ugly hack, since the Configure test for "gcc -P -" hangs.
-# can't just use 'cppstdin', since our DG has a broken cppstdin :-(
-#
-cppstdin=`cd ..; pwd`/cppstdin
-cpprun=`cd ..; pwd`/cppstdin
+cc=gcc
+ccflags="-DDGUX -D_DGUX_SOURCE"
+# Debug build with GNU as,ld and -gstabs+
+# ccflags="-DDGUX -D_DGUX_SOURCE -gstabs+"
+# Dummy ; always compile with -O2 on GCC 2.95.2/3 rev (DG/UX)
+optimize="-mno-legend -O2"
+
+archname="ix86-dgux"
+libpth="/usr/lib"
+
+#####################################
+# <takis@xfree86.org>
+# Change this if you want.
+# prefix =/usr/local
+#####################################
+
+prefix=/usr/local
+perlpath="$prefix/bin/perl57"
+startperl="#! $prefix/bin/perl57"
+privlib="$prefix/lib/perl57"
+man1dir="$prefix/man/man1"
+man3dir="$prefix/man/man3"
+
+sitearch="$prefix/lib/perl57/$archname"
+sitelib="$prefix/lib/perl57"
+
+#Do not overwrite by default /usr/bin/perl of DG/UX
+installusrbinperl="$undef"
+
+# Configure may fail to find lstat()
+# function in <sys/stat.h>.
+d_lstat=define
+# Internal malloc is needed for correct operation
+# of perl-5.7.x
+# DG/UX native malloc is causing problems.
+# Some perl tests they failing badly.
+# I have no time to investigate more.
+# <takis@xfree86.org>
+
+case "$usemymalloc" in
+'') usemymalloc='y' ;;
+esac
+
+case "$uselongdouble" in
+'') uselongdouble='y' ;;
+esac
+
+#### No for threads ???? #####
+#usevfork=true
+usevfork=false
+
+# DG has this thing set up with symlinks which point to different places
+# depending on environment variables (see elink(5)) and the compiler and
+# related tools use them to access different development environments
+# (COFF, ELF, m88k BCS and so on), see sde(5). The upshot, however, is
+# that when a normal program tries to access one of these elinks it sees
+# no such file (like stat()ting a mis-directed symlink). Setting
+# $plibpth to explicitly include the place to which the elinks point
+# allows Configure to find libraries which vary based on the development
+# environment.
#
-# you don't want to use /usr/ucb/cc
+# Starting with version 4.10 (the first time the OS supported Intel
+# hardware) all libraries are accessed with this mechanism.
#
-cc='gcc'
+# The default $TARGET_BINARY_INTERFACE changed with version 4.10. The
+# system now comes with a link named /usr/sde/default which points to
+# the proper entry, but older versions lacked this and used m88kdgux
+# directly.
+
+: && sde_path=${SDE_PATH:-/usr}/sde # hide from Configure
+while : # dummy loop
+do
+ if [ -n "$TARGET_BINARY_INTERFACE" ]
+ then set X "$TARGET_BINARY_INTERFACE"
+ else set X default dg m88k_dg ix86_dg m88kdgux m88kdguxelf
+ fi
+ shift
+ default_sde=$1
+ for sde
+ do
+ [ -d "$sde_path/$sde" ] && break 2
+ done
+ cat <<END >&2
+
+NOTE: I can't figure out what SDE is used by default on this machine (I
+didn't find a likely directory under $sde_path). This is bad news. If
+this is a R4.10 or newer system I'm not going to be able to find any of
+your libraries, if this system is R3.10 or older I won't be able to find
+the math library. You should re-run Configure with the environment
+variable TARGET_BINARY_INTERFACE set to the proper value for this
+machine, see sde(5) and the notes in hints/dgux.sh.
+
+END
+ sde=$default_sde
+ break
+done
+
+plibpth="$plibpth $sde_path/$sde/usr/lib"
+unset sde_path default_sde sde
+
+#####################################
+# <takis@xfree86.org>
+#####################################
+
+libperl="libperl57.so"
+
+# Many functions (eg, gethostent(), killpg(), getpriority(), setruid()
+# dbm_*(), and plenty more) are defined in -ldgc. Usually you don't
+# need to know this (it seems that libdgc.so is searched automatically
+# by ld), but Configure needs to check it otherwise it will report all
+# those functions as missing.
+
+#####################################
+# <takis@xfree86.org>
+#####################################
+
+# libswanted="dgc gdbm $libswanted"
+#libswanted="dbm posix $libswanted"
+# Remove malloc since we use the internal perl one.
+libswanted="dbm posix resolv socket nsl dl m"
+
+#####################################
+# <takis@xfree86.org>
+#####################################
+
+mydomain='.localhost'
+cf_by=`(whoami) 2>/dev/null`
+cf_email="$cf_by@localhost"
+
+# Dynamic loading works using the dlopen() functions. Note that dlfcn.h
+# used to be broken, it declared _dl*() rather than dl*(). This was the
+# case up to 3.10, it has been fixed in 4.11. I'm not sure if it was
+# fixed in 4.10. If you have the older header just ignore the warnings
+# (since pointers and integers have the same format on m88k).
+
+# usedl=true
+usedl=false
+
+# For cc rather than gcc the flags would be `-K PIC' for compiling and
+# -G for loading. I haven't tested this.
+
+#####################################
+# <takis@xfree86.org>
+# Use -fPIC instead -fpic
+#####################################
+
+cccdlflags=-fPIC
+#We must use gcc
+ld="gcc"
+lddlflags="-shared"
+
+############################################################################
+# DGUX Posix 4A Draft 10 Thread support
+# <takis@xfree86.org>
+# use Configure -Dusethreads to enable
+############################################################################
+
+cat > UU/usethreads.cbu <<'EOCBU'
+case "$usethreads" in
+$define|true|[yY]*)
+ ccflags="$ccflags"
+ shift
+ # DG/UX's sched_yield is in -lrte
+ # Remove malloc since we use the internal perl one.
+ libswanted="dbm posix resolv socket nsl dl m rte"
+ archname="ix86-dgux-thread"
+ sitearch="$prefix/lib/perl57/$archname"
+ sitelib="$prefix/lib/perl57"
+ case "$cc" in
+ *gcc*)
+ #### Use GCC -2.95.2/3 rev (DG/UX) and -pthread
+ #### Otherwise take out the switch -pthread
+ #### And add manually the -D_POSIX4A_DRAFT10_SOURCE flag.
+ ld="gcc"
+ ccflags="$ccflags -D_POSIX4A_DRAFT10_SOURCE"
+ # Debug build : use -DS flag on command line perl
+ # ccflags="$ccflags -DDEBUGGING -D_POSIX4A_DRAFT10_SOURCE -pthread"
+ cccdlflags='-fPIC'
+ lddlflags="-shared"
+ #### Use GCC -2.95.2/3 rev (DG/UX) and -pthread
+ #### Otherwise take out the switch -pthread
+ #### And add manually the -lthread library.
+ ldflags="$ldflags -pthread"
+ ;;
+
+ *)
+ echo "Not supported DG/UX cc and threads !"
+ ;;
+ esac
+esac
+EOCBU
+
+# "./Configure -d" can't figure this out easily
+d_suidsafe='define'
+
+###################################################
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