Preliminary Unixware7/SVR5 support patches

[Robert Lipe <robertl at dgii dot com>]

SCO has announced Unixware 7, a product based on System V Release 5.
It's not yet shipping, but I've discussed this with appropriate people
at SCO and we've agreed that changes of this nature do not violate any
NDAs.   

The following patches should get at least the four of us that are on 
the egcs lists that are running the prereleases all on the same page
instead of individually implementing our own hacks and driving each
other crazy with problems the others don't have. :-)

With only these changes, egcs bootstraps, and almost all of a 'make
check' passes, but it does manage to trip over itself with some of the 
C++ math functions (believed to be an artifact of me blowing off the 
fixincludes process right now) and some library dependencies (which I 
will probably fix by adding a new i386/blah.h file that #includes 
sysv4.h and redefines LIB_SPEC).   This is why there is the token 
"placeholder" entry in gcc/configure.in to make a place for those 
changes to be made.


Wed Dec 31 14:38:51 1997   Robert Lipe (robertl@dgii.com)
	* config.guess: Recognize i[3456]-i586-UnixWare7-sysv5.

--- config.guess_       Fri Dec 26 23:32:07 1997
+++ config.guess        Mon Dec 29 21:42:46 1997
@@ -667,6 +667,13 @@
                echo ${UNAME_MACHINE}-pc-sysv${UNAME_RELEASE}
        fi
        exit 0 ;;
+    i?86:*:5:7)
+       UNAME_REL=`(/bin/uname -X|egrep Release|sed -e 's/.*= //')`
+       (/bin/uname -X|egrep i80486 >/dev/null) && UNAME_MACHINE=i486
+       (/bin/uname -X|egrep '^Machine.*Pentium' >/dev/null) \
+               && UNAME_MACHINE=i586
+       echo ${UNAME_MACHINE}-${UNAME_SYSTEM}${UNAME_VERSION}-sysv${UNAME_RELEAS
E}
+       exit 0 ;;
     i?86:*:3.2:*)
        if test -f /usr/options/cb.name; then
                UNAME_REL=`sed -n 's/.*Version //p' </usr/options/cb.name`

Wed Dec 31 14:38:51 1997   Robert Lipe (robertl@dgii.com)

	* configure.in: (i[3456]86-UnixWare7-sysv5)   Treat much like SVR4
	  for now

--- gcc/configure.in_   Mon Dec 29 21:37:32 1997
+++ gcc/configure.in    Mon Dec 29 23:09:57 1997
@@ -1031,6 +1031,18 @@
                        thread_file='solaris'
                fi
                ;;
+       i[[3456]]86-*-sysv5*)           # Intel x86 on System V Release 5
+               xm_file=i386/xm-sysv4.h
+               tm_file=i386/sysv4.h
+               if [[ x$stabs = xyes ]]
+               then
+                       tm_file="${tm_file} dbx.h"
+               fi
+               tmake_file=i386/t-crtpic
+               xmake_file=x-svr4
+               extra_parts="crtbegin.o crtend.o"
+               fixincludes=Makefile.in # The headers are just fine, thank you.
+               ;;
        i[[3456]]86-*-sysv4*)           # Intel 80386's running system V.4
                xm_file=i386/xm-sysv4.h
                tm_file=i386/sysv4.h


-- 
Robert Lipe       http://www.dgii.com/people/robertl       robertl@dgii.com