Patch by Brian Gallew for DG/UX. I'm not quite sure what it does but

it seems harmless for other platforms.  It plays tricks with the name
of the library used to link with.  Apparently DG/UX really wants a
shared library to link with if it wants shared modules to use symbols
from the library.  I'm not sure why this wasn't an issue with 1.4;
DG/UX seems to be the only platform where moving to a single library
made things harder!

BTW This adds a target to create libpython$(VERSION).so; however this
target is *only* for DG/UX.

Makefile.in

@@ -170,6 +170,7 @@ python:		$(LIBRARY) buildno
 		      $(srcdir)/Modules/getbuildinfo.c
 		$(AR) cr $(LIBRARY) getbuildinfo.o
 		$(RANLIB) $(LIBRARY)
+		@DGUX_IS_BROKEN@
 		cd Modules;  $(MAKE) OPT="$(OPT)" VERSION="$(VERSION)" \
 			prefix="$(prefix)" exec_prefix="$(exec_prefix)" \
 			LIBRARY=../$(LIBRARY) link
@@ -191,6 +192,12 @@ $(LIBRARY):	$(SUBDIRS)
 		for i in $(SUBDIRS); do \
 			(cd $$i; $(MAKE) VERSION="$(VERSION)" add2lib); done
 
+# This rule is only here for DG/UX!!!
+libpython$(VERSION).so:	$(LIBRARY)
+		test -d dgux || mkdir dgux
+		(cd dgux;ar x ../$^;ld -G -o ../$@ * )
+		/bin/rm -rf ./dgux
+
 $(SUBDIRS):	Makefiles
 
 Parser:
@@ -245,6 +252,8 @@ altbininstall:	python
 			fi; \
 		done
 		$(INSTALL_PROGRAM) python$(EXE) $(BINDIR)/python$(VERSION)$(EXE)
+		@DGUX_IS_BROKEN@
+		test -f libpython$(VERSION).so && $(INSTALL_DATA) libpython$(VERSION).so $(LIBDIR)
 
 # Install the manual page
 maninstall:

Modules/Makefile.pre.in

@@ -100,6 +100,7 @@ MAINOBJ=	python.o
 SYSLIBS=	$(LIBM) $(LIBC)
 
 LIBRARY=	../libpython$(VERSION).a
+REALLIBRARY=	../@REALLIBRARY@
 
 # === Rules ===
 
@@ -130,8 +131,8 @@ EXE=
 
 # This target is used by the master Makefile to link the final binary.
 link:		$(MAINOBJ)
-		$(LINKCC) $(LDFLAGS) $(OPT) $(LINKFORSHARED) $(MAINOBJ) \
+		$(LINKCC) $(LDFLAGS) $(LINKFORSHARED) $(MAINOBJ) \
-		  $(LIBRARY) $(MODLIBS) $(LIBS) $(SYSLIBS) -o python $(LDLAST)
+		  -L.. -lpython$(VERSION) $(MODLIBS) $(LIBS) $(SYSLIBS) -o python $(LDLAST)
 		mv python$(EXE) ../python$(EXE)
 
 clean:

configure.in

@@ -135,6 +135,8 @@ then
 	case $ac_sys_system in
 	AIX*)
 	   LINKCC="\$(srcdir)/makexp_aix python.exp \"\" \$(LIBRARY); \$(PURIFY) \$(CC)";;
+	dgux*)
+	   LINKCC="LD_RUN_PATH=$libdir \$(PURIFY) \$(CC)";;
 	*) LINKCC="\$(PURIFY) \$(CC)";;
 	esac
 fi
@@ -146,6 +148,7 @@ AC_CHECK_PROGS(AR, ar aal, ar)
 AC_SUBST(INSTALL)
 AC_SUBST(INSTALL_PROGRAM)
 AC_SUBST(INSTALL_DATA)
+AC_SUBST(REALLIBRARY)
 # Install just never works :-(
 if test -z "$INSTALL"
 then
@@ -180,6 +183,8 @@ fi
 AC_AIX
 AC_MINIX
 
+if test "$MACHDEP" != "dguxR4"
+then
 AC_MSG_CHECKING(whether $CC accepts -Olimit 1500)
 AC_CACHE_VAL(ac_cv_olimit_ok,
 [ac_save_cc="$CC"
@@ -193,6 +198,7 @@ if test $ac_cv_olimit_ok = yes; then
   OPT="$OPT -Olimit 1500"
 fi
 
+AC_SUBST(DGUX_IS_BROKEN)
 AC_MSG_CHECKING(whether $CC accepts -OPT:Olimit=0)
 AC_CACHE_VAL(ac_cv_opt_olimit_ok,
 [ac_save_cc="$CC"
@@ -205,6 +211,13 @@ AC_MSG_RESULT($ac_cv_opt_olimit_ok)
 if test $ac_cv_opt_olimit_ok = yes; then
   OPT="$OPT -OPT:Olimit=0"
 fi
+  REALLIBRARY='libpython$(VERSION).a'
+  DGUX_IS_BROKEN="# dgux rule not included"
+else
+  REALLIBRARY='libpython$(VERSION).so'
+  OPT="$OPT -pic"
+  DGUX_IS_BROKEN="make $REALLIBRARY"
+fi
 
 # check for ANSI or K&R ("traditional") preprocessor
 AC_MSG_CHECKING(for C preprocessor type)
@@ -279,6 +292,7 @@ then
 	DYNIX/ptx*) LDSHARED="ld -G";;
 	next/*) LDSHARED='$(CC) $(CFLAGS) -nostdlib -r';;
 	Linux*) LDSHARED="gcc -shared";;
+	dgux*) LDSHARED="ld -G";;
 	FreeBSD*|NetBSD*) LDSHARED="ld -Bshareable";;
 	SCO_SV*) LDSHARED="cc -G -KPIC -Ki486 -belf -Wl,-Bexport";;
 	*)	LDSHARED="ld";;