For systems where gcc is used and where we don't know if GNU ld is

used or not, let's ask collect2 which ld it uses and choose to use the
target do-gnu_shared if GNU ld is used.

This solves the reported problems on Solaris systems where GNU cc is
used but GNU ld isn't, and probably on other systems with similar
setups.

1 files changed, 75 insertions, 44 deletions

diff --git a/Makefile.org b/Makefile.org
index 9132551ff7..d1fb1a9d6d 100644
--- a/Makefile.org
+++ b/Makefile.org
@@ -270,72 +270,103 @@ do_gnu-shared:
 	libs="$$libs -l$$i"; \
 	done
 
+DETECT_GNU_LD=${CC} -v 2>&1 | grep '^gcc' >/dev/null 2>&1 && \
+	collect2=`gcc -print-prog-name=collect2 2>&1` && \
+	[ -n "$$collect2" ] && \
+	my_ld=`$$collect2 --help 2>&1 | grep Usage: | sed 's/^Usage: *\([^ ][^ ]*\).*/\1/'` && \
+	[ -n "$$my_ld" ] && \
+	$$my_ld -v 2>&1 | grep 'GNU ld' >/dev/null 2>&1
+
 # This assumes that GNU utilities are *not* used
 do_alpha-osf1-shared:
-	libs='-L. ${SHLIBDEPS}'; for i in ${SHLIBDIRS}; do \
-	( set -x; ${CC}  -shared -o lib$$i.so \
-		-set_version "${SHLIB_VERSION_HISTORY}${SHLIB_VERSION_NUMBER}" \
-		-all lib$$i.a -none $$libs ${EX_LIBS} -lc ) || exit 1; \
-	libs="$$libs -l$$i"; \
-	done
+	if ${DETECT_GNU_LD}; then \
+		$(MAKE) do_gnu-shared; \
+	else \
+		libs='-L. ${SHLIBDEPS}'; for i in ${SHLIBDIRS}; do \
+		( set -x; ${CC}  -shared -o lib$$i.so \
+			-set_version "${SHLIB_VERSION_HISTORY}${SHLIB_VERSION_NUMBER}" \
+			-all lib$$i.a -none $$libs ${EX_LIBS} -lc ) || exit 1; \
+		libs="$$libs -l$$i"; \
+		done; \
+	fi
 
 # This assumes that GNU utilities are *not* used
 # The difference between alpha-osf1-shared and tru64-shared is the `-msym'
 # option passed to the linker.
 do_tru64-shared:
-	libs='-L. ${SHLIBDEPS}'; for i in ${SHLIBDIRS}; do \
-	( set -x; ${CC}  -shared -msym -o lib$$i.so \
-		-set_version "${SHLIB_VERSION_HISTORY}${SHLIB_VERSION_NUMBER}" \
-		-all lib$$i.a -none $$libs ${EX_LIBS} -lc ) || exit 1; \
-	libs="$$libs -l$$i"; \
-	done
+	if ${DETECT_GNU_LD}; then \
+		$(MAKE) do_gnu-shared; \
+	else \
+		libs='-L. ${SHLIBDEPS}'; for i in ${SHLIBDIRS}; do \
+		( set -x; ${CC}  -shared -msym -o lib$$i.so \
+			-set_version "${SHLIB_VERSION_HISTORY}${SHLIB_VERSION_NUMBER}" \
+			-all lib$$i.a -none $$libs ${EX_LIBS} -lc ) || exit 1; \
+		libs="$$libs -l$$i"; \
+		done; \
+	fi
 
 # This assumes that GNU utilities are *not* used
 # The difference between tru64-shared and tru64-shared-rpath is the
 # -rpath ${INSTALLTOP}/lib passed to the linker.
 do_tru64-shared-rpath:
-	libs='-L. ${SHLIBDEPS}'; for i in ${SHLIBDIRS}; do \
-	( set -x; ${CC}  -shared -msym -o lib$$i.so \
-		-rpath  ${INSTALLTOP}/lib \
-		-set_version "${SHLIB_VERSION_HISTORY}${SHLIB_VERSION_NUMBER}" \
-		-all lib$$i.a -none $$libs ${EX_LIBS} -lc ) || exit 1; \
-	libs="$$libs -l$$i"; \
-	done
+	if ${DETECT_GNU_LD}; then \
+		$(MAKE) do_gnu-shared; \
+	else \
+		libs='-L. ${SHLIBDEPS}'; for i in ${SHLIBDIRS}; do \
+		( set -x; ${CC}  -shared -msym -o lib$$i.so \
+			-rpath  ${INSTALLTOP}/lib \
+			-set_version "${SHLIB_VERSION_HISTORY}${SHLIB_VERSION_NUMBER}" \
+			-all lib$$i.a -none $$libs ${EX_LIBS} -lc ) || exit 1; \
+		libs="$$libs -l$$i"; \
+		done; \
+	fi
 
 
 # This assumes that GNU utilities are *not* used
 do_solaris-shared:
-	libs='-L. ${SHLIBDEPS}'; for i in ${SHLIBDIRS}; do \
-	( PATH=/usr/ccs/bin:$$PATH ; export PATH; \
-	  set -x; ${CC}  -G -o lib$$i.so.${SHLIB_MAJOR}.${SHLIB_MINOR} \
-		-h lib$$i.so.${SHLIB_MAJOR}.${SHLIB_MINOR} \
-		-z allextract lib$$i.a $$libs ${EX_LIBS} -lc ) || exit 1; \
-	libs="$$libs -l$$i"; \
-	done
+	if ${DETECT_GNU_LD}; then \
+		$(MAKE) do_gnu-shared; \
+	else \
+		libs='-L. ${SHLIBDEPS}'; for i in ${SHLIBDIRS}; do \
+		( PATH=/usr/ccs/bin:$$PATH ; export PATH; \
+		  set -x; ${CC}  -G -o lib$$i.so.${SHLIB_MAJOR}.${SHLIB_MINOR} \
+			-h lib$$i.so.${SHLIB_MAJOR}.${SHLIB_MINOR} \
+			-z allextract lib$$i.a $$libs ${EX_LIBS} -lc ) || exit 1; \
+		libs="$$libs -l$$i"; \
+		done; \
+	fi
 
 # UnixWare 7 and OpenUNIX 8 native compilers used
 do_svr5-shared:
-	libs='-L. ${SHLIBDEPS}'; for i in ${SHLIBDIRS}; do \
-	( PATH=/usr/ccs/bin:$$PATH ; export PATH; \
-	  find . -name "*.o" -print > allobjs ; \
-	  OBJS= ; export OBJS ; \
-	  for obj in `ar t lib$$i.a` ; do \
-	    OBJS="$${OBJS} `grep $$obj allobjs`" ; \
-	  done ; \
-	  set -x; ${CC}  -G -o lib$$i.so.${SHLIB_MAJOR}.${SHLIB_MINOR} \
-		-h lib$$i.so.${SHLIB_MAJOR}.${SHLIB_MINOR} \
-		$${OBJS} $$libs ${EX_LIBS} ) || exit 1; \
-	libs="$$libs -l$$i"; \
-	done
+	if ${DETECT_GNU_LD}; then \
+		$(MAKE) do_gnu-shared; \
+	else \
+		libs='-L. ${SHLIBDEPS}'; for i in ${SHLIBDIRS}; do \
+		( PATH=/usr/ccs/bin:$$PATH ; export PATH; \
+		  find . -name "*.o" -print > allobjs ; \
+		  OBJS= ; export OBJS ; \
+		  for obj in `ar t lib$$i.a` ; do \
+		    OBJS="$${OBJS} `grep $$obj allobjs`" ; \
+		  done ; \
+		  set -x; ${CC}  -G -o lib$$i.so.${SHLIB_MAJOR}.${SHLIB_MINOR} \
+			-h lib$$i.so.${SHLIB_MAJOR}.${SHLIB_MINOR} \
+			$${OBJS} $$libs ${EX_LIBS} ) || exit 1; \
+		libs="$$libs -l$$i"; \
+		done; \
+	fi
 
 # This assumes that GNU utilities are *not* used
 do_irix-shared:
-	libs='-L. ${SHLIBDEPS}'; for i in ${SHLIBDIRS}; do \
-	( set -x; ${CC} -shared -o lib$$i.so.${SHLIB_MAJOR}.${SHLIB_MINOR} \
-		-Wl,-soname,lib$$i.so.${SHLIB_MAJOR}.${SHLIB_MINOR} \
-		-all lib$$i.a $$libs ${EX_LIBS} -lc) || exit 1; \
-	libs="$$libs -l$$i"; \
-	done
+	if ${DETECT_GNU_LD}; then \
+		$(MAKE) do_gnu-shared; \
+	else \
+		libs='-L. ${SHLIBDEPS}'; for i in ${SHLIBDIRS}; do \
+		( set -x; ${CC} -shared -o lib$$i.so.${SHLIB_MAJOR}.${SHLIB_MINOR} \
+			-Wl,-soname,lib$$i.so.${SHLIB_MAJOR}.${SHLIB_MINOR} \
+			-all lib$$i.a $$libs ${EX_LIBS} -lc) || exit 1; \
+		libs="$$libs -l$$i"; \
+		done; \
+	fi
 
 # This assumes that GNU utilities are *not* used
 # HP-UX includes the full pathname of libs we depend on, so we would get