On Solaris64, cc needs the flag -xarch=v9 when linking shared

libraries.  Make a general change to support shared library
linking flags in general.
Noted by Nick Briggs <briggs@parc.xerox.com>

Makefile.org

@@ -191,6 +191,7 @@ SHARED_CRYPTO=libcrypto$(SHLIB_EXT)
 SHARED_SSL=libssl$(SHLIB_EXT)
 SHARED_LIBS=
 SHARED_LIBS_LINK_EXTS=
+SHARED_LDFLAGS=
 
 GENERAL=        Makefile
 BASENAME=       openssl
@@ -258,7 +259,8 @@ do_bsd-gcc-shared: do_gnu-shared
 do_linux-shared: do_gnu-shared
 do_gnu-shared:
 	libs='-L. ${SHLIBDEPS}'; for i in ${SHLIBDIRS}; do \
-	( set -x; ${CC}  -shared -o lib$$i.so.${SHLIB_MAJOR}.${SHLIB_MINOR} \
+	( set -x; ${CC} ${SHARED_LDFLAGS} \
+		-shared -o lib$$i.so.${SHLIB_MAJOR}.${SHLIB_MINOR} \
 		-Wl,-soname=lib$$i.so.${SHLIB_MAJOR}.${SHLIB_MINOR} \
 		-Wl,--whole-archive lib$$i.a \
 		-Wl,--no-whole-archive $$libs ${EX_LIBS} -lc ) || exit 1; \
@@ -278,7 +280,8 @@ do_alpha-osf1-shared:
 		$(MAKE) do_gnu-shared; \
 	else \
 		libs='-L. ${SHLIBDEPS}'; for i in ${SHLIBDIRS}; do \
-		( set -x; ${CC}  -shared -o lib$$i.so \
+		( set -x; ${CC} ${SHARED_LDFLAGS} \
+			-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$$i"; \
@@ -293,7 +296,8 @@ do_tru64-shared:
 		$(MAKE) do_gnu-shared; \
 	else \
 		libs='-L. ${SHLIBDEPS}'; for i in ${SHLIBDIRS}; do \
-		( set -x; ${CC}  -shared -msym -o lib$$i.so \
+		( set -x; ${CC} ${SHARED_LDFLAGS} \
+			-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$$i"; \
@@ -308,7 +312,8 @@ do_tru64-shared-rpath:
 		$(MAKE) do_gnu-shared; \
 	else \
 		libs='-L. ${SHLIBDEPS}'; for i in ${SHLIBDIRS}; do \
-		( set -x; ${CC}  -shared -msym -o lib$$i.so \
+		( set -x; ${CC} ${SHARED_LDFLAGS} \
+			-shared -msym -o lib$$i.so \
 			-rpath  ${INSTALLTOP}/lib \
 			-set_version "${SHLIB_VERSION_HISTORY}${SHLIB_VERSION_NUMBER}" \
 			-all lib$$i.a -none $$libs ${EX_LIBS} -lc ) || exit 1; \
@@ -324,7 +329,8 @@ do_solaris-shared:
 	else \
 		libs='-L. ${SHLIBDEPS}'; for i in ${SHLIBDIRS}; do \
 		( PATH=/usr/ccs/bin:$$PATH ; export PATH; \
-		  set -x; ${CC}  -G -o lib$$i.so.${SHLIB_MAJOR}.${SHLIB_MINOR} \
+		  set -x; ${CC} ${SHARED_LDFLAGS} \
+			-G -o lib$$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$$i"; \
@@ -343,7 +349,8 @@ do_svr5-shared:
 		  for obj in `ar t lib$$i.a` ; do \
 		    OBJS="$${OBJS} `grep $$obj allobjs`" ; \
 		  done ; \
-		  set -x; ${CC}  -G -o lib$$i.so.${SHLIB_MAJOR}.${SHLIB_MINOR} \
+		  set -x; ${CC} ${SHARED_LDFLAGS} \
+			-G -o lib$$i.so.${SHLIB_MAJOR}.${SHLIB_MINOR} \
 			-h lib$$i.so.${SHLIB_MAJOR}.${SHLIB_MINOR} \
 			$${OBJS} $$libs ${EX_LIBS} ) || exit 1; \
 		libs="$$libs -l$$i"; \
@@ -356,7 +363,8 @@ do_irix-shared:
 		$(MAKE) do_gnu-shared; \
 	else \
 		libs='-L. ${SHLIBDEPS}'; for i in ${SHLIBDIRS}; do \
-		( set -x; ${CC} -shared -o lib$$i.so.${SHLIB_MAJOR}.${SHLIB_MINOR} \
+		( set -x; ${CC} ${SHARED_LDFLAGS} \
+			-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"; \
@@ -376,7 +384,8 @@ do_irix-shared:
 #
 do_hpux-shared:
 	for i in ${SHLIBDIRS}; do \
-	( set -x; /usr/ccs/bin/ld +vnocompatwarnings \
+	( set -x; /usr/ccs/bin/ld ${SHARED_LDFLAGS} \
+ 		+vnocompatwarnings \
 		-b -z +s \
 		-o lib$$i.sl.${SHLIB_MAJOR}.${SHLIB_MINOR} \
 		+h lib$$i.sl.${SHLIB_MAJOR}.${SHLIB_MINOR} \
@@ -394,7 +403,8 @@ do_hpux-shared:
 #
 do_hpux64-shared:
 	for i in ${SHLIBDIRS}; do \
-	( set -x; /usr/ccs/bin/ld -b -z \
+	( set -x; /usr/ccs/bin/ld ${SHARED_LDFLAGS} \
+ 		-b -z \
 		-o lib$$i.sl.${SHLIB_MAJOR}.${SHLIB_MINOR} \
 		+h lib$$i.sl.${SHLIB_MAJOR}.${SHLIB_MINOR} \
 		+forceload lib$$i.a -ldl -lc ) || exit 1; \
@@ -430,7 +440,7 @@ do_hpux64-shared:
 #  HP/UX-64bit: /usr/ccs/bin/ld
 #  AIX:		$(CC)
 ALLSYMSFLAG=-bnogc
-SHAREDFLAGS=-G -bE:lib$$i.exp -bM:SRE
+SHAREDFLAGS=${SHARED_LDFLAGS} -G -bE:lib$$i.exp -bM:SRE
 SHAREDCMD=$(CC)
 do_aix-shared:
 	libs='-L. ${SHLIBDEPS}'; for i in ${SHLIBDIRS}; do \