Make shared libraries resolve global symbols within themselves first.

Currently only on GNUish linkers...
Submitted by Steven Bade <sbade@austin.ibm.com>

diff --git a/Makefile.org b/Makefile.org
index 30370c8e7360c64563c945687701d63e8dbdf366..ec0de4fe1282d1f99ba947af24283687c7c33528 100644 (file)
--- a/Makefile.org
+++ b/Makefile.org
@@ -262,6 +262,7 @@ do_gnu-shared:
        ( set -x; ${CC} ${SHARED_LDFLAGS} \
                -shared -o lib$$i.so.${SHLIB_MAJOR}.${SHLIB_MINOR} \
                -Wl,-soname=lib$$i.so.${SHLIB_MAJOR}.${SHLIB_MINOR} \
+               -Wl,-Bsymbolic \
                -Wl,--whole-archive lib$$i.a \
                -Wl,--no-whole-archive $$libs ${EX_LIBS} -lc ) || exit 1; \
        libs="$$libs -l$$i"; \
@@ -288,6 +289,7 @@ do_darwin-shared:
 do_cygwin-shared:
        libs='-L. ${SHLIBDEPS}'; for i in ${SHLIBDIRS}; do \
        ( set -x; ${CC}  -shared -o cyg$$i.dll \
+               -Wl,-Bsymbolic \
                -Wl,--whole-archive lib$$i.a \
                -Wl,--out-implib,lib$$i.dll.a \
                -Wl,--no-whole-archive $$libs ) || exit 1; \