Hello, The following problem has been found by the GCC team: As mentioned in https://gcc.gnu.org/PR102426 , libtool -export-symbols-regex implementation on *-solaris* blindly assumes that Sun ld is used and uses -Wl,-M option: if test "$GCC" = yes; then wlarc='${wl}' _LT_TAGVAR(archive_cmds, $1)='$CC -shared ${wl}-z ${wl}text ${wl}-h ${wl}$soname -o $lib $libobjs $deplibs $compiler_flags' _LT_TAGVAR(archive_expsym_cmds, $1)='echo "{ global:" > $lib.exp~cat $export_symbols | $SED -e "s/\(.*\)/\1;/" >> $lib.exp~echo "local: *; };" >> $lib.exp~ $CC -shared ${wl}-z ${wl}text ${wl}-M ${wl}$lib.exp ${wl}-h ${wl}$soname -o $lib $libobjs $deplibs $compiler_flags~$RM $lib.exp' else in libtool.m4. But when GCC is configured to use GNU ld, that is wrong, for the if test "$with_gnu_ld" = yes case it needs to use (if supports_anon_versioning) -Wl,-version-script like e.g. on Linux. Frédéric Bérat Red Hat - Platform Tools https://www.redhat.com