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-rw-r--r--source3/Makefile.in6
-rw-r--r--source3/configure.in30
2 files changed, 30 insertions, 6 deletions
diff --git a/source3/Makefile.in b/source3/Makefile.in
index 399d01f793..6ce47695df 100644
--- a/source3/Makefile.in
+++ b/source3/Makefile.in
@@ -45,11 +45,11 @@ CPPFLAGS=-DHAVE_CONFIG_H @CPPFLAGS@
EXEEXT=@EXEEXT@
AR=@AR@
-LDSHFLAGS=@LDSHFLAGS@ @RELRO_LDFLAGS@ @LDFLAGS@
-LDPLUGINFLAGS=@LDSHFLAGS@ @RELRO_LDFLAGS@ @LDFLAGS@
+LDSHFLAGS=@LDSHFLAGS@ @RELRO_LDFLAGS@ @LDFLAGS@ @LDSHFLAGS_Z_DEFS@
+LDPLUGINFLAGS=@LDSHFLAGS@ @RELRO_LDFLAGS@ @LDFLAGS@ @LDSHFLAGS_Z_NODEFS@
LDFLAGS=@PIE_LDFLAGS@ @RELRO_LDFLAGS@ @LDFLAGS@
-WINBIND_NSS_LDSHFLAGS=@WINBIND_NSS_LDSHFLAGS@ @LDFLAGS@
+WINBIND_NSS_LDSHFLAGS=@WINBIND_NSS_LDSHFLAGS@ @LDFLAGS@ @LDSHFLAGS_Z_DEFS@
AWK=@AWK@
PICFLAG=@PICFLAG@
DYNEXP=@DYNEXP@
diff --git a/source3/configure.in b/source3/configure.in
index 69596df46c..80a347cd4e 100644
--- a/source3/configure.in
+++ b/source3/configure.in
@@ -377,6 +377,10 @@ esac
DYNEXP=
AC_SUBST(DYNEXP)
+LDSHFLAGS_Z_DEFS=
+AC_SUBST(LDSHFLAGS_Z_DEFS)
+LDSHFLAGS_Z_NODEFS=
+AC_SUBST(LDSHFLAGS_Z_NODEFS)
dnl Add modules that have to be built by default here
dnl These have to be built static:
@@ -1557,10 +1561,9 @@ DSO_EXPORTS=""
AC_DEFINE(LINUX,1,[Whether the host os is linux]) ;;
esac
BLDSHARED="true"
+ LDSHFLAGS="-shared -Wl,-Bsymbolic"
if test "${ac_cv_gnu_ld_no_default_allow_shlib_undefined}" = "yes"; then
- LDSHFLAGS="-shared -Wl,-Bsymbolic -Wl,--allow-shlib-undefined"
- else
- LDSHFLAGS="-shared -Wl,-Bsymbolic"
+ LDSHFLAGS_Z_NODEFS="-Wl,--allow-shlib-undefined"
fi
DYNEXP="-Wl,--export-dynamic"
PICFLAG="-fPIC"
@@ -1772,6 +1775,27 @@ if test x"${ac_cv_prog_gnu_ld}" = x"yes"; then
LDFLAGS="$LD_AS_NEEDED_FLAG $saved_ldflags"
fi
+# for historical reasons almost all linkers don't complain about unresolved
+# symbols in shared libs. Except for the internal samba modules we want to get
+# errors when we produce a shared lib with unresolved symbols. On some
+# platforms unresolved symbols might be intended, so we might have to add
+# platform specific exceptions here.
+
+for flags in "-Wl,-z,defs" "-error_unresolved" "-Wl,-error_unresolved" ; do
+ saved_ldflags="$LDFLAGS"
+ AC_MSG_CHECKING([if $flags works])
+ LDFLAGS="$flags $saved_ldflags"
+ AC_TRY_LINK([],[],
+ [AC_MSG_RESULT([yes])
+ LDSHFLAGS_Z_DEFS=$flags
+ ldshflags_z_defs_found=yes],
+ AC_MSG_RESULT([no]))
+ LDFLAGS=$saved_ldflags
+ test x"$ldshflags_z_defs_found" = xyes && break
+done
+
+AC_MSG_CHECKING([LDSHFLAGS_Z_DEFS])
+AC_MSG_RESULT([$LDSHFLAGS_Z_DEFS])
AC_MSG_CHECKING([LDFLAGS])
AC_MSG_RESULT([$LDFLAGS])
AC_MSG_CHECKING([DYNEXP])