core/openldap/symbol_versions.patch

Submitted By:            Armin K. <krejzi at email dot com>
Date:                    2012-04-06
Initial Package Version: 2.4.30
Upstream Status:         Unknown
Origin:                  Debian
Description:             This patch enables symbol versioning in ldap libraries. Without this
                         patch some applications might generate a warning about missing symbol
                         versions.

--- openldap.orig/build/openldap.m4	2012-02-29 18:37:09.000000000 +0100
+++ openldap/build/openldap.m4	2012-04-01 17:29:50.973881411 +0200
@@ -1136,3 +1136,54 @@
 #endif
 	], [ol_cv_ssl_crl_compat=yes], [ol_cv_ssl_crl_compat=no])])
 ])
+
+dnl ====================================================================
+dnl check for symbol versioning support
+AC_DEFUN([OL_SYMBOL_VERSIONING],
+[AC_CACHE_CHECK([for .symver assembler directive],
+	[ol_cv_asm_symver_directive],[
+cat > conftest.s <<EOF
+${libc_cv_dot_text}
+_sym:
+.symver _sym,sym@VERS
+EOF
+if ${CC-cc} -c $ASFLAGS conftest.s 1>&AS_MESSAGE_LOG_FD 2>&AS_MESSAGE_LOG_FD; then
+  ol_cv_asm_symver_directive=yes
+else
+  ol_cv_asm_symver_directive=no
+fi
+rm -f conftest*])
+AC_CACHE_CHECK([for ld --version-script],
+	[ol_cv_ld_version_script_option],[
+if test $ol_cv_asm_symver_directive = yes; then
+  cat > conftest.s <<EOF
+${libc_cv_dot_text}
+_sym:
+.symver _sym,sym@VERS
+EOF
+  cat > conftest.map <<EOF
+VERS_1 {
+	global: sym;
+};
+
+VERS_2 {
+	global: sym;
+} VERS_1;
+EOF
+  if ${CC-cc} -c $ASFLAGS conftest.s 1>&AS_MESSAGE_LOG_FD 2>&AS_MESSAGE_LOG_FD; then
+    if AC_TRY_COMMAND([${CC-cc} $CFLAGS $LDFLAGS -shared
+                                                 -o conftest.so conftest.o
+                                                 -Wl,--version-script,conftest.map
+                       1>&AS_MESSAGE_LOG_FD]);
+    then
+      ol_cv_ld_version_script_option=yes
+    else
+      ol_cv_ld_version_script_option=no
+    fi
+  else
+    ol_cv_ld_version_script_option=no
+  fi
+else
+  ol_cv_ld_version_script_option=no
+fi
+rm -f conftest*])])
--- openldap.orig/build/top.mk	2012-02-29 18:37:09.000000000 +0100
+++ openldap/build/top.mk	2012-04-01 17:29:50.972881390 +0200
@@ -104,6 +104,9 @@
 # LINK_LIBS referenced in library and module link commands.
 LINK_LIBS = $(MOD_LIBS) $(@PLAT@_LINK_LIBS)
 
+# option to pass to $(CC) to support library symbol versioning, if any
+VERSION_OPTION = @VERSION_OPTION@
+
 LTSTATIC = @LTSTATIC@
 
 LTLINK   = $(LIBTOOL) --mode=link \
@@ -113,7 +116,7 @@
 	$(CC) $(LT_CFLAGS) $(LT_CPPFLAGS) $(LIB_DEFS) -c
 
 LTLINK_LIB = $(LIBTOOL) $(LTONLY_LIB) --mode=link \
-	$(CC) $(LT_CFLAGS) $(LDFLAGS) $(LTFLAGS_LIB)
+	$(CC) $(LT_CFLAGS) $(LDFLAGS) $(LTFLAGS_LIB) $(VERSION_FLAGS)
 
 LTCOMPILE_MOD = $(LIBTOOL) $(LTONLY_MOD) --mode=compile \
 	$(CC) $(LT_CFLAGS) $(LT_CPPFLAGS) $(MOD_DEFS) -c
--- openldap.orig/configure.in	2012-02-29 18:37:09.000000000 +0100
+++ openldap/configure.in	2012-04-01 17:29:50.981881580 +0200
@@ -1907,6 +1907,13 @@
 fi
 AC_SUBST(LTSTATIC)dnl
 
+VERSION_OPTION=""
+OL_SYMBOL_VERSIONING
+if test $ol_cv_ld_version_script_option = yes ; then
+  VERSION_OPTION="-Wl,--version-script="
+fi
+AC_SUBST(VERSION_OPTION)
+
 dnl ----------------------------------------------------------------
 if test $ol_enable_wrappers != no ; then
 	AC_CHECK_HEADERS(tcpd.h,[
--- openldap.orig/libraries/liblber/liblber.map	1970-01-01 01:00:00.000000000 +0100
+++ openldap/libraries/liblber/liblber.map	2012-04-01 17:29:50.983881622 +0200
@@ -0,0 +1,8 @@
+OPENLDAP_2.4_2 {
+  global:
+    ber_*;
+    der_alloc;
+    lutil_*;
+  local:
+    *;
+};
--- openldap.orig/libraries/liblber/Makefile.in	2012-04-01 17:27:12.042526978 +0200
+++ openldap/libraries/liblber/Makefile.in	2012-04-01 17:29:50.982881601 +0200
@@ -38,6 +38,9 @@
 XXLIBS = 
 NT_LINK_LIBS = $(AC_LIBS)
 UNIX_LINK_LIBS = $(AC_LIBS)
+ifneq (,$(VERSION_OPTION))
+  VERSION_FLAGS = "$(VERSION_OPTION)$(srcdir)/liblber.map"
+endif
 
 dtest:    $(XLIBS) dtest.o
 	$(LTLINK) -o $@ dtest.o $(LIBS)
--- openldap.orig/libraries/libldap/libldap.map	1970-01-01 01:00:00.000000000 +0100
+++ openldap/libraries/libldap/libldap.map	2012-04-01 17:29:50.981881580 +0200
@@ -0,0 +1,7 @@
+OPENLDAP_2.4_2 {
+  global:
+    ldap_*;
+    ldif_*;
+  local:
+    *;
+};
--- openldap.orig/libraries/libldap/Makefile.in	2012-04-01 17:27:12.043527000 +0200
+++ openldap/libraries/libldap/Makefile.in	2012-04-01 17:29:50.982881601 +0200
@@ -52,6 +52,9 @@
 XXLIBS = $(SECURITY_LIBS) $(LUTIL_LIBS)
 NT_LINK_LIBS = $(LDAP_LIBLBER_LA) $(AC_LIBS) $(SECURITY_LIBS)
 UNIX_LINK_LIBS = $(LDAP_LIBLBER_LA) $(AC_LIBS) $(SECURITY_LIBS)
+ifneq (,$(VERSION_OPTION))
+  VERSION_FLAGS = $(VERSION_OPTION)$(srcdir)/libldap.map
+endif
 
 apitest:	$(XLIBS) apitest.o
 	$(LTLINK) -o $@ apitest.o $(LIBS)
--- openldap.orig/libraries/libldap_r/Makefile.in	2012-04-01 17:27:12.043527000 +0200
+++ openldap/libraries/libldap_r/Makefile.in	2012-04-01 17:29:50.971881369 +0200
@@ -61,6 +61,9 @@
 XXXLIBS = $(LTHREAD_LIBS)
 NT_LINK_LIBS = $(LDAP_LIBLBER_LA) $(AC_LIBS) $(SECURITY_LIBS)
 UNIX_LINK_LIBS = $(LDAP_LIBLBER_LA) $(AC_LIBS) $(SECURITY_LIBS) $(LTHREAD_LIBS)
+ifneq (,$(VERSION_OPTION))
+  VERSION_FLAGS = "$(VERSION_OPTION)$(XXDIR)/libldap.map"
+endif
 
 .links : Makefile
 	@for i in $(XXSRCS); do \