instead of trying to forcibly load res_agi when app_stack is loaded (even if the administrator didn't want it loaded), use GCC weak symbols to determine whether it was loaded already or not; if it was loaded, then use it.

git-svn-id: http://svn.digium.com/svn/asterisk/trunk@153709 f38db490-d61c-443f-a65b-d21fe96a405b

1 files changed, 65 insertions, 9 deletions

diff --git a/configure b/configure
index 4d141dc10..5a9a37f56 100755
--- a/configure
+++ b/configure
@@ -1,5 +1,5 @@
 #! /bin/sh
-# From configure.ac Revision: 153365 .
+# From configure.ac Revision: 153578 .
 # Guess values for system-dependent variables and create Makefiles.
 # Generated by GNU Autoconf 2.61 for asterisk 1.6.
 #
@@ -16833,7 +16833,7 @@ _ACEOF
 cat confdefs.h >>conftest.$ac_ext
 cat >>conftest.$ac_ext <<_ACEOF
 /* end confdefs.h.  */
-static void __attribute__((pure)) *test(void *muffin, ...) {}
+void __attribute__((pure)) *test(void *muffin, ...) {}
 int
 main ()
 {
@@ -16889,7 +16889,7 @@ _ACEOF
 cat confdefs.h >>conftest.$ac_ext
 cat >>conftest.$ac_ext <<_ACEOF
 /* end confdefs.h.  */
-static void __attribute__((malloc)) *test(void *muffin, ...) {}
+void __attribute__((malloc)) *test(void *muffin, ...) {}
 int
 main ()
 {
@@ -16945,7 +16945,7 @@ _ACEOF
 cat confdefs.h >>conftest.$ac_ext
 cat >>conftest.$ac_ext <<_ACEOF
 /* end confdefs.h.  */
-static void __attribute__((const)) *test(void *muffin, ...) {}
+void __attribute__((const)) *test(void *muffin, ...) {}
 int
 main ()
 {
@@ -17001,7 +17001,7 @@ _ACEOF
 cat confdefs.h >>conftest.$ac_ext
 cat >>conftest.$ac_ext <<_ACEOF
 /* end confdefs.h.  */
-static void __attribute__((unused)) *test(void *muffin, ...) {}
+void __attribute__((unused)) *test(void *muffin, ...) {}
 int
 main ()
 {
@@ -17057,7 +17057,7 @@ _ACEOF
 cat confdefs.h >>conftest.$ac_ext
 cat >>conftest.$ac_ext <<_ACEOF
 /* end confdefs.h.  */
-static void __attribute__((always_inline)) *test(void *muffin, ...) {}
+void __attribute__((always_inline)) *test(void *muffin, ...) {}
 int
 main ()
 {
@@ -17113,7 +17113,7 @@ _ACEOF
 cat confdefs.h >>conftest.$ac_ext
 cat >>conftest.$ac_ext <<_ACEOF
 /* end confdefs.h.  */
-static void __attribute__((deprecated)) *test(void *muffin, ...) {}
+void __attribute__((deprecated)) *test(void *muffin, ...) {}
 int
 main ()
 {
@@ -17169,7 +17169,7 @@ _ACEOF
 cat confdefs.h >>conftest.$ac_ext
 cat >>conftest.$ac_ext <<_ACEOF
 /* end confdefs.h.  */
-static void __attribute__((sentinel)) *test(void *muffin, ...) {}
+void __attribute__((sentinel)) *test(void *muffin, ...) {}
 int
 main ()
 {
@@ -17225,7 +17225,7 @@ _ACEOF
 cat confdefs.h >>conftest.$ac_ext
 cat >>conftest.$ac_ext <<_ACEOF
 /* end confdefs.h.  */
-static void __attribute__((warn_unused_result)) *test(void *muffin, ...) {}
+void __attribute__((warn_unused_result)) *test(void *muffin, ...) {}
 int
 main ()
 {
@@ -17271,6 +17271,62 @@ rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
 CFLAGS="$saved_CFLAGS"
 
 
+{ echo "$as_me:$LINENO: checking for compiler 'attribute weak' support" >&5
+echo $ECHO_N "checking for compiler 'attribute weak' support... $ECHO_C" >&6; }
+saved_CFLAGS="$CFLAGS"
+CFLAGS="$CFLAGS -Werror"
+cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+void __attribute__((weak)) *test(void *muffin, ...) {}
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext
+if { (ac_try="$ac_compile"
+case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5
+  (eval "$ac_compile") 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } && {
+	 test -z "$ac_c_werror_flag" ||
+	 test ! -s conftest.err
+       } && test -s conftest.$ac_objext; then
+  { echo "$as_me:$LINENO: result: yes" >&5
+echo "${ECHO_T}yes" >&6; }
+
+cat >>confdefs.h <<_ACEOF
+#define HAVE_ATTRIBUTE_weak 1
+_ACEOF
+
+else
+  echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+	{ echo "$as_me:$LINENO: result: no" >&5
+echo "${ECHO_T}no" >&6; }
+fi
+
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+
+CFLAGS="$saved_CFLAGS"
+
+
 { echo "$as_me:$LINENO: checking for -ffunction-sections support" >&5
 echo $ECHO_N "checking for -ffunction-sections support... $ECHO_C" >&6; }
 saved_CFLAGS="${CFLAGS}"