Index: configure
===================================================================
--- configure	(revision 116768)
+++ configure	(working copy)
@@ -1,5 +1,5 @@
 #! /bin/sh
-# From configure.ac Revision: 115341 .
+# From configure.ac Revision: 115579 .
 # Guess values for system-dependent variables and create Makefiles.
 # Generated by GNU Autoconf 2.61 for asterisk 1.4.
 #
@@ -14891,7 +14891,73 @@
 rm -f core conftest.err conftest.$ac_objext conftest_ipa8_conftest.oo \
       conftest$ac_exeext conftest.$ac_ext
 
+{ echo "$as_me:$LINENO: checking for inlining variadic functions" >&5
+echo $ECHO_N "checking for inlining variadic functions... $ECHO_C" >&6; }
+cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+#include <stdarg.h>
+static int foo(int fd, ...);
+static inline int foo(int fd, ...)
+{
+	int res; int foo; int bar;
+	va_list ap;
+	va_start(ap, fd);
+	foo = va_arg(ap, int);
+	bar = va_arg(ap, int);
+	res = foo + bar;
+	va_end(ap);
+	return res;
+}
+int
+main ()
+{
+return foo(0, 0, 0)
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext conftest$ac_exeext
+if { (ac_try="$ac_link"
+case "(($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_link") 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_exeext &&
+       $as_test_x conftest$ac_exeext; then
+  { echo "$as_me:$LINENO: result: yes" >&5
+echo "${ECHO_T}yes" >&6; }
 
+cat >>confdefs.h <<\_ACEOF
+#define HAVE_INLINED_VARIADIC_FUNCTIONS 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_ipa8_conftest.oo \
+      conftest$ac_exeext conftest.$ac_ext
+
+
 { echo "$as_me:$LINENO: checking for compiler 'attribute pure' support" >&5
 echo $ECHO_N "checking for compiler 'attribute pure' support... $ECHO_C" >&6; }
 saved_CFLAGS="$CFLAGS"
Index: configure.ac
===================================================================
--- configure.ac	(revision 116768)
+++ configure.ac	(working copy)
@@ -313,6 +313,26 @@
 AC_MSG_RESULT(no)
 )
 
+AC_MSG_CHECKING(for inlining variadic functions)
+AC_LINK_IFELSE(
+        AC_LANG_PROGRAM([#include <stdarg.h>
+static int foo(int fd, ...);
+static inline int foo(int fd, ...)
+{
+	int res; int foo; int bar;
+	va_list ap;
+	va_start(ap, fd);
+	foo = va_arg(ap, int);
+	bar = va_arg(ap, int);
+	res = foo + bar;
+	va_end(ap);
+	return res;
+}], [return foo(0, 0, 0)]),
+        AC_MSG_RESULT(yes)
+        AC_DEFINE([HAVE_INLINED_VARIADIC_FUNCTIONS], 1, [Define to 1 if your system allows inlining variadic functions.]),
+        AC_MSG_RESULT(no)
+)
+
 AST_GCC_ATTRIBUTE(pure)
 AST_GCC_ATTRIBUTE(malloc)
 AST_GCC_ATTRIBUTE(const)
Index: include/asterisk/utils.h
===================================================================
--- include/asterisk/utils.h	(revision 116768)
+++ include/asterisk/utils.h	(working copy)
@@ -473,7 +473,7 @@
 #define ast_asprintf(ret, fmt, ...) \
 	_ast_asprintf((ret), __FILE__, __LINE__, __PRETTY_FUNCTION__, fmt, __VA_ARGS__)
 
-AST_INLINE_API(
+AST_INLINE_VARAPI(
 int _ast_asprintf(char **ret, const char *file, int lineno, const char *func, const char *fmt, ...),
 {
 	int res;
Index: include/asterisk/autoconfig.h.in
===================================================================
--- include/asterisk/autoconfig.h.in	(revision 116768)
+++ include/asterisk/autoconfig.h.in	(working copy)
@@ -169,6 +169,9 @@
 /* Define to 1 if you have the `inet_ntoa' function. */
 #undef HAVE_INET_NTOA
 
+/* Define to 1 if your system allows inlining variadic functions. */
+#undef HAVE_INLINED_VARIADIC_FUNCTIONS
+
 /* Define to 1 if you have the <inttypes.h> header file. */
 #undef HAVE_INTTYPES_H
 
Index: include/asterisk/inline_api.h
===================================================================
--- include/asterisk/inline_api.h	(revision 116768)
+++ include/asterisk/inline_api.h	(working copy)
@@ -47,7 +47,7 @@
 
 #if !defined(AST_API_MODULE)
 #define AST_INLINE_API(hdr, body) hdr; extern inline hdr body
-#else
+#else 
 #define AST_INLINE_API(hdr, body) hdr; hdr body
 #endif
 
@@ -61,6 +61,15 @@
 
 #endif
 
+/* Some compilers support inlining variadic functions */
+#if (defined(HAVE_INLINED_VARIADIC_FUNCTIONS) && !defined(LOW_MEMORY) && !defined(AST_API_MODULE))
+#define AST_INLINE_VARAPI(hdr, body) hdr; extern inline hdr body
+#elif ((!defined(HAVE_INLINED_VARIADIC_FUNCTIONS) || defined(LOW_MEMORY)) && !defined(AST_API_MODULE))
+#define AST_INLINE_VARAPI(hdr, body) hdr;
+#else
+#define AST_INLINE_VARAPI(hdr, body) hdr; hdr body
+#endif
+
 #undef AST_API_MODULE
 
 #endif /* __ASTERISK_INLINEAPI_H */