From 10df60039322b3903e62b001971c195d5ce48943 Mon Sep 17 00:00:00 2001
From: Anthony Minessale <anthm@freeswitch.org>
Date: Fri, 15 Jan 2016 13:14:07 -0600
Subject: [PATCH] FS-8736 #resolve [Missing MEMMOVE macro in spandsp autoconf]
---
libs/spandsp/configure.ac | 2 ++
libs/spandsp/m4/memmove.m4 | 27 +++++++++++++++++++++++++++
2 files changed, 29 insertions(+)
create mode 100644 libs/spandsp/m4/memmove.m4
diff --git a/libs/spandsp/configure.ac b/libs/spandsp/configure.ac
index 16d6d247a4..4ec8952558 100644
--- a/libs/spandsp/configure.ac
+++ b/libs/spandsp/configure.ac
@@ -37,6 +37,7 @@ m4_include(m4/ax_c99_features.m4)
m4_include(m4/ax_check_export_capability.m4)
m4_include(m4/ax_check_arm_neon.m4)
m4_include(m4/ax_func_aligned_alloc.m4)
+m4_include(m4/memmove.m4)
AC_CONFIG_SRCDIR([src/tone_generate.c])
AC_CONFIG_AUX_DIR([config])
@@ -152,6 +153,7 @@ AC_FUNC_ERROR_AT_LINE
AC_FUNC_VPRINTF
AC_FUNC_MEMCMP
AC_FUNC_MEMMOVE
+
if test "${ax_cv_c_compiler_vendor}" = "gnu"
then
AC_FUNC_REALLOC
diff --git a/libs/spandsp/m4/memmove.m4 b/libs/spandsp/m4/memmove.m4
new file mode 100644
index 0000000000..f2301a07db
--- /dev/null
+++ b/libs/spandsp/m4/memmove.m4
@@ -0,0 +1,27 @@
+AC_DEFUN([AC_FUNC_MEMMOVE],
+[AC_CHECK_FUNCS(memmove)
+AC_MSG_CHECKING(for working memmove)
+AC_CACHE_VAL(ac_cv_have_working_memmove,
+[AC_TRY_RUN(
+[#include <stdio.h>
+
+int main(void)
+{
+ char buf[10];
+ strcpy (buf, "01234567");
+ memmove (buf, buf + 2, 3);
+ if (strcmp (buf, "23434567"))
+ exit (1);
+ strcpy (buf, "01234567");
+ memmove (buf + 2, buf, 3);
+ if (strcmp (buf, "01012567"))
+ exit (1);
+ exit (0);
+}], ac_cv_have_working_memmove=yes, ac_cv_have_working_memmove=no, ac_cv_have_working_memmove=cross)])
+AC_MSG_RESULT([$ac_cv_have_working_memmove])
+if test x$ac_cv_have_working_memmove != "xyes"; then
+ AC_LIBOBJ(memmove)
+ AC_MSG_WARN([Replacing missing/broken memmove.])
+ AC_DEFINE(PREFER_PORTABLE_MEMMOVE, 1, "enable replacement memmove if system memmove is broken or missing")
+fi])
+