Fix autoconf warnings on newer versions:

warning: AC_LANG_CONFTEST: no AC_LANG_SOURCE call detected in body

reference: http://www.flameeyes.eu/autotools-mythbuster/forwardporting/autoconf.html

diff --git a/configure.in b/configure.in
index 7c29667..9f16719 100644 (file)
--- a/configure.in
+++ b/configure.in
@@ -462,7 +462,7 @@ elif test "$use_arch" = "arm"; then
     SAVE_CFLAGS="$CFLAGS"
     CFLAGS="-mfpu=vfpv3-d16"
     AC_COMPILE_IFELSE(
-      [int foo;],
+      [AC_LANG_SOURCE([int foo;])],
       [ CFLAGS="$SAVE_CFLAGS -Wno-psabi -Wa,-march=armv7a -mtune=cortex-a9 -mfpu=vfpv3-d16 -mthumb-interwork"
         CXXFLAGS="$CXXFLAGS -Wno-psabi -Wa,-march=armv7a -mtune=cortex-a9 -mfpu=vfpv3-d16 -mthumb-interwork"
         FFMPEG_EXTRACFLAGS+=" -mtune=cortex-a9 -mfpu=vfpv3-d16"
@@ -866,8 +866,8 @@ if test "$use_external_ffmpeg" = "yes"; then
   if test "x$use_vdpau" != "xno"; then
     AC_LANG_PUSH([C++])
     AC_LINK_IFELSE(
-      [ #include <libavutil/pixfmt.h>
-        int main() { PixelFormat format = PIX_FMT_VDPAU_MPEG4; }],
+      [AC_LANG_SOURCE([ #include <libavutil/pixfmt.h>
+        int main() { PixelFormat format = PIX_FMT_VDPAU_MPEG4; }])],
       [AC_DEFINE([PIX_FMT_VDPAU_MPEG4_IN_AVUTIL], [1],
       [Whether AVUtil defines PIX_FMT_VDPAU_MPEG4.])],)
     AC_LANG_POP([C++])
@@ -973,10 +973,10 @@ if test "x$use_crystalhd" != "xno"; then
       CFLAGS="-llibcrystalhd"
       # check for new crystalhd lib
       AC_COMPILE_IFELSE(
-        [ #define __LINUX_USER__
+        [AC_LANG_SOURCE([ #define __LINUX_USER__
           #include <libcrystalhd/bc_dts_types.h>
           #include <libcrystalhd/bc_dts_defs.h>
-          PBC_INFO_CRYSTAL bCrystalInfo;],
+          PBC_INFO_CRYSTAL bCrystalInfo;])],
         [ AC_DEFINE([HAVE_LIBCRYSTALHD], [2], [Define to 2 if you have the 'New Broadcom Crystal HD' library.]) ], 
         [ AC_DEFINE([HAVE_LIBCRYSTALHD], [1], [Define to 1 if you have the 'Old Broadcom Crystal HD' library.]) ])
       CFLAGS="$SAVE_CFLAGS"

diff --git a/lib/cpluff/configure.ac b/lib/cpluff/configure.ac
index 9846a4c..854c0ca 100644 (file)
--- a/lib/cpluff/configure.ac
+++ b/lib/cpluff/configure.ac
@@ -106,7 +106,7 @@ if test "$enable_threads" != no; then
     ( test -z "$enable_threads" || test "$enable_threads" = Posix ); then
     AC_MSG_CHECKING([for Posix threads])
     AC_LINK_IFELSE(
-[#include <pthread.h>
+[AC_LANG_SOURCE([#include <pthread.h>
 
 int main(int argc, char *argv[]) {
        pthread_mutex_t mutex;
@@ -114,7 +114,7 @@ int main(int argc, char *argv[]) {
        pthread_mutex_init(&mutex, NULL);
        return 0;
 }
-], [AC_MSG_RESULT([yes])
+])], [AC_MSG_RESULT([yes])
 cp_threads=Posix], AC_MSG_RESULT([no]))
   fi
   
@@ -123,13 +123,13 @@ cp_threads=Posix], AC_MSG_RESULT([no]))
     ( test -z "$enable_threads" || test "$enable_threads" = Windows ); then
     AC_MSG_CHECKING([for Windows threads])
     AC_LINK_IFELSE(
-[#include <windows.h>
+[AC_LANG_SOURCE([#include <windows.h>
 
 int main(int argc, char *argv[]) {
   CreateMutex(NULL, FALSE, NULL);
   return 0;
 }
-], [AC_MSG_RESULT([yes])
+])], [AC_MSG_RESULT([yes])
 cp_threads=Windows], AC_MSG_RESULT([no]))
   fi