More strict detection for swscale. Patch by ILEoo and ALexis Ballier

diff --git a/configure.ac b/configure.ac
index 023833d097d1f9e74e567f662d446d1a938846d8..8ae3a4f38dd6c678f24ae7098a0ebf9008e27df5 100644 (file)
--- a/configure.ac
+++ b/configure.ac
@@ -3080,7 +3080,8 @@ dnl Trying with pkg-config
      PKG_CHECK_MODULES(SWSCALE, libswscale,[
        VLC_ADD_CFLAGS([ffmpeg],[${SWSCALE_CFLAGS}]) 
        VLC_ADD_LDFLAGS([ffmpeg],[${SWSCALE_LIBS}]) 
-       AC_CHECK_HEADERS(ffmpeg/swscale.h)
+       AC_CHECK_LIB(swscale, sws_getContext,
+         [AC_CHECK_HEADERS(ffmpeg/swscale.h)],[])
        ],[ true ])
      VLC_RESTORE_FLAGS
     ],[