configure.ac: improve path handling in out-of-tree build

That is, handle the srcdir being given by a relative path as well as
an absolute path by using autotools provided absolute path.

diff --git a/configure.ac b/configure.ac
index 6756f0a..ab03994 100644 (file)
--- a/configure.ac
+++ b/configure.ac
@@ -379,7 +379,7 @@ else
      if test -z "$srcdir" -o "$srcdir" = .; then
        confcmd=./configure
      else
-       confcmd="$origdir"/"$ac_top_srcdir"/gst-libs/ext/libav/configure
+       confcmd="$ac_abs_top_srcdir"/gst-libs/ext/libav/configure
      fi
 
      AS_MKDIR_P(["$ac_top_build_prefix"gst-libs/ext/libav])