fix autotools build by reordering

git-svn-id: https://svn.xiph.org/trunk/Tremor@12649 0101bb08-14d6-0310-b084-bc0e0c8e3800

configure.in

@@ -5,6 +5,12 @@ dnl Initialization and Versioning
 dnl ------------------------------------------------
 
 AC_INIT(mdct.c)
+
+AC_CANONICAL_HOST
+AC_CANONICAL_TARGET
+
+AM_CONFIG_HEADER([config.h])
+
 AM_INIT_AUTOMAKE(libvorbisidec,1.2.0)
 
 dnl Library versioning
@@ -33,8 +39,6 @@ dnl --------------------------------------------------
 dnl Set build flags based on environment
 dnl --------------------------------------------------
 
-AC_CANONICAL_HOST
-
 dnl Set some target options
 
 cflags_save="$CFLAGS"