configure: consider using /usr/include/openjpeg-1.5 when searching for openjpeg

Beginning with version 1.5.1 openjpeg defaults to install its headers to
/usr/include/openjpeg-${major}.${minor} instead of /usr/include without
providing a compatibility symlink making the old test fail.
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

configure

@@ -1406,6 +1406,7 @@ HAVE_LIST="
     mprotect
     msvcrt
     nanosleep
+    openjpeg_1_5_openjpeg_h
     PeekNamedPipe
     perl
     pod2man
@@ -3843,7 +3844,9 @@ enabled libnut     && require  libnut libnut.h nut_demuxer_init -lnut
 enabled libopencore_amrnb  && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
 enabled libopencore_amrwb  && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
 enabled libopencv  && require_pkg_config opencv opencv/cxcore.h cvCreateImageHeader
-enabled libopenjpeg && require libopenjpeg openjpeg.h opj_version -lopenjpeg
+enabled libopenjpeg && { check_lib openjpeg-1.5/openjpeg.h opj_version -lopenjpeg ||
+                         check_lib openjpeg.h opj_version -lopenjpeg ||
+                         die "ERROR: libopenjpeg not found"; }
 enabled libopus    && require_pkg_config opus opus_multistream.h opus_multistream_decoder_create
 enabled libpulse && require_pkg_config libpulse-simple pulse/simple.h pa_simple_new
 enabled librtmp    && require_pkg_config librtmp librtmp/rtmp.h RTMP_Socket

libavcodec/libopenjpegdec.c

@@ -25,7 +25,6 @@
  */
 
 #define  OPJ_STATIC
-#include <openjpeg.h>
 
 #include "libavutil/common.h"
 #include "libavutil/intreadwrite.h"
@@ -35,6 +34,12 @@
 #include "avcodec.h"
 #include "thread.h"
 
+#if HAVE_OPENJPEG_1_5_OPENJPEG_H
+# include <openjpeg-1.5/openjpeg.h>
+#else
+# include <openjpeg.h>
+#endif
+
 #define JP2_SIG_TYPE    0x6A502020
 #define JP2_SIG_VALUE   0x0D0A870A
 

libavcodec/libopenjpegenc.c

@@ -25,7 +25,6 @@
  */
 
 #define  OPJ_STATIC
-#include <openjpeg.h>
 
 #include "libavutil/avassert.h"
 #include "libavutil/common.h"
@@ -35,6 +34,12 @@
 #include "avcodec.h"
 #include "internal.h"
 
+#if HAVE_OPENJPEG_1_5_OPENJPEG_H
+# include <openjpeg-1.5/openjpeg.h>
+#else
+# include <openjpeg.h>
+#endif
+
 typedef struct {
     AVClass *avclass;
     opj_image_t *image;