[Mingw-cross-env-list] Error linking libavcodec

[Alex Zelid]

Hello,

I'm very new to MXE and it's my first attempt to link libraries built with MXE

I tried to compile very simple demo program to test linking with MXE libraries, here is the source code:

main.c

--------------

#include <stdlib.h>

#include <stdio.h>

#include <string.h>

#ifdef HAVE_AV_CONFIG_H

#undef HAVE_AV_CONFIG_H

#endif

#include "libavcodec/avcodec.h"

#include "libavutil/mathematics.h"

#define INBUF_SIZE 4096

#define AUDIO_INBUF_SIZE 20480

#define AUDIO_REFILL_THRESH 4096

int main(int argc, char **argv)

{

    const char *filename;

    avcodec_init();

    avcodec_register_all();

    printf("Done!\r\n");

    return 0;

}

I compile it using:

~/workspace/c_demo2_avcodec_basic$ i686-w64-mingw32.static-gcc -I/home/alex/opt/mxe/usr/i686-w64-mingw32.static/include main.c -lkernel32 -L/home/alex/opt/mxe/usr/i686-w64-mingw32.static/lib -L/home/alex/opt/mxe/usr/i686-w64-mingw32.static/lib -lusp10 -lmsimg32 -lgdi32 -lbz2 -lharfbuzz_too -lws2_32 -lole32 -lshlwapi -lavutil -lwinmm -lwsock32 -lmman -lpthread -lz -lavutil -lm -lavformat -lavutil -lmp3lame -lz -lbz2 -llzma -lswresample -lavcodec -lavutil -lavformat -lz -lm -llzma -lswresample -lmp3lame -lvorbisenc -lrtmp -lswscale

I tried different libs (add and remove) all the time I get error:

/tmp/ccLPW311.o:main.c:(.text+0xf): undefined reference to `avcodec_init'

/home/alex/opt/mxe/usr/i686-w64-mingw32.static/lib/libavcodec.a(libopencore-amr.o):libopencore-amr.c:(.text+0x72): undefined reference to `Decoder_Interface_Decode'

/home/alex/opt/mxe/usr/i686-w64-mingw32.static/lib/libavcodec.a(libopencore-amr.o):libopencore-amr.c:(.text+0xd0): undefined reference to `D_IF_exit'

/home/alex/opt/mxe/usr/i686-w64-mingw32.static/lib/libavcodec.a(libopencore-amr.o):libopencore-amr.c:(.text+0x152): undefined reference to `D_IF_decode'

/home/alex/opt/mxe/usr/i686-w64-mingw32.static/lib/libavcodec.a(libopencore-amr.o):libopencore-amr.c:(.text+0x574): undefined reference to `Encoder_Interface_Encode'

/home/alex/opt/mxe/usr/bin/i686-w64-mingw32.static-ld: /home/alex/opt/mxe/usr/i686-w64-mingw32.static/lib/libavcodec.a(libopencore-amr.o): bad reloc address 0x0 in section `.data'

/home/alex/opt/mxe/usr/bin/i686-w64-mingw32.static-ld: final link failed: Invalid operation

collect2: error: ld returned 1 exit status

What do I do wrong and how to link with libavcodec?

I use static i686-w64-mingw32 built from MXE master 7-december-2014

Thank you!

-Alex