Hi,

I'm not able to link my program with oggvorbis library. I get link errors. What is strange, when I remove needed .a files linking ends successfuly, but program ends with runtime error.
I use Dev-C++ 4.9.9.1, DirectX9c and OggVorbis devpaks.

Did anybody use OggVorbis devpak without this problem?
Marcin


g++.exe main.o FSound.o -o "oggt1.exe" -L"E:/Dev-Cpp/lib" -logg -lvorbis -lvorbisenc -lvorbisfile -ld3d9 -ld3dx9 -ldsound -ldxguid -luuid -lgdi32 -lole32 -lwinmm

Warning: .drectve `%.*s' unrecognized
E:/Dev-Cpp/lib/libvorbisfile.a(vorbisfile.o.b)(.text+0xcd):vorbisfile.c: undefined reference to `ogg_page_serialno'
E:/Dev-Cpp/lib/libvorbisfile.a(vorbisfile.o.b)(.text+0x16b):vorbisfile.c: undefined reference to `ogg_page_serialno'
E:/Dev-Cpp/lib/libvorbisfile.a(vorbisfile.o.b)(.text+0x23e):vorbisfile.c: undefined reference to `ogg_sync_reset'
E:/Dev-Cpp/lib/libvorbisfile.a(vorbisfile.o.b)(.text+0x29b):vorbisfile.c: undefined reference to `ogg_sync_reset'
E:/Dev-Cpp/lib/libvorbisfile.a(vorbisfile.o.b)(.text+0x2fb):vorbisfile.c: undefined reference to `vorbis_block_clear'
E:/Dev-Cpp/lib/libvorbisfile.a(vorbisfile.o.b)(.text+0x309):vorbisfile.c: undefined reference to `vorbis_dsp_clear'
E:/Dev-Cpp/lib/libvorbisfile.a(vorbisfile.o.b)(.text+0x314):vorbisfile.c: undefined reference to `ogg_stream_clear'
(...)
make.exe: *** [oggt1.exe] Error 1

Yep I think I have the solution. When including the header files for ogg vorbis sdk don't include the subdirs with two backslashes as shown here
#include <vorbis\\codec.h>
but with one forward slash
#include <vorbis/codec.h>
This known issue prevents using c-style in MinGW and the programm doesn't crash. As for linking I couldn't find any problem. It works for me great with two examples made from scratch. Static linking and dynamic linking work either well.

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Thanks for reply.

I don't use \\.
I tried with libogg.a against -logg as well, but without any effect. I think dev-cpp sees libs (I don't have "no such file or directory" error).
Could you send me your project configuration or some minimal file using oggvorbis? (I have problem even with linking vorbisfile_example.c) and I indeed don't know why.
Did you use the same MinGW version (this from Dev-c++ 4.9.9.0/1)?

in your linker pannel within the project settings, you should link with -ogg -vorbis etc. and not with relative paths.

I have -logg, -lvorbis, etc. I tried with -ogg, ... but it didn't work (the same errors). But I think -logg is better choice, because it links with libogg.a (lib compatible with mingw), not with ogg.lib, but I can be wrong.

Btw, do you have some simple project which work with your dev-cpp? I'm not able to link anything

In your linker options, put -lvorbis before -logg. I have the following in my linker options: -lvorbis -lvorbisfile -logg With this I can compile the
decoder_example.c program. If I put -logg first I fail with linker errors also.

Hope this helps,

Dale

Quote

---

Anonymous :
In your linker options, put -lvorbis before -logg. I have the following in my linker options: -lvorbis -lvorbisfile -logg With this I can compile the
decoder_example.c program. If I put -logg first I fail with linker errors also.
Hope this helps,

---

Glad this was some help to you. The order of the library files has something to do with forward reference when linking. Any time I have odd linker problems I will play with the order of the library files. This usually takes care of it.

You may want to download the example code at http://www.wischik.com/scr/holsavers.html
This is a really good screen saver site. One of the screen saver examples plays ogg files. It looks like a really good learning tool.

Dale

Interesting acticle and examples.

Thanks again
Marcin