compile error: expected ‘;’ before ‘*’ token

osc~ · 12-05-2008, 08:43 AM

hi i am trying to compile a program, but it gives this output:

Code:

In file included from ../src/include/impl_layers.h:48,
                 from freej.cpp:38:
../src/include/video_layer.h:34: error: ISO C++ forbids declaration of ‘AVPicture’ with no type
../src/include/video_layer.h:34: error: expected ‘;’ before ‘*’ token
../src/include/video_layer.h:46: error: ISO C++ forbids declaration of ‘AVCodec’ with no type
../src/include/video_layer.h:46: error: expected ‘;’ before ‘*’ token
../src/include/video_layer.h:47: error: ISO C++ forbids declaration of ‘AVInputFormat’ with no type
../src/include/video_layer.h:47: error: expected ‘;’ before ‘*’ token
../src/include/video_layer.h:48: error: ISO C++ forbids declaration of ‘AVFormatContext’ with no type
../src/include/video_layer.h:48: error: expected ‘;’ before ‘*’ token
../src/include/video_layer.h:49: error: ISO C++ forbids declaration of ‘AVStream’ with no type
../src/include/video_layer.h:49: error: expected ‘;’ before ‘*’ token
../src/include/video_layer.h:50: error: ISO C++ forbids declaration of ‘AVPicture’ with no type
../src/include/video_layer.h:50: error: expected ‘;’ before ‘*’ token
../src/include/video_layer.h:51: error: ‘AVPacket’ does not name a type
../src/include/video_layer.h:52: error: ISO C++ forbids declaration of ‘AVCodecContext’ with no type
../src/include/video_layer.h:52: error: expected ‘;’ before ‘*’ token
../src/include/video_layer.h:53: error: ISO C++ forbids declaration of ‘AVCodec’ with no type
../src/include/video_layer.h:53: error: expected ‘;’ before ‘*’ token
../src/include/video_layer.h:54: error: ‘AVFrame’ does not name a type
../src/include/video_layer.h:100: error: ‘AVPicture’ has not been declared
../src/include/video_layer.h:103: error: ‘AVPicture’ has not been declared
../src/include/video_layer.h:104: error: ‘AVPicture’ has not been declared
make[3]: ** [freej.o] Erro 1
make[3]: Saindo do diretório `/home/livre/Desktop/AUR/freej/src/freej-0.10/src'
make[2]: ** [all-recursive] Erro 1
make[2]: Saindo do diretório `/home/livre/Desktop/AUR/freej/src/freej-0.10/src'
make[1]: ** [all-recursive] Erro 1
make[1]: Saindo do diretório `/home/livre/Desktop/AUR/freej/src/freej-0.10'
make: ** [all] Erro 2
==> ERRO: Compilação Falhou.
    Abortando...

it is probably a gcc version problem, but i could make a patch. i just need to know what to type.

cheers

weibullguy · 12-05-2008, 11:05 AM

Those undeclared AV's are defined by ffmpeg. Do you have ffmpeg installed including the development files? If so, it may be too new. ffmpeg used to install its headers in /usr/include/ffmpeg, but that has changed to /usr/include/libavcodec. I don't know when it changed, I only know that I had problems recently trying to build a package against ffmpeg.

Looking at the freej file video_layer.h I see the following

Code:

#include <ffmpeg/avcodec.h>
#include <ffmpeg/avformat.h>

If I'm remembering the chronological order of the ffmpeg header paths, it looks like freej hasn't been updated to reflect the newer ffmpeg paths.

knudfl · 12-05-2008, 11:47 AM

If you look at the lines, where the errors start,
you will see : missing avcodec.h, avformat.h,
swscale.h

It might be solved by running the 'autogen.sh'
to make a better 'configure'
EDIT. : No, 'autogen.sh' didn't solve that
problem, but solved issues appearing later.

Lines 25,26,28 in freej-x.x/src/include/video_layer.h
can be edited to

#include <libavcodec/avcodec.h>
#include <libavformat/avformat.h>
#include <libswscale/swscale.h>

All depending on your ffmpeg, could also be
like #2, by weibullguy.

You will also need fftw-3 and swig, which are
not asked for in 'configure'

The executeable 'freej' will look for libs in
/usr/lib only, so it might be an idea to have
"--prefix=/usr"

The above was made on Slackware 12.1
....

weibullguy · 12-05-2008, 03:02 PM

Quote:

Originally Posted by knudfl

If you look at the lines, where the errors start,
you will see : missing avcodec.h, avformat.h,
swscale.h

You must have actually tried to build freej because I don't see those in the OP's post. Or am I completely losing it?

Quote:

Originally Posted by knudfl

The executeable 'freej' will look for libs in
/usr/lib only, so it might be an idea to have
--prefix=/usr

Passing --prefix=/usr to the configure script sets the prefix that freej will be installed in, not the prefix for freej to look for libraries when it is linking.

knudfl · 12-05-2008, 03:46 PM

weibullguy : add.1 Yes, I have build freej on slack 12.1.

add.2 If freej is build for /usr/local/, default prefix,
it will refuse to see its own lib = 'libfreej.so.0'

So I just linked it to /usr/lib
....

weibullguy · 12-06-2008, 06:36 AM

Do you have /usr/local/lib in your /etc/ld.so.conf? If so, freej should find its own library once ldconfig is executed (usually executed by the install target, but not always). If not, add it and execute ldconfig, then freej should pick up its library in /usr/local. However, there's nothing wrong with putting it in /usr.

knudfl · 12-07-2008, 05:04 AM

Quote:

/usr/local/lib in your /etc/ld.so.conf?

No, sorry, weibullguy, that's not the issue,
have seen it a couple of times over the last
6 years, had one yesterday too, 'midori' on
Debian Lenny.

/usr/local/lib is in ld.so.conf on both OS.
....

osc~ · 12-07-2008, 04:52 PM

i did as knudfl recomended. but now i reached to this stage.
as far as i know img_convert is deprecated and now it uses swscale.

Code:

video_layer.o: In function `VideoLayer::feed()':
video_layer.cpp:(.text+0x9a9): undefined reference to `img_convert'
collect2: ld returned 1 exit status
make[3]: ** [freej] Erro 1
make[3]: Saindo do diretório `/home/livre/Desktop/AUR/freej/src/freej-0.10/src'
make[2]: ** [all-recursive] Erro 1
make[2]: Saindo do diretório `/home/livre/Desktop/AUR/freej/src/freej-0.10/src'
make[1]: ** [all-recursive] Erro 1
make[1]: Saindo do diretório `/home/livre/Desktop/AUR/freej/src/freej-0.10'
make: ** [all] Erro 2
==> ERRO: Compilação Falhou.
    Abortando...

so, how do i go about it now???

thanks, cheers!!

knudfl · 12-07-2008, 06:49 PM

1) Did you do './autogen.sh' ??

2) Which gcc is used ? '4.3.x' ?
Can be found with 'gcc -v'

osc~ · 12-08-2008, 04:57 AM

yes i did use ./autogen and ./configure --prefix=/usr

gcc -v

Code:

Using built-in specs.
Target: i686-pc-linux-gnu
Configured with: ../configure --prefix=/usr --enable-shared --enable-languages=c,c++,fortran,objc,obj-c++,treelang --enable-threads=posix --mandir=/usr/share/man --infodir=/usr/share/info --enable-__cxa_atexit --disable-multilib --libdir=/usr/lib --libexecdir=/usr/lib --enable-clocale=gnu --disable-libstdcxx-pch --with-tune=generic
Thread model: posix
gcc version 4.3.2 (GCC)

knudfl · 12-08-2008, 12:45 PM

I'd guess, it's a gcc 4.3 problem, or more correct : the
freej code has not yet been fixed, to be used with 4.3.x

Suggest : Set up 'gcc-4.2.3' and 'g++-4.2.3' ,
then use something like
'CC=gcc-4.2.3 CXX=g++-4.2.3 ./configure --prefix=/usr'
to configure freej. (no problem having more than 1 compiler)
Replace with actual names, ( see 'ls /usr/bin | grep g++' ,
etc. ) to use the "new" compiler.

Don't know if it is necessary, but you can do likewise
with 'make' : 'CC=gcc-4.2.3 CXX=g++-4.2.3 make'
....

osc~ · 12-09-2008, 07:53 AM

Quote:

Originally Posted by knudfl

I'd guess, it's a gcc 4.3 problem, or more correct : the
freej code has not yet been fixed, to be used with 4.3.x

Suggest : Set up 'gcc-4.2.3' and 'g++-4.2.3' ,
then use something like
'CC=gcc-4.2.3 CXX=g++-4.2.3 ./configure --prefix=/usr'
to configure freej. (no problem having more than 1 compiler)
Replace with actual names, ( see 'ls /usr/bin | grep g++' ,
etc. ) to use the "new" compiler.

Don't know if it is necessary, but you can do likewise
with 'make' : 'CC=gcc-4.2.3 CXX=g++-4.2.3 make'
....

hmm seems to be a bit complicated for me.

but couldnt it be just a problem with ffmpeg's img_convert?

thanks for the help

mjsurette · 12-10-2009, 11:18 AM

Quote:

Originally Posted by osc~

i did as knudfl recomended. but now i reached to this stage.
as far as i know img_convert is deprecated and now it uses swscale.

Code:

video_layer.o: In function `VideoLayer::feed()':
video_layer.cpp:(.text+0x9a9): undefined reference to `img_convert'
collect2: ld returned 1 exit status
make[3]: ** [freej] Erro 1
make[3]: Saindo do diretório `/home/livre/Desktop/AUR/freej/src/freej-0.10/src'
make[2]: ** [all-recursive] Erro 1
make[2]: Saindo do diretório `/home/livre/Desktop/AUR/freej/src/freej-0.10/src'
make[1]: ** [all-recursive] Erro 1
make[1]: Saindo do diretório `/home/livre/Desktop/AUR/freej/src/freej-0.10'
make: ** [all] Erro 2
==> ERRO: Compilação Falhou.
    Abortando...

so, how do i go about it now???

thanks, cheers!!

An undefined reference is a linker error. It can't find the library or object file which contains 'img_convert'

Check your library locations in your './configure'

Mike