Cannot compile with smpeg

[monreal]

I get the following when running configure on Linux:

...
checking smpeg/smpeg.h usability... no
checking smpeg/smpeg.h presence... yes
configure: WARNING: smpeg/smpeg.h: present but cannot be compiled
configure: WARNING: smpeg/smpeg.h:     check for missing prerequisite headers?
configure: WARNING: smpeg/smpeg.h: see the Autoconf documentation
configure: WARNING: smpeg/smpeg.h:     section "Present But Cannot Be Compiled"
configure: WARNING: smpeg/smpeg.h: proceeding with the compiler's result
configure: WARNING:     ## -------------------------------------------------------------------- ##
configure: WARNING:     ## Report this to https://github.com/Aleph-One-Marathon/alephone/issues ##
configure: WARNING:     ## -------------------------------------------------------------------- ##
checking for smpeg/smpeg.h... no

from configure.log:

configure:8499: checking smpeg/smpeg.h usability
configure:8499: gcc -c -g -O2  -I/usr/include/ffmpeg  -I/usr/include/SDL2 -D_REENTRANT   -I/usr/include/SDL2 -D_REENTRANT  -I/usr/include/SDL2 -D_REENTRANT   -I/usr/include/SDL2 -D_REENTRANT  -DSDL conftest.c >&5
In file included from /usr/include/smpeg/smpeg.h:29:0,
                 from conftest.c:79:
/usr/include/smpeg/MPEGfilter.h:39:40: error: unknown type name 'SDL_Overlay'; did you mean 'SDL_version'?
 typedef void (* SMPEG_FilterCallback)( SDL_Overlay * dest, SDL_Overlay * source, SDL_Rect * region, SMPEG_FilterInfo * filter_info, void * data );
                                        ^~~~~~~~~~~
                                        SDL_version
/usr/include/smpeg/MPEGfilter.h:39:60: error: unknown type name 'SDL_Overlay'; did you mean 'SDL_version'?
 typedef void (* SMPEG_FilterCallback)( SDL_Overlay * dest, SDL_Overlay * source, SDL_Rect * region, SMPEG_FilterInfo * filter_info, void * data );
                                                            ^~~~~~~~~~~
                                                            SDL_version
In file included from /usr/include/smpeg/smpeg.h:29:0,
                 from conftest.c:79:
/usr/include/smpeg/MPEGfilter.h:46:3: error: unknown type name 'SMPEG_FilterCallback'
   SMPEG_FilterCallback callback;
   ^~~~~~~~~~~~~~~~~~~~
configure:8499: $? = 1
configure: failed program was:
| /* confdefs.h */
| #define PACKAGE_NAME "Aleph One"
| #define PACKAGE_TARNAME "AlephOne"
| #define PACKAGE_VERSION "20170205"
| #define PACKAGE_STRING "Aleph One 20170205"
| #define PACKAGE_BUGREPORT "https://github.com/Aleph-One-Marathon/alephone/issues"
| #define PACKAGE_URL "https://alephone.lhowon.org/"
| #define PACKAGE "AlephOne"
| #define VERSION "20170205"
| #define TARGET_PLATFORM "linux-gnu x86_64"
...
| #include <smpeg/smpeg.h>
configure:8499: result: no
configure:8499: checking smpeg/smpeg.h presence
configure:8499: gcc -E  -I/usr/include/ffmpeg  -I/usr/include/SDL2 -D_REENTRANT   -I/usr/include/SDL2 -D_REENTRANT  -I/usr/include/SDL2 -D_REENTRANT   -I/usr/include/SDL2 -D_REENTRANT  -DSDL conftest.c
configure:8499: $? = 0
configure:8499: result: yes
configure:8499: WARNING: smpeg/smpeg.h: present but cannot be compiled
configure:8499: WARNING: smpeg/smpeg.h:     check for missing prerequisite headers?
configure:8499: WARNING: smpeg/smpeg.h: see the Autoconf documentation
configure:8499: WARNING: smpeg/smpeg.h:     section "Present But Cannot Be Compiled"
configure:8499: WARNING: smpeg/smpeg.h: proceeding with the compiler's result
configure:8499: checking for smpeg/smpeg.h
configure:8499: result: no

[carstene1ns]

(Disclaimer: I am not a developer here, just maintainer of a Linux package)

While AlephOne has been ported from SDL 1.2 to 2.0, SMPEG is only able to work with the old version, for the new version a SMPEG2 build with limited functionality has been made.
It seems the AlephOne code has not been ported to work with that version yet, so I suggest disabling SMPEG in your build for now.

[monreal]

Thanks for the reply. I already tried to disable SMPEG and ran into another problem (game seems to have problems linking on a 64 bit system).

[carstene1ns]

It works for me, can you paste some error output again?
Please use three Backticks ``` before and after to make this more readable.

[monreal]

@carstene1ns: I fixed the initial post but I guess the problem is SMPEG not working with SDL2. Maybe the build system needs to be smarter about this. I will try again later to compile and probably file another bug for my other problem. Thanks again.

[carstene1ns]

Ah sorry, I was not very clear, I meant you should post the linker error... 🙃
Yeah, the build system should not try to use smpeg for the time being IMO.
I think porting Aleph One to smpeg2 would not be too difficult either...

[monreal]

@carstene1ns: I posted the link error as issue #87