[Libuta-develop] Problem cross-compiling with mingw

[Sebastien S. <seb...@gm...>]

Hello,

I have a problem cross-compiling libuta.


I use this commands (cross-* comes from SDL cross-compilation page):
./cross-configure.sh --prefix=/usr/local/cross-tools/i386-mingw32msvc
--enable-win32
./cross-make.sh

While the library is built correctly, building the demos always
returns the same mistake:

creating demos/Makefile
make[2]: Leaving directory
`/home/sable/tim/dev/graphique/orig/newuta/libuta/demos'
make[2]: Entering directory
`/home/sable/tim/dev/graphique/orig/newuta/libuta/demos'
c++ -DHAVE_CONFIG_H -I. -I. -I.. -I../uta   -Wall
-I/usr/local/cross-tools/i386-mingw32msvc/include
-I/usr/local/cross-tools/i386-mingw32msvc/include/SDL -Dmain=SDL_main
-I/usr/local/cross-tools/i386-mingw32msvc/lib/sigc++/include
-I/usr/local/cross-tools/i386-mingw32msvc/include   -c simple.cc
/bin/sh ../libtool --mode=link c++    -o simple.exe  simple.o
../uta/libuta.la  -lttf -lSDL_mixer -lpng -lz  -lstdc++
-L/usr/local/cross-tools/i3386-mingw32msvc/lib -lmingw32 -lSDLmain -lSDL
-mwindows -L/usr/local/cross-tools/i386-mingw32msvc/lib -lsigc -lsmpeg
mkdir .libs
c++ -o simple.exe simple.o ../uta/.libs/libuta.a -lttf -lSDL_mixer -lpng -lz
-lstdc++ -L/usr/local/cross-tools/i386-mingw32msvc/lib -lmingw32 -lSDLmain
-lSDL -lsigc -lsmpeg -lttf -lSDL_mixer -lpng -lz -lstdc++
-L/usr/local/cross-tools/i386-mingw32msvc/lib -lmingw32 -lSDLmain -lSDL
-mwindows -L/usr/local/cross-tools/i386-mingw32msvc/lib -lsigc -lsmpeg
../uta/.libs/libuta.a(surface_io.o)(.text+0x2dc):surface_io.cc: undefined
reference to `png_init_io'
../uta/.libs/libuta.a(surface_io.o)(.text+0xa84):surface_io.cc: undefined
reference to `png_init_io'
make[2]: *** [simple.exe] Erreur 1
make[2]: Leaving directory
`/home/sable/tim/dev/graphique/orig/newuta/libuta/demos'
make[1]: *** [all-recursive] Erreur 1
make[1]: Leaving directory
`/home/sable/tim/dev/graphique/orig/newuta/libuta'
make: *** [all-recursive-am] Erreur 2

the libpng is the one provided on the SDL cross-compiling page, so the
problem probably does not come from there.
About the same mistake happen when trying to produce a dll of libuta.

Any help would be appreciated.
By the way, is there a devel version of libuta somewhere, all the
different tags on sourceforge seem to correspond to the same source
code... I'd like to make a few modifications to the library so I
prefer to work on the latest version.

Thanks

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