Allegro 4.2 Mingw msys installation.

no-reply@allegro.cc (Tamamo) — Mon, 06 Jun 2016 23:10:30 +0000

I use a MinGW (with gcc version 4.9.3) MSYS environment and am having some trouble building allegro 4.2 from source. Here is what I have done to get things ready for building.

set environment variable MINGDIR=c:\MinGW
added export MINGDIR=/mingw to my 'c:\msys\etc\profile' file.
added allegro to the fstab
then when i launch MSYS and type

#SelectExpand
 1cd /allegro
 2./fix.sh mingw
 3make depend
 4make

make returns this

#SelectExpand
  1Compiling Allegro for MingGW32, optimised, Please Wait...
  2Testing assembler capabilities...
  3make init-asmtests
  4make[1]: Entering directory `/allegro'
  5echo #define ALLEGRO_GENERATED_BY_MAKEFILE_TST > obj\mingw32\asmcapa.h
  6
  7make[1]: Leaving directory `/allegro'
  8make test-mmx
  9make[1]: Entering directory `/allegro'
 10as --defsym ASMCAPA_MMX_TEST=1 -0 obj/mingw32/asmcapa.o src/misc/asmcapa.s
 11echo #define ALLEGRO_MMX >> obj\mingw32\asmcapa.h
 12
 13make[1]: Leaving directory `/allegro'
 14make test-sse
 15make[1]: Entering directory `/allegro'
 16as -defsym ASMCAPA_SSE_TEST=1 -o obj/mingw32/asmcapa.h src/misc/asmcapa.s
 17echo #Define ALLEGRO_SSE >> obj\mingw32\asmcapa.h
 18
 19make[1]: Leaving directory `/allegro'
 20gcc -DALLEGRO_SRC -DALLEGRO_LIB_BUILD -Wall -Wno-unused -mtune=i586 -02 -funroll
 21-loops -ffast-math -fomit-frame-pointer -I. -I./include obj/mingw32/alleg/poly3d.o -c src/poly3d.c
 22src/poly3d.c:32:35: fatal error: obj/mingw32/asmcapa.h: No such file or directory
 23    #include ALLEGRO_ASMCAPA_HEADER
 24                                   ^
 25
 26compilation terminated.
 27make *** [obj.mingw32/alleg/poly3d.o] Error 1

no-reply@allegro.cc (GullRaDriel) — Tue, 07 Jun 2016 18:52:39 +0000

You have to use mingw32-make instead of make, IIRC

no-reply@allegro.cc (Edgar Reynaldo) — Tue, 07 Jun 2016 18:58:07 +0000

You should be using "fix.bat", not "./fix.sh", because you're still building with MinGW.

no-reply@allegro.cc (Tamamo) — Tue, 07 Jun 2016 23:12:18 +0000

No dice.

#SelectExpand
  1C:\msys\allegro>Compiling Allegro for MinGW32, optimised. Please wait...
  2gcc -s  -Wl,--subsystem,windows -o tests/win/dibgrab.exe obj/mingw32/alleg/dibgrab.o lib/mingw32/liballeg.a -lkernel32 -luser32 -lgdi32 -lcomdlg32 -lole32 -ldinput -lddraw -ldxguid -lwinmm -ldsound
  3obj/mingw32/alleg/dibgrab.o:dibgrab.c:(.text+0x135): undefined reference to `save_bitmap'
  4obj/mingw32/alleg/dibgrab.o:dibgrab.c:(.text+0x1cc): undefined reference to `_imp__default_palette'
  5obj/mingw32/alleg/dibgrab.o:dibgrab.c:(.text+0x1dc): undefined reference to `set_palette_to_hdc'
  6obj/mingw32/alleg/dibgrab.o:dibgrab.c:(.text+0x277): undefined reference to `blit_from_hdc'
  7obj/mingw32/alleg/dibgrab.o:dibgrab.c:(.text+0x2f0): undefined reference to `stretch_blit_to_hdc'
  8obj/mingw32/alleg/dibgrab.o:dibgrab.c:(.text+0x4c3): undefined reference to `_install_allegro_version_check'
  9obj/mingw32/alleg/dibgrab.o:dibgrab.c:(.text+0x4d0): undefined reference to `set_gdi_color_format'
 10obj/mingw32/alleg/dibgrab.o:dibgrab.c:(.text+0x4ec): undefined reference to `create_bitmap_ex'
 11obj/mingw32/alleg/dibgrab.o:dibgrab.c:(.text+0x562): undefined reference to `destroy_bitmap'
 12collect2.exe: error: ld returned 1 exit status
 13make: *** [tests/win/dibgrab.exe] Error 1

no-reply@allegro.cc (Edgar Reynaldo) — Tue, 07 Jun 2016 23:52:39 +0000

You used "fix.bat mingw32"?

So dibgrab doesn't build. Did the rest of the library build successfully? The examples?

Those errors indicate it is not linking with Allegro, when it shows that it is right above it (lib/mingw32/liballeg.a). Do you have old versions of allegro installed? Is MINGDIR correct?

Also, do you need to use 4.2 for some reason? DOS perhaps? If you don't, use Allegro 4.4.3 from GIT and build using CMake. It works for me on Windows 10 with MinGW 4.8.1 and CMake 3.3.2.