Hello Allegro community,

I've recently come across Allegro and am excited to start using it however I'm having a few problems setting it up.

So my current environment is:

OS - Ubuntu 9.04 Beta
Compiler - gcc, g++
IDE - Code::Blocks
Allegro - 4.9.9.1

The steps I've taken so far are (I've described each step in detail as it might be useful for other beginners trying to get allegro set up on Ubuntu):

1) Installed subversion - sudo apt-get install subversion
2) Installed cmake - sudo apt-get install cmake
3) Made new directory in my home folder to store allegro: mkdir allegro
cd allegro
4) Got the latest version of allegro from svn - svn co https://alleg.svn.sourceforge.net/svnroot/alleg/allegro/branches/4.9
-cd allegro
5) Made a directory for the allegro build - mkdir Build
6) Installed the following libraries using synaptic - libx11-dev, libxcursor-dev, libxxf86vm-dev, libasound2-dev, libjack-dev
7) Downloaded zlib, lpng and loadpng
8) Compiled zlib - make clean
- make
9) Compiled lpng - cp scripts/makefile.linux makefile
- make test
- make install

This is where I'm up to at the moment. So I've compiled the zlib and lpng but and unable to compile loadpng, I get the following errors after I run sudo make:

gcc -W -Wall -O3 -I. -c -o loadpng.o loadpng.c
loadpng.c:9:21: error: allegro.h: No such file or directory
loadpng.c:10:38: error: allegro/internal/aintern.h: No such file or directory
In file included from loadpng.c:11:
loadpng.h:40: error: expected ‘=’, ‘,’, ‘;’, ‘asm’ or ‘__attribute__’ before ‘*’ token
loadpng.h:43: error: expected ‘=’, ‘,’, ‘;’, ‘asm’ or ‘__attribute__’ before ‘*’ token
loadpng.h:46: error: expected ‘=’, ‘,’, ‘;’, ‘asm’ or ‘__attribute__’ before ‘*’ token
loadpng.h:49: error: expected ‘)’ before ‘char’
loadpng.c: In function ‘get_gamma’:
loadpng.c:36: error: ‘AL_CONST’ undeclared (first use in this function)
loadpng.c:36: error: (Each undeclared identifier is reported only once
loadpng.c:36: error: for each function it appears in.)
loadpng.c:36: error: expected ‘;’ before ‘char’
loadpng.c:37: error: ‘gamma_str’ undeclared (first use in this function)
loadpng.c:37: warning: implicit declaration of function ‘atof’
loadpng.c: In function ‘read_data’:
loadpng.c:51: error: ‘PACKFILE’ undeclared (first use in this function)
loadpng.c:51: error: ‘f’ undeclared (first use in this function)
loadpng.c:51: error: expected expression before ‘)’ token
loadpng.c:52: warning: implicit declaration of function ‘pack_fread’
loadpng.c: At top level:
loadpng.c:63: error: expected ‘)’ before ‘*’ token
loadpng.c:80: error: expected ‘=’, ‘,’, ‘;’, ‘asm’ or ‘__attribute__’ before ‘*’ token
loadpng.c:221: error: expected ‘=’, ‘,’, ‘;’, ‘asm’ or ‘__attribute__’ before ‘*’ token
loadpng.c:244: error: expected ‘=’, ‘,’, ‘;’, ‘asm’ or ‘__attribute__’ before ‘*’ token
loadpng.c:308: error: expected specifier-qualifier-list before ‘AL_CONST’
loadpng.c: In function ‘read_data_memory’:
loadpng.c:317: error: ‘MEMORY_READER_STATE’ has no member named ‘bufsize’
loadpng.c:317: error: ‘MEMORY_READER_STATE’ has no member named ‘current_pos’
loadpng.c:320: error: ‘MEMORY_READER_STATE’ has no member named ‘buffer’
loadpng.c:320: error: ‘MEMORY_READER_STATE’ has no member named ‘current_pos’
loadpng.c:321: error: ‘MEMORY_READER_STATE’ has no member named ‘current_pos’
loadpng.c: At top level:
loadpng.c:329: error: expected ‘)’ before ‘void’
loadpng.c:340: error: expected ‘=’, ‘,’, ‘;’, ‘asm’ or ‘__attribute__’ before ‘*’ token
make: *** [loadpng.o] Error 1

To me it looks like it's looking for the allegro library but can't find it. Is there as special place I am meant to put the loadpng folder? And can someone explain to me what zlib, lpng and loadpng actually are? My understanding is zlib is a compression library installed on the operating system, i'm unsure what lpng is and loadpng is a script specifically made for allegro to make using lpng and zlib easier.

Sorry about the long post I just thought I would let everyone know exactly what I've done so far so there's no confusion.

Cheers,

Mike

Thanks for the reply. By lpng I think I meant libpng. Ok so I've tried to compile allegro using make but came across some errors. Here's my output:

Scanning dependencies of target allegro
[ 0%] Building C object CMakeFiles/allegro.dir/src/allegro.c.o
[ 0%] Building C object CMakeFiles/allegro.dir/src/bitmap_new.c.o
[ 1%] Building C object CMakeFiles/allegro.dir/src/blenders.c.o
[ 1%] Building C object CMakeFiles/allegro.dir/src/config.c.o
[ 2%] Building C object CMakeFiles/allegro.dir/src/convert.c.o
[ 2%] Building C object CMakeFiles/allegro.dir/src/display_new.c.o
[ 2%] Building C object CMakeFiles/allegro.dir/src/display_settings.c.o
[ 3%] Building C object CMakeFiles/allegro.dir/src/dtor.c.o
[ 3%] Building C object CMakeFiles/allegro.dir/src/events.c.o
[ 4%] Building C object CMakeFiles/allegro.dir/src/evtsrc.c.o
[ 4%] Building C object CMakeFiles/allegro.dir/src/fshook.c.o
[ 4%] Building C object CMakeFiles/allegro.dir/src/fshook_stdio.c.o
[ 5%] Building C object CMakeFiles/allegro.dir/src/graphics.c.o
[ 5%] Building C object CMakeFiles/allegro.dir/src/inline.c.o
[ 6%] Building C object CMakeFiles/allegro.dir/src/joynu.c.o
[ 6%] Building C object CMakeFiles/allegro.dir/src/keybdnu.c.o
[ 7%] Building C object CMakeFiles/allegro.dir/src/libc.c.o
[ 7%] Building C object CMakeFiles/allegro.dir/src/math.c.o
[ 7%] Building C object CMakeFiles/allegro.dir/src/memblit.c.o
[ 8%] Building C object CMakeFiles/allegro.dir/src/memdraw.c.o
[ 8%] Building C object CMakeFiles/allegro.dir/src/memory.c.o
[ 9%] Building C object CMakeFiles/allegro.dir/src/mousenu.c.o
[ 9%] Building C object CMakeFiles/allegro.dir/src/path.c.o
[ 9%] Building C object CMakeFiles/allegro.dir/src/pixels.c.o
[ 10%] Building C object CMakeFiles/allegro.dir/src/rotate.c.o
[ 10%] Building C object CMakeFiles/allegro.dir/src/system_new.c.o
[ 11%] Building C object CMakeFiles/allegro.dir/src/threads.c.o
[ 11%] Building C object CMakeFiles/allegro.dir/src/timernu.c.o
[ 12%] Building C object CMakeFiles/allegro.dir/src/tls.c.o
[ 12%] Building C object CMakeFiles/allegro.dir/src/unicode.c.o
[ 12%] Building C object CMakeFiles/allegro.dir/src/utf8.c.o
[ 13%] Building C object CMakeFiles/allegro.dir/src/misc/bstrlib.c.o
[ 13%] Building C object CMakeFiles/allegro.dir/src/misc/vector.c.o
[ 14%] Building C object CMakeFiles/allegro.dir/src/unix/udjgpp.c.o
[ 14%] Building C object CMakeFiles/allegro.dir/src/unix/udrvlist.c.o
[ 14%] Building C object CMakeFiles/allegro.dir/src/unix/udummy.c.o
[ 15%] Building C object CMakeFiles/allegro.dir/src/unix/ufdwatch.c.o
[ 15%] Building C object CMakeFiles/allegro.dir/src/unix/ugfxdrv.c.o
[ 16%] Building C object CMakeFiles/allegro.dir/src/unix/ujoydrv.c.o
[ 16%] Building C object CMakeFiles/allegro.dir/src/unix/ukeybd.c.o
[ 17%] Building C object CMakeFiles/allegro.dir/src/unix/umain.c.o
[ 17%] Building C object CMakeFiles/allegro.dir/src/unix/umodules.c.o
[ 17%] Building C object CMakeFiles/allegro.dir/src/unix/umouse.c.o
[ 18%] Building C object CMakeFiles/allegro.dir/src/unix/usystem.c.o
/home/mike/allegro/4.9/src/unix/usystem.c: In function ‘_find_executable_file’:
/home/mike/allegro/4.9/src/unix/usystem.c:262: warning: ignoring return value of ‘getcwd’, declared with attribute warn_unused_result
/home/mike/allegro/4.9/src/unix/usystem.c: In function ‘_unix_get_executable_name’:
/home/mike/allegro/4.9/src/unix/usystem.c:398: warning: ignoring return value of ‘fgets’, declared with attribute warn_unused_result
/home/mike/allegro/4.9/src/unix/usystem.c:406: warning: ignoring return value of ‘fgets’, declared with attribute warn_unused_result
[ 18%] Building C object CMakeFiles/allegro.dir/src/unix/utime.c.o
[ 19%] Building C object CMakeFiles/allegro.dir/src/unix/uxthread.c.o
[ 19%] Building C object CMakeFiles/allegro.dir/src/x/xcursor.c.o
[ 19%] Building C object CMakeFiles/allegro.dir/src/x/xkeyboard.c.o
[ 20%] Building C object CMakeFiles/allegro.dir/src/x/xmousenu.c.o
[ 20%] Building C object CMakeFiles/allegro.dir/src/x/xdisplay.c.o
[ 21%] Building C object CMakeFiles/allegro.dir/src/x/xfullscreen.c.o
/home/mike/allegro/4.9/src/x/xfullscreen.c: In function ‘_al_xglx_fullscreen_set_mode’:
/home/mike/allegro/4.9/src/x/xfullscreen.c:54: warning: ‘mode.width’ may be used uninitialized in this function
/home/mike/allegro/4.9/src/x/xfullscreen.c:54: warning: ‘mode.height’ may be used uninitialized in this function
/home/mike/allegro/4.9/src/x/xfullscreen.c:54: warning: ‘mode.format’ may be used uninitialized in this function
/home/mike/allegro/4.9/src/x/xfullscreen.c:54: warning: ‘mode.refresh_rate’ may be used uninitialized in this function
/home/mike/allegro/4.9/src/x/xfullscreen.c:55: warning: ‘mode2.refresh_rate’ may be used uninitialized in this function
[ 21%] Building C object CMakeFiles/allegro.dir/src/x/xglx_config.c.o
[ 21%] Building C object CMakeFiles/allegro.dir/src/x/xsystem.c.o
[ 22%] Building C object CMakeFiles/allegro.dir/src/linux/ljoynu.c.o
[ 22%] Building C object CMakeFiles/allegro.dir/src/opengl/extensions.c.o
[ 23%] Building C object CMakeFiles/allegro.dir/src/opengl/ogl_bitmap.c.o
[ 23%] Building C object CMakeFiles/allegro.dir/src/opengl/ogl_draw.c.o
[ 24%] Building C object CMakeFiles/allegro.dir/src/opengl/ogl_display.c.o
Linking C shared library lib/liballegro-4.9.10.so
[ 24%] Built target allegro
Scanning dependencies of target a5_iio
[ 24%] Building C object addons/iio/CMakeFiles/a5_iio.dir/bmp.c.o
[ 24%] Building C object addons/iio/CMakeFiles/a5_iio.dir/iio.c.o
[ 25%] Building C object addons/iio/CMakeFiles/a5_iio.dir/pcx.c.o
[ 25%] Building C object addons/iio/CMakeFiles/a5_iio.dir/tga.c.o
[ 26%] Building C object addons/iio/CMakeFiles/a5_iio.dir/png.c.o
Linking C shared library ../../lib/liba5_iio-4.9.10.so
/usr/bin/ld: /usr/local/lib/libz.a(crc32.o): relocation R_X86_64_32 against `a local symbol' can not be used when making a shared object; recompile with -fPIC
/usr/local/lib/libz.a: could not read symbols: Bad value
collect2: ld returned 1 exit status
make[2]: *** [lib/liba5_iio-4.9.10.so] Error 1
make[1]: *** [addons/iio/CMakeFiles/a5_iio.dir/all] Error 2
make: *** [all] Error 2

I don't understand the error and I've a look around the forums for a similar error but couldn't find anything. I've had a look in the usr/local/lib directory in terminal and I can see the libz.a file.

Here's what running gcc --version gives me:
gcc (Ubuntu 4.3.3-5ubuntu4) 4.3.3

Anyone have any idea?

Why don't you just use Ubuntu's zlib?

Any zlib/libpng released in the last two decades will be fine.

What you want is the -dev package, like with the other -dev packages. This one looks right to me: http://packages.ubuntu.com/jaunty/zlib1g-dev

[Edit:] Or better, just get the png dev lib, and Ubuntu will install dependencies on its own: http://packages.ubuntu.com/jaunty/libpng12-dev

Is it allegro's makefile thats looking for /usr/lib? If so, you can pass /usr/lib64 to configure with its --libdir argument.

edit: Oh crap, I forgot you're using Allegro 4.9, there is no configure... Gimme a moment, I'm sure theres a way to pass the same info to cmake.

edit2: Yup, just set LIB_SUFFIX to 64 when running cmake (or set it in ccmake). Using cmake, that'd be:

cmake -DLIB_SUFFIX=64 ..

Ok, blow away your Build dir first and try again. For some reason its pulling in libz from /usr/local, did you install that yourself? You should probably remove it if you did (chdir into the build dir for that install and make uninstall it).

Did you remember to install allegro?

sudo make install

Also, you'll want to add `allegro5-config --libs` with the backticks to the "Extra linker options" pane in Code::Blocks.

I can't recall actually if the pkgconfig stuff got into 4.9.9[.1] or not, but if its there, go into the project settings and you'll see a large list of packages that pkgconfig exports, allegro and its addons (that got installed) should be in there, so you won't have to mess with allegro5-config at all.

I'm assuming it really isn't. But that you let cmake set the install dir to /usr/local, and /usr/local/lib isn't always in the ld.so path (check /etc/ld.so.conf.d/libc.conf or one of the other files in the same dir for /usr/local/lib if it isn't there, add it to libc.conf, and run sudo ldconfig).

Edit: Or of course, uninstall allegro, and tell cmake to install to /usr instead: cmake -DLIB_SUFFIX=64 -DCMAKE_INSTALL_PREFIX=/usr .. and redo the install.