I've been very confused with trying to 'install' allegro. I found out that devc++ has a package manager tool that would do it for me. I'm not very good at all this sort of installation stuff so I thought that would be helpful. So i found a 'devpak' online here: http://devpaks.org/details.php?devpak=1 . I installed the pak, and I started a new, empty, project and tried to run this code:

#include <allegro.h>

int main(void)
{
        allegro_init();
        allegro_message("Hello World!");

        return 0;
}
END_OF_MAIN()

I get these errors in my compile log:
Compiler: Default compiler
Building Makefile: "C:\Dev-Cpp\Makefile.win"
Executing make clean
rm -f Untitled1.o Project1.exe

g++.exe -c Untitled1.cpp -o Untitled1.o -I"C:/Dev-Cpp/lib/gcc/mingw32/3.4.2/include" -I"C:/Dev-Cpp/include/c++/3.4.2/backward" -I"C:/Dev-Cpp/include/c++/3.4.2/mingw32" -I"C:/Dev-Cpp/include/c++/3.4.2" -I"C:/Dev-Cpp/include"

g++.exe Untitled1.o -o "Project1.exe" -L"C:/Dev-Cpp/lib"

/mingw/lib/crt2.o(.text+0x167):crt1.c: undefined reference to `__cpu_features_init'
Untitled1.o(.text+0x27):Untitled1.cpp: undefined reference to `_install_allegro_version_check'
Untitled1.o(.text+0x33):Untitled1.cpp: undefined reference to `allegro_message'

Untitled1.o(.text+0x68):Untitled1.cpp: undefined reference to `_WinMain'
collect2: ld returned 1 exit status

make.exe: *** [Project1.exe] Error 1

Execution terminated

Was there something else I was supposed to do after the devpak was installed?

You need to add liballeg.a as a linker option.

How do I add that if I am using a devpak via the package manager?

It has nothing to do with the package manager. From memory (I no longer have Dev-C++ installed), one of the menu option is 'project options.' Try there.

I had this exact same problem. The way I fixed it is by copying alleg42.dll from the bin folder into the C:\WINDOWS\system32 folder.

That won't do anything to fix his problem.

I don't see the liballeg.a file anywhere in my file tree. I know that it exists within the devpak though\, I just can't seem to get to it.

Windows does come with a file search.

I was under the impression that it would work properly after installing the devpak.

what additional steps are needed?

It was already mentioned. You need to tell your project to link to allegro.

My question is, how do I do that with a DEVPAK installation of allegro?

EDIT: Problem solved, the trouble was that I had more than one installation of Mingw... I didn't realize devc++ installed it as well.