I am getting the (traditional) "undefined reference" from improperly linking the allegro library in Code::blocks.
I have installed gcc 4.9.3 and the 5.2 x64 mingw binaries from the liballeg.org, yet none of libraries (.a) in the lib folder seem to work with even a basic example. Am I using the wrong gcc version?
Thanks

You know undefined reference to everything with "al_" infront of the function, such as undefined reference to al_install_system", which means that the library isn't being linked in the linker options dialog in Code::Blocks compiler options.

I followed the install instructions from liballeg, which still take you to the "mingw installer" and which installs gcc 4.9.3, rather than 5.3.0. So after installing mingw-w64 (i didn't know there was a difference between mingw and mingw-w64), I opened a shell/command line and then used this command to update gcc to 5.3

pacman --noconfirm -Suy python2 make pkg-config mingw-w64-x86_64-glib2 mingw-w64-x86_64-toolchain

I now have gcc 5.3.0 installed in c:\msys64/mingw64, and after changing my windows paths to point to this directory from my the c:\MinGW installed by the MinGW installer, I have success. (I had to drop the appropriate .dll I was using into the same folder as the .exe to get it work, but I think that due to a lack of a PATH variable).

Anyway I am happy after porting my game to windows from linux, with 0 changes in my code. It worked straight across.

Now I can concentrate getting it onto steam greenlight so I can my fellow allegronauts feedback.

(Also there is an error in the building from source instruction, which say use "C:\devel" except the makefile scripts are made for "C:\dev" in the a5_sourcepack and so throw up an error.)