Bug#732735: performous: FTBFS: Required library Freetype NOT FOUND.

[Steve Cotton]

On Sat, Dec 21, 2013 at 12:52 +0100, Markus Koschany wrote:
> performous currently FTBFS because the software ships a local cmake
> module, FindFreeType.cmake, instead of using Debian's system default
> module for cmake. However simply removing the local module did not help
> (normally cmake falls back to the system's default then), thus I have
> created a small patch to address this problem.

tl;dr : I think Markus's patch is good.
Sending this anyway to save other people from looking at #731089.

There's a very recent bugfix for FreeType in CMake:
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=731089
Source-Version: 2.8.12.1-1.1

But even when the system module works, Performous's other CMake
modules don't, they use a different capitalisation and sometimes
different names for variables set by FindFreetype.cmake.

Simply deleting all the local cmake modules isn't an easy option
either, not all of them have matching system-supplied ones.

> + find_path(Freetype_INCLUDE_DIR
> +-  NAMES freetype/freetype.h
> ++  NAMES freetype2/freetype.h

I don't think this one is perfect.  IIUC, according to
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=731015#10
the only reliable header filename is "ft2build.h".

But after writing the rest of this, I think it's the right fix.

Thanks,
Steve