Travis fails because of zconf.h

[Jacob Moena]

Travis cannot find either PkgConfig executable nor zconf.h - which is weird.

Is this a Ubuntu bug?

I spent several hours on this, and I don't know how to fix it :(

[Jacob Moena]

First issue:

-- Looking for ZLIB...
-- Could NOT find PkgConfig (missing: PKG_CONFIG_EXECUTABLE)
-- Found ZLIB: optimized;/usr/lib/x86_64-linux-gnu/libz.so;debug;/usr/lib/x86_64-linux-gnu/libz.so

Second issue:

In file included from /home/conan/.conan/data/Assimp/3.3.1/jacmoe/stable/build/e7c5bb97834b9b31d33b99d8b0c30513f615f255/assimp-3.3.1/code/AssbinExporter.cpp:52:0:

/usr/include/zlib.h:34:19: fatal error: zconf.h: No such file or directory compilation terminated.

[Jacob Moena]

Now the problem is actually two problems:

1. Random run-time failures in the Conan: out of index errors..

2. Cannot find pkg executable, and thus not able to to link to zlib (lz)

[Jacob Moena]

Now, we compile everything, but fails to link lib assimp for the test, because it actualy is assimpd.
Very, very close! :)

[Jacob Moena]

Fixed in 08d4dc5