#11 include paths are incorrect.

[K.-M. Schindler]

most (all?) #includes have mgl/...
However the sequence of include paths
../include/mgl
$PREFIX$/include
../include

Therefore, the first path is missed. If there is an older version installed, old .h files are taken instead of the files in the third path. This leads to build failures, whenever the api changes. One possibility to fix this, is to remove 'mgl/' in the include directives.

[Alexey Balakin]

It is not a bug. All header names are different in v.1. and 2., except <mgl mgl.h=""> which now is renamed to <mgl mathgl.h=""> in v.2.