qplatformpixmap.h inclusion in qbrush.cpp

I have a compilation issue on src/gui/painting/qbrush.cpp

I do not urderstand how can #include "qplateformpixmap.h" find the correct path in some cases and fail in some others.

Should we use #include "qpa/qplateformpixmap.h" instead? Or should I find a way to have include/QtGui/qpa in include path in every case?

Buildroot autobuild fail examples :

• http://autobuild.buildroot.net/results/f6d/f6d24b50f58251c8051d39bc1d09b5b43f81f441
• http://autobuild.buildroot.net/results/c64/c64b640a39285f59cde47cb8d06ab70a5ac97c8b
• http://autobuild.buildroot.net/results/b94/b941f35b6c8e1cf3b2c4b046dfcce98700d8f408
• http://autobuild.buildroot.net/results/784/7844e6a3eeecf67dc29277b73bfe714e4d8f0d85
• http://autobuild.buildroot.net/results/255/255a77e01d8af4090e03acb82f9ad93b7c4dd212
• http://autobuild.buildroot.net/results/4be/4be77432390c4cfb557c3f2cc52cf732de037949