Comment 0 for bug 1491553

openscad openscad 2015.03-1~dfsg-2ubuntu1 FTBFS on armhf due to conflicting headers.

From the armhf build at https://launchpad.net/ubuntu/+source/openscad/2015.03-1+dfsg-2ubuntu1/+build/7851279

g++ -c -pipe -fno-strict-aliasing -frounding-math -DEIGEN_DONT_ALIGN -I/usr/include/glib-2.0 -I/usr/lib/arm-linux-gnueabihf/glib-2.0/include -I/usr/include/harfbuzz -I/usr/include/freetype2 -I/usr/include/freetype2 -g -O2 -fPIE -fstack-protector-strong -Wformat -Werror=format-security -D_FORTIFY_SOURCE=2 -D_REENTRANT -Wall -W -Wno-unused-local-typedefs -fPIC -DOPENSCAD_VERSION=2015.03-1 -DOPENSCAD_SHORTVERSION=2015.03 -DOPENSCAD_YEAR=.0 -DOPENSCAD_MONTH=.0 -DOPENSCAD_DAY=.0 -DENABLE_CGAL -DENABLE_OPENCSG -DUSE_SCINTILLA_EDITOR -DQT_NO_DEBUG -DQT_OPENGL_LIB -DQT_PRINTSUPPORT_LIB -DQT_WIDGETS_LIB -DQT_GUI_LIB -DQT_CONCURRENT_LIB -DQT_CORE_LIB -I. -Isrc -isystem /usr/include/arm-linux-gnueabihf/qt5 -Isrc/libtess2/Include -isystem /usr/include/arm-linux-gnueabihf/qt5/QtOpenGL -isystem /usr/include/arm-linux-gnueabihf/qt5/QtPrintSupport -isystem /usr/include/arm-linux-gnueabihf/qt5/QtWidgets -isystem /usr/include/arm-linux-gnueabihf/qt5/QtGui -isystem /usr/include/arm-linux-gnueabihf/qt5/QtConcurrent -isystem /usr/include/arm-linux-gnueabihf/qt5/QtCore -Iobjects -isystem /usr/include/eigen3 -I/usr/lib/arm-linux-gnueabihf/qt5/mkspecs/linux-g++ -o objects/grid.o src/grid.cc
In file included from /usr/include/arm-linux-gnueabihf/qt5/QtGui/qopengl.h:97:0,
                 from /usr/include/arm-linux-gnueabihf/qt5/QtOpenGL/qgl.h:39,
                 from /usr/include/arm-linux-gnueabihf/qt5/QtOpenGL/QGLWidget:1,
                 from src/QGLView.h:4,
                 from src/QGLView.cc:28:
/usr/include/GLES3/gl3.h:69:25: error: conflicting declaration 'typedef khronos_ssize_t GLsizeiptr'
 typedef khronos_ssize_t GLsizeiptr;
                         ^
In file included from src/system-gl.h:4:0,
                 from src/QGLView.h:3,
                 from src/QGLView.cc:28:
/usr/include/GL/glew.h:1663:19: note: previous declaration as 'typedef ptrdiff_t GLsizeiptr'
 typedef ptrdiff_t GLsizeiptr;
                   ^
In file included from /usr/include/arm-linux-gnueabihf/qt5/QtGui/qopengl.h:97:0,
                 from /usr/include/arm-linux-gnueabihf/qt5/QtOpenGL/qgl.h:39,
                 from /usr/include/arm-linux-gnueabihf/qt5/QtOpenGL/QGLWidget:1,
                 from src/QGLView.h:4,
                 from src/QGLView.cc:28:
/usr/include/GLES3/gl3.h:70:26: error: conflicting declaration 'typedef khronos_intptr_t GLintptr'
 typedef khronos_intptr_t GLintptr;
                          ^
In file included from src/system-gl.h:4:0,
                 from src/QGLView.h:3,
                 from src/QGLView.cc:28:
/usr/include/GL/glew.h:1662:19: note: previous declaration as 'typedef ptrdiff_t GLintptr'
 typedef ptrdiff_t GLintptr;
                   ^
In file included from /usr/include/arm-linux-gnueabihf/qt5/QtGui/qopengl.h:97:0,
                 from /usr/include/arm-linux-gnueabihf/qt5/QtOpenGL/qgl.h:39,
                 from /usr/include/arm-linux-gnueabihf/qt5/QtOpenGL/QGLWidget:1,
                 from src/QGLView.h:4,
                 from src/QGLView.cc:28:
/usr/include/GLES3/gl3.h:377:60: error: 'void __glewActiveTexture(GLenum)' redeclared as different kind of symbol
 GL_APICALL void GL_APIENTRY glActiveTexture (GLenum texture);
                                                            ^
In file included from src/system-gl.h:4:0,
                 from src/QGLView.h:3,
                 from src/QGLView.cc:28:
/usr/include/GL/glew.h:15048:40: note: previous declaration 'void (* __glewActiveTexture)(GLenum)'
 GLEW_FUN_EXPORT PFNGLACTIVETEXTUREPROC __glewActiveTexture;
                                        ^