Bug#888661: "configure: error: glm/glm.hpp not found. install glm" although libglm-dev is installed

[Rene Engelhard]

Hi,

On Sun, Jan 28, 2018 at 05:39:03PM +0100, Guus Sliepen wrote:
> On Sun, Jan 28, 2018 at 03:31:08PM +0100, Rene Engelhard wrote:
> 
> > >    configure: WARNING: glm/glm.hpp: present but cannot be compiled
> [...]
> > /usr/include/glm/detail/setup.hpp:456:100: note: #pragma message: GLM: GCC older than 4.6 has a bug presenting the use of rgba and stpq components
> >  # pragma message("GLM: GCC older than 4.6 has a bug presenting the use of rgba and stpq components")
> [...]
> > Guus, any idea?
> 
> This seems to be a duplicate of 888550. So it's a bug in GLM.

Ah, thanks. And thanks for the quick upload.

This fixes the configure check, but needs LO adaptions, though it seems:

In file included from /usr/include/glm/gtx/norm.hpp:18:0,
                 from /data/rene/git/LibreOffice/master/vcl/inc/opengl/VertexUti
ls.hxx:16,
                 from /data/rene/git/LibreOffice/master/vcl/inc/opengl/LineRende
rUtils.hxx:14,
                 from /data/rene/git/LibreOffice/master/vcl/opengl/LineRenderUti
ls.cxx:11:
/usr/include/glm/gtx/quaternion.hpp:23:3: error: #error "GLM: GLM_GTX_quaternion
 is an experimental extension and may change in the future. Use #define GLM_ENABLE_EXPERIMENTAL before including it, if you really want to use it."
 # error "GLM: GLM_GTX_quaternion is an experimental extension and may change in the future. Use #define GLM_ENABLE_EXPERIMENTAL before including it, if you really want to use it."
   ^~~~~

But no big deal: :)

+ifeq ($(SYSTEM_GLM),TRUE)
+$(eval $(call gb_Library_add_defs,vcl,\
+        -DGLM_ENABLE_EXPERIMENTAL \
+))
+endif

etc.

Regards,

Rene