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Date:      Fri, 30 Oct 2020 10:39:00 +0000
From:      bugzilla-noreply@freebsd.org
To:        ports-bugs@FreeBSD.org
Subject:   [Bug 250739] games/widelands: fails to build with libglvnd
Message-ID:  <bug-250739-7788@https.bugs.freebsd.org/bugzilla/>

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D250739

            Bug ID: 250739
           Summary: games/widelands: fails to build with libglvnd
           Product: Ports & Packages
           Version: Latest
          Hardware: Any
               URL: https://reviews.freebsd.org/P450
                OS: Any
            Status: New
          Keywords: needs-patch
          Severity: Affects Only Me
          Priority: ---
         Component: Individual Port(s)
          Assignee: amdmi3@FreeBSD.org
          Reporter: jbeich@FreeBSD.org
            Blocks: 246767
             Flags: maintainer-feedback?(amdmi3@FreeBSD.org)
          Assignee: amdmi3@FreeBSD.org

Apply review D25020 then notice build fails (see URL for poudriere log).
Replacing files/patch-CMakeLists.txt with USES=3Dlocalbase:ldflags fixes the
build.

-- Found OpenGL: /usr/local/lib/libOpenGL.so
[...]
FAILED: src/io/filesystem/test/test_io_filesystem=20
ld: error: undefined symbol: glReadPixels
>>> referenced by screen.cc
>>>               screen.cc.o:(Screen::to_texture() const) in archive src/g=
raphic/libgraphic_surface.a

ld: error: undefined symbol: glGenTextures
>>> referenced by texture.cc
>>>               texture.cc.o:(Texture::Texture(int, int)) in archive src/=
graphic/libgraphic_surface.a

ld: error: undefined symbol: glTexParameteri
>>> referenced by texture.cc
>>>               texture.cc.o:(Texture::Texture(int, int)) in archive src/=
graphic/libgraphic_surface.a

ld: error: undefined symbol: glTexParameteri
>>> referenced by texture.cc
>>>               texture.cc.o:(Texture::Texture(int, int)) in archive src/=
graphic/libgraphic_surface.a

ld: error: undefined symbol: glTexImage2D
>>> referenced by texture.cc
>>>               texture.cc.o:(Texture::Texture(int, int)) in archive src/=
graphic/libgraphic_surface.a

ld: error: undefined symbol: glGenTextures
>>> referenced by texture.cc
>>>               texture.cc.o:(Texture::init(unsigned short, unsigned shor=
t)) in archive src/graphic/libgraphic_surface.a
[...]

$ grep -i OPENGL.\*LIBRARY.\*so $(make -V BUILD_WRKSRC)/CMakeCache.txt
OPENGL_egl_LIBRARY:FILEPATH=3D/usr/local/lib/libEGL.so
OPENGL_glu_LIBRARY:FILEPATH=3D/usr/local/lib/libGLU.so
OPENGL_glx_LIBRARY:FILEPATH=3D/usr/local/lib/libGLX.so
OPENGL_opengl_LIBRARY:FILEPATH=3D/usr/local/lib/libOpenGL.so

$ pkg info -l libglvnd | grep '.so$' | xargs nm -A 2>&1 | fgrep 'T
glReadPixels'
/usr/local/lib/libGL.so:0000000000072ac0 T glReadPixels
/usr/local/lib/libGLESv1_CM.so:0000000000006e40 T glReadPixels
/usr/local/lib/libGLESv2.so:000000000000e040 T glReadPixels
/usr/local/lib/libOpenGL.so:0000000000021620 T glReadPixels


Referenced Bugs:

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D246767
[Bug 246767] graphics/mesa-libs: enable libglvnd support
--=20
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