[Bug 104819] [libdrm build failure on 32 bit Ubuntu 16.04] libdrm_macros.h:79:4: error: size of unnamed array is negative

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=104819

            Bug ID: 104819
           Summary: [libdrm build failure on 32 bit Ubuntu 16.04]
                    libdrm_macros.h:79:4: error: size of unnamed array is
                    negative
           Product: Mesa
           Version: git
          Hardware: x86 (IA32)
                OS: Linux (All)
            Status: NEW
          Severity: normal
          Priority: medium
         Component: Drivers/Gallium/radeonsi
          Assignee: dri-devel at lists.freedesktop.org
          Reporter: pedretti.fabio at gmail.com
        QA Contact: dri-devel at lists.freedesktop.org
                CC: andrey.grodzovsky at amd.com, michel at daenzer.net

One of latest libdrm commits make libdrm fails to build on 32 bit Ubuntu 16.06.
Builds fine on 64 bit and newer Ubuntus. Error:

make[4]: Entering directory
'/<<BUILDDIR>>/libdrm-2.4.89+git1801270630.6f0f6c~oibaf~x/build/tests/amdgpu'
../../../tests/amdgpu/basic_tests.c: In function ‘amdgpu_userptr_test’:
../../../tests/amdgpu/basic_tests.c:1397:2: warning: ignoring return value of
‘posix_memalign’, declared with attribute warn_unused_result [-Wunused-result]
  posix_memalign(&ptr, sysconf(_SC_PAGE_SIZE), BUFFER_SIZE);
  ^
In file included from ../../../amdgpu/amdgpu_internal.h:35:0,
                 from ../../../tests/amdgpu/vm_tests.c:28:
../../../libdrm_macros.h: In function ‘drm_munmap’:
../../../libdrm_macros.h:79:4: error: size of unnamed array is negative
    STATIC_ASSERT(LARGE_OFF_T % 2147483629 == 721 &&
    ^
Makefile:616: recipe for target 'amdgpu_test-vm_tests.o' failed
make[4]: *** [amdgpu_test-vm_tests.o] Error 1
make[4]: Leaving directory
'/<<BUILDDIR>>/libdrm-2.4.89+git1801270630.6f0f6c~oibaf~x/build/tests/amdgpu'

Full build log including configure flags:
https://launchpadlibrarian.net/354844704/buildlog_ubuntu-xenial-i386.libdrm_2.4.89+git1801270630.6f0f6c~oibaf~x_BUILDING.txt.gz

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