with_shared_glapi = false
endif
-with_gbm = get_option('gbm')
-if with_gbm == 'auto' and with_dri # TODO: or gallium
- with_gbm = system_has_kms_drm
-elif with_gbm == 'true'
- if not system_has_kms_drm
- error('GBM only supports DRM/KMS platforms')
- endif
- with_gbm = true
+_gbm = get_option('gbm')
+if _gbm == 'auto'
+ with_gbm = system_has_kms_drm and with_dri
else
- with_gbm = false
+ with_gbm = _gbm == 'true'
+endif
+if with_gbm and not system_has_kms_drm
+ error('GBM only supports DRM/KMS platforms')
endif
_egl = get_option('egl')
endif
with_dri2 = (with_dri or with_any_vk) and with_dri_platform == 'drm'
-with_dri3 = get_option('dri3')
-if with_dri3 == 'auto'
+_dri3 = get_option('dri3')
+if _dri3 == 'auto'
with_dri3 = system_has_kms_drm and with_dri2
else
- with_dri3 = with_dri3 == 'true'
+ with_dri3 = _dri3 == 'true'
endif
if with_any_vk and (with_platform_x11 and not with_dri3)
endif
# Check for GCC style atomics
+dep_atomic = declare_dependency()
+
if cc.compiles('int main() { int n; return __atomic_load_n(&n, __ATOMIC_ACQUIRE); }',
name : 'GCC atomic builtins')
pre_args += '-DUSE_GCC_ATOMIC_BUILTINS'
+
+ # Not all atomic calls can be turned into lock-free instructions, in which
+ # GCC will make calls into the libatomic library. Check whether we need to
+ # link with -latomic.
+ #
+ # This can happen for 64-bit atomic operations on 32-bit architectures such
+ # as ARM.
+ if not cc.links('''#include <stdint.h>
+ int main() {
+ uint64_t n;
+ return (int)__atomic_load_n(&n, __ATOMIC_ACQUIRE);
+ }''',
+ name : 'GCC atomic builtins required -latomic')
+ dep_atomic = cc.find_library('atomic')
+ endif
endif
if not cc.links('''#include <stdint.h>
uint64_t v;
# that for our version checks.
# svn suffixes are stripped by meson as of 0.43, and git suffixes are
# strippped as of 0.44, but we support older meson versions.
- _llvm_patch = _llvm_version[2]
+
+ # 3 digits versions in LLVM only started from 3.4.1 on
+ if dep_llvm.version().version_compare('>= 3.4.1')
+ _llvm_patch = _llvm_version[2]
+ else
+ _llvm_patch = '0'
+ endif
+
if _llvm_patch.endswith('svn')
_llvm_patch = _llvm_patch.split('s')[0]
elif _llvm_patch.contains('git')
pkg = import('pkgconfig')
+env_test = environment()
+env_test.set('NM', find_program('nm').path())
+
subdir('include')
subdir('bin')
subdir('src')