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-rw-r--r--meson.build16
1 files changed, 10 insertions, 6 deletions
diff --git a/meson.build b/meson.build
index 5d68a8fd23..58d8cd68a6 100644
--- a/meson.build
+++ b/meson.build
@@ -1648,6 +1648,12 @@ if libbpf.found() and not cc.links('''
   endif
 endif
 
+# libdw
+libdw = dependency('libdw',
+                   method: 'pkg-config',
+                   kwargs: static_kwargs,
+                   required: false)
+
 #################
 # config-host.h #
 #################
@@ -1923,6 +1929,7 @@ config_host_data.set('CONFIG_DBUS_DISPLAY', dbus_display)
 config_host_data.set('CONFIG_CFI', get_option('cfi'))
 config_host_data.set('CONFIG_SELINUX', selinux.found())
 config_host_data.set('CONFIG_XEN_BACKEND', xen.found())
+config_host_data.set('CONFIG_LIBDW', libdw.found())
 if xen.found()
   # protect from xen.version() having less than three components
   xen_version = xen.version().split('.') + ['0', '0']
@@ -2331,11 +2338,9 @@ config_host_data.set('CONFIG_CPUID_H', have_cpuid_h)
 config_host_data.set('CONFIG_AVX2_OPT', get_option('avx2') \
   .require(have_cpuid_h, error_message: 'cpuid.h not available, cannot enable AVX2') \
   .require(cc.links('''
-    #pragma GCC push_options
-    #pragma GCC target("avx2")
     #include <cpuid.h>
     #include <immintrin.h>
-    static int bar(void *a) {
+    static int __attribute__((target("avx2"))) bar(void *a) {
       __m256i x = *(__m256i *)a;
       return _mm256_testz_si256(x, x);
     }
@@ -2345,11 +2350,9 @@ config_host_data.set('CONFIG_AVX2_OPT', get_option('avx2') \
 config_host_data.set('CONFIG_AVX512F_OPT', get_option('avx512f') \
   .require(have_cpuid_h, error_message: 'cpuid.h not available, cannot enable AVX512F') \
   .require(cc.links('''
-    #pragma GCC push_options
-    #pragma GCC target("avx512f")
     #include <cpuid.h>
     #include <immintrin.h>
-    static int bar(void *a) {
+    static int __attribute__((target("avx512f"))) bar(void *a) {
       __m512i x = *(__m512i *)a;
       return _mm512_test_epi64_mask(x, x);
     }
@@ -3976,6 +3979,7 @@ summary_info += {'libudev':           libudev}
 # Dummy dependency, keep .found()
 summary_info += {'FUSE lseek':        fuse_lseek.found()}
 summary_info += {'selinux':           selinux}
+summary_info += {'libdw':             libdw}
 summary(summary_info, bool_yn: true, section: 'Dependencies')
 
 if not supported_cpus.contains(cpu)