commit 2edd2c04c27b469ab2b46c6fe6e4bffe6b0c2895
author Paolo Bonzini <pbonzini@redhat.com> Wed Apr 20 17:33:42 2022 +0200
committer Paolo Bonzini <pbonzini@redhat.com> Thu Apr 28 08:52:22 2022 +0200
tree 8ede384bdaf5749378e1270129ebdc905f8fe83c
parent 3730a7341f19cbadde4d12e214b7a82b9de01f75

meson, configure: move keyctl test to meson

Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

meson.build

diff --git a/meson.build b/meson.build
index 9c03436..64161df 100644
--- a/meson.build
+++ b/meson.build
@@ -1940,6 +1940,19 @@
     return getauxval(AT_HWCAP) == 0;
   }'''))
 
+have_keyring = get_option('keyring') \
+  .require(targetos == 'linux', error_message: 'keyring is only available on Linux') \
+  .require(cc.compiles('''
+    #include <errno.h>
+    #include <asm/unistd.h>
+    #include <linux/keyctl.h>
+    #include <sys/syscall.h>
+    #include <unistd.h>
+    int main(void) {
+        return syscall(__NR_keyctl, KEYCTL_READ, 0, NULL, NULL, 0);
+    }'''), error_message: 'keyctl syscall not available on this system').allowed()
+config_host_data.set('CONFIG_SECRET_KEYRING', have_keyring)
+
 have_cpuid_h = cc.links('''
   #include <cpuid.h>
   int main(void) {
@@ -3698,7 +3711,7 @@
 endif
 summary_info += {'AF_ALG support':    have_afalg}
 summary_info += {'rng-none':          get_option('rng_none')}
-summary_info += {'Linux keyring':     config_host.has_key('CONFIG_SECRET_KEYRING')}
+summary_info += {'Linux keyring':     have_keyring}
 summary(summary_info, bool_yn: true, section: 'Crypto')
 
 # Libraries