XXX https://github.com/jasperla/openbsd-wip/tree/master/devel/openmp

Index: test cases/common/184 openmp/meson.build
--- "test cases/common/184 openmp/meson.build.orig"
+++ "test cases/common/184 openmp/meson.build"
@@ -19,6 +19,9 @@ endif
 if host_machine.system() == 'darwin'
   error('MESON_SKIP_TEST macOS does not support OpenMP.')
 endif
+if host_machine.system() == 'openbsd'
+  error('MESON_SKIP_TEST OpenBSD does not support OpenMP.')
+endif
 
 openmp = dependency('openmp')
 env = environment()
