meson: Use cmake to find LLVM when building for windows
We don't use cmake normally because it always results in static linking.
This is very problematic for *nix OSes which expect shared linking by
default, but for windows this isn't a problem as LLVM doesn't support
shared linking on windows anyway.
Reviewed-by: Adam Jackson <ajax@redhat.com>
diff --git a/meson.build b/meson.build
index 2d8668e..00cf3e0 100644
--- a/meson.build
+++ b/meson.build
@@ -1368,8 +1368,16 @@
endif
_shared_llvm = get_option('shared-llvm')
-
_llvm = get_option('llvm')
+
+# The cmake method will never find libllvm.so|dylib; this is fine for windows
+# because llvm doesn't support libllvm.dll
+_llvm_method = 'config-tool'
+if (meson.version().version_compare('>= 0.51.0') and
+ host_machine.system() == 'windows')
+ _llvm_method = 'cmake'
+endif
+
dep_llvm = null_dep
with_llvm = false
if _llvm != 'false'
@@ -1383,7 +1391,7 @@
with_gallium_opencl or _llvm == 'true'
),
static : not _shared_llvm,
- method : 'config-tool',
+ method : _llvm_method,
fallback : ['llvm', 'dep_llvm'],
)
with_llvm = dep_llvm.found()