LLVM: use DragonFly BSD workaround on FreeBSD as well

mesonbuild/dependencies/dev.py

@@ -173,13 +173,13 @@ class LLVMDependency(ConfigToolDependency):
 
     def _set_new_link_args(self):
         """How to set linker args for LLVM versions >= 3.9"""
-        if (mesonlib.is_dragonflybsd() and not self.static and
-                version_compare(self.version, '>= 4.0')):
-            # llvm-config on DragonFly BSD for versions 4.0, 5.0, and 6.0 have
-            # an error when generating arguments for shared mode linking, even
-            # though libLLVM.so is installed, because for some reason the tool
-            # expects to find a .so for each static library. This works around
-            # that.
+        if ((mesonlib.is_dragonflybsd() or mesonlib.is_freebsd()) and not
+                self.static and version_compare(self.version, '>= 4.0')):
+            # llvm-config on DragonFly BSD and FreeBSD for versions 4.0, 5.0,
+            # and 6.0 have an error when generating arguments for shared mode
+            # linking, even though libLLVM.so is installed, because for some
+            # reason the tool expects to find a .so for each static library.
+            # This works around that.
             self.link_args = self.get_config_value(['--ldflags'], 'link_args')
             self.link_args.append('-lLLVM')
             return

mesonbuild/mesonlib.py

@@ -288,6 +288,9 @@ def is_debianlike():
 def is_dragonflybsd():
     return platform.system().lower() == 'dragonfly'
 
+def is_freebsd():
+    return platform.system().lower() == 'freebsd'
+
 def for_windows(is_cross, env):
     """
     Host machine is windows?