1 files changed, 33 insertions, 0 deletions
diff --git a/mesonbuild/dependencies/misc.py b/mesonbuild/dependencies/misc.py
index 23a283fae..c62f49f83 100644
--- a/mesonbuild/dependencies/misc.py
+++ b/mesonbuild/dependencies/misc.py
@@ -412,6 +412,39 @@ class ThreadDependency(ExternalDependency):
             self.link_args = self.clib_compiler.thread_link_flags(environment)
 
 
+class BlocksDependency(ExternalDependency):
+    def __init__(self, environment, kwargs):
+        super().__init__('blocks', environment, None, kwargs)
+        self.name = 'blocks'
+        self.is_found = False
+
+        if self.env.machines[self.for_machine].is_darwin():
+            self.compile_args = []
+            self.link_args = []
+        else:
+            self.compile_args = ['-fblocks']
+            self.link_args = ['-lBlocksRuntime']
+
+            if not self.clib_compiler.has_header('Block.h', '', environment, disable_cache=True) or \
+               not self.clib_compiler.find_library('BlocksRuntime', environment, []):
+                mlog.log(mlog.red('ERROR:'), 'BlocksRuntime not found.')
+                return
+
+        source = '''
+            int main(int argc, char **argv)
+            {
+                int (^callback)(void) = ^ int (void) { return 0; };
+                return callback();
+            }'''
+
+        with self.clib_compiler.compile(source, extra_args=self.compile_args + self.link_args) as p:
+            if p.returncode != 0:
+                mlog.log(mlog.red('ERROR:'), 'Compiler does not support blocks extension.')
+                return
+
+            self.is_found = True
+
+
 class Python3Dependency(ExternalDependency):
     def __init__(self, environment, kwargs):
         super().__init__('python3', environment, None, kwargs)