Can set global linker arguments. Closes #536.

mesonbuild/backend/ninjabackend.py

@@ -1626,6 +1626,8 @@ rule FORTRAN_DEP_HACK
         linker_rule = linker_base + crstr + '_LINKER'
         abspath = os.path.join(self.environment.get_build_dir(), target.subdir)
         commands = []
+        if not isinstance(target, build.StaticLibrary):
+            commands += self.build.get_global_link_args(linker)
         commands += self.get_cross_stdlib_link_args(target, linker)
         commands += linker.get_linker_always_args()
         if not isinstance(target, build.StaticLibrary):

mesonbuild/build.py

@@ -88,6 +88,7 @@ class Build:
         self.compilers = []
         self.cross_compilers = []
         self.global_args = {}
+        self.global_link_args = {}
         self.tests = []
         self.benchmarks = []
         self.headers = []
@@ -151,6 +152,9 @@ class Build:
     def get_global_args(self, compiler):
         return self.global_args.get(compiler.get_language(), [])
 
+    def get_global_link_args(self, compiler):
+        return self.global_link_args.get(compiler.get_language(), [])
+
 class IncludeDirs():
     def __init__(self, curdir, dirs, is_system, extra_build_dirs=None):
         self.curdir = curdir

mesonbuild/interpreter.py

@@ -1003,6 +1003,7 @@ class Interpreter():
                       'configure_file' : self.func_configure_file,
                       'include_directories' : self.func_include_directories,
                       'add_global_arguments' : self.func_add_global_arguments,
+                      'add_global_link_arguments' : self.func_add_global_link_arguments,
                       'add_languages' : self.func_add_languages,
                       'find_program' : self.func_find_program,
                       'find_library' : self.func_find_library,
@@ -1919,6 +1920,20 @@ class Interpreter():
         else:
             self.build.global_args[lang] = args
 
+    @stringArgs
+    def func_add_global_link_arguments(self, node, args, kwargs):
+        if self.subproject != '':
+            raise InvalidCode('Global arguments can not be set in subprojects because there is no way to make that reliable.')
+        if self.global_args_frozen:
+            raise InvalidCode('Tried to set global arguments after a build target has been declared.\nThis is not permitted. Please declare all global arguments before your targets.')
+        if not 'language' in kwargs:
+            raise InvalidCode('Missing language definition in add_global_arguments')
+        lang = kwargs['language'].lower()
+        if lang in self.build.global_link_args:
+            self.build.global_link_args[lang] += args
+        else:
+            self.build.global_link_args[lang] = args
+
     def flatten(self, args):
         if isinstance(args, mparser.StringNode):
             return args.value