Can specify compile and link args for internal deps.

mesonbuild/build.py

@@ -486,10 +486,18 @@ def add_external_deps(self, deps):
             if hasattr(dep, 'held_object'):
                 dep = dep.held_object
             if isinstance(dep, dependencies.InternalDependency):
+                # Those parts that are internal.
                 self.process_sourcelist(dep.sources)
                 self.add_include_dirs(dep.include_directories)
                 for l in dep.libraries:
                     self.link(l)
+                # Those parts that are external.
+                extpart = dependencies.InternalDependency([],
+                                                          dep.compile_args,
+                                                          dep.link_args,
+                                                          [], [], [])
+                self.external_deps.append(extpart)
+                # Deps of deps.
                 self.add_external_deps(dep.ext_deps)
             elif isinstance(dep, dependencies.Dependency):
                 self.external_deps.append(dep)

mesonbuild/dependencies.py

@@ -58,14 +58,22 @@ def get_exe_args(self):
     def need_threads(self):
         return False
 
-class InternalDependency():
-    def __init__(self, incdirs, libraries, sources, ext_deps):
+class InternalDependency(Dependency):
+    def __init__(self, incdirs, compile_args, link_args, libraries, sources, ext_deps):
         super().__init__()
         self.include_directories = incdirs
+        self.compile_args = compile_args
+        self.link_args = link_args
         self.libraries = libraries
         self.sources = sources
         self.ext_deps = ext_deps
 
+    def get_compile_args(self):
+        return self.compile_args
+
+    def get_link_args(self):
+        return self.link_args
+
 class PkgConfigDependency(Dependency):
     pkgconfig_found = None
 

mesonbuild/interpreter.py

@@ -1122,6 +1122,8 @@ def func_declare_dependency(self, node, args, kwargs):
         deps = kwargs.get('dependencies', [])
         if not isinstance(deps, list):
             deps = [deps]
+        compile_args = mesonlib.stringlistify(kwargs.get('compile_args', []))
+        link_args = mesonlib.stringlistify(kwargs.get('link_args', []))
         final_deps = []
         for d in deps:
             try:
@@ -1131,7 +1133,7 @@ def func_declare_dependency(self, node, args, kwargs):
             if not isinstance(d, (dependencies.Dependency, dependencies.ExternalLibrary, dependencies.InternalDependency)):
                 raise InterpreterException('Dependencies must be external deps')
             final_deps.append(d)
-        dep = dependencies.InternalDependency(incs, libs, sources, final_deps)
+        dep = dependencies.InternalDependency(incs, compile_args, link_args, libs, sources, final_deps)
         return InternalDependencyHolder(dep)
 
     @noKwargs

test cases/common/87 declare dep/entity/entity1.c

@@ -1,5 +1,9 @@
 #include"entity.h"
 
+#ifdef USING_ENT
+#error "Entity use flag leaked into entity compilation."
+#endif
+
 int entity_func1() {
     return 5;
 }

test cases/common/87 declare dep/entity/meson.build

@@ -2,4 +2,6 @@ entity_lib = static_library('entity', 'entity1.c')
 
 entity_dep = declare_dependency(link_with : entity_lib,
   include_directories : include_directories('.'),
-  sources : 'entity2.c')
+  sources : 'entity2.c',
+  compile_args : ['-DUSING_ENT=1'],
+  link_args : []) # No simple way of testing linker flags :(.

test cases/common/87 declare dep/main.c

@@ -1,6 +1,10 @@
 #include<entity.h>
 #include<stdio.h>
 
+#ifndef USING_ENT
+#error "Entity use flag not used for compilation."
+#endif
+
 int main(int argc, char **argv) {
     if(entity_func1() != 5) {
         printf("Error in func1.\n");