Do not leak out private dependencies for shared libraries.

1 files changed, 11 insertions, 1 deletions

diff --git a/mesonbuild/modules/pkgconfig.py b/mesonbuild/modules/pkgconfig.py
index 2f4dfae..5254731 100644
--- a/mesonbuild/modules/pkgconfig.py
+++ b/mesonbuild/modules/pkgconfig.py
@@ -93,7 +93,17 @@ class DependenciesHelper:
                 if obj.found():
                     processed_libs += obj.get_link_args()
                     processed_cflags += obj.get_compile_args()
-            elif isinstance(obj, (build.SharedLibrary, build.StaticLibrary)):
+            elif isinstance(obj, build.SharedLibrary):
+                processed_libs.append(obj)
+            elif isinstance(obj, build.StaticLibrary):
+                # Due to a "feature" in pkgconfig, it leaks out private dependencies.
+                # Thus we will not add them to the pc file unless the target
+                # we are processing is a static library.
+                #
+                # This way (hopefully) "pkgconfig --libs --static foobar" works
+                # and "pkgconfig --cflags/--libs foobar" does not have any trace
+                # of dependencies that the build file creator has not explicitly
+                # added to the dependency list.
                 processed_libs.append(obj)
                 if public:
                     if not hasattr(obj, 'generated_pc'):