meson: rust-bindgen limit allowlist-file to srcdir/include

gitlab CI restricts usage of directories for the build environment and
cache. Msys64 is installed under project root ($srcdir/msys64). This
confuses rust-bindgen allowlist-file which will generate bindings for
all the system include headers under msys64/.

blocklist-file is also too strict, as it prevents generating all the
recursively dependent types coming from system includes.

Instead, let's not use allowlist-file from the project root,

Signed-off-by: Marc-André Lureau <[email protected]>
Message-Id: <[email protected]>

Author: elmarco

meson.build

@@ -4236,8 +4236,7 @@ if have_rust
     '--no-layout-tests',
     '--no-prepend-enum-name',
     '--allowlist-file', meson.project_source_root() + '/include/.*',
-    '--allowlist-file', meson.project_source_root() + '/.*',
-    '--allowlist-file', meson.project_build_root() + '/.*'
+    '--allowlist-file', meson.project_build_root() + '/.*',
     ]
   if not rustfmt.found()
     if bindgen.version().version_compare('<0.65.0')