From b4c454a75108bc31934d2d0be0141a2220bded84 Mon Sep 17 00:00:00 2001
From: Andoni Morales Alastruey <ylatuya@gmail.com>
Date: Tue, 18 Oct 2022 11:18:06 +0200
Subject: Fix gir build when using subprojects' dependencies

https://github.com/mesonbuild/meson/pull/10275 introduced
support in meson to use uninstalled .pc files in the meson-uninstalled
directory to resolve dependencies built with subprojects.
Replicate the same solution while all the custom_target
are migrated to gnome.generate_dir
---
 gir/meson.build   |  5 +++++
 meson.build       | 10 ++++++++++
 tests/meson.build |  1 +
 3 files changed, 16 insertions(+)

diff --git a/gir/meson.build b/gir/meson.build
index da23e422..09714cc1 100644
--- a/gir/meson.build
+++ b/gir/meson.build
@@ -239,6 +239,7 @@ glib_gir = custom_target('gir-glib',
   depend_files: gir_giscanner_built_files,
   install: true,
   install_dir: girdir,
+  env: g_ir_scanner_env,
   command: glib_command + [
     '--cflags-begin'] + glib_includes + extra_giscanner_cflags + [
     '-DGLIB_COMPILATION',
@@ -307,6 +308,7 @@ gobject_gir = custom_target('gir-gobject',
   depend_files: gir_giscanner_built_files,
   install: true,
   install_dir: girdir,
+  env: g_ir_scanner_env,
   command: gobject_command + [
     '--include-uninstalled=' + glib_gir.full_path(),
     '--cflags-begin'] + glib_includes + extra_giscanner_cflags + [
@@ -360,6 +362,7 @@ gir_files += custom_target('gir-gmodule',
   depend_files: gir_giscanner_built_files,
   install: true,
   install_dir: girdir,
+  env: g_ir_scanner_env,
   command: gmodule_command + [
     '--include-uninstalled=' + glib_gir.full_path(),
     '--cflags-begin'] + glib_includes + extra_giscanner_cflags + [
@@ -456,6 +459,7 @@ gio_gir = custom_target('gir-gio',
   depend_files: gir_giscanner_built_files,
   install: true,
   install_dir: girdir,
+  env: g_ir_scanner_env,
   command: gio_command + [
     '--include-uninstalled=' + gobject_gir.full_path(),
     '--cflags-begin'] + glib_includes + extra_giscanner_cflags + [
@@ -493,6 +497,7 @@ gir_files += custom_target('gir-girepository',
   depend_files: gir_giscanner_built_files,
   install: true,
   install_dir: girdir,
+  env: g_ir_scanner_env,
   command: girepository_command + [
     '--include-uninstalled=' + gobject_gir.full_path(),
     '--cflags-begin'] + glib_includes + extra_giscanner_cflags + [
diff --git a/meson.build b/meson.build
index ca9c2b22..28fbf7fe 100644
--- a/meson.build
+++ b/meson.build
@@ -151,6 +151,16 @@ if not (host_system == 'darwin' and host_arch == 'aarch64' or
   config.set('LEGACY_GIRFFI_FREE', 1)
 endif
 
+# Replicate https://github.com/mesonbuild/meson/pull/10275 setting
+# the correct env in the custom_target
+pkg_config = find_program('pkg-config')
+g_ir_scanner_env = environment()
+dep_type = glib_dep.type_name()
+if dep_type == 'internal'
+  g_ir_scanner_env.append('PKG_CONFIG_PATH', meson.global_build_root() + '/meson-uninstalled')
+  g_ir_scanner_env.set('PKG_CONFIG', pkg_config.full_path())
+endif
+
 configure_file(
   configuration: config,
   output: 'config.h'
diff --git a/tests/meson.build b/tests/meson.build
index abb51f58..22b402b0 100644
--- a/tests/meson.build
+++ b/tests/meson.build
@@ -56,6 +56,7 @@ test_gircompiler = find_program('g-ir-compiler', native: false, required : false
 test_everything_files = custom_target('everything',
   output: ['everything.h', 'everything.c'],
   depends: typelibs,
+  env: g_ir_scanner_env,
   command: [
     test_girscanner,
     '--quiet',
-- 
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