[Buildroot] [PATCH 1/1] package/meson: use wrappers for g-ir-scanner and g-ir-compiler

[James Hilliard]

We need to backport a commit to allow us to override the g-ir-scanner
and g-ir-compiler binaries in the gnome module.

By default since meson looks for these binaries as native: true
dependencies it would use the host versions instead of the wrappers
which are not useable for target package builds. Override this behavior
by specifying the correct wrapper binaries in cross-compilation.conf.

Fixes:
http://autobuild.buildroot.net/results/f49/f49bb57a6ec2890f489fbd55ced9c9249d066334/build-end.log

Signed-off-by: James Hilliard <james.hilliard1 at gmail.com>
---
 ...-g-ir-scanner-and-g-ir-compiler-bina.patch | 73 +++++++++++++++++++
 package/meson/cross-compilation.conf.in       |  2 +
 2 files changed, 75 insertions(+)
 create mode 100644 package/meson/0003-Allow-overriding-g-ir-scanner-and-g-ir-compiler-bina.patch

diff --git a/package/meson/0003-Allow-overriding-g-ir-scanner-and-g-ir-compiler-bina.patch b/package/meson/0003-Allow-overriding-g-ir-scanner-and-g-ir-compiler-bina.patch
new file mode 100644
index 0000000000..710bd9acd7
--- /dev/null
+++ b/package/meson/0003-Allow-overriding-g-ir-scanner-and-g-ir-compiler-bina.patch
@@ -0,0 +1,73 @@
+From 49b1c8df7e4ff3a441d831f926d87920952025bf Mon Sep 17 00:00:00 2001
+From: James Hilliard <james.hilliard1 at gmail.com>
+Date: Sat, 2 May 2020 20:43:36 -0600
+Subject: [PATCH] Allow overriding g-ir-scanner and g-ir-compiler binaries.
+
+This is useful when one needs to force meson to use wrappers for cross
+compilation.
+
+Signed-off-by: James Hilliard <james.hilliard1 at gmail.com>
+[james.hilliard1 at gmail.com: backport from upstream commit
+1e073c4c1bd7de06bc74d84e3807c9b210e57a22]
+---
+ mesonbuild/modules/gnome.py | 34 +++++++++++++++++++++-------------
+ 1 file changed, 21 insertions(+), 13 deletions(-)
+
+diff --git a/mesonbuild/modules/gnome.py b/mesonbuild/modules/gnome.py
+index a00005588..b6d7cc141 100644
+--- a/mesonbuild/modules/gnome.py
++++ b/mesonbuild/modules/gnome.py
+@@ -32,7 +32,7 @@ from ..mesonlib import (
+     MachineChoice, MesonException, OrderedSet, Popen_safe, extract_as_list,
+     join_args, unholder,
+ )
+-from ..dependencies import Dependency, PkgConfigDependency, InternalDependency
++from ..dependencies import Dependency, PkgConfigDependency, InternalDependency, ExternalProgram
+ from ..interpreterbase import noKwargs, permittedKwargs, FeatureNew, FeatureNewKwargs
+ 
+ # gresource compilation is broken due to the way
+@@ -735,21 +735,29 @@ class GnomeModule(ExtensionModule):
+         # these utilities via pkg-config, so it would be best to use the
+         # results from pkg-config when possible.
+         gi_util_dirs_check = [state.environment.get_build_dir(), state.environment.get_source_dir()]
+-        giscanner = self.interpreter.find_program_impl('g-ir-scanner')
+-        if giscanner.found():
+-            giscanner_path = giscanner.get_command()[0]
+-            if not any(x in giscanner_path for x in gi_util_dirs_check):
+-                giscanner = self.gir_dep.get_pkgconfig_variable('g_ir_scanner', {})
++        giscanner_bin = state.environment.lookup_binary_entry(MachineChoice.HOST, 'g-ir-scanner')
++        if giscanner_bin is not None:
++            giscanner = ExternalProgram.from_entry('g-ir-scanner', giscanner_bin)
+         else:
+-            giscanner = self.gir_dep.get_pkgconfig_variable('g_ir_scanner', {})
++            giscanner = self.interpreter.find_program_impl('g-ir-scanner')
++            if giscanner.found():
++                giscanner_path = giscanner.get_command()[0]
++                if not any(x in giscanner_path for x in gi_util_dirs_check):
++                    giscanner = self.gir_dep.get_pkgconfig_variable('g_ir_scanner', {})
++            else:
++                giscanner = self.gir_dep.get_pkgconfig_variable('g_ir_scanner', {})
+ 
+-        gicompiler = self.interpreter.find_program_impl('g-ir-compiler')
+-        if gicompiler.found():
+-            gicompiler_path = gicompiler.get_command()[0]
+-            if not any(x in gicompiler_path for x in gi_util_dirs_check):
+-                gicompiler = self.gir_dep.get_pkgconfig_variable('g_ir_compiler', {})
++        gicompiler_bin = state.environment.lookup_binary_entry(MachineChoice.HOST, 'g-ir-compiler')
++        if gicompiler_bin is not None:
++            gicompiler = ExternalProgram.from_entry('g-ir-compiler', gicompiler_bin)
+         else:
+-            gicompiler = self.gir_dep.get_pkgconfig_variable('g_ir_compiler', {})
++            gicompiler = self.interpreter.find_program_impl('g-ir-compiler')
++            if gicompiler.found():
++                gicompiler_path = gicompiler.get_command()[0]
++                if not any(x in gicompiler_path for x in gi_util_dirs_check):
++                    gicompiler = self.gir_dep.get_pkgconfig_variable('g_ir_compiler', {})
++            else:
++                gicompiler = self.gir_dep.get_pkgconfig_variable('g_ir_compiler', {})
+ 
+         ns = kwargs.pop('namespace')
+         nsversion = kwargs.pop('nsversion')
+-- 
+2.25.1
+
diff --git a/package/meson/cross-compilation.conf.in b/package/meson/cross-compilation.conf.in
index d80c472de6..e9344e2b2f 100644
--- a/package/meson/cross-compilation.conf.in
+++ b/package/meson/cross-compilation.conf.in
@@ -9,6 +9,8 @@ cpp = '@TARGET_CROSS at g++'
 ar = '@TARGET_CROSS at ar'
 strip = '@TARGET_CROSS at strip'
 pkgconfig = '@HOST_DIR@/bin/pkgconf'
+g-ir-compiler = '@STAGING_DIR@/usr/bin/g-ir-compiler'
+g-ir-scanner = '@STAGING_DIR@/usr/bin/g-ir-scanner'
 
 [properties]
 needs_exe_wrapper = true
-- 
2.25.1