buildroot/package/libglib2/0002-remove-cpp-requirement.patch

From dd65a8cfdeafeb18b72d8d1eb676c7ca43ae505f Mon Sep 17 00:00:00 2001
From: Adam Duskett <Aduskett@gmail.com>
Date: Mon, 16 Sep 2019 10:12:38 -0700
Subject: [PATCH] remove cpp requirement

The c++ test is necessary to ensure libglib doesn't accidentally use C++
reserved keywords in public headers. Because this is just a test, it isn't
necessary to have a C++ compiler to build libglib2.

Signed-off-by: Adam Duskett <Aduskett@gmail.com>
Upstream status: Denied (Buildroot specific)
https://gitlab.gnome.org/GNOME/glib/issues/1748
---
 glib/glibconfig.h.in |  1 -
 meson.build          | 19 +------------------
 2 files changed, 1 insertion(+), 19 deletions(-)

diff --git a/glib/glibconfig.h.in b/glib/glibconfig.h.in
index e66748d95..2173d8be6 100644
--- a/glib/glibconfig.h.in
+++ b/glib/glibconfig.h.in
@@ -119,7 +119,6 @@ typedef unsigned @glib_intptr_type_define@ guintptr;
 @glib_vacopy@
 
 @g_have_iso_c_varargs@
-@g_have_iso_cxx_varargs@
 
 /* gcc-2.95.x supports both gnu style and ISO varargs, but if -ansi
  * is passed ISO vararg support is turned off, and there is no work
diff --git a/meson.build b/meson.build
index 48fdfe864..5df242e39 100644
--- a/meson.build
+++ b/meson.build
@@ -1,4 +1,4 @@
-project('glib', 'c', 'cpp',
+project('glib', 'c',
   version : '2.72.3',
   # NOTE: We keep this pinned at 0.52 because that's what Debian Stable ships
   meson_version : '>= 0.52.0',
@@ -10,7 +10,6 @@ project('glib', 'c', 'cpp',
 )
 
 cc = meson.get_compiler('c')
-cxx = meson.get_compiler('cpp')
 
 cc_can_run = not meson.is_cross_build() or meson.has_exe_wrapper()
 
@@ -495,7 +494,6 @@ else
 endif
 
 add_project_arguments(cc.get_supported_arguments(warning_c_args), language: 'c')
-add_project_arguments(cxx.get_supported_arguments(warning_cxx_args), language: 'cpp')
 
 # FIXME: We cannot build some of the GResource tests with -z nodelete, which
 # means we cannot use that flag in add_project_link_arguments(), and must add
@@ -1734,20 +1732,6 @@ if g_have_iso_c_varargs
 #endif''')
 endif
 
-g_have_iso_cxx_varargs = cxx.compiles('''
-  void some_func (void) {
-    int a(int p1, int p2, int p3);
-    #define call_a(...) a(1,__VA_ARGS__)
-    call_a(2,3);
-  }''', name : 'ISO C99 varargs macros in C++')
-
-if g_have_iso_cxx_varargs
-  glibconfig_conf.set('g_have_iso_cxx_varargs', '''
-#ifdef __cplusplus
-# define G_HAVE_ISO_VARARGS 1
-#endif''')
-endif
-
 g_have_gnuc_varargs = cc.compiles('''
   void some_func (void) {
     int a(int p1, int p2, int p3);
@@ -2381,7 +2365,6 @@ subdir('gobject')
 subdir('gthread')
 subdir('gmodule')
 subdir('gio')
-subdir('fuzzing')
 if build_tests
   subdir('tests')
 endif
-- 
2.34.1