[polari/wip/fmuellner/ci-snapshots: 3/9] build: Add config header

[Florian Müllner <fmuellner src gnome org>]

commit a55f734f4733f1ae3da9a436a7c43f659e93e06d
Author: Florian Müllner <fmuellner gnome org>
Date:   Wed Jul 25 19:02:40 2018 +0200

    build: Add config header
    
    So far we've just passed the defines we need directly to the compiler,
    but as we'll soon add some more configuration, it makes senses to start
    adding a config.h.
    
    https://gitlab.gnome.org/GNOME/polari/issues/61

 meson.build     | 20 +++++++++++++++++---
 src/meson.build | 10 +---------
 src/polari.c    |  2 ++
 3 files changed, 20 insertions(+), 12 deletions(-)
---
diff --git a/meson.build b/meson.build
index 6089d55..d969d95 100644
--- a/meson.build
+++ b/meson.build
@@ -39,10 +39,24 @@ telepathy_glib = dependency('telepathy-glib')
 girepository = dependency('gobject-introspection-1.0')
 gjs = dependency('gjs-1.0')
 
+conf = configuration_data()
+
+conf.set_quoted('PACKAGE_NAME', meson.project_name())
+conf.set_quoted('PACKAGE_VERSION', meson.project_version())
+conf.set_quoted('PREFIX', prefix)
+conf.set_quoted('LIBDIR', libdir)
+conf.set_quoted('PKGLIBDIR', pkglibdir)
+
 cc = meson.get_compiler('c')
-if (cc.has_function('strcasestr'))
-  add_project_arguments('-DHAVE_STRCASECSTR', language: 'c')
-endif
+conf.set10('HAVE_STRCASESTR', cc.has_function('strcasestr'))
+
+config_h = declare_dependency(
+  sources: configure_file(
+    configuration: conf,
+    output: 'config.h'
+  ),
+  include_directories: include_directories('.')
+)
 
 subdir('src')
 subdir('data')
diff --git a/src/meson.build b/src/meson.build
index 45e95f2..32df375 100644
--- a/src/meson.build
+++ b/src/meson.build
@@ -59,16 +59,8 @@ src_resources = gnome.compile_resources(
   c_name: 'src_resources'
 )
 
-exeargs = [
-  '-DPACKAGE_NAME="polari"',
-  '-DPACKAGE_VERSION="@0@"'.format(meson.project_version()),
-  '-DPREFIX="@0@"'.format(prefix),
-  '-DLIBDIR="@0@"'.format(libdir),
-  '-DPKGLIBDIR="@0@"'.format(pkglibdir)
-]
 polari = executable('polari', ['polari.c', src_resources, data_resources],
-  dependencies: [gio, girepository, gjs],
-  c_args: exeargs,
+  dependencies: [config_h, gio, girepository, gjs],
   install: true
 )
 
diff --git a/src/polari.c b/src/polari.c
index 30f4367..eedf0a4 100644
--- a/src/polari.c
+++ b/src/polari.c
@@ -1,6 +1,8 @@
 #include <girepository.h>
 #include <gjs/gjs.h>
 
+#include "config.h"
+
 G_DEFINE_AUTOPTR_CLEANUP_FUNC (GjsContext, g_object_unref)
 
 const char *src =