[pango/wip/meson: 10/10] meson: Add a few missing things, minor fixes, TODO



commit 9e81513e113b0c300179b4fb04c4e44fa7b35e8b
Author: Nirbheek Chauhan <nirbheek centricular com>
Date:   Fri May 19 11:58:44 2017 +0100

    meson: Add a few missing things, minor fixes, TODO

 examples/meson.build           |    6 +++
 meson.build                    |   70 +++++++++++++++++++++++++--------------
 meson_options.txt              |    4 +-
 pango/meson.build              |    6 ++--
 pango/mini-fribidi/meson.build |    4 +--
 tests/meson.build              |   12 +++---
 6 files changed, 63 insertions(+), 39 deletions(-)
---
diff --git a/examples/meson.build b/examples/meson.build
index ebcec9b..8c7275f 100644
--- a/examples/meson.build
+++ b/examples/meson.build
@@ -14,6 +14,12 @@ if pango_font_backends.contains('freetype')
   examples_deps += libpangoft2_dep
 endif
 
+if host_system == 'windows'
+  # This hasn't been built in years, most likely, but try now
+  examples += [ 'pangowin32tobmp' ]
+  examples_deps += [ libpangowin32_dep ]
+endif
+
 foreach e: examples
   executable(e, '@0@.c'.format(e),
              dependencies: examples_deps + pango_deps,
diff --git a/meson.build b/meson.build
index 58b92e4..74e0546 100644
--- a/meson.build
+++ b/meson.build
@@ -1,11 +1,12 @@
-project('pango', 'c', version: '1.40.5',
+project('pango', 'c', 'cpp',
+        version: '1.40.5',
         license: 'LGPLv2.1+',
         default_options: [
           'buildtype=debugoptimized',
           'warning_level=1',
           'c_std=c99',
         ],
-        meson_version : '>= 0.40.0')
+        meson_version : '>= 0.40.1')
 
 add_project_arguments([ '-D_POSIX_C_SOURCE', '-D_POSIX_THREAD_SAFE_FUNCTIONS', '-D_GNU_SOURCE', ], language: 
'c')
 
@@ -42,6 +43,7 @@ host_system = host_machine.system()
 
 # Compiler and linker flags
 common_cflags = []
+common_cppflags = []
 common_ldflags = []
 
 # Add more compiler warnings to the default set
@@ -68,18 +70,23 @@ if cc.get_id() == 'msvc'
     '-we4819', # the file contains a character that cannot be represented in the current code page
   ]
 elif cc.get_id() == 'gcc' or cc.get_id() == 'clang'
-  test_cflags = [
+  test_c_only_flags = [
+    '-Wimplicit-function-declaration',
+    '-Wstrict-prototypes',
+    '-Wmissing-prototypes',
+    '-Wnested-externs',
+    '-Wold-style-definition',
+    '-Wno-int-conversion',
+    '-Wno-discarded-qualifiers',
+  ]
+
+  test_cflags = test_c_only_flags + [
     '-fno-strict-aliasing',
     '-Wpointer-arith',
     '-Wmissing-declarations',
-    '-Wimplicit-function-declaration',
     '-Wformat=2',
     '-Wformat-nonliteral',
     '-Wformat-security',
-    '-Wstrict-prototypes',
-    '-Wmissing-prototypes',
-    '-Wnested-externs',
-    '-Wold-style-definition',
     '-Wunused',
     '-Wcast-align',
     '-Wmissing-noreturn',
@@ -88,8 +95,6 @@ elif cc.get_id() == 'gcc' or cc.get_id() == 'clang'
     '-Wlogical-op',
     '-Wno-uninitialized',
     '-Wno-shadow',
-    '-Wno-int-conversion',
-    '-Wno-discarded-qualifiers',
     '-Werror=redundant-decls',
     '-Werror=implicit',
     '-Werror=nonnull',
@@ -108,32 +113,43 @@ elif cc.get_id() == 'gcc' or cc.get_id() == 'clang'
     '-Werror=write-strings',
     '-Werror=undef',
   ]
+
+  if host_system == 'windows'
+    test_cflags += [ '-mms-bitfields' ]
+  endif
 else
   test_cflags = []
+  test_c_only_flags = []
 endif
 
-foreach cflag: test_cflags
-  if cc.has_argument(cflag)
-    common_cflags += [ cflag ]
-  endif
-endforeach
-
 # Symbol visibility
 if get_option('default_library') != 'static'
-  if host_machine.system() == 'windows'
+  if host_system == 'windows'
     pango_conf.set('DLL_EXPORT', true)
-    if cc.get_id() == 'msvc'
-      pango_conf.set('_PANGO_EXTERN', '__declspec(dllexport) extern')
-    else
-      pango_conf.set('_PANGO_EXTERN', '__attribute__((visibility("default"))) __declspec(dllexport) extern')
-      common_cflags += ['-fvisibility=hidden']
+    pango_conf.set('_PANGO_EXTERN', '__declspec(dllexport) extern')
+    if cc.get_id() != 'msvc'
+      test_cflags += ['-fvisibility=hidden']
     endif
   else
     pango_conf.set('_PANGO_EXTERN', '__attribute__((visibility("default"))) extern')
-    common_cflags += ['-fvisibility=hidden']
+    test_cflags += ['-fvisibility=hidden']
   endif
 endif
 
+# Check all compiler flags
+foreach cflag: test_cflags
+  if cc.has_argument(cflag)
+    common_cflags += [ cflag ]
+  endif
+endforeach
+
+# Isolate the C++ compiler flags
+foreach cflag: common_cflags
+  if not test_c_only_flags.contains(cflag)
+    common_cppflags += [ cflag ]
+  endif
+endforeach
+
 # Linker flags
 if host_machine.system() == 'linux'
   foreach ldflag: [ '-Wl,-Bsymbolic', '-Wl,-z,relro', '-Wl,-z,now', ]
@@ -176,10 +192,14 @@ foreach h: checked_headers
 endforeach
 
 buildtype = get_option('buildtype')
-if buildtype == 'debug' or buildtype == 'debugoptimized'
+if buildtype.startswith('debug')
   pango_debug_cflags = [ '-DPANGO_ENABLE_DEBUG', ]
 elif buildtype == 'release'
   pango_debug_cflags = [ '-DG_DISABLE_CAST_CHECKS', ]
+  # TODO: We may want a configuration argument to add `G_DISABLE_CHECKS`
+  # and `G_DISABLE_ASSERT` from the build, for specific build environments.
+  # On the other hand, those who need these symbols can inject them in their
+  # build as well.
 else
   pango_debug_cflags = []
 endif
@@ -343,6 +363,6 @@ subdir('pango-view')
 subdir('tests')
 subdir('tools')
 
-if get_option('enable-gtk-doc')
+if get_option('enable_docs')
   subdir('docs')
 endif
diff --git a/meson_options.txt b/meson_options.txt
index 783c1d5..2e2b682 100644
--- a/meson_options.txt
+++ b/meson_options.txt
@@ -1,4 +1,4 @@
-option('enable-gtk-doc',
+option('enable_docs',
        description: 'Build API reference for Pango using GTK-Doc',
        type: 'boolean',
-       default: 'false')
+       default: false)
diff --git a/pango/meson.build b/pango/meson.build
index bbc6a57..9e9756b 100644
--- a/pango/meson.build
+++ b/pango/meson.build
@@ -242,7 +242,7 @@ if xft_dep.found()
 endif
 
 # Win32
-if host_system.contains('windows')
+if host_system == 'windows'
   pangowin32_headers = [
     'pangowin32.h',
   ]
@@ -306,7 +306,7 @@ if cairo_dep.found()
     pangocairo_gir_deps += pangoft2_gir_dep
   endif
 
-  if host_system.contains('windows') and pango_font_backends.contains('win32')
+  if host_system == 'windows' and pango_font_backends.contains('win32')
     pangocairo_sources += [
       'pangocairo-win32font.c',
       'pangocairo-win32fontmap.c',
@@ -315,7 +315,7 @@ if cairo_dep.found()
     pangocairo_deps += libpangowin32_dep
   endif
 
-  if host_system.contains('darwin') and pango_font_backends.contains('quartz')
+  if host_system == 'darwin' and pango_font_backends.contains('quartz')
     pangocairo_sources += [
       'pangocoretext.c',
       'pangocoretext-fontmap.c',
diff --git a/pango/mini-fribidi/meson.build b/pango/mini-fribidi/meson.build
index e9dab25..4d87dc2 100644
--- a/pango/mini-fribidi/meson.build
+++ b/pango/mini-fribidi/meson.build
@@ -14,6 +14,4 @@ mini_fribidi_lib = static_library('libmini-fribidi', sources: mini_fribidi_sourc
 
 mini_fribidi_dep = declare_dependency(link_with: mini_fribidi_lib,
                                       dependencies: [ mathlib_dep, gobject_dep ],
-                                      include_directories: [
-                                        include_directories('.'),
-                                      ])
+                                      include_directories: include_directories('.'))
diff --git a/tests/meson.build b/tests/meson.build
index 1a21101..d69a0d0 100644
--- a/tests/meson.build
+++ b/tests/meson.build
@@ -6,11 +6,7 @@ if xft_dep.found()
   test_cflags += [ '-DHAVE_X', '-DHAVE_XFT' ]
 endif
 
-if freetype_dep.found()
-  test_cflags += '-DHAVE_FREETYPE'
-endif
-
-if host_system.contains('windows')
+if host_system == 'windows'
   test_cflags += '-DHAVE_WIN32'
 endif
 
@@ -25,15 +21,18 @@ tests = [
   [ 'testboundaries_ucd' ],
   [ 'testcolor' ],
   [ 'testscript' ],
+  [ 'cxx-test', [ 'cxx-test.cpp' ] ],
 ]
 
 if freetype_dep.found()
+  test_cflags += '-DHAVE_FREETYPE'
   tests += [
     [ 'test-ot-tags', [ 'test-ot-tags.c' ], [ libpangoft2_dep ] ],
   ]
 endif
 
 if cairo_dep.found()
+  test_cflags += '-DHAVE_CAIRO'
   tests += [
     [ 'testiter', [ 'testiter.c' ], [ libpangocairo_dep ] ],
     [ 'test-pangocairo-threads', [ 'test-pangocairo-threads.c' ], [ libpangocairo_dep, cairo_dep ] ],
@@ -52,6 +51,7 @@ foreach t: tests
   bin = executable(name, src,
                    dependencies: deps,
                    include_directories: root_inc,
-                   c_args: common_cflags + pango_debug_cflags)
+                   c_args: common_cflags + pango_debug_cflags + test_cflags,
+                   cpp_args: common_cppflags + pango_debug_cflags + test_cflags)
   test(name, bin, env: test_env)
 endforeach


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