[dia/zbrown/graphene-rect: 10/11] build: add some more cflags

[Zander Brown <zbrown src gnome org>]

commit 4bd92e9d275f8aaf01c5b94fed64df77005515da
Author: Zander Brown <zbrown gnome org>
Date:   Tue Apr 6 23:24:44 2021 +0100

    build: add some more cflags
    
    Taken from libawaita
    
    https://gitlab.gnome.org/GNOME/dia/-/issues/37

 meson.build | 29 +++++++++++++++++++++++++++--
 1 file changed, 27 insertions(+), 2 deletions(-)
---
diff --git a/meson.build b/meson.build
index 70ad1396e..accd55bd8 100644
--- a/meson.build
+++ b/meson.build
@@ -88,24 +88,49 @@ add_project_arguments([
 
 global_c_args = []
 test_c_args = [
+  '-Wcast-align',
   '-Wdeclaration-after-statement',
   ['-Werror=format-security', '-Werror=format=2'],
+  '-Wendif-labels',
+  '-Werror=incompatible-pointer-types',
   '-Werror=missing-declarations',
+  '-Werror=overflow',
+  '-Werror=return-type',
+  '-Werror=shift-count-overflow',
+  '-Werror=shift-overflow=2',
+  '-Werror=implicit-fallthrough=3',
   '-Wformat-nonliteral',
   '-Wformat-security',
   '-Winit-self',
   '-Wmaybe-uninitialized',
+  '-Wmissing-field-initializers',
+  '-Wmissing-include-dirs',
+  '-Wmissing-noreturn',
+  '-Wnested-externs',
+  '-Wno-missing-field-initializers',
+  '-Wno-sign-compare',
   '-Wno-strict-aliasing',
   '-Wno-unused-parameter',
   '-Wold-style-definition',
+  '-Wpointer-arith',
+  '-Wredundant-decls',
   '-Wshadow',
-  # When gtk3
-  # '-Wstrict-prototypes',
+  '-Wstrict-prototypes',
   '-Wswitch-default',
   '-Wswitch-enum',
+  '-Wtype-limits',
+  '-Wundef',
   '-Wunused-function',
 ]
 
+target_system = target_machine.system()
+
+if get_option('buildtype') != 'plain'
+  if target_system != 'windows'
+    test_c_args += '-fstack-protector-strong'
+  endif
+endif
+
 foreach arg: test_c_args
   if cc.has_multi_arguments(arg)
     global_c_args += arg