build: Add a selection of stricter compiler warnings

This list is copied from GLib, where it’s been developed over a few
years to provide a balance between false positives and true positives
for low-level code.

https://gitlab.gnome.org/GNOME/glib/-/blob/70607ba417a27579093bef63b306977cfe54c87e/meson.build#L521

Signed-off-by: Philip Withnall <pwithnall@gnome.org>

1 files changed, 15 insertions, 1 deletions

diff --git a/meson.build b/meson.build
index 0b504c6..f0fa77c 100644
--- a/meson.build
+++ b/meson.build
@@ -8,8 +8,22 @@ add_project_arguments(
     '-D_POSIX_C_SOURCE=200809L',
     '-DXDG_PREFIX=xdg_test',
     '-DHAVE_MMAP',
-    '-Wmissing-prototypes',
+    '-Wduplicated-branches',
+    '-Wimplicit-fallthrough',
+    '-Wmisleading-indentation',
+    '-Wmissing-field-initializers',
+    '-Wnonnull',
+    '-Wstrict-prototypes',
+    '-Wunused',
+    '-Werror=format=2',
+    '-Werror=implicit-function-declaration',
+    '-Werror=init-self',
+    '-Werror=missing-include-dirs',
+    '-Werror=missing-prototypes',
+    '-Werror=pointer-arith',
+    '-Werror=pointer-sign',
     '-Werror=sign-compare',
+    '-Werror=unused-result',
     language: 'c',
     native: true,
 )