build: Warn about VLA usage

Using consts for array sizes is a C++-ism, and in GCC in C-mode it won't fold literal constants, and will instead prefer to make a VLA. Signed-off-by: Joshua Ashton <joshua@froggi.es>
2021-03-04 15:37:26 +00:00 · 2021-03-04 15:37:26 +00:00 · 129b464c24
parent 38bb845800
commit 129b464c24
1 changed files with 3 additions and 0 deletions
--- a/meson.build
+++ b/meson.build
@ -97,6 +97,9 @@ endif

 add_project_arguments(vkd3d_compiler.get_supported_arguments([
    '-fvisibility=hidden',
+    # For some reason, the use of VLAs isn't in all+extra+pedantic
+    # We don't want to use these accidentally from consts...
+    '-Wvla',
    '-Wno-format',
    '-Wno-missing-field-initializers',
    '-Wno-unused-parameter',