meson: suppress some spurious compiler warnings with MSVC
diff --git a/meson.build b/meson.build
index 6d5257a..176eefb 100644
--- a/meson.build
+++ b/meson.build
@@ -5,6 +5,24 @@
pkgmod = import('pkgconfig')
cpp = meson.get_compiler('cpp')
+if cpp.get_id() == 'msvc'
+ # Ignore several spurious warnings for things HarfBuzz does very commonly.
+ # If a warning is completely useless and spammy, use '/wdXXXX' to suppress it
+ # If a warning is harmless but hard to fix, use '/woXXXX' so it's shown once
+ # NOTE: Only add warnings here if you are sure they're spurious
+ msvc_args = [
+ '/wd4018', # implicit signed/unsigned conversion
+ '/wd4146', # unary minus on unsigned (beware INT_MIN)
+ '/wd4244', # lossy type conversion (e.g. double -> int)
+ '/wd4305', # truncating type conversion (e.g. double -> float)
+ cpp.get_supported_arguments(['/utf-8']), # set the input encoding to utf-8
+ ]
+ add_project_arguments(msvc_args, language : 'c')
+ add_project_arguments(msvc_args, language : 'cpp')
+ # Disable SAFESEH with MSVC for libs that use external deps that are built with MinGW
+ # noseh_link_args = ['/SAFESEH:NO']
+endif
+
python3 = import('python').find_installation('python3')
check_headers = [