Move warning suppression flags to main meson file

1 files changed, 150 insertions, 5 deletions

diff --git a/meson.build b/meson.build
index aa9963f..3453ba0 100644
--- a/meson.build
+++ b/meson.build
@@ -18,9 +18,9 @@ lv2_docdir = get_option('datadir') / 'doc' / 'lv2'
 lv2_source_root = meson.current_source_dir()
 lv2_build_root = meson.current_build_dir()
 
-#######################
-# Compilers and Flags #
-#######################
+#############################
+# Compilers and Build Tools #
+#############################
 
 # Required tools
 pkg = import('pkgconfig')
@@ -34,8 +34,153 @@ if not get_option('tests').disabled()
   endif
 endif
 
-# Set global warning flags
-subdir('meson/suppressions')
+########################
+# Warning Suppressions #
+########################
+
+warning_level = get_option('warning_level')
+
+# C
+c_suppressions = []
+if warning_level == 'everything'
+  if cc.get_id() in ['clang', 'emscripten']
+    c_suppressions += [
+      '-Wno-bad-function-cast',
+      '-Wno-cast-align',
+      '-Wno-cast-function-type-strict',
+      '-Wno-cast-qual',
+      '-Wno-declaration-after-statement',
+      '-Wno-documentation-unknown-command',
+      '-Wno-double-promotion',
+      '-Wno-float-conversion',
+      '-Wno-float-equal',
+      '-Wno-implicit-float-conversion',
+      '-Wno-padded',
+      '-Wno-reserved-id-macro',
+      '-Wno-shorten-64-to-32',
+      '-Wno-sign-conversion',
+      '-Wno-switch-default',
+      '-Wno-switch-enum',
+      '-Wno-unsafe-buffer-usage',
+    ]
+
+    if not meson.is_cross_build()
+      c_suppressions += ['-Wno-poison-system-directories']
+    endif
+
+    if host_machine.system() == 'windows'
+      c_suppressions += ['-Wno-format-nonliteral']
+    endif
+
+  elif cc.get_id() == 'gcc'
+    c_suppressions += [
+      '-Wno-bad-function-cast',
+      '-Wno-cast-align',
+      '-Wno-cast-qual',
+      '-Wno-conversion',
+      '-Wno-double-promotion',
+      '-Wno-float-equal',
+      '-Wno-inline',
+      '-Wno-padded',
+      '-Wno-suggest-attribute=const',
+      '-Wno-suggest-attribute=malloc',
+      '-Wno-suggest-attribute=pure',
+      '-Wno-switch-default',
+      '-Wno-switch-enum',
+      '-Wno-unsuffixed-float-constants',
+      '-Wno-unused-const-variable',
+    ]
+
+    if target_machine.system() == 'windows'
+      c_suppressions += ['-Wno-suggest-attribute=format']
+    endif
+
+  elif cc.get_id() == 'msvc'
+    c_suppressions += [
+      '/wd4061', # enumerator in switch is not explicitly handled
+      '/wd4244', # conversion with possible loss of data
+      '/wd4267', # conversion from size_t to a smaller type
+      '/wd4310', # cast truncates constant value
+      '/wd4365', # signed/unsigned mismatch
+      '/wd4464', # relative include path contains ".."
+      '/wd4514', # unreferenced inline function has been removed
+      '/wd4514', # unreferenced inline function has been removed
+      '/wd4706', # assignment within conditional expression
+      '/wd4710', # function not inlined
+      '/wd4711', # function selected for automatic inline expansion
+      '/wd4820', # padding added after construct
+      '/wd5045', # will insert Spectre mitigation for memory load
+    ]
+  endif
+endif
+
+if cc.get_id() in ['clang', 'emscripten']
+  c_suppressions += ['-Wno-unused-parameter']
+elif cc.get_id() == 'gcc'
+  c_suppressions += ['-Wno-unused-parameter']
+elif cc.get_id() == 'msvc'
+  c_suppressions += [
+    '/wd4100', # unreferenced formal parameter
+  ]
+endif
+
+c_suppressions = cc.get_supported_arguments(c_suppressions)
+
+# C++
+if is_variable('cpp')
+  cpp_suppressions = []
+
+  if warning_level == 'everything'
+    if cpp.get_id() in ['clang', 'emscripten']
+      cpp_suppressions += [
+        '-Wno-c++98-compat',
+        '-Wno-cast-align',
+        '-Wno-cast-qual',
+        '-Wno-documentation-unknown-command',
+        '-Wno-nullability-extension',
+        '-Wno-padded',
+        '-Wno-reserved-id-macro',
+        '-Wno-unsafe-buffer-usage',
+      ]
+
+      if not meson.is_cross_build()
+        cpp_suppressions += ['-Wno-poison-system-directories']
+      endif
+
+      if host_machine.system() == 'windows'
+        cpp_suppressions += ['-Wno-format-nonliteral']
+      endif
+
+    elif cpp.get_id() == 'gcc'
+      cpp_suppressions += [
+        '-Wno-cast-align',
+        '-Wno-cast-qual',
+        '-Wno-inline',
+        '-Wno-padded',
+        '-Wno-unused-const-variable',
+        '-Wno-useless-cast',
+      ]
+
+      if target_machine.system() == 'windows'
+        cpp_suppressions += ['-Wno-suggest-attribute=format']
+      endif
+
+    elif cpp.get_id() == 'msvc'
+      cpp_suppressions += [
+        '/wd4514', # unreferenced inline function has been removed
+        '/wd4706', # assignment within conditional expression
+        '/wd4710', # function not inlined
+        '/wd4711', # function selected for automatic inline expansion
+        '/wd4820', # padding added after data member
+        '/wd5045', # will insert Spectre mitigation
+        '/wd5264', # const variable is not used
+      ]
+    endif
+  endif
+
+  cpp_suppressions = cpp.get_supported_arguments(cpp_suppressions)
+endif
+
 
 ##########################
 # LV2 Path Configuration #