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-rw-r--r--meson/meson.build196
1 files changed, 196 insertions, 0 deletions
diff --git a/meson/meson.build b/meson/meson.build
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--- /dev/null
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+# General code to enable approximately all warnings.
+#
+# This is trivial for clang and MSVC, but GCC does not have such an option, and
+# has several esoteric warnings, so we need to enable everything we want
+# explicitly. We enable everything that does not require a value argument,
+# except for warnings that are only relevant for very old languages (earlier
+# than C99 or C++11) or non-standard extensions.
+#
+# Omitted common warnings:
+#
+# Wabi=
+# Waggregate-return
+# Walloc-size-larger-than=BYTES
+# Walloca-larger-than=BYTES
+# Wframe-larger-than=BYTES
+# Wlarger-than=BYTES
+# Wstack-usage=BYTES
+# Wsystem-headers
+# Wtraditional
+# Wtraditional-conversion
+# Wtrampolines
+# Wvla-larger-than=BYTES
+#
+# Omitted C warnings:
+#
+# Wc90-c99-compat
+# Wdeclaration-after-statement
+# Wtraditional
+# Wtraditional-conversion
+#
+# Omitted C++ warnings:
+#
+# Wnamespaces
+# Wtemplates
+
+gcc_common_warnings = [
+ '-Walloc-zero',
+ '-Walloca',
+ '-Wanalyzer-too-complex',
+ '-Warith-conversion',
+ '-Warray-bounds=2',
+ '-Wattribute-alias=2',
+ '-Wcast-align=strict',
+ '-Wcast-qual',
+ '-Wconversion',
+ '-Wdate-time',
+ '-Wdisabled-optimization',
+ '-Wdouble-promotion',
+ '-Wduplicated-branches',
+ '-Wduplicated-cond',
+ '-Wfloat-equal',
+ '-Wformat-overflow=2',
+ '-Wformat-signedness',
+ '-Wformat-truncation=2',
+ '-Wformat=2',
+ '-Wimplicit-fallthrough=2',
+ '-Winit-self',
+ '-Winline',
+ '-Winvalid-pch',
+ '-Wlogical-op',
+ '-Wmissing-declarations',
+ '-Wmissing-include-dirs',
+ '-Wmultichar',
+ '-Wnormalized=nfc',
+ '-Wnull-dereference',
+ '-Wpacked',
+ '-Wpadded',
+ '-Wredundant-decls',
+ '-Wscalar-storage-order',
+ '-Wshadow',
+ '-Wshift-overflow=2',
+ '-Wsizeof-array-argument',
+ '-Wstack-protector',
+ '-Wstrict-aliasing=3',
+ '-Wstrict-overflow=5',
+ '-Wstringop-overflow=3',
+ '-Wsuggest-attribute=cold',
+ '-Wsuggest-attribute=const',
+ '-Wsuggest-attribute=format',
+ '-Wsuggest-attribute=malloc',
+ '-Wsuggest-attribute=noreturn',
+ '-Wsuggest-attribute=pure',
+ '-Wswitch-default',
+ '-Wswitch-enum',
+ '-Wsync-nand',
+ '-Wundef',
+ '-Wunused-const-variable=2',
+ '-Wunused-macros',
+ '-Wvarargs',
+ '-Wvector-operation-performance',
+ '-Wvla',
+ '-Wwrite-strings',
+]
+
+gcc_c_warnings = [
+ '-Wbad-function-cast',
+ '-Wc++-compat',
+ '-Wc99-c11-compat',
+ '-Wdesignated-init',
+ '-Wdiscarded-array-qualifiers',
+ '-Wdiscarded-qualifiers',
+ '-Wincompatible-pointer-types',
+ '-Wjump-misses-init',
+ '-Wmissing-prototypes',
+ '-Wnested-externs',
+ '-Wold-style-definition',
+ '-Wstrict-prototypes',
+ '-Wunsuffixed-float-constants',
+]
+
+# Set all_c_warnings for the current C compiler
+if is_variable('cc')
+ if cc.get_id() == 'clang'
+ all_c_warnings = ['-Weverything']
+ elif cc.get_id() == 'gcc'
+ all_c_warnings = gcc_common_warnings + [
+ '-Wbad-function-cast',
+ '-Wc++-compat',
+ '-Wc99-c11-compat',
+ '-Wdesignated-init',
+ '-Wdiscarded-array-qualifiers',
+ '-Wdiscarded-qualifiers',
+ '-Wincompatible-pointer-types',
+ '-Wjump-misses-init',
+ '-Wmissing-prototypes',
+ '-Wnested-externs',
+ '-Wold-style-definition',
+ '-Wstrict-prototypes',
+ '-Wunsuffixed-float-constants',
+ ]
+ elif cc.get_id() == 'msvc'
+ all_c_warnings = ['/Wall']
+ else
+ all_c_warnings = []
+ endif
+endif
+
+# Set all_cpp_warnings for the current C++ compiler
+if is_variable('cpp')
+ if cpp.get_id() == 'clang'
+ all_cpp_warnings = [
+ '-Weverything',
+ '-Wno-c++98-compat',
+ '-Wno-c++98-compat-pedantic'
+ ]
+ elif cpp.get_id() == 'gcc'
+ all_cpp_warnings = gcc_common_warnings + [
+ '-Wabi-tag',
+ '-Waligned-new=all',
+ '-Wcatch-value=3',
+ '-Wcomma-subscript',
+ '-Wconditionally-supported',
+ '-Wctor-dtor-privacy',
+ '-Wdeprecated-copy-dtor',
+ '-Weffc++',
+ '-Wextra-semi',
+ '-Wmismatched-tags',
+ '-Wmultiple-inheritance',
+ '-Wnoexcept',
+ '-Wnoexcept-type',
+ '-Wnon-virtual-dtor',
+ '-Wold-style-cast',
+ '-Woverloaded-virtual',
+ '-Wplacement-new=2',
+ '-Wredundant-tags',
+ '-Wregister',
+ '-Wsign-promo',
+ '-Wstrict-null-sentinel',
+ '-Wsuggest-final-methods',
+ '-Wsuggest-final-types',
+ '-Wsuggest-override',
+ '-Wuseless-cast',
+ '-Wvirtual-inheritance',
+ '-Wvolatile',
+ '-Wzero-as-null-pointer-constant',
+ ]
+ elif cpp.get_id() == 'msvc'
+ all_cpp_warnings = ['/Wall']
+ else
+ all_cpp_warnings = []
+ endif
+endif
+
+# Set all_objc_warnings for the current Objective C compiler
+if is_variable('objcc')
+ all_objc_warnings = []
+ if objcc.get_id() == 'clang'
+ all_objc_warnings = ['-Weverything']
+ elif objc.get_id() == 'gcc'
+ all_objc_warnings = gcc_common_warnings + [
+ '-Wno-direct-ivar-access',
+ ]
+ else
+ all_objc_warnings = []
+ endif
+endif