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meson: add manywarnings
Signed-off-by: Pavel Hrdina <phrdina@redhat.com> Reviewed-by: Peter Krempa <pkrempa@redhat.com> Reviewed-by: Neal Gompa <ngompa13@gmail.com>
This commit is contained in:
Pavel Hrdina
parent
6bfa9efeea
commit
8dd259d0c6
@ -1,339 +0,0 @@
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# manywarnings.m4 serial 18
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dnl Copyright (C) 2008-2020 Free Software Foundation, Inc.
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dnl This file is free software; the Free Software Foundation
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dnl gives unlimited permission to copy and/or distribute it,
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dnl with or without modifications, as long as this notice is preserved.
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dnl From Simon Josefsson
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# gl_MANYWARN_COMPLEMENT(OUTVAR, LISTVAR, REMOVEVAR)
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# --------------------------------------------------
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# Copy LISTVAR to OUTVAR except for the entries in REMOVEVAR.
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# Elements separated by whitespace. In set logic terms, the function
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# does OUTVAR = LISTVAR \ REMOVEVAR.
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AC_DEFUN([gl_MANYWARN_COMPLEMENT],
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[
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gl_warn_set=
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set x $2; shift
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for gl_warn_item
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do
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case " $3 " in
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*" $gl_warn_item "*)
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;;
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*)
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gl_warn_set="$gl_warn_set $gl_warn_item"
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;;
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esac
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done
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$1=$gl_warn_set
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])
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# gl_MANYWARN_ALL_GCC(VARIABLE)
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# -----------------------------
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# Add all documented GCC warning parameters to variable VARIABLE.
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# Note that you need to test them using gl_WARN_ADD if you want to
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# make sure your gcc understands it.
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#
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# The effects of this macro depend on the current language (_AC_LANG).
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AC_DEFUN([gl_MANYWARN_ALL_GCC],
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[_AC_LANG_DISPATCH([$0], _AC_LANG, $@)])
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# Specialization for _AC_LANG = C.
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# Use of m4_defun rather than AC_DEFUN works around a bug in autoconf < 2.63b.
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m4_defun([gl_MANYWARN_ALL_GCC(C)],
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[
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AC_LANG_PUSH([C])
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dnl First, check for some issues that only occur when combining multiple
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dnl gcc warning categories.
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AC_REQUIRE([AC_PROG_CC])
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if test -n "$GCC"; then
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dnl Check if -W -Werror -Wno-missing-field-initializers is supported
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dnl with the current $CC $CFLAGS $CPPFLAGS.
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AC_CACHE_CHECK([whether -Wno-missing-field-initializers is supported],
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[gl_cv_cc_nomfi_supported],
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[gl_save_CFLAGS="$CFLAGS"
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CFLAGS="$CFLAGS -W -Werror -Wno-missing-field-initializers"
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AC_COMPILE_IFELSE(
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[AC_LANG_PROGRAM([[]], [[]])],
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[gl_cv_cc_nomfi_supported=yes],
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[gl_cv_cc_nomfi_supported=no])
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CFLAGS="$gl_save_CFLAGS"
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])
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if test "$gl_cv_cc_nomfi_supported" = yes; then
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dnl Now check whether -Wno-missing-field-initializers is needed
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dnl for the { 0, } construct.
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AC_CACHE_CHECK([whether -Wno-missing-field-initializers is needed],
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[gl_cv_cc_nomfi_needed],
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[gl_save_CFLAGS="$CFLAGS"
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CFLAGS="$CFLAGS -W -Werror"
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AC_COMPILE_IFELSE(
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[AC_LANG_PROGRAM(
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[[int f (void)
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{
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typedef struct { int a; int b; } s_t;
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s_t s1 = { 0, };
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return s1.b;
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}
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]],
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[[]])],
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[gl_cv_cc_nomfi_needed=no],
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[gl_cv_cc_nomfi_needed=yes])
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CFLAGS="$gl_save_CFLAGS"
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])
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fi
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dnl Next, check if -Werror -Wuninitialized is useful with the
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dnl user's choice of $CFLAGS; some versions of gcc warn that it
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dnl has no effect if -O is not also used
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AC_CACHE_CHECK([whether -Wuninitialized is supported],
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[gl_cv_cc_uninitialized_supported],
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[gl_save_CFLAGS="$CFLAGS"
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CFLAGS="$CFLAGS -Werror -Wuninitialized"
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AC_COMPILE_IFELSE(
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[AC_LANG_PROGRAM([[]], [[]])],
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[gl_cv_cc_uninitialized_supported=yes],
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[gl_cv_cc_uninitialized_supported=no])
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CFLAGS="$gl_save_CFLAGS"
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])
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fi
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# List all gcc warning categories.
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# To compare this list to your installed GCC's, run this Bash command:
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#
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# comm -3 \
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# <((sed -n 's/^ *\(-[^ 0-9][^ ]*\) .*/\1/p' manywarnings.m4; \
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# awk '/^[^#]/ {print $1}' ../build-aux/gcc-warning.spec) | sort) \
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# <(LC_ALL=C gcc --help=warnings | sed -n 's/^ \(-[^ ]*\) .*/\1/p' | sort)
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gl_manywarn_set=
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for gl_manywarn_item in -fno-common \
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-W \
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-Wabsolute-value \
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-Waddress \
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-Waddress-of-packed-member \
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-Waggressive-loop-optimizations \
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-Wall \
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-Wattribute-warning \
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-Wattributes \
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-Wbad-function-cast \
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-Wbool-compare \
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-Wbool-operation \
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-Wbuiltin-declaration-mismatch \
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-Wbuiltin-macro-redefined \
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-Wcannot-profile \
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-Wcast-align \
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-Wcast-align=strict \
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-Wcast-function-type \
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-Wchar-subscripts \
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-Wclobbered \
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-Wcomment \
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-Wcomments \
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-Wcoverage-mismatch \
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-Wcpp \
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-Wdangling-else \
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-Wdate-time \
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-Wdeprecated \
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-Wdeprecated-declarations \
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-Wdesignated-init \
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-Wdisabled-optimization \
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-Wdiscarded-array-qualifiers \
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-Wdiscarded-qualifiers \
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-Wdiv-by-zero \
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-Wdouble-promotion \
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-Wduplicated-branches \
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-Wduplicated-cond \
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-Wduplicate-decl-specifier \
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-Wempty-body \
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-Wendif-labels \
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-Wenum-compare \
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-Wexpansion-to-defined \
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-Wextra \
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-Wformat-contains-nul \
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-Wformat-extra-args \
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-Wformat-nonliteral \
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-Wformat-security \
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-Wformat-signedness \
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-Wformat-y2k \
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-Wformat-zero-length \
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-Wframe-address \
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-Wfree-nonheap-object \
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-Whsa \
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-Wif-not-aligned \
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-Wignored-attributes \
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-Wignored-qualifiers \
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-Wimplicit \
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-Wimplicit-function-declaration \
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-Wimplicit-int \
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-Wincompatible-pointer-types \
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-Winit-self \
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-Winline \
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-Wint-conversion \
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-Wint-in-bool-context \
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-Wint-to-pointer-cast \
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-Winvalid-memory-model \
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-Winvalid-pch \
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-Wlogical-not-parentheses \
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-Wlogical-op \
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-Wmain \
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-Wmaybe-uninitialized \
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-Wmemset-elt-size \
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-Wmemset-transposed-args \
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-Wmisleading-indentation \
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-Wmissing-attributes \
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-Wmissing-braces \
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-Wmissing-declarations \
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-Wmissing-field-initializers \
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-Wmissing-include-dirs \
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-Wmissing-parameter-type \
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-Wmissing-profile \
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-Wmissing-prototypes \
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-Wmultichar \
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-Wmultistatement-macros \
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-Wnarrowing \
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-Wnested-externs \
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-Wnonnull \
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-Wnonnull-compare \
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-Wnull-dereference \
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-Wodr \
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-Wold-style-declaration \
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-Wold-style-definition \
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-Wopenmp-simd \
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-Woverflow \
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-Woverlength-strings \
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-Woverride-init \
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-Wpacked \
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-Wpacked-bitfield-compat \
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-Wpacked-not-aligned \
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-Wparentheses \
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-Wpointer-arith \
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-Wpointer-compare \
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-Wpointer-sign \
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-Wpointer-to-int-cast \
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-Wpragmas \
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-Wpsabi \
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-Wrestrict \
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-Wreturn-local-addr \
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-Wreturn-type \
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-Wscalar-storage-order \
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-Wsequence-point \
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-Wshadow \
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-Wshift-count-negative \
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-Wshift-count-overflow \
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-Wshift-negative-value \
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-Wsizeof-array-argument \
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-Wsizeof-pointer-div \
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-Wsizeof-pointer-memaccess \
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-Wstack-protector \
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-Wstrict-aliasing \
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-Wstrict-overflow \
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-Wstrict-prototypes \
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-Wstringop-truncation \
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-Wsuggest-attribute=cold \
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-Wsuggest-attribute=const \
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-Wsuggest-attribute=format \
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-Wsuggest-attribute=malloc \
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-Wsuggest-attribute=noreturn \
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-Wsuggest-attribute=pure \
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-Wsuggest-final-methods \
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-Wsuggest-final-types \
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-Wswitch \
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-Wswitch-bool \
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-Wswitch-unreachable \
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-Wsync-nand \
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-Wsystem-headers \
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-Wtautological-compare \
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-Wtrampolines \
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-Wtrigraphs \
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-Wtype-limits \
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-Wuninitialized \
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-Wunknown-pragmas \
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-Wunsafe-loop-optimizations \
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-Wunused \
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-Wunused-but-set-parameter \
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-Wunused-but-set-variable \
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-Wunused-function \
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-Wunused-label \
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-Wunused-local-typedefs \
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-Wunused-macros \
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-Wunused-parameter \
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-Wunused-result \
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-Wunused-value \
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-Wunused-variable \
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-Wvarargs \
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-Wvariadic-macros \
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-Wvector-operation-performance \
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-Wvla \
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-Wvolatile-register-var \
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-Wwrite-strings \
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\
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; do
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gl_manywarn_set="$gl_manywarn_set $gl_manywarn_item"
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done
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# gcc --help=warnings outputs an unusual form for these options; list
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# them here so that the above 'comm' command doesn't report a false match.
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# Would prefer "min (PTRDIFF_MAX, SIZE_MAX)", but it must be a literal.
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# Also, AC_COMPUTE_INT requires it to fit in a long; it is 2**63 on
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# the only platforms where it does not fit in a long, so make that
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# a special case.
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AC_MSG_CHECKING([max safe object size])
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AC_COMPUTE_INT([gl_alloc_max],
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[LONG_MAX < (PTRDIFF_MAX < (size_t) -1 ? PTRDIFF_MAX : (size_t) -1)
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? -1
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: PTRDIFF_MAX < (size_t) -1 ? (long) PTRDIFF_MAX : (long) (size_t) -1],
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[[#include <limits.h>
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#include <stddef.h>
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#include <stdint.h>
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]],
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[gl_alloc_max=2147483647])
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case $gl_alloc_max in
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-1) gl_alloc_max=9223372036854775807;;
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esac
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AC_MSG_RESULT([$gl_alloc_max])
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gl_manywarn_set="$gl_manywarn_set -Walloc-size-larger-than=$gl_alloc_max"
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gl_manywarn_set="$gl_manywarn_set -Warray-bounds=2"
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gl_manywarn_set="$gl_manywarn_set -Wattribute-alias=2"
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gl_manywarn_set="$gl_manywarn_set -Wformat-overflow=2"
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gl_manywarn_set="$gl_manywarn_set -Wformat-truncation=2"
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gl_manywarn_set="$gl_manywarn_set -Wimplicit-fallthrough=5"
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gl_manywarn_set="$gl_manywarn_set -Wnormalized=nfc"
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gl_manywarn_set="$gl_manywarn_set -Wshift-overflow=2"
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gl_manywarn_set="$gl_manywarn_set -Wstringop-overflow=2"
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gl_manywarn_set="$gl_manywarn_set -Wunused-const-variable=2"
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gl_manywarn_set="$gl_manywarn_set -Wvla-larger-than=4031"
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# These are needed for older GCC versions.
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if test -n "$GCC"; then
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case `($CC --version) 2>/dev/null` in
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'gcc (GCC) '[[0-3]].* | \
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'gcc (GCC) '4.[[0-7]].*)
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gl_manywarn_set="$gl_manywarn_set -fdiagnostics-show-option"
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gl_manywarn_set="$gl_manywarn_set -funit-at-a-time"
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;;
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esac
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fi
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# Disable specific options as needed.
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if test "$gl_cv_cc_nomfi_needed" = yes; then
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gl_manywarn_set="$gl_manywarn_set -Wno-missing-field-initializers"
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fi
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if test "$gl_cv_cc_uninitialized_supported" = no; then
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gl_manywarn_set="$gl_manywarn_set -Wno-uninitialized"
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fi
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$1=$gl_manywarn_set
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AC_LANG_POP([C])
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])
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# Specialization for _AC_LANG = C++.
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# Use of m4_defun rather than AC_DEFUN works around a bug in autoconf < 2.63b.
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m4_defun([gl_MANYWARN_ALL_GCC(C++)],
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[
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gl_MANYWARN_ALL_GCC_CXX_IMPL([$1])
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])
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192
meson.build
192
meson.build
@ -205,6 +205,198 @@ libvirt_revision = arr_version[2].to_int()
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libvirt_lib_version = '@0@.@1@.@2@'.format(libvirt_so_version, libvirt_age, libvirt_revision)
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# check compile flags
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cc = meson.get_compiler('c')
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cc_flags = [
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'-fno-common',
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'-W',
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'-Wabsolute-value',
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'-Waddress',
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'-Waddress-of-packed-member',
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'-Waggressive-loop-optimizations',
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'-Wall',
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'-Wattribute-warning',
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'-Wattributes',
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'-Wbad-function-cast',
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'-Wbool-compare',
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'-Wbool-operation',
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'-Wbuiltin-declaration-mismatch',
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'-Wbuiltin-macro-redefined',
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'-Wcannot-profile',
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'-Wcast-align',
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'-Wcast-align=strict',
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'-Wcast-function-type',
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'-Wchar-subscripts',
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'-Wclobbered',
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'-Wcomment',
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'-Wcomments',
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'-Wcoverage-mismatch',
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'-Wcpp',
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'-Wdangling-else',
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||||
'-Wdate-time',
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'-Wdeprecated',
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||||
'-Wdeprecated-declarations',
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||||
'-Wdesignated-init',
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'-Wdisabled-optimization',
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||||
'-Wdiscarded-array-qualifiers',
|
||||
'-Wdiscarded-qualifiers',
|
||||
'-Wdiv-by-zero',
|
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'-Wdouble-promotion',
|
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'-Wduplicated-branches',
|
||||
'-Wduplicated-cond',
|
||||
'-Wduplicate-decl-specifier',
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'-Wempty-body',
|
||||
'-Wendif-labels',
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'-Wenum-compare',
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||||
'-Wexpansion-to-defined',
|
||||
'-Wextra',
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||||
'-Wformat-contains-nul',
|
||||
'-Wformat-extra-args',
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||||
'-Wformat-nonliteral',
|
||||
'-Wformat-security',
|
||||
'-Wformat-signedness',
|
||||
'-Wformat-y2k',
|
||||
'-Wformat-zero-length',
|
||||
'-Wframe-address',
|
||||
'-Wfree-nonheap-object',
|
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'-Whsa',
|
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'-Wif-not-aligned',
|
||||
'-Wignored-attributes',
|
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'-Wignored-qualifiers',
|
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'-Wimplicit',
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'-Wimplicit-function-declaration',
|
||||
'-Wimplicit-int',
|
||||
'-Wincompatible-pointer-types',
|
||||
'-Winit-self',
|
||||
'-Winline',
|
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'-Wint-conversion',
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'-Wint-in-bool-context',
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'-Wint-to-pointer-cast',
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'-Winvalid-memory-model',
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'-Winvalid-pch',
|
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'-Wlogical-not-parentheses',
|
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'-Wlogical-op',
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'-Wmain',
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'-Wmaybe-uninitialized',
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'-Wmemset-elt-size',
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'-Wmemset-transposed-args',
|
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'-Wmisleading-indentation',
|
||||
'-Wmissing-attributes',
|
||||
'-Wmissing-braces',
|
||||
'-Wmissing-declarations',
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'-Wmissing-field-initializers',
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'-Wmissing-include-dirs',
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||||
'-Wmissing-parameter-type',
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||||
'-Wmissing-profile',
|
||||
'-Wmissing-prototypes',
|
||||
'-Wmultichar',
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||||
'-Wmultistatement-macros',
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'-Wnarrowing',
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'-Wnested-externs',
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'-Wnonnull',
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'-Wnonnull-compare',
|
||||
'-Wnull-dereference',
|
||||
'-Wodr',
|
||||
'-Wold-style-declaration',
|
||||
'-Wold-style-definition',
|
||||
'-Wopenmp-simd',
|
||||
'-Woverflow',
|
||||
'-Woverlength-strings',
|
||||
'-Woverride-init',
|
||||
'-Wpacked',
|
||||
'-Wpacked-bitfield-compat',
|
||||
'-Wpacked-not-aligned',
|
||||
'-Wparentheses',
|
||||
'-Wpointer-arith',
|
||||
'-Wpointer-compare',
|
||||
'-Wpointer-sign',
|
||||
'-Wpointer-to-int-cast',
|
||||
'-Wpragmas',
|
||||
'-Wpsabi',
|
||||
'-Wrestrict',
|
||||
'-Wreturn-local-addr',
|
||||
'-Wreturn-type',
|
||||
'-Wscalar-storage-order',
|
||||
'-Wsequence-point',
|
||||
'-Wshadow',
|
||||
'-Wshift-count-negative',
|
||||
'-Wshift-count-overflow',
|
||||
'-Wshift-negative-value',
|
||||
'-Wsizeof-array-argument',
|
||||
'-Wsizeof-pointer-div',
|
||||
'-Wsizeof-pointer-memaccess',
|
||||
'-Wstack-protector',
|
||||
'-Wstrict-aliasing',
|
||||
'-Wstrict-overflow',
|
||||
'-Wstrict-prototypes',
|
||||
'-Wstringop-truncation',
|
||||
'-Wsuggest-attribute=cold',
|
||||
'-Wsuggest-attribute=const',
|
||||
'-Wsuggest-attribute=format',
|
||||
'-Wsuggest-attribute=malloc',
|
||||
'-Wsuggest-attribute=noreturn',
|
||||
'-Wsuggest-attribute=pure',
|
||||
'-Wsuggest-final-methods',
|
||||
'-Wsuggest-final-types',
|
||||
'-Wswitch',
|
||||
'-Wswitch-bool',
|
||||
'-Wswitch-unreachable',
|
||||
'-Wsync-nand',
|
||||
'-Wsystem-headers',
|
||||
'-Wtautological-compare',
|
||||
'-Wtrampolines',
|
||||
'-Wtrigraphs',
|
||||
'-Wtype-limits',
|
||||
'-Wuninitialized',
|
||||
'-Wunknown-pragmas',
|
||||
'-Wunsafe-loop-optimizations',
|
||||
'-Wunused',
|
||||
'-Wunused-but-set-parameter',
|
||||
'-Wunused-but-set-variable',
|
||||
'-Wunused-function',
|
||||
'-Wunused-label',
|
||||
'-Wunused-local-typedefs',
|
||||
'-Wunused-macros',
|
||||
'-Wunused-parameter',
|
||||
'-Wunused-result',
|
||||
'-Wunused-value',
|
||||
'-Wunused-variable',
|
||||
'-Wvarargs',
|
||||
'-Wvariadic-macros',
|
||||
'-Wvector-operation-performance',
|
||||
'-Wvla',
|
||||
'-Wvolatile-register-var',
|
||||
'-Wwrite-strings',
|
||||
]
|
||||
|
||||
# gcc --help=warnings outputs
|
||||
ptrdiff_max = cc.sizeof('ptrdiff_t', prefix: '#include <stddef.h>')
|
||||
size_max = cc.sizeof('size_t', prefix: '#include <stdint.h>')
|
||||
# Compute max safe object size by checking ptrdiff_t and size_t sizes.
|
||||
# Ideally we would get PTRDIFF_MAX and SIZE_MAX values but it would
|
||||
# give us (2147483647L) and we would have to remove the () and the suffix
|
||||
# in order to convert it to numbers to be able to pick the smaller one.
|
||||
alloc_max = run_command(
|
||||
'python3', '-c',
|
||||
'print(min(2**(@0@ * 8 - 1) - 1, 2**(@1@ * 8) - 1))'.format(ptrdiff_max, size_max),
|
||||
)
|
||||
cc_flags += [
|
||||
'-Walloc-size-larger-than=@0@'.format(alloc_max.stdout().strip()),
|
||||
'-Warray-bounds=2',
|
||||
'-Wattribute-alias=2',
|
||||
'-Wformat-overflow=2',
|
||||
'-Wformat-truncation=2',
|
||||
'-Wimplicit-fallthrough=5',
|
||||
'-Wnormalized=nfc',
|
||||
'-Wshift-overflow=2',
|
||||
'-Wstringop-overflow=2',
|
||||
'-Wunused-const-variable=2',
|
||||
'-Wvla-larger-then=4031',
|
||||
]
|
||||
|
||||
|
||||
# define top include directory
|
||||
|
||||
top_inc_dir = include_directories('.')
|
||||
|
||||
Loading…
Reference in New Issue
Block a user