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AS_IF([test "x$enable_maintainer_flags" = "xyes" && test "x$GCC" = "xyes"],
[check_cc_cxx_flag([-Wall], [CFLAGS="$CFLAGS -Wall"])
check_cc_cxx_flag([-Waggregate-return], [CFLAGS="$CFLAGS -Waggregate-return"])
check_cc_cxx_flag([-Wcast-align], [CFLAGS="$CFLAGS -Wcast-align"])
check_cc_cxx_flag([-Wdeclaration-after-statement], [CFLAGS="$CFLAGS -Wdeclaration-after-statement"])
check_cc_cxx_flag([-Wempty-body], [CFLAGS="$CFLAGS -Wempty-body"])
check_cc_cxx_flag([-Wformat], [CFLAGS="$CFLAGS -Wformat"])
check_cc_cxx_flag([-Wformat-nonliteral], [CFLAGS="$CFLAGS -Wformat-nonliteral"])
check_cc_cxx_flag([-Wformat-security], [CFLAGS="$CFLAGS -Wformat-security"])
check_cc_cxx_flag([-Winit-self], [CFLAGS="$CFLAGS -Winit-self"])
check_cc_cxx_flag([-Winline], [CFLAGS="$CFLAGS -Winline"])
check_cc_cxx_flag([-Wmissing-include-dirs], [CFLAGS="$CFLAGS -Wmissing-include-dirs"])
check_cc_cxx_flag([-Wno-strict-aliasing], [CFLAGS="$CFLAGS -Wno-strict-aliasing"])
check_cc_cxx_flag([-Wno-uninitialized], [CFLAGS="$CFLAGS -Wno-uninitialized"])
check_cc_cxx_flag([-Wredundant-decls], [CFLAGS="$CFLAGS -Wredundant-decls"])
check_cc_cxx_flag([-Wreturn-type], [CFLAGS="$CFLAGS -Wreturn-type"])
check_cc_cxx_flag([-Wshadow], [CFLAGS="$CFLAGS -Wshadow"])
check_cc_cxx_flag([-Wswitch-default], [CFLAGS="$CFLAGS -Wswitch-default"])
check_cc_cxx_flag([-Wswitch-enum], [CFLAGS="$CFLAGS -Wswitch-enum"])
check_cc_cxx_flag([-Wundef], [CFLAGS="$CFLAGS -Wundef"])
check_cc_cxx_flag([-Wuninitialized], [CFLAGS="$CFLAGS -Wuninitialized"])])
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