- AX_APPEND_COMPILE_FLAGS_ERROR([-Wchar-subscripts])
- AX_APPEND_COMPILE_FLAGS_ERROR([-Wcomment])
- AX_APPEND_COMPILE_FLAGS_ERROR([-Wfloat-equal])
- AX_APPEND_COMPILE_FLAGS_ERROR([-Wformat-security])
- AX_APPEND_COMPILE_FLAGS_ERROR([-Wformat=2])
- AX_APPEND_COMPILE_FLAGS_ERROR([-Wlogical-op])
- AX_APPEND_COMPILE_FLAGS_ERROR([-Wmaybe-uninitialized])
- AX_APPEND_COMPILE_FLAGS_ERROR([-Wmissing-field-initializers])
- AS_IF([test "$MINGW" = "yes"],
- [AX_APPEND_COMPILE_FLAGS_ERROR([-Wno-missing-noreturn])],
- [AX_APPEND_COMPILE_FLAGS_ERROR([-Wmissing-noreturn])])
- AX_APPEND_COMPILE_FLAGS_ERROR([-Wmissing-prototypes])
- AX_APPEND_COMPILE_FLAGS_ERROR([-Wnested-externs])
- AX_APPEND_COMPILE_FLAGS_ERROR([-Wnormalized=id])
- AX_APPEND_COMPILE_FLAGS_ERROR([-Wold-style-definition])
- AX_APPEND_COMPILE_FLAGS_ERROR([-Woverride-init])
- AX_APPEND_COMPILE_FLAGS_ERROR([-Wpointer-arith])
- AX_APPEND_COMPILE_FLAGS_ERROR([-Wpointer-sign])
- AS_IF([test "x$MINGW" = xyes],
- [AX_APPEND_COMPILE_FLAGS_ERROR([-Wno-suggest-attribute=const])
- AX_APPEND_COMPILE_FLAGS_ERROR([-Wno-suggest-attribute=noreturn])
- AX_APPEND_COMPILE_FLAGS_ERROR([-Wno-suggest-attribute=pure])
- AX_APPEND_COMPILE_FLAGS_ERROR([-Wno-redundant-decls])],
- [AX_APPEND_COMPILE_FLAGS_ERROR([-Wredundant-decls])])
-
- AX_APPEND_COMPILE_FLAGS_ERROR([-Wshadow])
- AX_APPEND_COMPILE_FLAGS_ERROR([-Wshorten-64-to-32])
- AX_APPEND_COMPILE_FLAGS_ERROR([-Wsign-compare])
- AX_APPEND_COMPILE_FLAGS_ERROR([-Wstrict-overflow=1])
- AX_APPEND_COMPILE_FLAGS_ERROR([-Wstrict-prototypes])
- AX_APPEND_COMPILE_FLAGS_ERROR([-Wswitch-enum])
- AX_APPEND_COMPILE_FLAGS_ERROR([-Wundef])
- AX_APPEND_COMPILE_FLAGS_ERROR([-Wunused])
- AX_APPEND_COMPILE_FLAGS_ERROR([-Wunused-result])
- AX_APPEND_COMPILE_FLAGS_ERROR([-Wunused-variable])
- AX_APPEND_COMPILE_FLAGS_ERROR([-Wwrite-strings])
- AX_APPEND_COMPILE_FLAGS_ERROR([-floop-parallelize-all])
- AX_APPEND_COMPILE_FLAGS_ERROR([-fwrapv])
- AX_APPEND_COMPILE_FLAGS_ERROR([-fmudflapt])
- AC_LANG_POP([C])
-])
-
-AC_DEFUN([AX_HARDEN_CXX_COMPILER_FLAGS],
- [AC_PREREQ([2.63])dnl
- AC_REQUIRE([AX_HARDEN_CC_COMPILER_FLAGS])
- AC_LANG_PUSH([C++])
-
- AS_IF([test "x$ac_cv_warnings_as_errors" = xyes],
- [AX_APPEND_COMPILE_FLAGS_ERROR([-Werror])],
- [AX_APPEND_COMPILE_FLAGS_ERROR([-Werror])])
-
- AX_APPEND_COMPILE_FLAGS_ERROR([-g])
- AS_IF([test "x$ax_enable_debug" = xyes],
- [AX_APPEND_COMPILE_FLAGS_ERROR([-O0])
- AX_APPEND_COMPILE_FLAGS_ERROR([-ggdb])],
- [AX_APPEND_COMPILE_FLAGS_ERROR([-O2])
- AX_APPEND_COMPILE_FLAGS_ERROR([-D_FORTIFY_SOURCE=2])])
-
- AS_IF([test "x$ac_cv_vcs_checkout" = xyes],
- [AX_APPEND_COMPILE_FLAGS_ERROR([-Werror])
- AX_APPEND_COMPILE_FLAGS_ERROR([-fstack-check])],
- [AX_APPEND_COMPILE_FLAGS_ERROR([-Wno-pragmas])])
-
- AX_APPEND_COMPILE_FLAGS_ERROR([-Wall])
- AX_APPEND_COMPILE_FLAGS_ERROR([-Wextra])
- AX_APPEND_COMPILE_FLAGS_ERROR([-Wunknown-pragmas])
- AX_APPEND_COMPILE_FLAGS_ERROR([-Wthis-test-should-fail])
+ _APPEND_COMPILE_FLAGS_ERROR([-Wchar-subscripts])
+ _APPEND_COMPILE_FLAGS_ERROR([-Wcomment])
+ _APPEND_COMPILE_FLAGS_ERROR([-Wfloat-equal])
+ _APPEND_COMPILE_FLAGS_ERROR([-Wformat-security])
+ _APPEND_COMPILE_FLAGS_ERROR([-Wformat=2])
+ _APPEND_COMPILE_FLAGS_ERROR([-Wformat-y2k])
+ _APPEND_COMPILE_FLAGS_ERROR([-Wmissing-field-initializers])
+ AS_IF([test "x$MINGW" = xyes],
+ [_APPEND_COMPILE_FLAGS_ERROR([-Wno-missing-noreturn])],
+ [_APPEND_COMPILE_FLAGS_ERROR([-Wmissing-noreturn])])
+ _APPEND_COMPILE_FLAGS_ERROR([-Wmissing-prototypes])
+ _APPEND_COMPILE_FLAGS_ERROR([-Wnested-externs])
+ _APPEND_COMPILE_FLAGS_ERROR([-Wpointer-arith])
+ _APPEND_COMPILE_FLAGS_ERROR([-Wpointer-sign])
+ AS_IF([test "x$MINGW" = xyes],
+ [_APPEND_COMPILE_FLAGS_ERROR([-Wno-suggest-attribute=const])
+ _APPEND_COMPILE_FLAGS_ERROR([-Wno-suggest-attribute=noreturn])
+ _APPEND_COMPILE_FLAGS_ERROR([-Wno-suggest-attribute=pure])
+ _APPEND_COMPILE_FLAGS_ERROR([-Wno-redundant-decls])],
+ [_APPEND_COMPILE_FLAGS_ERROR([-Wredundant-decls])])
+ _APPEND_COMPILE_FLAGS_ERROR([-Wshadow])
+ _APPEND_COMPILE_FLAGS_ERROR([-Wshorten-64-to-32])
+ _APPEND_COMPILE_FLAGS_ERROR([-Wsign-compare])
+ _APPEND_COMPILE_FLAGS_ERROR([-Wstrict-overflow=1])
+ _APPEND_COMPILE_FLAGS_ERROR([-Wstrict-prototypes])
+ _APPEND_COMPILE_FLAGS_ERROR([-Wswitch-enum])
+ _APPEND_COMPILE_FLAGS_ERROR([-Wundef])
+
+ _APPEND_COMPILE_FLAGS_ERROR([-Wunused])
+ _APPEND_COMPILE_FLAGS_ERROR([-Wunused-result])
+ _APPEND_COMPILE_FLAGS_ERROR([-Wunused-variable])
+ _APPEND_COMPILE_FLAGS_ERROR([-Wunused-parameter])
+ _APPEND_COMPILE_FLAGS_ERROR([-Wunused-local-typedefs])
+ _APPEND_COMPILE_FLAGS_ERROR([-Wwrite-strings])
+ _APPEND_COMPILE_FLAGS_ERROR([-fwrapv])
+ _APPEND_COMPILE_FLAGS_ERROR([-fmudflapt])
+ _APPEND_COMPILE_FLAGS_ERROR([-pipe])
+ AS_IF([test "x$MINGW" = xyes],
+ [],
+ [_APPEND_COMPILE_FLAGS_ERROR([-fPIE -pie])])
+ _APPEND_COMPILE_FLAGS_ERROR([-Wsizeof-pointer-memaccess])
+ _APPEND_COMPILE_FLAGS_ERROR([-Wpacked])
+ _APPEND_COMPILE_FLAGS_ERROR([-Wlong-long])
+ _APPEND_COMPILE_FLAGS_ERROR([-ftrapv])
+ # Stop error when using -pie on library builds
+ _APPEND_COMPILE_FLAGS_ERROR([-Wno-unused-command-line-argument])
+# GCC 4.5 removed this.
+# _APPEND_COMPILE_FLAGS_ERROR([-Wunreachable-code])
+
+ _SET_SANITIZE_FLAGS
+
+ AS_IF([test "x$ax_enable_debug" = xno],
+ [AS_IF([test "x$ac_cv_vcs_checkout" = xyes],
+ [AS_IF([test "x${host_os}" != "xmingw"],
+ [AS_IF([test "x$ac_c_gcc_recent" = xyes],
+ [_APPEND_COMPILE_FLAGS_ERROR([-D_FORTIFY_SOURCE=2])
+ #_APPEND_COMPILE_FLAGS_ERROR([-Wstack-protector])
+ #_APPEND_COMPILE_FLAGS_ERROR([-fstack-protector --param=ssp-buffer-size=4])
+ _APPEND_COMPILE_FLAGS_ERROR([-fstack-protector-all])
+ ])])])])
+
+ AS_IF([test "x$ac_cv_warnings_as_errors" = xyes],
+ [AX_APPEND_COMPILE_FLAGS([-Werror])])
+
+ AC_LANG_POP([C])
+ ])
+
+AC_DEFUN([_HARDEN_CXX_COMPILER_FLAGS],
+ [AC_LANG_PUSH([C++])
+ AS_IF([test "x$ax_enable_debug" = xyes],
+ [CXXFLAGS=''
+ #_APPEND_COMPILE_FLAGS_ERROR([-H])
+ _APPEND_COMPILE_FLAGS_ERROR([-g])
+ _APPEND_COMPILE_FLAGS_ERROR([-g3])
+ _APPEND_COMPILE_FLAGS_ERROR([-fno-inline])
+ _APPEND_COMPILE_FLAGS_ERROR([-fno-eliminate-unused-debug-types])
+ _APPEND_COMPILE_FLAGS_ERROR([-fno-omit-frame-pointer])
+ ],[
+ _APPEND_COMPILE_FLAGS_ERROR([-g])
+ _APPEND_COMPILE_FLAGS_ERROR([-O2])
+ ])
+
+ AS_IF([test "x$ac_cv_vcs_checkout" = xyes],
+ [_APPEND_COMPILE_FLAGS_ERROR([-fstack-check])
+# _APPEND_COMPILE_FLAGS_ERROR([--coverage])
+ _APPEND_COMPILE_FLAGS_ERROR([-Wpragmas])
+ _APPEND_COMPILE_FLAGS_ERROR([-Wunknown-pragmas])],
+ [_APPEND_COMPILE_FLAGS_ERROR([-Wno-unknown-pragmas])
+ _APPEND_COMPILE_FLAGS_ERROR([-Wno-pragmas])])
+
+ AS_IF([test "$ax_cv_c_compiler_vendor" = "clang"],[_APPEND_COMPILE_FLAGS_ERROR([-Qunused-arguments])])
+
+ _APPEND_COMPILE_FLAGS_ERROR([-Wall])
+ _APPEND_COMPILE_FLAGS_ERROR([-Wextra])
+ _APPEND_COMPILE_FLAGS_ERROR([-Weverything])
+ _APPEND_COMPILE_FLAGS_ERROR([-Wthis-test-should-fail])