+# vim:expandtab:shiftwidth=2:tabstop=2:smarttab:
# ===========================================================================
# https://github.com/BrianAker/ddm4/
# ===========================================================================
#
# SYNOPSIS
#
-# AX_HARDEN_COMPILER_FLAGS()
-# AX_HARDEN_LINKER_FLAGS()
-# AX_HARDEN_CC_COMPILER_FLAGS()
-# AX_HARDEN_CXX_COMPILER_FLAGS()
+# AX_HARDEN_COMPILER_FLAGS() AX_HARDEN_LINKER_FLAGS()
#
# DESCRIPTION
#
# The Following flags are not checked for
# -Wdeclaration-after-statement is counter to C99
-# AX_APPEND_COMPILE_FLAGS_ERROR([-std=c++11]) -- Not ready yet
-# AX_APPEND_COMPILE_FLAGS_ERROR([-pedantic]) -- ?
-# AX_APPEND_COMPILE_FLAGS_ERROR([-Wstack-protector]) -- Issues on 32bit compile
-# AX_APPEND_COMPILE_FLAGS_ERROR([-fstack-protector-all]) -- Issues on 32bit compile
-# AX_APPEND_COMPILE_FLAGS_ERROR([-Wlong-long]) -- Don't turn on for compatibility issues memcached_stat_st
-
-#serial 5
-
-AC_DEFUN([AX_APPEND_LINK_FLAGS_ERROR],
- [AC_PREREQ([2.63])dnl
- AX_APPEND_LINK_FLAGS([$1],[LIB],[-Werror])])
-
-AC_DEFUN([AX_APPEND_COMPILE_FLAGS_ERROR],
- [AC_PREREQ([2.63])dnl
- AX_APPEND_COMPILE_FLAGS([$1])])
-
-AC_DEFUN([AX_HARDEN_LINKER_FLAGS],
- [AC_PREREQ([2.63])dnl
- AC_REQUIRE([AX_CHECK_LINK_FLAG])
- AC_REQUIRE([AX_VCS_CHECKOUT])
- AC_REQUIRE([AX_DEBUG])
- AC_REQUIRE([AX_CXX_COMPILER_VERSION])
- AX_APPEND_LINK_FLAGS_ERROR([-z relro -z now])
- AX_APPEND_LINK_FLAGS_ERROR([-pie])
- AS_IF([test "x$ac_cv_vcs_checkout" = xyes],[AX_APPEND_LINK_FLAGS_ERROR([-Werror])])
+# _APPEND_COMPILE_FLAGS_ERROR([-std=c++11]) -- Not ready yet
+# _APPEND_COMPILE_FLAGS_ERROR([-pedantic]) --
+# ? _APPEND_COMPILE_FLAGS_ERROR([-Wlong-long]) -- Don't turn on for
+# compatibility issues memcached_stat_st
+
+#serial 8
+
+AC_DEFUN([_WARNINGS_AS_ERRORS],
+ [AC_CACHE_CHECK([if all warnings into errors],[ac_cv_warnings_as_errors],
+ [AS_IF([test "x$ac_cv_vcs_checkout" = xyes],[ac_cv_warnings_as_errors=yes],
+ [ac_cv_warnings_as_errors=no])
+ ])
])
-AC_DEFUN([AX_HARDEN_CC_COMPILER_FLAGS],
- [AC_PREREQ([2.63])dnl
- AC_LANG_PUSH([C])dnl
- AC_REQUIRE([AX_APPEND_COMPILE_FLAGS_ERROR])
- AC_REQUIRE([AX_HARDEN_LINKER_FLAGS])
-
- ac_cv_warnings_as_errors=no
- AS_IF([test "x$ac_cv_vcs_checkout" = xyes],
- [AX_APPEND_COMPILE_FLAGS_ERROR([-Werror])
- ac_cv_warnings_as_errors=yes],
- [AX_APPEND_COMPILE_FLAGS_ERROR([-Werror])])
-
- AX_APPEND_LINK_FLAGS_ERROR([-g])
- AS_IF([test "x$ax_enable_debug" = xyes],
- [AX_APPEND_LINK_FLAGS_ERROR([-ggdb])
- AX_APPEND_LINK_FLAGS_ERROR([-O0])],
- [AX_APPEND_LINK_FLAGS_ERROR([-O2])])
-
- 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])
- AX_APPEND_COMPILE_FLAGS_ERROR([-std=c99])
+# Note: Should this be LIBS or LDFLAGS?
+AC_DEFUN([_APPEND_LINK_FLAGS_ERROR],
+ [AC_REQUIRE([AX_APPEND_LINK_FLAGS])
+ AX_APPEND_LINK_FLAGS([$1],[LDFLAGS],[-Werror])
+ ])
+
+AC_DEFUN([_APPEND_COMPILE_FLAGS_ERROR],
+ [AC_REQUIRE([AX_APPEND_COMPILE_FLAGS])
+ AX_APPEND_COMPILE_FLAGS([$1],,[-Werror])
+ ])
+
+# Everything above this does the heavy lifting, while what follows does the specifics.
+
+AC_DEFUN([_HARDEN_LINKER_FLAGS],
+ [
+ AS_IF([test "$CC" != "clang"],
+ [_APPEND_LINK_FLAGS_ERROR([-z relro -z now])
+#_APPEND_LINK_FLAGS_ERROR([-pie])
+ AS_IF([test "x$ac_cv_warnings_as_errors" = xyes],
+ [AX_APPEND_LINK_FLAGS([-Werror])])])
+ ])
+
+AC_DEFUN([_HARDEN_CC_COMPILER_FLAGS],
+ [AC_LANG_PUSH([C])dnl
+
+ AS_IF([test "x$ax_enable_debug" = xyes],
+ [CFLAGS=''
+ _APPEND_COMPILE_FLAGS_ERROR([-H])
+ _APPEND_COMPILE_FLAGS_ERROR([-ggdb])
+ _APPEND_COMPILE_FLAGS_ERROR([-g])
+ _APPEND_COMPILE_FLAGS_ERROR([-O0])],
+ [_APPEND_COMPILE_FLAGS_ERROR([-g])
+ _APPEND_COMPILE_FLAGS_ERROR([-O2])])
+
+ AS_IF([test "x$ac_cv_vcs_checkout" = xyes],
+ [_APPEND_COMPILE_FLAGS_ERROR([-fstack-check])
+ _APPEND_COMPILE_FLAGS_ERROR([-Wpragmas])
+ _APPEND_COMPILE_FLAGS_ERROR([-Wunknown-pragmas])],
+ [_APPEND_COMPILE_FLAGS_ERROR([-Wno-unknown-pragmas])
+ _APPEND_COMPILE_FLAGS_ERROR([-Wno-pragmas])])
+
+ AS_IF([test "$CC" = "clang"],
+ [_APPEND_COMPILE_FLAGS_ERROR([-Qunused-arguments])])
+
+ _APPEND_COMPILE_FLAGS_ERROR([-Wall])
+ _APPEND_COMPILE_FLAGS_ERROR([-Wextra])
+ _APPEND_COMPILE_FLAGS_ERROR([-Wthis-test-should-fail])
+ _APPEND_COMPILE_FLAGS_ERROR([-std=c99])
# Anything below this comment please keep sorted.
- AX_APPEND_COMPILE_FLAGS_ERROR([--param=ssp-buffer-size=1])
-# -Wmissing-format-attribute
- AX_APPEND_COMPILE_FLAGS_ERROR([-Wno-attributes])
- AX_APPEND_COMPILE_FLAGS_ERROR([-Waddress])
- AX_APPEND_COMPILE_FLAGS_ERROR([-Warray-bounds])
- AX_APPEND_COMPILE_FLAGS_ERROR([-Wbad-function-cast])
+# _APPEND_COMPILE_FLAGS_ERROR([-Wmissing-format-attribute])
+ _APPEND_COMPILE_FLAGS_ERROR([-Wunsuffixed-float-constants])
+ _APPEND_COMPILE_FLAGS_ERROR([-Wjump-misses-init])
+ _APPEND_COMPILE_FLAGS_ERROR([-Wno-attributes])
+ _APPEND_COMPILE_FLAGS_ERROR([-Waddress])
+ _APPEND_COMPILE_FLAGS_ERROR([-Wvarargs])
+ _APPEND_COMPILE_FLAGS_ERROR([-Warray-bounds])
+ _APPEND_COMPILE_FLAGS_ERROR([-Wbad-function-cast])
# Not in use -Wc++-compat
- 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$ac_cv_vcs_checkout" = xyes],
- [AX_APPEND_COMPILE_FLAGS_ERROR([-Werror])
- AX_APPEND_COMPILE_FLAGS_ERROR([-fstack-check])],
- [AX_APPEND_COMPILE_FLAGS_ERROR([-Wno-pragmas])])
-
- AX_APPEND_COMPILE_FLAGS_ERROR([-Wall])
- AX_APPEND_COMPILE_FLAGS_ERROR([-Wextra])
- AX_APPEND_COMPILE_FLAGS_ERROR([-Wunknown-pragmas])
- AX_APPEND_COMPILE_FLAGS_ERROR([-Wthis-test-should-fail])
+ _APPEND_COMPILE_FLAGS_ERROR([-Wchar-subscripts])
+ _APPEND_COMPILE_FLAGS_ERROR([-Wcomment])
+ _APPEND_COMPILE_FLAGS_ERROR([-Wfloat-equal])
+ _APPEND_COMPILE_FLAGS_ERROR([-Wformat-security])
+ _APPEND_COMPILE_FLAGS_ERROR([-Wformat=2])
+ _APPEND_COMPILE_FLAGS_ERROR([-Wformat-y2k])
+ _APPEND_COMPILE_FLAGS_ERROR([-Wlogical-op])
+ _APPEND_COMPILE_FLAGS_ERROR([-Wmaybe-uninitialized])
+ _APPEND_COMPILE_FLAGS_ERROR([-Wmissing-field-initializers])
+ AS_IF([test "x$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([-Wnormalized=id])
+ _APPEND_COMPILE_FLAGS_ERROR([-Wold-style-definition])
+ _APPEND_COMPILE_FLAGS_ERROR([-Woverride-init])
+ _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([-Wtrampolines])
+ _APPEND_COMPILE_FLAGS_ERROR([-Wundef])
+ _APPEND_COMPILE_FLAGS_ERROR([-Wunsafe-loop-optimizations])
+ _APPEND_COMPILE_FLAGS_ERROR([-funsafe-loop-optimizations])
+ _APPEND_COMPILE_FLAGS_ERROR([-fsanitize=address])
+ _APPEND_COMPILE_FLAGS_ERROR([-fsanitize=integer])
+ _APPEND_COMPILE_FLAGS_ERROR([-fsanitize=thread])
+ _APPEND_COMPILE_FLAGS_ERROR([-fsanitize=memory])
+ _APPEND_COMPILE_FLAGS_ERROR([-fsanitize=alignment])
+ _APPEND_COMPILE_FLAGS_ERROR([-fsanitize=bool])
+ _APPEND_COMPILE_FLAGS_ERROR([-fsanitize=bounds])
+ _APPEND_COMPILE_FLAGS_ERROR([-fsanitize=enum])
+ _APPEND_COMPILE_FLAGS_ERROR([-fsanitize=float-cast-overflow])
+ _APPEND_COMPILE_FLAGS_ERROR([-fsanitize=float-divide-by-zero])
+ _APPEND_COMPILE_FLAGS_ERROR([-fsanitize=integer-divide-by-zero])
+ _APPEND_COMPILE_FLAGS_ERROR([-fsanitize=null])
+ _APPEND_COMPILE_FLAGS_ERROR([-fsanitize=object-size])
+ _APPEND_COMPILE_FLAGS_ERROR([-fsanitize=return])
+ _APPEND_COMPILE_FLAGS_ERROR([-fsanitize=shift])
+ _APPEND_COMPILE_FLAGS_ERROR([-fsanitize=signed-integer-overflow])
+ _APPEND_COMPILE_FLAGS_ERROR([-fsanitize=unreachable])
+ _APPEND_COMPILE_FLAGS_ERROR([-fsanitize=unsigned-integer-overflow])
+ _APPEND_COMPILE_FLAGS_ERROR([-fsanitize=vla-bound])
+ _APPEND_COMPILE_FLAGS_ERROR([-fsanitize=vptr])
+ _APPEND_COMPILE_FLAGS_ERROR([-Wclobbered])
+ _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([-floop-parallelize-all])
+ _APPEND_COMPILE_FLAGS_ERROR([-fwrapv])
+ _APPEND_COMPILE_FLAGS_ERROR([-fmudflapt])
+ _APPEND_COMPILE_FLAGS_ERROR([-pipe])
+
+ AS_IF([test "x$ax_enable_debug" = xno],
+ [AS_IF([test "x$ac_cv_vcs_checkout" = xyes],
+ [AS_IF([test "x${target_os}" != "xmingw"],
+ [AS_IF([test "x$ac_c_gcc_recent" = xyes],
+ [_APPEND_COMPILE_FLAGS_ERROR([-D_FORTIFY_SOURCE=2])
+ #_APPEND_COMPILE_FLAGS_ERROR([-Wstack-protector])
+ #_APPEND_COMPILE_FLAGS_ERROR([-fstack-protector])
+ #_APPEND_COMPILE_FLAGS_ERROR([--param=ssp-buffer-size=1])
+ _APPEND_COMPILE_FLAGS_ERROR([-fstack-protector-all])
+ ])])])])
+
+ AS_IF([test "x$ac_cv_warnings_as_errors" = xyes],
+ [AX_APPEND_FLAG([-Werror])])
+
+ AC_LANG_POP([C])
+ ])
+
+AC_DEFUN([_HARDEN_CXX_COMPILER_FLAGS],
+ [AC_LANG_PUSH([C++])
+ AC_REQUIRE([_APPEND_COMPILE_FLAGS_ERROR])
+
+ AS_IF([test "x$ax_enable_debug" = xyes],
+ [CXXFLAGS=''
+ _APPEND_COMPILE_FLAGS_ERROR([-H])
+ _APPEND_COMPILE_FLAGS_ERROR([-ggdb])
+ _APPEND_COMPILE_FLAGS_ERROR([-g])
+ _APPEND_COMPILE_FLAGS_ERROR([-O0])],
+ [_APPEND_COMPILE_FLAGS_ERROR([-g])
+ _APPEND_COMPILE_FLAGS_ERROR([-O2])])
+
+ AS_IF([test "x$ac_cv_vcs_checkout" = xyes],
+ [_APPEND_COMPILE_FLAGS_ERROR([-fstack-check])
+ _APPEND_COMPILE_FLAGS_ERROR([-Wpragmas])
+ _APPEND_COMPILE_FLAGS_ERROR([-Wunknown-pragmas])],
+ [_APPEND_COMPILE_FLAGS_ERROR([-Wno-unknown-pragmas])
+ _APPEND_COMPILE_FLAGS_ERROR([-Wno-pragmas])])
+
+ AS_IF([test "$CXX" = "clang++"],
+ [_APPEND_COMPILE_FLAGS_ERROR([-Qunused-arguments])])
+
+ _APPEND_COMPILE_FLAGS_ERROR([-Wall])
+ _APPEND_COMPILE_FLAGS_ERROR([-Wextra])
+ _APPEND_COMPILE_FLAGS_ERROR([-Wthis-test-should-fail])
# Anything below this comment please keep sorted.
- AX_APPEND_COMPILE_FLAGS_ERROR([--param=ssp-buffer-size=1])
-# -Wmissing-format-attribute
- AX_APPEND_COMPILE_FLAGS_ERROR([-Wno-attributes])
- AX_APPEND_COMPILE_FLAGS_ERROR([-Waddress])
- AX_APPEND_COMPILE_FLAGS_ERROR([-Warray-bounds])
- AX_APPEND_COMPILE_FLAGS_ERROR([-Wchar-subscripts])
- AX_APPEND_COMPILE_FLAGS_ERROR([-Wcomment])
- AX_APPEND_COMPILE_FLAGS_ERROR([-Wctor-dtor-privacy])
- AX_APPEND_COMPILE_FLAGS_ERROR([-Wfloat-equal])
- AX_APPEND_COMPILE_FLAGS_ERROR([-Wformat=2])
- AX_APPEND_COMPILE_FLAGS_ERROR([-Wmaybe-uninitialized])
- AX_APPEND_COMPILE_FLAGS_ERROR([-Wmissing-field-initializers])
- AS_IF([test "x$MINGW" = xyes],
- [AX_APPEND_COMPILE_FLAGS_ERROR([-Wno-missing-noreturn])],
- [AX_APPEND_COMPILE_FLAGS_ERROR([-Wmissing-noreturn])])
- AX_APPEND_COMPILE_FLAGS_ERROR([-Wlogical-op])
- AX_APPEND_COMPILE_FLAGS_ERROR([-Wnon-virtual-dtor])
- AX_APPEND_COMPILE_FLAGS_ERROR([-Wnormalized=id])
- AX_APPEND_COMPILE_FLAGS_ERROR([-Woverloaded-virtual])
- AX_APPEND_COMPILE_FLAGS_ERROR([-Wpointer-arith])
- 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-error=suggest-attribute=noreturn])
- 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([-Wswitch-enum])
- AX_APPEND_COMPILE_FLAGS_ERROR([-Wundef])
- AX_APPEND_COMPILE_FLAGS_ERROR([-Wc++11-compat])
- 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([-Wformat-security])
- AX_APPEND_COMPILE_FLAGS_ERROR([-floop-parallelize-all])
- AX_APPEND_COMPILE_FLAGS_ERROR([-fwrapv])
- AX_APPEND_COMPILE_FLAGS_ERROR([-fmudflapt])
- AC_LANG_POP([C++])
+# _APPEND_COMPILE_FLAGS_ERROR([-Wmissing-format-attribute])
+ _APPEND_COMPILE_FLAGS_ERROR([-Wno-attributes])
+ _APPEND_COMPILE_FLAGS_ERROR([-Wvarargs])
+ _APPEND_COMPILE_FLAGS_ERROR([-Waddress])
+ _APPEND_COMPILE_FLAGS_ERROR([-Warray-bounds])
+ _APPEND_COMPILE_FLAGS_ERROR([-Wchar-subscripts])
+ _APPEND_COMPILE_FLAGS_ERROR([-Wcomment])
+ _APPEND_COMPILE_FLAGS_ERROR([-Wctor-dtor-privacy])
+ _APPEND_COMPILE_FLAGS_ERROR([-Wfloat-equal])
+ _APPEND_COMPILE_FLAGS_ERROR([-Wformat=2])
+ _APPEND_COMPILE_FLAGS_ERROR([-Wformat-y2k])
+ _APPEND_COMPILE_FLAGS_ERROR([-Wmaybe-uninitialized])
+ _APPEND_COMPILE_FLAGS_ERROR([-Wmissing-field-initializers])
+ _APPEND_COMPILE_FLAGS_ERROR([-Wlogical-op])
+ _APPEND_COMPILE_FLAGS_ERROR([-Wnon-virtual-dtor])
+ _APPEND_COMPILE_FLAGS_ERROR([-Wnormalized=id])
+ _APPEND_COMPILE_FLAGS_ERROR([-Woverloaded-virtual])
+ _APPEND_COMPILE_FLAGS_ERROR([-Wpointer-arith])
+ AS_IF([test "x$MINGW" = xyes],
+ [_APPEND_COMPILE_FLAGS_ERROR([-Wno-suggest-attribute=const])
+ _APPEND_COMPILE_FLAGS_ERROR([-Wno-missing-noreturn])
+ _APPEND_COMPILE_FLAGS_ERROR([-Wmissing-noreturn])
+ _APPEND_COMPILE_FLAGS_ERROR([-Wno-suggest-attribute=noreturn])
+ _APPEND_COMPILE_FLAGS_ERROR([-Wno-error=suggest-attribute=noreturn])
+ _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([-Wswitch-enum])
+ _APPEND_COMPILE_FLAGS_ERROR([-Wtrampolines])
+ _APPEND_COMPILE_FLAGS_ERROR([-Wundef])
+ _APPEND_COMPILE_FLAGS_ERROR([-Wunsafe-loop-optimizations])
+ _APPEND_COMPILE_FLAGS_ERROR([-funsafe-loop-optimizations])
+ _APPEND_COMPILE_FLAGS_ERROR([-Wc++11-compat])
+ _APPEND_COMPILE_FLAGS_ERROR([-Weffc++])
+ _APPEND_COMPILE_FLAGS_ERROR([-fsanitize=address])
+ _APPEND_COMPILE_FLAGS_ERROR([-fsanitize=integer])
+ _APPEND_COMPILE_FLAGS_ERROR([-fsanitize=thread])
+ _APPEND_COMPILE_FLAGS_ERROR([-fsanitize=memory])
+ _APPEND_COMPILE_FLAGS_ERROR([-fsanitize=alignment])
+ _APPEND_COMPILE_FLAGS_ERROR([-fsanitize=bool])
+ _APPEND_COMPILE_FLAGS_ERROR([-fsanitize=bounds])
+ _APPEND_COMPILE_FLAGS_ERROR([-fsanitize=enum])
+ _APPEND_COMPILE_FLAGS_ERROR([-fsanitize=float-cast-overflow])
+ _APPEND_COMPILE_FLAGS_ERROR([-fsanitize=float-divide-by-zero])
+ _APPEND_COMPILE_FLAGS_ERROR([-fsanitize=integer-divide-by-zero])
+ _APPEND_COMPILE_FLAGS_ERROR([-fsanitize=null])
+ _APPEND_COMPILE_FLAGS_ERROR([-fsanitize=object-size])
+ _APPEND_COMPILE_FLAGS_ERROR([-fsanitize=return])
+ _APPEND_COMPILE_FLAGS_ERROR([-fsanitize=shift])
+ _APPEND_COMPILE_FLAGS_ERROR([-fsanitize=signed-integer-overflow])
+ _APPEND_COMPILE_FLAGS_ERROR([-fsanitize=unreachable])
+ _APPEND_COMPILE_FLAGS_ERROR([-fsanitize=unsigned-integer-overflow])
+ _APPEND_COMPILE_FLAGS_ERROR([-fsanitize=vla-bound])
+ _APPEND_COMPILE_FLAGS_ERROR([-fsanitize=vptr])
+ _APPEND_COMPILE_FLAGS_ERROR([-Wold-style-cast])
+ _APPEND_COMPILE_FLAGS_ERROR([-Wclobbered])
+ _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([-Wformat-security])
+ _APPEND_COMPILE_FLAGS_ERROR([-floop-parallelize-all])
+ _APPEND_COMPILE_FLAGS_ERROR([-fwrapv])
+ _APPEND_COMPILE_FLAGS_ERROR([-fmudflapt])
+ _APPEND_COMPILE_FLAGS_ERROR([-pipe])
+
+ AS_IF([test "x$ax_enable_debug" = xno],
+ [AS_IF([test "x$ac_cv_vcs_checkout" = xyes],
+ [AS_IF([test "x${target_os}" != "xmingw"],
+ [AS_IF([test "x$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])
+ #_APPEND_COMPILE_FLAGS_ERROR([--param=ssp-buffer-size=1])
+ _APPEND_COMPILE_FLAGS_ERROR([-fstack-protector-all])
+ ])])])])
+
+ AS_IF([test "x$ac_cv_warnings_as_errors" = xyes],
+ [AX_APPEND_FLAG([-Werror])])
+ AC_LANG_POP([C++])
])
+# All of the heavy lifting happens in _HARDEN_LINKER_FLAGS,
+# _HARDEN_CC_COMPILER_FLAGS, _HARDEN_CXX_COMPILER_FLAGS
AC_DEFUN([AX_HARDEN_COMPILER_FLAGS],
- [AC_PREREQ([2.63])dnl
- AC_REQUIRE([AX_HARDEN_CXX_COMPILER_FLAGS])
- AC_REQUIRE([AX_CC_OTHER_FLAGS])
- AC_REQUIRE([gl_VISIBILITY])
- AS_IF([test -n "$CFLAG_VISIBILITY"],[ CPPFLAGS="$CPPFLAGS $CFLAG_VISIBILITY" ])
- ])
+ [AC_PREREQ([2.63])dnl
+ AC_REQUIRE([_WARNINGS_AS_ERRORS])
+ AC_REQUIRE([AX_APPEND_LINK_FLAGS])
+ AC_REQUIRE([AX_COMPILER_VERSION])
+ AC_REQUIRE([AX_DEBUG])
+ AC_REQUIRE([AX_VCS_CHECKOUT])
- AC_DEFUN([AX_CC_OTHER_FLAGS],
- [AC_PREREQ([2.63])dnl
- AC_REQUIRE([AX_APPEND_COMPILE_FLAGS_ERROR])
- AC_REQUIRE([AX_HARDEN_CC_COMPILER_FLAGS])
- AC_LANG_PUSH([C])
- AX_APPEND_COMPILE_FLAGS_ERROR([-pipe])
- AC_LANG_POP([C])
- ])
+ AC_REQUIRE([gl_VISIBILITY])
+ AS_IF([test -n "$CFLAG_VISIBILITY"],[CPPFLAGS="$CPPFLAGS $CFLAG_VISIBILITY"])
+
+ AC_REQUIRE([_HARDEN_LINKER_FLAGS])
+ AC_REQUIRE([_HARDEN_CC_COMPILER_FLAGS])
+ AC_REQUIRE([_HARDEN_CXX_COMPILER_FLAGS])
+ ])