# ===========================================================================
-# http://www.gnu.org/software/autoconf-archive/ax_append_flag.html
+# https://github.com/BrianAker/ddm4/
# ===========================================================================
#
# SYNOPSIS
#
-# AX_HARDEN_COMPILER_FLAGS
+# AX_HARDEN_COMPILER_FLAGS()
+# AX_HARDEN_LINKER_FLAGS()
+# AX_HARDEN_CC_COMPILER_FLAGS()
+# AX_HARDEN_CXX_COMPILER_FLAGS()
#
# DESCRIPTION
#
# AX_APPEND_COMPILE_FLAGS([-pedantic]) -- ?
# AX_APPEND_COMPILE_FLAGS([-Wstack-protector]) -- Issues on 32bit compile
# AX_APPEND_COMPILE_FLAGS([-fstack-protector-all]) -- Issues on 32bit compile
+# AX_APPEND_COMPILE_FLAGS([-Wlong-long]) -- Don't turn on for compatibility issues memcached_stat_st
-#serial 1
+#serial 5
- AC_DEFUN([AX_HARDEN_C_COMPILER_FLAGS], [
- AC_REQUIRE([AX_APPEND_COMPILE_FLAGS])
- AC_REQUIRE([AX_CHECK_LINK_FLAG])
- AC_REQUIRE([AX_VCS_CHECKOUT])
+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])
- AC_LANG_PUSH([C])
- AX_APPEND_COMPILE_FLAGS([-O2])
- AX_APPEND_COMPILE_FLAGS([-Werror])
- AX_APPEND_COMPILE_FLAGS([-Wall])
- AX_APPEND_COMPILE_FLAGS([-Wextra])
- AX_APPEND_COMPILE_FLAGS([-std=c99])
- AX_APPEND_COMPILE_FLAGS([-Wbad-function-cast])
- AX_APPEND_COMPILE_FLAGS([-Wmissing-prototypes])
- AX_APPEND_COMPILE_FLAGS([-Wnested-externs])
- AX_APPEND_COMPILE_FLAGS([-Wold-style-definition])
- AX_APPEND_COMPILE_FLAGS([-Woverride-init])
- AX_APPEND_COMPILE_FLAGS([-Wstrict-prototypes])
- AC_LANG_POP
+ dnl If we are inside of VCS we append -Werror, otherwise we just use it to test other flags
+ AX_HARDEN_LIB=
+ ax_append_compile_link_flags_extra=
+ AS_IF([test "x$ac_cv_vcs_checkout" = "xyes"],
+ [AX_CHECK_LINK_FLAG([-Werror],
+ [AX_HARDEN_LIB="-Werror $AX_HARDEN_LIB"])
+ ],
+ [AX_CHECK_LINK_FLAG([-Werror],[
+ ax_append_compile_link_flags_extra='-Werror'
+ ])
+ ])
+
+ AX_CHECK_LINK_FLAG([-z relro -z now],
+ [AX_HARDEN_LIB="-z relro -z now $AX_HARDEN_LIB"],,
+ [$ax_append_compile_link_flags_extra])
+
+ AX_CHECK_LINK_FLAG([-pie],
+ [AX_HARDEN_LIB="-pie $AX_HARDEN_LIB"],,
+ [$ax_append_compile_link_flags_extra])
+
+ LIB="$LIB $AX_HARDEN_LIB"
+ ])
+
+ AC_DEFUN([AX_HARDEN_CC_COMPILER_FLAGS],
+ [AC_PREREQ([2.63])dnl
+ AC_REQUIRE([AX_APPEND_COMPILE_FLAGS])
+ AC_REQUIRE([AX_HARDEN_LINKER_FLAGS])
+
+ AC_LANG_PUSH([C])
+
+ ac_cv_warnings_as_errors=no
+ ax_append_compile_cflags_extra=
+ AS_IF([test "$ac_cv_vcs_checkout" = "yes"],[
+ AX_APPEND_COMPILE_FLAGS([-Werror])
+ ac_cv_warnings_as_errors=yes
+ ],[
+ AX_APPEND_COMPILE_FLAGS([-Werror],[ax_append_compile_cflags_extra])
+ ])
+
+ AX_APPEND_COMPILE_FLAGS([-g])
+ AS_IF([test "$ax_enable_debug" = "yes"], [
+ AX_APPEND_COMPILE_FLAGS([-ggdb],,[$ax_append_compile_cflags_extra])
+ AX_APPEND_COMPILE_FLAGS([-O0],,[$ax_append_compile_cflags_extra])
+ ],[
+ AX_APPEND_COMPILE_FLAGS([-O2],,[$ax_append_compile_cflags_extra])
+ ])
+
+ AX_APPEND_COMPILE_FLAGS([-fstack-check],,[$ax_append_compile_cflags_extra])
+AX_APPEND_COMPILE_FLAGS([-Wno-pragmas],,[$ax_append_compile_cflags_extra])
+
+ AX_APPEND_COMPILE_FLAGS([-Wall],,[$ax_append_compile_cflags_extra])
+ AX_APPEND_COMPILE_FLAGS([-Wextra],,[$ax_append_compile_cflags_extra])
+ AX_APPEND_COMPILE_FLAGS([-Wunknown-pragmas],,[$ax_append_compile_cflags_extra])
+ AX_APPEND_COMPILE_FLAGS([-Wthis-test-should-fail],,[$ax_append_compile_cflags_extra])
+AX_APPEND_COMPILE_FLAGS([-std=c99],,[$ax_append_compile_cflags_extra])
+ dnl Anything below this comment please keep sorted.
+AX_APPEND_COMPILE_FLAGS([--param=ssp-buffer-size=1],,[$ax_append_compile_cflags_extra])
+ dnl -Wmissing-format-attribute
+ AX_APPEND_COMPILE_FLAGS([-Wno-attributes],,[$ax_append_compile_cflags_extra])
+ AX_APPEND_COMPILE_FLAGS([-Waddress],,[$ax_append_compile_cflags_extra])
+ AX_APPEND_COMPILE_FLAGS([-Warray-bounds],,[$ax_append_compile_cflags_extra])
+AX_APPEND_COMPILE_FLAGS([-Wbad-function-cast],,[$ax_append_compile_cflags_extra])
+ dnl Not in use -Wc++-compat
+ AX_APPEND_COMPILE_FLAGS([-Wchar-subscripts],,[$ax_append_compile_cflags_extra])
+ AX_APPEND_COMPILE_FLAGS([-Wcomment],,[$ax_append_compile_cflags_extra])
+ AX_APPEND_COMPILE_FLAGS([-Wfloat-equal],,[$ax_append_compile_cflags_extra])
+ AX_APPEND_COMPILE_FLAGS([-Wformat-security],,[$ax_append_compile_cflags_extra])
+ AX_APPEND_COMPILE_FLAGS([-Wformat=2],,[$ax_append_compile_cflags_extra])
+ AX_APPEND_COMPILE_FLAGS([-Wlogical-op],,[$ax_append_compile_cflags_extra])
+ AX_APPEND_COMPILE_FLAGS([-Wmaybe-uninitialized],,[$ax_append_compile_cflags_extra])
+AX_APPEND_COMPILE_FLAGS([-Wmissing-field-initializers],,[$ax_append_compile_cflags_extra])
+ AS_IF([test "$MINGW" = "yes"],[
+ AX_APPEND_COMPILE_FLAGS([-Wno-missing-noreturn],,[$ax_append_compile_cflags_extra])
+ ],[
+ AX_APPEND_COMPILE_FLAGS([-Wmissing-noreturn],,[$ax_append_compile_cflags_extra])
+ ])
+ AX_APPEND_COMPILE_FLAGS([-Wmissing-prototypes],,[$ax_append_compile_cflags_extra])
+ AX_APPEND_COMPILE_FLAGS([-Wnested-externs],,[$ax_append_compile_cflags_extra])
+ AX_APPEND_COMPILE_FLAGS([-Wnormalized=id],,[$ax_append_compile_cflags_extra])
+ AX_APPEND_COMPILE_FLAGS([-Wold-style-definition],,[$ax_append_compile_cflags_extra])
+ AX_APPEND_COMPILE_FLAGS([-Woverride-init],,[$ax_append_compile_cflags_extra])
+ AX_APPEND_COMPILE_FLAGS([-Wpointer-arith],,[$ax_append_compile_cflags_extra])
+AX_APPEND_COMPILE_FLAGS([-Wpointer-sign],,[$ax_append_compile_cflags_extra])
+ AS_IF([test "$MINGW" = "yes"],[
+ AX_APPEND_COMPILE_FLAGS([-Wno-suggest-attribute=const],,[$ax_append_compile_cflags_extra])
+ AX_APPEND_COMPILE_FLAGS([-Wno-suggest-attribute=noreturn],,[$ax_append_compile_cflags_extra])
+ AX_APPEND_COMPILE_FLAGS([-Wno-suggest-attribute=pure],,[$ax_append_compile_cflags_extra])
+ AX_APPEND_COMPILE_FLAGS([-Wno-redundant-decls],,[$ax_append_compile_cflags_extra])
+ ],[
+ AX_APPEND_COMPILE_FLAGS([-Wredundant-decls],,[$ax_append_compile_cflags_extra])
])
+ AX_APPEND_COMPILE_FLAGS([-Wshadow],,[$ax_append_compile_cflags_extra])
+ AX_APPEND_COMPILE_FLAGS([-Wshorten-64-to-32],,[$ax_append_compile_cflags_extra])
+ AX_APPEND_COMPILE_FLAGS([-Wsign-compare],,[$ax_append_compile_cflags_extra])
+ AX_APPEND_COMPILE_FLAGS([-Wstrict-overflow=1],,[$ax_append_compile_cflags_extra])
+ AX_APPEND_COMPILE_FLAGS([-Wstrict-prototypes],,[$ax_append_compile_cflags_extra])
+ AX_APPEND_COMPILE_FLAGS([-Wswitch-enum],,[$ax_append_compile_cflags_extra])
+ AX_APPEND_COMPILE_FLAGS([-Wundef],,[$ax_append_compile_cflags_extra])
+ AX_APPEND_COMPILE_FLAGS([-Wunused],,[$ax_append_compile_cflags_extra])
+ AX_APPEND_COMPILE_FLAGS([-Wunused-result],,[$ax_append_compile_cflags_extra])
+ AX_APPEND_COMPILE_FLAGS([-Wunused-variable],,[$ax_append_compile_cflags_extra])
+ AX_APPEND_COMPILE_FLAGS([-Wwrite-strings],,[$ax_append_compile_cflags_extra])
+ AX_APPEND_COMPILE_FLAGS([-floop-parallelize-all],,[$ax_append_compile_cflags_extra])
+AX_APPEND_COMPILE_FLAGS([-fwrapv],,[$ax_append_compile_cflags_extra])
+ AC_LANG_POP
+ ])
- AC_DEFUN([AX_HARDEN_CC_COMPILER_FLAGS], [
- AC_REQUIRE([AX_HARDEN_C_COMPILER_FLAGS])
+ AC_DEFUN([AX_HARDEN_CXX_COMPILER_FLAGS],
+ [AC_PREREQ([2.63])dnl
+ AC_REQUIRE([AX_HARDEN_CC_COMPILER_FLAGS])
AC_LANG_PUSH([C++])
- AX_APPEND_COMPILE_FLAGS([-O2])
- AX_APPEND_COMPILE_FLAGS([-Werror])
- AX_APPEND_COMPILE_FLAGS([-Wall])
- AX_APPEND_COMPILE_FLAGS([-Wextra])
- AX_APPEND_COMPILE_FLAGS([-Wpragmas])
- AX_APPEND_COMPILE_FLAGS([--paramssp-buffer-size=1])
- AX_APPEND_COMPILE_FLAGS([-D_FORTIFY_SOURCE=2])
- AX_APPEND_COMPILE_FLAGS([-Waddress])
- AX_APPEND_COMPILE_FLAGS([-Warray-bounds])
- AX_APPEND_COMPILE_FLAGS([-Wchar-subscripts])
- AX_APPEND_COMPILE_FLAGS([-Wcomment])
- AX_APPEND_COMPILE_FLAGS([-Wctor-dtor-privacy])
- AX_APPEND_COMPILE_FLAGS([-Wfloat-equal])
- AX_APPEND_COMPILE_FLAGS([-Wformat=2])
- AX_APPEND_COMPILE_FLAGS([-Wlong-long])
- AX_APPEND_COMPILE_FLAGS([-Wmaybe-uninitialized])
- AX_APPEND_COMPILE_FLAGS([-Wmissing-field-initializers])
- AX_APPEND_COMPILE_FLAGS([-Wmissing-noreturn])
- AX_APPEND_COMPILE_FLAGS([-Wnon-virtual-dtor])
- AX_APPEND_COMPILE_FLAGS([-Wnormalized=id])
- AX_APPEND_COMPILE_FLAGS([-Woverloaded-virtual])
- AX_APPEND_COMPILE_FLAGS([-Wpointer-arith])
- AX_APPEND_COMPILE_FLAGS([-Wredundant-decls])
- AX_APPEND_COMPILE_FLAGS([-Wshadow])
- AX_APPEND_COMPILE_FLAGS([-Wshorten-64-to-32])
- AX_APPEND_COMPILE_FLAGS([-Wsign-compare])
- AX_APPEND_COMPILE_FLAGS([-Wstrict-overflow=1])
- AX_APPEND_COMPILE_FLAGS([-Wswitch-enum])
- AX_APPEND_COMPILE_FLAGS([-Wundef])
- AX_APPEND_COMPILE_FLAGS([-Wunused-result])
- AX_APPEND_COMPILE_FLAGS([-Wunused-variable])
- AX_APPEND_COMPILE_FLAGS([-Wwrite-strings])
- AX_APPEND_COMPILE_FLAGS([-floop-parallelize-all])
- AX_APPEND_COMPILE_FLAGS([-fwrapv])
- AX_APPEND_COMPILE_FLAGS([-ggdb])
- AX_CHECK_LINK_FLAG([-Werror])
- AX_CHECK_LINK_FLAG([-z relro -z now])
- AC_LANG_POP
+
+ ax_append_compile_cxxflags_extra=
+ AS_IF([test "$ac_cv_warnings_as_errors" = "yes"],[
+ AX_APPEND_COMPILE_FLAGS([-Werror])
+ ],[
+ AX_APPEND_COMPILE_FLAGS([-Werror],[ax_append_compile_cxxflags_extra])
+ ])
+
+ AX_APPEND_COMPILE_FLAGS([-g],,[$ax_append_compile_cxxflags_extra])
+ AS_IF([test "$ax_enable_debug" = "yes"], [
+ AX_APPEND_COMPILE_FLAGS([-O0],,[$ax_append_compile_cxxflags_extra])
+ AX_APPEND_COMPILE_FLAGS([-ggdb],,[$ax_append_compile_cxxflags_extra])
+ ],[
+ AX_APPEND_COMPILE_FLAGS([-O2],,[$ax_append_compile_cxxflags_extra])
+ AX_APPEND_COMPILE_FLAGS([-D_FORTIFY_SOURCE=2],,[$ax_append_compile_cxxflags_extra])
+ ])
+
+ AS_IF([test "$ac_cv_vcs_checkout" = "yes"], [
+ AX_APPEND_COMPILE_FLAGS([-Werror],,[$ax_append_compile_cxxflags_extra])
+ AX_APPEND_COMPILE_FLAGS([-fstack-check],,[$ax_append_compile_cxxflags_extra])
+ ],[
+ AX_APPEND_COMPILE_FLAGS([-Wno-pragmas],,[$ax_append_compile_cxxflags_extra])
+ ])
+
+ AX_APPEND_COMPILE_FLAGS([-Wall],,[$ax_append_compile_cxxflags_extra])
+ AX_APPEND_COMPILE_FLAGS([-Wextra],,[$ax_append_compile_cxxflags_extra])
+ AX_APPEND_COMPILE_FLAGS([-Wunknown-pragmas],,[$ax_append_compile_cxxflags_extra])
+AX_APPEND_COMPILE_FLAGS([-Wthis-test-should-fail],,[$ax_append_compile_cxxflags_extra])
+ dnl Anything below this comment please keep sorted.
+AX_APPEND_COMPILE_FLAGS([--param=ssp-buffer-size=1],,[$ax_append_compile_cxxflags_extra])
+ dnl -Wmissing-format-attribute
+ AX_APPEND_COMPILE_FLAGS([-Wno-attributes],,[$ax_append_compile_cxxflags_extra])
+ AX_APPEND_COMPILE_FLAGS([-Waddress],,[$ax_append_compile_cxxflags_extra])
+ AX_APPEND_COMPILE_FLAGS([-Warray-bounds],,[$ax_append_compile_cxxflags_extra])
+ AX_APPEND_COMPILE_FLAGS([-Wchar-subscripts],,[$ax_append_compile_cxxflags_extra])
+ AX_APPEND_COMPILE_FLAGS([-Wcomment],,[$ax_append_compile_cxxflags_extra])
+ AX_APPEND_COMPILE_FLAGS([-Wctor-dtor-privacy],,[$ax_append_compile_cxxflags_extra])
+ AX_APPEND_COMPILE_FLAGS([-Wfloat-equal],,[$ax_append_compile_cxxflags_extra])
+ AX_APPEND_COMPILE_FLAGS([-Wformat=2],,[$ax_append_compile_cxxflags_extra])
+ AX_APPEND_COMPILE_FLAGS([-Wmaybe-uninitialized],,[$ax_append_compile_cxxflags_extra])
+AX_APPEND_COMPILE_FLAGS([-Wmissing-field-initializers],,[$ax_append_compile_cxxflags_extra])
+ AS_IF([test "$MINGW" = "yes"],[
+ AX_APPEND_COMPILE_FLAGS([-Wno-missing-noreturn],,[$ax_append_compile_cxxflags_extra])
+ ],[
+ AX_APPEND_COMPILE_FLAGS([-Wmissing-noreturn],,[$ax_append_compile_cxxflags_extra])
+ ])
+ AX_APPEND_COMPILE_FLAGS([-Wlogical-op],,[$ax_append_compile_cxxflags_extra])
+ AX_APPEND_COMPILE_FLAGS([-Wnon-virtual-dtor],,[$ax_append_compile_cxxflags_extra])
+ AX_APPEND_COMPILE_FLAGS([-Wnormalized=id],,[$ax_append_compile_cxxflags_extra])
+ AX_APPEND_COMPILE_FLAGS([-Woverloaded-virtual],,[$ax_append_compile_cxxflags_extra])
+AX_APPEND_COMPILE_FLAGS([-Wpointer-arith],,[$ax_append_compile_cxxflags_extra])
+ AS_IF([test "$MINGW" = "yes"],[
+ AX_APPEND_COMPILE_FLAGS([-Wno-suggest-attribute=const],,[$ax_append_compile_cxxflags_extra])
+ AX_APPEND_COMPILE_FLAGS([-Wno-suggest-attribute=noreturn],,[$ax_append_compile_cxxflags_extra])
+ AX_APPEND_COMPILE_FLAGS([-Wno-error=suggest-attribute=noreturn],,[$ax_append_compile_cxxflags_extra])
+ AX_APPEND_COMPILE_FLAGS([-Wno-redundant-decls],,[$ax_append_compile_cxxflags_extra])
+ ],[
+ AX_APPEND_COMPILE_FLAGS([-Wredundant-decls],,[$ax_append_compile_cxxflags_extra])
+ ])
+ AX_APPEND_COMPILE_FLAGS([-Wshadow],,[$ax_append_compile_cxxflags_extra])
+ AX_APPEND_COMPILE_FLAGS([-Wshorten-64-to-32],,[$ax_append_compile_cxxflags_extra])
+ AX_APPEND_COMPILE_FLAGS([-Wsign-compare],,[$ax_append_compile_cxxflags_extra])
+ AX_APPEND_COMPILE_FLAGS([-Wstrict-overflow=1],,[$ax_append_compile_cxxflags_extra])
+ AX_APPEND_COMPILE_FLAGS([-Wswitch-enum],,[$ax_append_compile_cxxflags_extra])
+ AX_APPEND_COMPILE_FLAGS([-Wundef],,[$ax_append_compile_cxxflags_extra])
+ AX_APPEND_COMPILE_FLAGS([-Wc++11-compat],,[$ax_append_compile_cxxflags_extra])
+ AX_APPEND_COMPILE_FLAGS([-Wunused],,[$ax_append_compile_cxxflags_extra])
+ AX_APPEND_COMPILE_FLAGS([-Wunused-result],,[$ax_append_compile_cxxflags_extra])
+ AX_APPEND_COMPILE_FLAGS([-Wunused-variable],,[$ax_append_compile_cxxflags_extra])
+ AX_APPEND_COMPILE_FLAGS([-Wwrite-strings],,[$ax_append_compile_cxxflags_extra])
+ AX_APPEND_COMPILE_FLAGS([-Wformat-security],,[$ax_append_compile_cxxflags_extra])
+ AX_APPEND_COMPILE_FLAGS([-floop-parallelize-all],,[$ax_append_compile_cxxflags_extra])
+AX_APPEND_COMPILE_FLAGS([-fwrapv],,[$ax_append_compile_cxxflags_extra])
+ AC_LANG_POP
])
+
+ AC_DEFUN([AX_HARDEN_COMPILER_FLAGS],
+ [AC_PREREQ([2.63])dnl
+ AC_REQUIRE([AX_HARDEN_CXX_COMPILER_FLAGS])
+ AC_REQUIRE([AX_CC_OTHER_FLAGS])
+ gl_VISIBILITY
+ AS_IF([test -n "$CFLAG_VISIBILITY"], [ CPPFLAGS="$CPPFLAGS $CFLAG_VISIBILITY" ])
+ ])
+
+ AC_DEFUN([AX_CC_OTHER_FLAGS],
+ [AC_PREREQ([2.63])dnl
+ AC_REQUIRE([AX_APPEND_COMPILE_FLAGS])
+ AC_REQUIRE([AX_HARDEN_CC_COMPILER_FLAGS])
+
+ AC_LANG_PUSH([C])
+ AX_APPEND_COMPILE_FLAGS([-pipe],,[$ax_append_compile_cflags_extra])
+ AC_LANG_POP
+ ])
projects / m6w6 / libmemcached / blobdiff