GLIBC_PROVIDES dnl See aclocal.m4 in the top level source directory. # Local configure fragment for sysdeps/x86. if test x"$enable_cet" = xyes; then # Check if CET can be enabled. AC_CACHE_CHECK(whether CET can be enabled, libc_cv_x86_cet_available, [dnl cat > conftest.c <&AS_MESSAGE_LOG_FD); then libc_cv_x86_cet_available=yes else libc_cv_x86_cet_available=no fi rm -rf conftest*]) if test $libc_cv_x86_cet_available = yes; then enable_cet=yes else if test x"$enable_cet" = xdefault; then enable_cet=no else AC_MSG_ERROR([$CC doesn't support CET]) fi fi fi if test $enable_cet = yes; then # Check if assembler supports CET. AC_CACHE_CHECK(whether $AS supports CET, libc_cv_x86_cet_as, [dnl cat > conftest.s <&AS_MESSAGE_LOG_FD); then libc_cv_x86_cet_as=yes else libc_cv_x86_cet_as=no fi rm -rf conftest*]) if test $libc_cv_x86_cet_as = no; then AC_MSG_ERROR([$AS doesn't support CET]) fi fi LIBC_CONFIG_VAR([enable-cet], [$enable_cet])