diff --git a/configure b/configure index 68228fca3..33947f00e 100755 --- a/configure +++ b/configure @@ -31043,6 +31043,77 @@ else $as_nop fi +else $as_nop + : +fi + + { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether the linker accepts -Wl,-z,now" >&5 +printf %s "checking whether the linker accepts -Wl,-z,now... " >&6; } +if test ${ax_cv_check_ldflags___Wl__z_now+y} +then : + printf %s "(cached) " >&6 +else $as_nop + + ax_check_save_flags=$LDFLAGS + LDFLAGS="$LDFLAGS -Wl,-z,now" + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ + +int +main (void) +{ + + ; + return 0; +} +_ACEOF +if ac_fn_c_try_link "$LINENO" +then : + ax_cv_check_ldflags___Wl__z_now=yes +else $as_nop + ax_cv_check_ldflags___Wl__z_now=no +fi +rm -f core conftest.err conftest.$ac_objext conftest.beam \ + conftest$ac_exeext conftest.$ac_ext + LDFLAGS=$ax_check_save_flags +fi +{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ax_cv_check_ldflags___Wl__z_now" >&5 +printf "%s\n" "$ax_cv_check_ldflags___Wl__z_now" >&6; } +if test x"$ax_cv_check_ldflags___Wl__z_now" = xyes +then : + +if test ${LDFLAGS+y} +then : + + case " $LDFLAGS " in #( + *" -Wl,-z,now "*) : + { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: : LDFLAGS already contains -Wl,-z,now"; } >&5 + (: LDFLAGS already contains -Wl,-z,now) 2>&5 + ac_status=$? + printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 + test $ac_status = 0; } ;; #( + *) : + + as_fn_append LDFLAGS " -Wl,-z,now" + { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: : LDFLAGS=\"\$LDFLAGS\""; } >&5 + (: LDFLAGS="$LDFLAGS") 2>&5 + ac_status=$? + printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 + test $ac_status = 0; } + ;; +esac + +else $as_nop + + LDFLAGS=-Wl,-z,now + { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: : LDFLAGS=\"\$LDFLAGS\""; } >&5 + (: LDFLAGS="$LDFLAGS") 2>&5 + ac_status=$? + printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 + test $ac_status = 0; } + +fi + else $as_nop : fi diff --git a/configure.ac b/configure.ac index b58f142b5..b9722ed37 100644 --- a/configure.ac +++ b/configure.ac @@ -4708,6 +4708,7 @@ if test "$enable_hardening" != "no"; then AX_APPEND_FLAG([-Wc,-fstack-clash-protection], [SSP_LDFLAGS]) ]) AX_CHECK_LINK_FLAG([-Wl,-z,relro], [AX_APPEND_FLAG([-Wl,-z,relro], [LDFLAGS])]) + AX_CHECK_LINK_FLAG([-Wl,-z,now], [AX_APPEND_FLAG([-Wl,-z,now], [LDFLAGS])]) AX_CHECK_LINK_FLAG([-Wl,-z,noexecstack], [AX_APPEND_FLAG([-Wl,-z,noexecstack], [LDFLAGS])]) fi