1 files changed, 46 insertions, 1 deletions

diff --git a/configure b/configure
index 767d1da00..adcd6162b 100755
--- a/configure
+++ b/configure
@@ -682,6 +682,7 @@ PKG_CONFIG_PATH
 PKG_CONFIG
 HAVE_APPARMOR
 HAVE_IDS
+DEPS_CFLAGS
 OBJEXT
 EXEEXT
 ac_ct_CC
@@ -3270,8 +3271,51 @@ ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $
 ac_compiler_gnu=$ac_cv_c_compiler_gnu
 
 
-HAVE_SPECTRE="no"
+DEPS_CFLAGS=""
+
+
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether C compiler accepts -MMD -MP" >&5
+printf %s "checking whether C compiler accepts -MMD -MP... " >&6; }
+if test ${ax_cv_check_cflags___MMD__MP+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+
+  ax_check_save_flags=$CFLAGS
+  CFLAGS="$CFLAGS  -MMD -MP"
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+int
+main (void)
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"
+then :
+  ax_cv_check_cflags___MMD__MP=yes
+else $as_nop
+  ax_cv_check_cflags___MMD__MP=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
+  CFLAGS=$ax_check_save_flags
+fi
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ax_cv_check_cflags___MMD__MP" >&5
+printf "%s\n" "$ax_cv_check_cflags___MMD__MP" >&6; }
+if test "x$ax_cv_check_cflags___MMD__MP" = xyes
+then :
+
+        DEPS_CFLAGS="$DEPS_CFLAGS -MMD -MP"
+
+else $as_nop
+  :
+fi
 
+
+HAVE_SPECTRE="no"
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether C compiler accepts -mindirect-branch=thunk" >&5
 printf %s "checking whether C compiler accepts -mindirect-branch=thunk... " >&6; }
 if test ${ax_cv_check_cflags___mindirect_branch_thunk+y}
@@ -5311,6 +5355,7 @@ Compile options:
    CPPFLAGS: $CPPFLAGS
    LDFLAGS: $LDFLAGS
    EXTRA_CFLAGS: $EXTRA_CFLAGS
+   DEPS_CFLAGS: $DEPS_CFLAGS
    EXTRA_LDFLAGS: $EXTRA_LDFLAGS
    LIBS: $LIBS
    fatal warnings: $HAVE_FATAL_WARNINGS