diff --git a/libltdl/config/ltmain.sh b/libltdl/config/ltmain.sh
index 63ae69d..9ae038c 100644
--- a/libltdl/config/ltmain.sh
+++ b/libltdl/config/ltmain.sh
@@ -5851,9 +5851,10 @@ func_mode_link ()
       # -tp=*                Portland pgcc target processor selection
       # --sysroot=*          for sysroot support
       # -O*, -flto*, -fwhopr*, -fuse-linker-plugin GCC link-time optimization
+      # -stdlib=*            select c++ std lib with clang
       -64|-mips[0-9]|-r[0-9][0-9]*|-xarch=*|-xtarget=*|+DA*|+DD*|-q*|-m*| \
       -t[45]*|-txscale*|-p|-pg|--coverage|-fprofile-*|-F*|@*|-tp=*|--sysroot=*| \
-      -O*|-flto*|-fwhopr*|-fuse-linker-plugin)
+      -O*|-flto*|-fwhopr*|-fuse-linker-plugin|-stdlib=*)
         func_quote_for_eval "$arg"
 	arg="$func_quote_for_eval_result"
         func_append compile_command " $arg"
diff --git a/configure b/configure
index a1ef3e3..782d28a 100755
--- a/configure
+++ b/configure
@@ -7765,7 +7765,7 @@ $as_echo "$lt_cv_ld_force_load" >&6; }
       case ${MACOSX_DEPLOYMENT_TARGET-10.0},$host in
 	10.0,*86*-darwin8*|10.0,*-darwin[91]*)
 	  _lt_dar_allow_undefined='${wl}-undefined ${wl}dynamic_lookup' ;;
-	10.[012]*)
+	10.[012][,.]*)
 	  _lt_dar_allow_undefined='${wl}-flat_namespace ${wl}-undefined ${wl}suppress' ;;
 	10.*)
 	  _lt_dar_allow_undefined='${wl}-undefined ${wl}dynamic_lookup' ;;
diff --git a/libltdl/configure b/libltdl/configure
index f18f272..fef1137 100755
--- a/libltdl/configure
+++ b/libltdl/configure
@@ -6978,7 +6978,7 @@ $as_echo "$lt_cv_ld_force_load" >&6; }
       case ${MACOSX_DEPLOYMENT_TARGET-10.0},$host in
 	10.0,*86*-darwin8*|10.0,*-darwin[91]*)
 	  _lt_dar_allow_undefined='${wl}-undefined ${wl}dynamic_lookup' ;;
-	10.[012]*)
+	10.[012][,.]*)
 	  _lt_dar_allow_undefined='${wl}-flat_namespace ${wl}-undefined ${wl}suppress' ;;
 	10.*)
 	  _lt_dar_allow_undefined='${wl}-undefined ${wl}dynamic_lookup' ;;
diff --git a/libltdl/m4/libtool.m4 b/libltdl/m4/libtool.m4
index 44e0ecf..4adcf73 100644
--- a/libltdl/m4/libtool.m4
+++ b/libltdl/m4/libtool.m4
@@ -1052,7 +1052,7 @@ _LT_EOF
       case ${MACOSX_DEPLOYMENT_TARGET-10.0},$host in
 	10.0,*86*-darwin8*|10.0,*-darwin[[91]]*)
 	  _lt_dar_allow_undefined='${wl}-undefined ${wl}dynamic_lookup' ;;
-	10.[[012]]*)
+	10.[[012]][[,.]]*)
 	  _lt_dar_allow_undefined='${wl}-flat_namespace ${wl}-undefined ${wl}suppress' ;;
 	10.*)
 	  _lt_dar_allow_undefined='${wl}-undefined ${wl}dynamic_lookup' ;;