[PATCH vkd3d v2 2/5] build: Make the sed(1) command more portable.

[Chip Davis]

BSD sed(1) requires an argument after -i giving the suffix to put on the
backup it makes. Also, the regular expression given doesn't seem to work
for me. This command should work everywhere.

Signed-off-by: Chip Davis <cdavis at codeweavers.com>
---
 Makefile.am | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/Makefile.am b/Makefile.am
index 14f2d51..e64acb7 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -150,8 +150,9 @@ vkd3d_v_widl_1 =
 EXTRA_DIST += $(widl_headers) $(widl_headers:.h=.idl)
 $(widl_headers): %.h: %.idl
 if HAVE_WIDL
-	$(VKD3D_V_WIDL)$(WIDL) -o $@ $<
-	sed -e '/#include <\(rpc.h\|rpcndr.h\)>/d' -i $@
+	$(VKD3D_V_WIDL)$(WIDL) -o $@.tmp $<
+	$(SED) -e '/#include <rpc.h>/d' -e '/#include <rpcndr.h>/d' <$@.tmp >$@
+	$(RM) -f $@.tmp
 else
 	echo "widl is required to generate $<"
 endif
-- 
2.18.0