From: Jan Beulich <JBeulich@suse.com>

sed's -E option may not be supported by older distros. As there's no
point using sed here at all, use just shell mechanisms to establish the
variable values, starting from the stem instead of the full target.

Signed-off-by: Jan Beulich <jbeulich@suse.com>
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
---
 Makefile | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/Makefile b/Makefile
index b5a6d602b2..90e05ac409 100644
--- a/Makefile
+++ b/Makefile
@@ -256,8 +256,7 @@ GENERATED_FILES += $(KEYCODEMAP_FILES)
 
 ui/input-keymap-%.c: $(KEYCODEMAP_GEN) $(KEYCODEMAP_CSV) $(SRC_PATH)/ui/Makefile.objs
 	$(call quiet-command,\
-	    src=$$(echo $@ | sed -E -e "s,^ui/input-keymap-(.+)-to-(.+)\.c$$,\1,") && \
-	    dst=$$(echo $@ | sed -E -e "s,^ui/input-keymap-(.+)-to-(.+)\.c$$,\2,") && \
+	    stem=$* && src=$${stem%-to-*} dst=$${stem#*-to-} && \
 	    test -e $(KEYCODEMAP_GEN) && \
 	    $(PYTHON) $(KEYCODEMAP_GEN) \
 	          --lang glib2 \
-- 
2.14.3