allow to build with older sed

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>

diff --git a/Makefile b/Makefile
index b5a6d602b21e1e03b816ed6d85cdcf5e744eac18..90e05ac40939d04df8fa45c9515cdc36a67aff09 100644 (file)
--- 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 \