More portable use of grep
$(MKDEPENDC) -f .depend $(MKDEPENDC_OPTS) -- $(CC_OPTS) -- $(MKDEPENDC_SRCS)
endif
ifneq "$(MKDEPENDHS_SRCS)" ""
- @if echo $(notdir $(MKDEPENDHS)) | grep -s ghc ; then \
+ @if ( echo $(notdir $(MKDEPENDHS)) | grep ghc >/dev/null 2>&1 ); then \
echo $(MKDEPENDHS) -M -optdep-f -optdep.depend $(foreach way,$(WAYS),-optdep-s -optdep$(way)) $(MKDEPENDHS_OPTS) $(HC_OPTS) $(MKDEPENDHS_SRCS) ; \
$(MKDEPENDHS) -M -optdep-f -optdep.depend $(foreach way,$(WAYS),-optdep-s -optdep$(way)) $(MKDEPENDHS_OPTS) $(HC_OPTS) $(MKDEPENDHS_SRCS) ; \
else \