Added YOSYS_VER_STR make variable

diff --git a/Makefile b/Makefile
index 1785904a579cb7002e551f662fed4265f06d7d51..c61e4ddfaf46de9d2278b8c23fe23cfbbf5698b2 100644 (file)
--- a/Makefile
+++ b/Makefile
@@ -370,10 +370,12 @@ libyosys.so: $(filter-out kernel/driver.o,$(OBJS))
        $(Q) mkdir -p $(dir $@)
        $(P) $(CXX) -o $@ -c $(CPPFLAGS) $(CXXFLAGS) $<
 
+YOSYS_VER_STR := Yosys $(YOSYS_VER) (git sha1 $(GIT_REV), $(notdir $(CXX)) $(shell \
+               $(CXX) --version | tr ' ()' '\n' | grep '^[0-9]' | head -n1) $(filter -f% -m% -O% -DNDEBUG,$(CXXFLAGS)))
+
 kernel/version_$(GIT_REV).cc: $(YOSYS_SRC)/Makefile
        $(P) rm -f kernel/version_*.o kernel/version_*.d kernel/version_*.cc
-       $(Q) mkdir -p kernel && echo "namespace Yosys { extern const char *yosys_version_str; const char *yosys_version_str=\"Yosys $(YOSYS_VER) (git sha1 $(GIT_REV), $(notdir $(CXX)) ` \
-                       $(CXX) --version | tr ' ()' '\n' | grep '^[0-9]' | head -n1` $(filter -f% -m% -O% -DNDEBUG,$(CXXFLAGS)))\"; }" > kernel/version_$(GIT_REV).cc
+       $(Q) mkdir -p kernel && echo "namespace Yosys { extern const char *yosys_version_str; const char *yosys_version_str=\"$(YOSYS_VER_STR)\"; }" > kernel/version_$(GIT_REV).cc
 
 yosys-config: misc/yosys-config.in
        $(P) $(SED) -e 's#@CXXFLAGS@#$(subst -I. -I"$(YOSYS_SRC)",-I"$(DATDIR)/include",$(CXXFLAGS))#;' \