From: Ruben Undheim <ruben.undheim@gmail.com>
Date: Sun, 19 Aug 2018 23:03:51 +0200
Subject: Do not show g++ build flags in Version string

---
 Makefile | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

--- a/Makefile
+++ b/Makefile
@@ -762,8 +762,7 @@ endif
 	$(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)))
+YOSYS_VER_STR := Yosys $(YOSYS_VER) (git sha1 $(GIT_REV))
 
 kernel/version_$(GIT_REV).cc: $(YOSYS_SRC)/Makefile
 	$(P) rm -f kernel/version_*.o kernel/version_*.d kernel/version_*.cc
@@ -777,8 +776,10 @@ CXXFLAGS_NOVERIFIC = $(CXXFLAGS)
 LIBS_NOVERIFIC = $(LIBS)
 endif
 
+CXXFLAGS_YOSYS_CONFIG = $(filter-out -fdebug-prefix% -ffile-prefix-map%,$(CXXFLAGS_NOVERIFIC))
+
 $(PROGRAM_PREFIX)yosys-config: misc/yosys-config.in $(YOSYS_SRC)/Makefile
-	$(P) $(SED) -e 's#@CXXFLAGS@#$(subst -Ilibs/dlfcn-win32,,$(subst -I. -I"$(YOSYS_SRC)",-I"$(DATDIR)/include",$(strip $(CXXFLAGS_NOVERIFIC))))#;' \
+	$(P) $(SED) -e 's#@CXXFLAGS@#$(subst -Ilibs/dlfcn-win32,,$(subst -I. -I"$(YOSYS_SRC)",-I"$(DATDIR)/include",$(strip $(CXXFLAGS_YOSYS_CONFIG))))#;' \
 			-e 's#@CXX@#$(strip $(CXX))#;' -e 's#@LINKFLAGS@#$(strip $(LINKFLAGS) $(PLUGIN_LINKFLAGS))#;' -e 's#@LIBS@#$(strip $(LIBS_NOVERIFIC) $(PLUGIN_LIBS))#;' \
 			-e 's#@BINDIR@#$(strip $(BINDIR))#;' -e 's#@DATDIR@#$(strip $(DATDIR))#;' < $< > $(PROGRAM_PREFIX)yosys-config
 	$(Q) chmod +x $(PROGRAM_PREFIX)yosys-config
