[cfe-users] Symbol Visibility support?

[Jeffrey Walton]

I have the following in my makefile to determine when I should use
GCC's visibility features. I'd like to add the same for Clang.

When did Clang add visibility support? What version did it occur?

Thanks in advance.

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# https://gcc.gnu.org/wiki/Visibility
GCC40_OR_LATER = $(shell $(CXX) -v 2>&1 | $(EGREP) -c "^gcc version ([4-9])")
ifneq ($(GCC40_OR_LATER),0)
  CXXFLAGS += -fvisibility=hidden -fvisibility-inlines-hidden
endif