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Enable link time optimization only when optimizing

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Because it is quite slow, skip it when 'optimize' flag is 'no'

No functional change.
This commit is contained in:
Marco Costalba
2012-09-09 10:02:11 +02:00
parent 2379312028
commit 6e840f8033
1 changed files with 7 additions and 5 deletions
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12
src/Makefile
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@@ -321,11 +321,13 @@ endif
### This is a mix of compile and link time options because the lto link phase
### needs access to the optimization flags.
ifeq ($(comp),gcc)
GCC_MAJOR := `$(CXX) -dumpversion | cut -f1 -d.`
GCC_MINOR := `$(CXX) -dumpversion | cut -f2 -d.`
ifeq (1,$(shell expr \( $(GCC_MAJOR) \> 4 \) \| \( $(GCC_MAJOR) \= 4 \& $(GCC_MINOR) \>= 5 \)))
CXXFLAGS += -flto
LDFLAGS += $(CXXFLAGS)
ifeq ($(optimize),yes)
GCC_MAJOR := `$(CXX) -dumpversion | cut -f1 -d.`
GCC_MINOR := `$(CXX) -dumpversion | cut -f2 -d.`
ifeq (1,$(shell expr \( $(GCC_MAJOR) \> 4 \) \| \( $(GCC_MAJOR) \= 4 \& $(GCC_MINOR) \>= 5 \)))
CXXFLAGS += -flto
LDFLAGS += $(CXXFLAGS)
endif
endif
endif