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make: optionally add gcc lto flags

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This commit enables building using link time optimization when
specifying "LTO=yes" in the application's Makefile.
This commit is contained in:
Kaspar Schleiser 2014-11-03 11:50:01 +01:00
parent 43ef437e4b
commit 9cf054fe96
1 changed files with 6 additions and 0 deletions
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6
Makefile.cflags
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@ -41,3 +41,9 @@ endif
# Unwanted flags for c++
CXXUWFLAGS += -std=%
ifeq ($(LTO),yes)
LTOFLAGS = -flto -ffat-lto-objects
CFLAGS += ${LTOFLAGS}
LINKFLAGS += ${LTOFLAGS}
endif