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Pass flags to clang and fix POSIX non-compliance #123

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Pass flags to clang and fix POSIX non-compliance #123

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9 changes: 8 additions & 1 deletion src/makefile
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Original file line number Diff line number Diff line change
Expand Up @@ -95,15 +95,22 @@ CC=c99
endif

# Test for GCC
ifneq (,$(findstring gcc,$(shell $(CC) 2>&1)))

GCC=$(findstring gcc,$(shell $(CC) 2>&1))
CLANG=$(findstring clang,$(shell $(CC) 2>&1))

ifneq (,$(or $(GCC), $(CLANG)))
CC=cc
GCCFLAGS=-std=c99 -Wall -Wno-parentheses -fno-strict-aliasing -Wp,-D_FORTIFY_SOURCE=2

ifneq (,$(GCC))
# link-time optimizer only on GCC 4.6+
GCC_VERSION_GT_46=$(shell expr `$(CC) -dumpversion` ">=" 4.6)
ifeq ($(GCC_VERSION_GT_46),1)
GCCFLAGS+= -flto=auto -ffat-lto-objects
LDFLAGS=-flto=auto
endif
endif

endif

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