Retro68/binutils/config/mh-darwin

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2012-03-26 19:18:29 +00:00
# The -mdynamic-no-pic ensures that the compiler executable is built without
# position-independent-code -- the usual default on Darwin. This fix speeds
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# compiles by 3-5%. Don't add it if the compiler doesn't also support
# -mno-dynamic-no-pic to undo it.
DARWIN_MDYNAMIC_NO_PIC := \
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`case ${host} in i?86-*-darwin* | powerpc-*-darwin*) \
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$(CC) -S -xc /dev/null -o /dev/null -mno-dynamic-no-pic 2>/dev/null \
&& echo -mdynamic-no-pic ;; esac`
DARWIN_GCC_MDYNAMIC_NO_PIC := \
`case ${host} in i?86-*-darwin* | powerpc-*-darwin*) \
$(CC) -S -xc /dev/null -o /dev/null -mno-dynamic-no-pic 2>/dev/null \
|| echo -mdynamic-no-pic ;; esac`
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# ld on Darwin versions >= 10.7 defaults to PIE executables. Disable this for
# gcc components, since it is incompatible with our pch implementation.
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DARWIN_NO_PIE := `case ${host} in *-*-darwin[1][1-9]*) echo -Wl,-no_pie ;; esac;`
BOOT_CFLAGS += $(DARWIN_MDYNAMIC_NO_PIC)
BOOT_LDFLAGS += $(DARWIN_NO_PIE)
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# Similarly, for cross-compilation.
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STAGE1_CFLAGS += $(DARWIN_MDYNAMIC_NO_PIC)
STAGE1_LDFLAGS += $(DARWIN_NO_PIE)
# Without -mno-dynamic-no-pic support, add -mdynamic-no-pic just to later
# stages when we know it is built with gcc.
STAGE2_CFLAGS += $(DARWIN_GCC_MDYNAMIC_NO_PIC)
STAGE3_CFLAGS += $(DARWIN_GCC_MDYNAMIC_NO_PIC)
STAGE4_CFLAGS += $(DARWIN_GCC_MDYNAMIC_NO_PIC)