| # The -mdynamic-no-pic ensures that the compiler executable is built without |
| # position-independent-code -- the usual default on Darwin. This fix speeds |
| # 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 := \ |
| `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` |
| 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` |
| |
| # ld on Darwin versions >= 10.7 defaults to PIE executables. Disable this for |
| # gcc components, since it is incompatible with our pch implementation. |
| 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) |
| |
| # Similarly, for cross-compilation. |
| 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) |
