2015-10-18 Iain Sandoe <iain@codesourcery.com>
+ * config/darwin.h (TARGET_SYSTEM_ROOT): Remove this from here,
+ (HAVE_LD_SYSROOT): New. (SYSROOT_SPEC): New.
+ (LINK_SYSROOT_SPEC): Revise to remove the default for target sysroot.
+ (STANDARD_STARTFILE_PREFIX_1): New.
+ (STANDARD_STARTFILE_PREFIX_2): New.
+
+2015-10-18 Iain Sandoe <iain@codesourcery.com>
+
* config/darwin-driver.c (darwin_default_min_version): Refactor code.
(darwin_driver_init): Note a version-min when provided on the c/l.
* config/darwin.h (%darwin_minversion): Remove.
#undef LINK_GCC_C_SEQUENCE_SPEC
#define LINK_GCC_C_SEQUENCE_SPEC "%G %L"
-#ifdef TARGET_SYSTEM_ROOT
-#define LINK_SYSROOT_SPEC \
- "%{isysroot*:-syslibroot %*;:-syslibroot " TARGET_SYSTEM_ROOT "}"
-#else
+/* ld64 supports a sysroot, it just has a different name and there's no easy
+ way to check for it at config time. */
+#undef HAVE_LD_SYSROOT
+#define HAVE_LD_SYSROOT 1
+/* It seems the only (working) way to get a space after %R is to append a
+ dangling '/'. */
+#define SYSROOT_SPEC "%{!isysroot*:-syslibroot %R/ }"
+
+/* Do the same as clang, for now, and insert the sysroot for ld when an
+ isysroot is specified. */
#define LINK_SYSROOT_SPEC "%{isysroot*:-syslibroot %*}"
-#endif
+
+/* Suppress the addition of extra prefix paths when a sysroot is in use. */
+#define STANDARD_STARTFILE_PREFIX_1 ""
+#define STANDARD_STARTFILE_PREFIX_2 ""
#define DARWIN_PIE_SPEC "%{fpie|pie|fPIE:}"