[PATCH 3/13] aarch64 musl support

gcc/Changelog:

2015-05-27  Gregor Richards  <gregor.richards@uwaterloo.ca>
	    Szabolcs Nagy  <szabolcs.nagy@arm.com>

	* config/aarch64/aarch64-linux.h (MUSL_DYNAMIC_LINKER): Define.


Co-Authored-By: Szabolcs Nagy <szabolcs.nagy@arm.com>

From-SVN: r223766

gcc/ChangeLog

+2015-05-27  Gregor Richards  <gregor.richards@uwaterloo.ca>
+	    Szabolcs Nagy  <szabolcs.nagy@arm.com>
+
+	* config/aarch64/aarch64-linux.h (MUSL_DYNAMIC_LINKER): Define.
+
 2015-05-27  Jason Merrill  <jason@redhat.com>
 
 	PR bootstrap/66304

gcc/config/aarch64/aarch64-linux.h

@@ -23,6 +23,9 @@
 
 #define GLIBC_DYNAMIC_LINKER "/lib/ld-linux-aarch64%{mbig-endian:_be}%{mabi=ilp32:_ilp32}.so.1"
 
+#undef MUSL_DYNAMIC_LINKER
+#define MUSL_DYNAMIC_LINKER "/lib/ld-musl-aarch64%{mbig-endian:_be}%{mabi=ilp32:_ilp32}.so.1"
+
 #undef  ASAN_CC1_SPEC
 #define ASAN_CC1_SPEC "%{%:sanitize(address):-funwind-tables}"