Bug 1475650: Use llvm-lib when linking with lld-link. r=froydnj

js/src/old-configure.in

@@ -677,8 +677,16 @@ case "$target" in
         if test "$AS_BIN"; then
             AS="$(basename "$AS_BIN")"
         fi
-        AR='lib'
-        AR_FLAGS='-NOLOGO -OUT:$@'
+        case "$LINKER" in
+        *lld*)
+            AR='llvm-lib'
+            AR_FLAGS='-llvmlibthin -out:$@'
+            ;;
+        *)
+            AR='lib'
+            AR_FLAGS='-NOLOGO -OUT:$@'
+            ;;
+        esac
         AR_EXTRACT=
         RANLIB='echo not_ranlib'
         STRIP='echo not_strip'

old-configure.in

@@ -889,8 +889,16 @@ case "$target" in
         if test "$AS_BIN"; then
             AS="$(basename "$AS_BIN")"
         fi
-        AR='lib'
-        AR_FLAGS='-NOLOGO -OUT:$@'
+        case "$LINKER" in
+        *lld*)
+            AR='llvm-lib'
+            AR_FLAGS='-llvmlibthin -out:$@'
+            ;;
+        *)
+            AR='lib'
+            AR_FLAGS='-NOLOGO -OUT:$@'
+            ;;
+        esac
         AR_EXTRACT=
         RANLIB='echo not_ranlib'
         STRIP='echo not_strip'