Fix config_brpc.sh

config_brpc.sh

@@ -130,18 +130,18 @@ OPENSSL_HDR=$(find_dir_of_header_or_die openssl/ssl.h)
 STATIC_LINKINGS=
 DYNAMIC_LINKINGS="-lpthread -lssl -lcrypto -ldl -lz"
 if [ "$SYSTEM" = "Linux" ]; then
-	DYNAMIC_LINKINGS+=" -lrt"
+    DYNAMIC_LINKINGS="$DYNAMIC_LINKINGS -lrt"
 fi
 if [ "$SYSTEM" = "Darwin" ]; then
-	DYNAMIC_LINKINGS+=" -framework CoreFoundation"
-	DYNAMIC_LINKINGS+=" -framework CoreGraphics"
-	DYNAMIC_LINKINGS+=" -framework CoreData"
-	DYNAMIC_LINKINGS+=" -framework CoreText"
-	DYNAMIC_LINKINGS+=" -framework Security"
-	DYNAMIC_LINKINGS+=" -framework Foundation"
-	DYNAMIC_LINKINGS+=" -Wl,-U,_MallocExtension_ReleaseFreeMemory"
-	DYNAMIC_LINKINGS+=" -Wl,-U,_ProfilerStart"
-	DYNAMIC_LINKINGS+=" -Wl,-U,_ProfilerStop"
+	DYNAMIC_LINKINGS="$DYNAMIC_LINKINGS -framework CoreFoundation"
+	DYNAMIC_LINKINGS="$DYNAMIC_LINKINGS -framework CoreGraphics"
+	DYNAMIC_LINKINGS="$DYNAMIC_LINKINGS -framework CoreData"
+	DYNAMIC_LINKINGS="$DYNAMIC_LINKINGS -framework CoreText"
+	DYNAMIC_LINKINGS="$DYNAMIC_LINKINGS -framework Security"
+	DYNAMIC_LINKINGS="$DYNAMIC_LINKINGS -framework Foundation"
+	DYNAMIC_LINKINGS="$DYNAMIC_LINKINGS -Wl,-U,_MallocExtension_ReleaseFreeMemory"
+	DYNAMIC_LINKINGS="$DYNAMIC_LINKINGS -Wl,-U,_ProfilerStart"
+	DYNAMIC_LINKINGS="$DYNAMIC_LINKINGS -Wl,-U,_ProfilerStop"
 fi
 append_linking() {
     if [ -f $1/lib${2}.a ]; then