Fix user emulator breakage

Fix breakage in the following conditions:
- use in-tree building
- build user targets after system targets

Signed-off-by: Blue Swirl <blauwirbel@gmail.com>

Makefile.target

@@ -83,7 +83,6 @@ QEMU_CFLAGS+=-I$(SRC_PATH)/linux-user -I$(SRC_PATH)/linux-user/$(TARGET_ABI_DIR)
 obj-y = main.o syscall.o strace.o mmap.o signal.o thunk.o \
       elfload.o linuxload.o uaccess.o gdbstub.o gdbstub-xml.o
 obj-y += envlist.o path.o
-obj-y += tcg-runtime.o host-utils.o
 
 obj-$(TARGET_HAS_BFLT) += flatload.o
 obj-$(TARGET_HAS_ELFLOAD32) += elfload32.o
@@ -118,7 +117,6 @@ LIBS+=-lmx
 obj-y = main.o commpage.o machload.o mmap.o signal.o syscall.o thunk.o \
         gdbstub.o gdbstub-xml.o
 obj-y += envlist.o path.o
-obj-y += tcg-runtime.o host-utils.o
 
 obj-i386-y += ioport-user.o
 
@@ -137,7 +135,6 @@ QEMU_CFLAGS+=-I$(SRC_PATH)/bsd-user -I$(SRC_PATH)/bsd-user/$(TARGET_ARCH)
 obj-y = main.o bsdload.o elfload.o mmap.o signal.o strace.o syscall.o \
         gdbstub.o gdbstub-xml.o uaccess.o
 obj-y += envlist.o path.o
-obj-y += tcg-runtime.o host-utils.o
 
 obj-i386-y += ioport-user.o
 
@@ -147,8 +144,9 @@ endif #CONFIG_BSD_USER
 
 ifdef CONFIG_USER_ONLY
 # hack to compile with -fpie for *-user targets
+obj-y += tcg-runtime-user.o host-utils-user.o
 obj-y += cutils-user.o cache-utils-user.o
-cutils-user.c cache-utils-user.c:
+tcg-runtime-user.c host-utils-user.c cutils-user.c cache-utils-user.c:
 	@echo "  LN	$(TARGET_DIR)$@"
 	@ln -s $(SRC_PATH)/$(@:%-user.c=%.c) $@
 endif