diff --git a/platforms/qemu_integratorcp/Makefile b/platforms/qemu_integratorcp/Makefile
index 551529f..5ac20af 100644
--- a/platforms/qemu_integratorcp/Makefile
+++ b/platforms/qemu_integratorcp/Makefile
@@ -16,7 +16,7 @@ AS = arm-none-eabi-gcc
 
 CFLAGS := $(CFLAGS) -Wall -g -c -mcpu=arm926ej-s -ffreestanding 
 AFLAGS := $(CFLAGS) -Wall -g -c -mcpu=arm926ej-s -ffreestanding 
-LFLAGS := $(LFLAGS) -Wall -mcpu=arm926ej-s -Wl,-Map=system.map,--verbose  -Tsystem.ld 
+LFLAGS := $(LFLAGS) -Wall -mcpu=arm926ej-s -Wl,-Map=system.map -Tsystem.ld 
 
 CDEFS := $(CDEFS)  -DATOMTHREADS_TEST='"$(TEST_NAME)"' 
 ADEFS := $(ADEFS)
@@ -26,6 +26,7 @@ LLIBS := $(LLIBS)
 
 SRCS := $(SRCS) \
 		modules.c \
+		syscalls.c \
 		main.c \
 		$(ATOMTHREADS)/tests/$(TEST_NAME).c
 
@@ -64,6 +65,7 @@ all_tests:
 	make run_test "TEST_NAME=timer1"
 	make run_test "TEST_NAME=timer2"
 	make run_test "TEST_NAME=timer3"
+	make run_test "TEST_NAME=timer4"
 	make run_test "TEST_NAME=timer5"
 	make run_test "TEST_NAME=timer6"
 	make run_test "TEST_NAME=timer7"
@@ -76,6 +78,7 @@ all_tests:
 	make run_test "TEST_NAME=queue7"
 	make run_test "TEST_NAME=queue8"
 	make run_test "TEST_NAME=queue9"
+	make run_test "TEST_NAME=queue10"
 	make run_test "TEST_NAME=sem1"
 	make run_test "TEST_NAME=sem2"
 	make run_test "TEST_NAME=sem3"
diff --git a/platforms/qemu_integratorcp/modules.c b/platforms/qemu_integratorcp/modules.c
index 55e1115..7f9b0e2 100644
--- a/platforms/qemu_integratorcp/modules.c
+++ b/platforms/qemu_integratorcp/modules.c
@@ -76,6 +76,7 @@ dbg_format_msg (char *format, ...)
  * May be provided by the compiler toolchain in some cases.
  *
  */
+extern void _mainCRTStartup (void) __attribute__((weak));
 void _mainCRTStartup(void)
 {
     unsigned long *src;
diff --git a/platforms/qemu_integratorcp/syscalls.c b/platforms/qemu_integratorcp/syscalls.c
index 56d8b9e..97295a7 100644
--- a/platforms/qemu_integratorcp/syscalls.c
+++ b/platforms/qemu_integratorcp/syscalls.c
@@ -11,6 +11,19 @@ enum {
 #define UART_DR(baseaddr) (*(unsigned int *)(baseaddr))
 #define UART_FR(baseaddr) (*(((unsigned int *)(baseaddr))+6))
 
+/** 
+ * Define all functions as weak in case the compiler toolchain provides them
+ */
+extern int _close(int file) __attribute__((weak));
+extern int _fstat(int file, struct stat *st) __attribute__((weak));
+extern int _isatty(int file) __attribute__((weak));
+extern int _lseek(int file, int ptr, int dir) __attribute__((weak));
+extern int _open(const char *name, int flags, int mode) __attribute__((weak));
+extern int _read(int file, char *ptr, int len) __attribute__((weak));
+extern caddr_t _sbrk(int incr) __attribute__((weak));
+extern int _write(int file, char *ptr, int len) __attribute__((weak));
+
+
 int _close(int file) { return -1; }
 
 int _fstat(int file, struct stat *st) {