diff --git a/tools/cooja/config/external_tools_macosx.config b/tools/cooja/config/external_tools_macosx.config
new file mode 100644
index 000000000..28cb13230
--- /dev/null
+++ b/tools/cooja/config/external_tools_macosx.config
@@ -0,0 +1,43 @@
+PATH_CONTIKI = ../../..
+PATH_COOJA_CORE_RELATIVE = /platform/cooja
+PATH_MAKE = make
+PATH_LINKER = gcc
+PATH_AR = ar
+PATH_SHELL = sh
+PATH_C_COMPILER = gcc
+PATH_OBJDUMP= objdump
+OBJDUMP_ARGS= -h
+CMD_GREP_PROCESSES = grep "^PROCESS_THREAD([^,]*,[^,]*,[^)]*)" -o -H
+REGEXP_PARSE_PROCESSES = ([^/]*.c):PROCESS_THREAD\\(([^,]*),[^,]*,[^)]*\\)
+CMD_GREP_INTERFACES = grep "^SIM_INTERFACE([^,]*," -o -d skip -D skip -H -r
+REGEXP_PARSE_INTERFACES = ([^/]*.c):SIM_INTERFACE\\(([^,]*),
+CMD_GREP_SENSORS = grep "^SENSORS_SENSOR([^,]*," -o -d skip -D skip -H -r
+REGEXP_PARSE_SENSORS = ([^/]*.c):SENSORS_SENSOR\\(([^,]*),
+COMPILER_ARGS = -Wall -I/System/Library/Frameworks/JavaVM.framework/Versions/CurrentJDK/Headers -dynamiclib -fno-common
+LINK_COMMAND_1 = gcc -dynamiclib -fno-common -o $(LIBFILE)
+LINK_COMMAND_2 = -framework JavaVM
+AR_COMMAND_1 = ar rc $(ARFILE)
+AR_COMMAND_2 = 
+CONTIKI_STANDARD_PROCESSES = sensors_process;etimer_process
+CONTIKI_MAIN_TEMPLATE_FILENAME = contiki_template.c
+MANTIS_MAIN_TEMPLATE_FILENAME = mantis_template.c
+CORECOMM_TEMPLATE_FILENAME = corecomm_template.java
+PATH_JAVAC = javac
+DEFAULT_PROJECTDIRS = ../apps/mrm
+
+PARSE_WITH_COMMAND = true
+PARSE_COMMAND = nmandsize $(LIBFILE)
+MAPFILE_DATA_START = ^.data[ \t]*0x([0-9A-Fa-f]*)[ \t]*0x[0-9A-Fa-f]*[ \t]*$
+MAPFILE_DATA_SIZE = ^.data[ \t]*0x[0-9A-Fa-f]*[ \t]*0x([0-9A-Fa-f]*)[ \t]*$
+MAPFILE_BSS_START = ^.bss[ \t]*0x([0-9A-Fa-f]*)[ \t]*0x[0-9A-Fa-f]*[ \t]*$
+MAPFILE_BSS_SIZE = ^.bss[ \t]*0x[0-9A-Fa-f]*[ \t]*0x([0-9A-Fa-f]*)[ \t]*$
+MAPFILE_VAR_NAME = ^[ \t]*(0x[0-9A-Fa-f]*)[ \t]*([^ ]*)[ \t]*$
+MAPFILE_VAR_ADDRESS_1 = ^[ \t]*0x([0-9A-Fa-f]*)[ \t]*
+MAPFILE_VAR_ADDRESS_2 = [ \t]*$
+MAPFILE_VAR_SIZE_1 = ^
+MAPFILE_VAR_SIZE_2 = [ \t]*(0x[0-9A-Fa-f]*)[ \t]*[^ ]*[ \t]*$
+COMMAND_VAR_NAME_ADDRESS = ^[ \t]*([0-9A-Fa-f][0-9A-Fa-f]*)[ \t]\\(__DATA,__[^ ]*\\) external _([^ ]*)$
+COMMAND_DATA_START = ^DATA SECTION START\: 0x([0-9A-Fa-f][0-9A-Fa-f]*)$
+COMMAND_DATA_END= ^ DATA SECTION END\: 0x([0-9A-Fa-f][0-9A-Fa-f]*)$
+COMMAND_BSS_START = ^BSS SECTION START\: 0x([0-9A-Fa-f][0-9A-Fa-f]*)$
+COMMAND_BSS_END = ^BSS SECTION END\: 0x([0-9A-Fa-f][0-9A-Fa-f]*)$