diff --git a/workspace_tools/export/gcc_arm_lpc1768.tmpl b/workspace_tools/export/gcc_arm_lpc1768.tmpl
index 8d83c36c4a..df057ae3c5 100644
--- a/workspace_tools/export/gcc_arm_lpc1768.tmpl
+++ b/workspace_tools/export/gcc_arm_lpc1768.tmpl
@@ -19,7 +19,7 @@ OBJCOPY = $(GCC_BIN)arm-none-eabi-objcopy
 
 CPU = -mcpu=cortex-m3 -mthumb
 CC_FLAGS = $(CPU) -c -Os -fno-common -fmessage-length=0 -Wall -fno-exceptions -ffunction-sections -fdata-sections 
-CC_SYMBOLS = -DTARGET_LPC1768 -DTOOLCHAIN_GCC_ARM -DNDEBUG -D__CORTEX_M3
+CC_SYMBOLS = {% for s in symbols %}-D{{s}} {% endfor %}
 
 LD_FLAGS = -mcpu=cortex-m3 -mthumb -Wl,--gc-sections --specs=nano.specs -u _printf_float -u _scanf_float
 LD_SYS_LIBS = -lstdc++ -lsupc++ -lm -lc -lgcc -lnosys
diff --git a/workspace_tools/export/gccarm.py b/workspace_tools/export/gccarm.py
index 9aaee3383a..8718e3a45c 100644
--- a/workspace_tools/export/gccarm.py
+++ b/workspace_tools/export/gccarm.py
@@ -49,5 +49,6 @@ class GccArm(Exporter):
             'library_paths': self.resources.lib_dirs,
             'linker_script': self.resources.linker_script,
             'libraries': libraries,
+            'symbols': self.toolchain.get_symbols()
         }
         self.gen_file('gcc_arm_%s.tmpl' % self.target.lower(), ctx, 'Makefile')