gcc c error: expected ')' before numeric constant

gcc c error: expected ')' before numeric constant

Hi I have been trying to port LWIP to a new arm device. When compiling the
code i get the error message:
"lwip/lwip-1.4.0/src/include/lwip/memp_std.h:35:23: error: expected ')'
before numeric constant"
When I go to this file this and below this several similar macros is what
I find on that line:
LWIP_MEMPOOL(RAW_PCB, MEMP_NUM_RAW_PCB, sizeof(struct raw_pcb),
"RAW_PCB")
If I remove the need for this macro with a define to deactivate the RAW
functionality the erorr.
The define it seems to want to put a ')' in front of is defined as this:
#define MEMP_NUM_RAW_PCB 1
The RAW_PCB is not defined but is "combined with MEMP_" to create an
element in an enum.
I have tried to complie the whole ting with the -E option to get human
redable object files and see if i can find any open '(' around the areas
where MEMP_RAW_PCB apears and the substitution of MEMP_NUM_RAW_PCB to 1
but I have not found any by manual inspection yet.
Are there any suggestions on what can be going on here or what more I can
do or look for to find the cause of the error?
I should maybe add that so far I don't call on any of the LWIP code from
main() or any of the functions used in main().