Hi Will William Wagner wrote:
> Been looking at getting lwip to set errno when errors occur and am > struggling a bit. The problem is in > packages\net\lwip_tcpip\current\src\api\sockets.c:152 > > To get it so that errno is set with the macro set_errno you must have > ERRNO defined. I have changed the cdl so that this is set. However you > then get a compilation error as errno is undefined. Attached is my > proposed patch to fix the issue. I realise this is a change to lwip code > which is best avoided but I can't see any other way of making it work. > Opinions? According to the lwIP documentation file doc/sys_arch.txt, the file include/arch/cc.h "must either include a system-local <errno.h> which defines the standard *nix error codes, or it should #define LWIP_PROVIDE_ERRNO to make lwip/arch.h define the codes which are used throughout". Try including errno.h from the file include/arch/cc.h and let us know if it helps... John Dallaway eCos maintainer http://www.dallaway.org.uk/john -- Before posting, please read the FAQ: http://ecos.sourceware.org/fom/ecos and search the list archive: http://ecos.sourceware.org/ml/ecos-discuss
