Jim, to use the gnulib <string.h> replacement with GCC 4.1.2 compiled under MinGW, I needed to patch lib/string.h as follows: --- gnulib/lib/string.h~ 2007-12-05 18:29:29.000000000 +0000 +++ gnulib/lib/string.h 2007-12-05 19:36:22.000000000 +0000 @@ -280,7 +280,7 @@ See also strtok_r(). */ #if 1 # if ! 0 -extern char *strsep (char **restrict __stringp, char const *restrict __delim); +extern char *strsep (char **__restrict__ __stringp, char const *__restrict__ __delim); # endif # if defined GNULIB_POSIXCHECK # undef strsep This seems to be because C99's restrict keyword is not enabled by default. You need to pass the -std=c99 parameter to the compiler to get this. Rich. -- Emerging Technologies, Red Hat - http://et.redhat.com/~rjones/ Registered Address: Red Hat UK Ltd, Amberley Place, 107-111 Peascod Street, Windsor, Berkshire, SL4 1TE, United Kingdom. Registered in England and Wales under Company Registration No. 03798903