To make Text.Regex.Posix work with Hugs, move cbits/regex/regex.h under
include, where Hugs can find it.
dnl ** check for POSIX regex
HavePosixRegex=NO
-AC_CHECK_HEADERS(regex.h,[AC_CHECK_FUNC(regcomp, [HavePosixRegex=YES])])
+AC_CHECK_HEADERS(regex.h,[AC_CHECK_FUNCS(regcomp, [HavePosixRegex=YES])])
AC_SUBST(HavePosixRegex)
dnl ** how do we get a timezone name, and UTC offset ?