Hi, I've found the m4_ax_check_typedef.m4 script here: http://git.savannah.gnu.org/gitweb/?p=autoconf-archive.git;a=blob_plain;f=m4/ax_check_typedef.m4
It appears to be very buggy: - actions are ignored - if the header is omitted, then the printout is: "Checking for type in ..." even though it actually checks in stddef.h. Attached is the fixed version of a script.
m4_ax_check_typedef.m4
Description: application/m4
