Re: CPPFLAGS and AC_CHECK_HEADERS

[Assar Westerlund]

Jose Roman Bilbao <address@hidden> writes:
> I can not show you now the output but I can tell you that configure
> finished saying "NO" to all the tests performed to that library, I mean,
> usability, compiler and presence.

config.log probably has more hints as to why this happened.

> I tried to build a test and I realized that I can not use this header
> alone and I have to add some other VTK headers. Has it something to do
> with my problem?

Yes, that's likely a problem.  Look at AC_CHECK_HEADERS in the manual,
it allows you to include the required headers when testing for a header.

> I could make a simple test using EGREP as I know a file gcc does not
> find when trying to build the simple example but I was wondering if will
> work under other plattforms.

Using AC_CHECK_HEADER is going to be more portable, since it actually
runs the compiler.