Re: [Bug-apl] Autoconf woes

[Juergen Sauermann]

Hi Elias,

I believe you can set CXXFLAGS before AC_CHECK_HEADER([term.h], [], [], []) like:

CXXFLAGS=-I. -I/usr/include/postgres
AC_CHECK_HEADER([libpq-fe.h], [], [], [])

If it fails then config.log tells you why. Alternatively you could call AC_CHECK_HEADER again
if the first one fails:

AC_CHECK_HEADER(
  [libpq-fe.h],
  [],
  [AC_CHECK_HEADER([postgres/libpq-fe.h], []. [], []),
  [])

In the found clauses (2. argument - empty in above example) you can do whats needed in the respective cases.
Haven't tested this, though.

/// Jürgen


On 04/20/2014 03:39 PM, Elias Mårtenson wrote:

I've struggling with integrating the SQL stuff with Autoconf. My intent was (and still, to some degree, is) to provide a simple patch for Jürgen.

But alas! My plan has been foiled! Bu that creature of the shadows that go by the name Autoconf.

My question to anyone here (especially Jürgen) how can I fix the following two problems:

Problem number 1:

The Postgres detection script that is available at the Autoconf Archive fails on my Ubuntu system because its include file is in /usr/include/postgres/libpq-fe.h instead of /usr/include/libpq-fe.h. Of course, one can override it using an option, but I would like to fix the macro instead. However, the content of the macro is somewhat impenetrable to me.

Problem number 2:

When I activate the macros that check for Postgres and SQLite, the configure step will fail if they are not found. What I want is that these should be optional, and if one is missing support for these databases will simply not be provided.

Would anyone be willing to help out getting this to work? I'm getting frustrated here (it's no secret that I'm not a huge fan of Autoconf).

Regards,

Elias