#                                               -*- Autoconf -*-
# Process this file with autoconf to produce a configure script.

AC_PREREQ([2.67])
AC_INIT([database], [2.2.0], [i7tiol@t-online.de])
AC_CONFIG_SRCDIR([__pq_connect__.cc])

# Checks for programs.
AC_PROG_CXX
if test "$GXX" != yes; then
AC_MSG_ERROR([This package needs the GNU C++ compiler, which wasn't found.], 1);
fi
  
AC_CHECK_PROG(OCTAVE, octave, octave)
AC_CHECK_PROG(MKOCTFILE, mkoctfile, mkoctfile)
AC_CHECK_PROG(PG_CONFIG, pg_config, pg_config)
if test -z "$PG_CONFIG"; then
AC_MSG_ERROR([pg_config not found], 1);
fi

# Checks for libraries.
AC_CHECK_LIB([pq], [PQconnectdb])

# Checks for typedefs, structures, and compiler characteristics.

# Checks for library functions.
AC_FUNC_ERROR_AT_LINE

# Check for PostgreSQL version. (Octave is 'abused' here for string
# and version handling, only because I'm more familiar with it than
# with other tools. Should not interfer with cross-compiling as long
# as you have any Octave installed locally.)
AC_MSG_CHECKING([whether PostgreSQL version is >= 8.3])
if $OCTAVE -q --eval ["[~, vs] = system ('$PG_CONFIG --version'); if (compare_versions (regexp (vs, '(\\d+\\.\\d+\\.\\d+)', 'tokens'){1}{:}, '8.3', '>=')) exit (1); else exit (0); endif"]; then
   AC_MSG_RESULT(no)
  AC_MSG_ERROR([package \"database\" does not work with PostgreSQL version < 8.3], 1);
else
   AC_MSG_RESULT(yes)
fi

AC_CONFIG_FILES([Makefile])
AC_OUTPUT