AC_INIT(sql_iodbc.c)
AC_REVISION($Revision: 1.2 $)
AC_DEFUN(modname,[rlm_sql_iodbc])

AC_PROG_CC
AC_PROG_CPP

AC_ARG_WITH(iodbc-include-dir,
[  --with-iodbc-include-dir=DIR       Directory where the Iodbc includes may be found ],
[ iodbc_include_dir="$withval" ]
)

AC_ARG_WITH(iodbc-lib-dir,
[  --with-iodbc-lib-dir=DIR       Directory where the Iodbc libraries may be found ],
[ iodbc_lib_dir="$withval" ]
)

AC_ARG_WITH(iodbc-dir,
[  --with-iodbc-dir=DIR       Base directory where Iodbc is installed ],
[ iodbc_lib_dir="$withval/lib/iodbc"
  iodbc_include_dir="$withval/include"
]
)

if test x$with_[]modname != xno; then

	targetname=modname   # we might change this later.

	AC_MSG_CHECKING([for isql.h])

	AC_TRY_COMPILE([#include <isql.h>], [int a = 1;],
		IODBC_INCLUDE=" ",
		IODBC_INCLUDE=
	)

	if test "x$IODBC_INCLUDE" = "x"; then
		old_CFLAGS="$CFLAGS"

dnl		AC_LOCATE_DIR(iodbc_include_dir,[isql.h])

		for try in /usr/local/include /usr/local/iodbc/include $iodbc_include_dir; do
			CFLAGS="$old_CFLAGS -I$try"
			AC_TRY_COMPILE([#include <isql.h>], [int a = 1;],
				IODBC_INCLUDE="-I$try",
				IODBC_INCLUDE=
			)
			if test "x$IODBC_INCLUDE" != "x"; then
				break;
			fi
		done
		CFLAGS="$old_CFLAGS"
	fi

	if test "x$IODBC_INCLUDE" = "x"; then
		AC_MSG_RESULT(no)
		AC_MSG_WARN([iodbc headers not found.  Use --with-iodbc-include-dir=<path>.])
		targetname=   # disabled module
	else
		sql_iodbc_cflags="${sql_iodbc_cflags} ${IODBC_INCLUDE}"
		AC_MSG_RESULT(yes)
		AC_DEFINE(HAVE_IODBC_H)

  
		AC_MSG_CHECKING([for SQLConnect in -liodbc])

		old_LIBS="$LIBS"

dnl		AC_LOCATE_DIR(iodbc_lib_dir,[libodbc${libltdl_cv_shlibext}])
dnl		AC_LOCATE_DIR(iodbc_lib_dir,[libodbc.a])

		for try in /usr/lib /usr/lib/iodbc /usr/local/lib/iodbc /usr/local/iodbc/lib/iodbc $iodbc_lib_dir; do
			LIBS="$old_LIBS -L$try -liodbc"
			AC_TRY_LINK([extern char SQLConnect();], [SQLConnect()],
				IODBC_LIBS="-L$try -liodbc",
				IODBC_LIBS=
			)
			if test "x$IODBC_LIBS" != "x"; then
				break;
			fi
		done
		LIBS="$old_LIBS"

		dnl #  If one or the other isn't found, disable them both..
		dnl #  If both are found, enable them both.
		if test "x$IODBC_LIBS" = "x"; then
			AC_MSG_RESULT(no)
			IODBC_INCLUDE=
			AC_MSG_WARN([iodbc libraries not found.  Use --with-iodbc-lib-dir=<path>.])
			targetname=   # disabled module
		else
			AC_MSG_RESULT(yes) 
			sql_iodbc_ldflags="$sql_iodbc_ldflags $IODBC_LIBS"
		fi
	fi

	sql_iodbc_ldflags="$sql_iodbc_ldflags $LIBS"

	if test "x$targetname" = "x"; then
		AC_MSG_WARN([sql submodule 'iodbc' disabled])
	fi

else
	targetname=
	echo \*\*\* module modname is disabled.
fi

AC_SUBST(sql_iodbc_ldflags)
AC_SUBST(sql_iodbc_cflags)
AC_SUBST(targetname)
AC_OUTPUT(Makefile)