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# LIBUNIXODBC_CHECK_CONFIG ([DEFAULT-ACTION])
# ----------------------------------------------------------
# Eugene Grigorjev <eugene@zabbix.com> June-07-2007
#
# Checks for unixodbc. DEFAULT-ACTION is the string yes or no to
# specify whether to default to --with-unixodbc
# If not supplied, DEFAULT-ACTION is no.
#
# This macro #defines HAVE_UNIXODBC if a required header files is
# found, and sets @UNIXODBC_LDFLAGS@ and @UNIXODBC_CFLAGS@ to the necessary
# values.
#
# Users may override the detected values by doing something like:
# UNIXODBC_LDFLAGS="-lunixodbc" UNIXODBC_CFLAGS="-I/usr/myinclude" ./configure
#
# This macro is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
AC_DEFUN([LIBUNIXODBC_CHECK_CONFIG],
[
AC_ARG_WITH(unixodbc,
[AC_HELP_STRING([--with-unixodbc@<:@=ARG@:>@],
[use odbc driver against unixODBC package @<:@default=no@:>@, optionally specify path to odbc_config.])
],[ if test "$withval" = "no"; then
want_unixodbc="no"
elif test "$withval" = "yes"; then
want_unixodbc="yes"
else
want_unixodbc="yes"
_libodbc_config=$withval
fi
],[want_unixodbc=ifelse([$1],,[no],[$1])])
if test "x$want_unixodbc" != x"no"; then
if test -z "$_libodbc_config" -o test; then
AC_PATH_PROG([_libodbc_config], [odbc_config], [no])
fi
if test -f $_libodbc_config; then
UNIXODBC_CFLAGS="-I`${_libodbc_config} --include-prefix`"
UNIXODBC_LDFLAGS="$LDFLAGS -L`${_libodbc_config} --lib-prefix`"
found_unixodbc="yes"
else
found_unixodbc="no"
fi
if test "$found_unixodbc" = "yes"; then
_save_unixodbc_libs="${LIBS}"
_save_unixodbc_ldflags="${LDFLAGS}"
_save_unixodbc_cflags="${CFLAGS}"
LIBS="${LIBS} ${UNIXODBC_LIBS}"
LDFLAGS="${LDFLAGS} ${UNIXODBC_LDFLAGS}"
CFLAGS="${CFLAGS} ${UNIXODBC_CFLAGS}"
AC_CHECK_LIB(odbc, main,[
UNIXODBC_LIBS="-lodbc $UNIXODBC_LIBS"
],[
AC_MSG_ERROR([Not found libodbc library])
])
LIBS="${LIBS} ${UNIXODBC_LIBS}"
AC_CACHE_CHECK([whether unixodbc is usable],
[_libunixodbc_usable],
[AC_LINK_IFELSE(AC_LANG_PROGRAM([
#include <sql.h>
#include <sqlext.h>
#include <sqltypes.h>
],[
/* Try and use a few common options to force a failure if we are
missing symbols or can't link. */
SQLRETURN retcode;
retcode = SQLAllocHandle(SQL_HANDLE_ENV, SQL_NULL_HANDLE, (SQLHENV*)0);
]),_libunixodbc_usable=yes,_libunixodbc_usable=no)
])
LIBS="${_save_unixodbc_libs}"
LDFLAGS="${_save_unixodbc_ldflags}"
CFLAGS="${_save_unixodbc_cflags}"
unset _save_unixodbc_libs
unset _save_unixodbc_ldflags
unset _save_unixodbc_cflags
if test "$_libunixodbc_usable" != "yes"; then
AC_MSG_ERROR([Can't use libodbc library])
fi
AC_DEFINE(HAVE_UNIXODBC,1,[Define to 1 if unixUNIXODBC Driver Manager should be used.])
fi
fi
AC_SUBST(UNIXODBC_LDFLAGS)
AC_SUBST(UNIXODBC_CFLAGS)
AC_SUBST(UNIXODBC_LIBS)
unset _libunixodbc_with
unset _libunixodbc_usable
])dnl
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