dnl Process this file with autoconf to produce a configure script.

AC_PREREQ([2.67])
AC_INIT([libmlx4],[1.0.6],[linux-rdma@vger.kernel.org])
AC_CONFIG_SRCDIR([src/mlx4.h])
AC_CONFIG_AUX_DIR(config)
AC_CONFIG_HEADER(config.h)
AM_INIT_AUTOMAKE([foreign subdir-objects])
m4_ifdef([AM_SILENT_RULES], [AM_SILENT_RULES([yes])])

LT_INIT

AC_ARG_WITH([valgrind],
    AS_HELP_STRING([--with-valgrind],[Enable Valgrind annotations (small runtime overhead, default NO)]))
if test x$with_valgrind = x || test x$with_valgrind = xno; then
    want_valgrind=no
    AC_DEFINE([NVALGRIND], 1, [Define to 1 to disable Valgrind annotations.])
else
    want_valgrind=yes
    if test -d $with_valgrind; then
        CPPFLAGS="$CPPFLAGS -I$with_valgrind/include"
    fi
fi

dnl Checks for programs
AC_PROG_CC
AC_LANG([C])

dnl Checks for libraries
AC_CHECK_LIB(ibverbs, ibv_get_device_list, [],
    AC_MSG_ERROR([ibv_get_device_list() not found.  libmlx4 requires libibverbs.]))

dnl Checks for header files.
AC_CHECK_HEADER(infiniband/driver.h, [],
    AC_MSG_ERROR([<infiniband/driver.h> not found.  libmlx4 requires libibverbs.]))
AC_HEADER_STDC
AC_CHECK_HEADER(valgrind/memcheck.h,
    [AC_DEFINE(HAVE_VALGRIND_MEMCHECK_H, 1,
        [Define to 1 if you have the <valgrind/memcheck.h> header file.])],
    [if test $want_valgrind = yes; then
        AC_MSG_ERROR([Valgrind memcheck support requested, but <valgrind/memcheck.h> not found.])
    fi])

dnl Checks for typedefs, structures, and compiler characteristics.
AC_C_CONST
AC_CHECK_SIZEOF(long)

dnl Checks for library functions
AC_CHECK_FUNC(verbs_register_driver, [],
    AC_MSG_ERROR([verbs_register_driver() not found.  libmlx4 requires libibverbs >= 1.1.8.]))

AC_CACHE_CHECK([for IBV_QPT_RAW_PACKET],
               [ac_cv_ibv_qpt_raw_packet],
               [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([#include <infiniband/verbs.h>],
                                                   [enum ibv_qp_type qpt = IBV_QPT_RAW_PACKET;])],
                                   [ac_cv_ibv_qpt_raw_packet=yes],
                                   [ac_cv_ibv_qpt_raw_packet=no])])
if test $ac_cv_ibv_qpt_raw_packet = no; then
    AC_MSG_ERROR([IBV_QPT_RAW_PACKET not found.  libmlx4 requires libibverbs >= 1.1.8.])
fi

dnl Now check if for libibverbs 1.0 vs 1.1
dummy=if$$
cat <<IBV_VERSION > $dummy.c
#include <infiniband/driver.h>
IBV_DEVICE_LIBRARY_EXTENSION
IBV_VERSION
IBV_DEVICE_LIBRARY_EXTENSION=`$CC $CPPFLAGS -E $dummy.c 2> /dev/null | tail -1`
rm -f $dummy.c
if test $IBV_DEVICE_LIBRARY_EXTENSION = IBV_DEVICE_LIBRARY_EXTENSION; then
    AC_MSG_ERROR([libibverbs does not define IBV_DEVICE_LIBRARY_EXTENSION.])
fi
AC_SUBST(IBV_DEVICE_LIBRARY_EXTENSION)

AC_CACHE_CHECK(whether ld accepts --version-script, ac_cv_version_script,
    [if test -n "`$LD --help < /dev/null 2>/dev/null | grep version-script`"; then
        ac_cv_version_script=yes
    else
        ac_cv_version_script=no
    fi])

if test $ac_cv_version_script = yes; then
    MLX4_VERSION_SCRIPT='-Wl,--version-script=$(srcdir)/src/mlx4.map'
else
    MLX4_VERSION_SCRIPT=
fi
AC_SUBST(MLX4_VERSION_SCRIPT)

AC_CONFIG_FILES([Makefile libmlx4.spec])
AC_OUTPUT