dnl _AM_TRY_CHECK(MINIMUM-VERSION, EXTRA-CFLAGS, EXTRA-LIBS, CHECK-LIB-NAME

dnl               [, ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND]])

dnl Test for check, and define CHECK_CFLAGS and CHECK_LIBS

dnl Done this way because of the brokenness that is

dnl https://launchpad.net/distros/ubuntu/+source/check/+bug/5840

dnl

AC_DEFUN([_AM_TRY_CHECK],

[

  min_check_version=$1

  extra_cflags=$2

  extra_libs=$3

  check_lib_name=$4

  CHECK_CFLAGS="$extra_cflags"

  CHECK_LIBS="$extra_libs -l$check_lib_name"

  ac_save_CFLAGS="$CFLAGS"

  ac_save_LIBS="$LIBS"

  CFLAGS="$CFLAGS $CHECK_CFLAGS"

  LIBS="$CHECK_LIBS $LIBS"

  AC_MSG_CHECKING(for check named $check_lib_name  - version >= $min_check_version)

  rm -f conf.check-test

  dnl unset no_check, since in our second run it would have been set to yes

  dnl before

  no_check=

  AC_TRY_RUN([

#include <stdio.h>

#include <stdlib.h>

#include <check.h>

int main ()

{

  int major, minor, micro;

  char *tmp_version;

  system ("touch conf.check-test");

  /* HP/UX 9 (%@#!) writes to sscanf strings */

  tmp_version = strdup("$min_check_version");

  if (sscanf(tmp_version, "%d.%d.%d", &major, &minor, &micro) != 3) {

     printf("%s, bad version string\n", "$min_check_version");

     return 1;

   }

  if ((CHECK_MAJOR_VERSION != check_major_version) ||

      (CHECK_MINOR_VERSION != check_minor_version) ||

      (CHECK_MICRO_VERSION != check_micro_version))

    {

      printf("\n*** The check header file (version %d.%d.%d) does not match\n",

	     CHECK_MAJOR_VERSION, CHECK_MINOR_VERSION, CHECK_MICRO_VERSION);

      printf("*** the check library (version %d.%d.%d).\n",

	     check_major_version, check_minor_version, check_micro_version);

      return 1;

    }

  if ((check_major_version > major) ||

      ((check_major_version == major) && (check_minor_version > minor)) ||

      ((check_major_version == major) && (check_minor_version == minor) && (check_micro_version >= micro)))

    {

      return 0;

    }

  else

    {

      printf("\n*** An old version of check (%d.%d.%d) was found.\n",

             check_major_version, check_minor_version, check_micro_version);

      printf("*** You need a version of check being at least %d.%d.%d.\n", major, minor, micro);

      printf("***\n");

      printf("*** If you have already installed a sufficiently new version, this error\n");

      printf("*** probably means that the wrong copy of the check library and header\n");

      printf("*** file is being found. Rerun configure with the --with-check=PATH option\n");

      printf("*** to specify the prefix where the correct version was installed.\n");

    }

  return 1;

}

],, no_check=yes, [echo $ac_n "cross compiling; assumed OK... $ac_c"])

  CFLAGS="$ac_save_CFLAGS"

  LIBS="$ac_save_LIBS"

  if test "x$no_check" = x ; then

    AC_MSG_RESULT(yes)

    ifelse([$5], , :, [$5])

  else

    AC_MSG_RESULT(no)

    if test -f conf.check-test ; then

      :

    else

      echo "*** Could not run check test program, checking why..."

      CFLAGS="$CFLAGS $CHECK_CFLAGS"

      LIBS="$CHECK_LIBS $LIBS"

      AC_TRY_LINK([

#include <stdio.h>

#include <stdlib.h>

#include <check.h>

], ,  [ echo "*** The test program compiled, but did not run. This usually means"

        echo "*** that the run-time linker is not finding check. You'll need to set your"

        echo "*** LD_LIBRARY_PATH environment variable, or edit /etc/ld.so.conf to point"

        echo "*** to the installed location  Also, make sure you have run ldconfig if that"

        echo "*** is required on your system"

	echo "***"

        echo "*** If you have an old version installed, it is best to remove it, although"

        echo "*** you may also be able to get things to work by modifying LD_LIBRARY_PATH"],

      [ echo "*** The test program failed to compile or link. See the file config.log for"

        echo "*** the exact error that occured." ])

      CFLAGS="$ac_save_CFLAGS"

      LIBS="$ac_save_LIBS"

    fi

    CHECK_CFLAGS=""

    CHECK_LIBS=""

    rm -f conf.check-test

    ifelse([$6], , AC_MSG_ERROR([check not found]), [$6])

  fi

])

dnl AM_PATH_CHECK([MINIMUM-VERSION, [ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND]]])

dnl Test for check, and define CHECK_CFLAGS and CHECK_LIBS

dnl

AC_DEFUN([AM_PATH_CHECK],

[

  AC_ARG_WITH(check,

  [  --with-check=PATH       prefix where check is installed [default=auto]])

  AC_ARG_WITH(checklibname,

    AC_HELP_STRING([--with-check-lib-name=NAME],

      [name of the PIC check library (default=check)]))

  min_check_version=ifelse([$1], ,0.8.2,$1)

  if test x$with_check = xno; then

    AC_MSG_RESULT(disabled)

    ifelse([$3], , AC_MSG_ERROR([disabling check is not supported]), [$3])

  else

    if test "x$with_check" != x; then

      CHECK_EXTRA_CFLAGS="-I$with_check/include"

      CHECK_EXTRA_LIBS="-L$with_check/lib"

    else

      CHECK_EXTRA_CFLAGS=""

      CHECK_EXTRA_LIBS=""

    fi

    if test x$with_checklibname = x; then

      _AM_TRY_CHECK($min_check_version, $CHECK_EXTRA_CFLAGS, $CHECK_EXTRA_LIBS,

        check_pic, [have_check=true], [have_check=false])

      if test x$have_check = xtrue; then

        ifelse([$2], , :, [$2])

      else

        _AM_TRY_CHECK($min_check_version, $CHECK_EXTRA_CFLAGS, $CHECK_EXTRA_LIBS,

          check, [have_check=true], [have_check=false])

        if test x$have_check = xtrue; then

          ifelse([$2], , :, [$2])

        else

          ifelse([$3], , AC_MSG_ERROR([check not found]), [$3])

        fi

      fi

    else

      _AM_TRY_CHECK($min_check_version, $CHECK_EXTRA_CFLAGS, $CHECK_EXTRA_LIBS,

        $with_checklibname, [have_check=true], [have_check=false])

      if test x$have_check = xtrue; then

        ifelse([$2], , :, [$2])

      else

        ifelse([$3], , AC_MSG_ERROR([check not found]), [$3])

      fi

    fi

    AC_SUBST(CHECK_CFLAGS)

    AC_SUBST(CHECK_LIBS)

    rm -f conf.check-test

  fi

])