Macro: sg_afs

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# sg_afs

## Synopsis

`SG_AFS`

## Version

1.1 (2001/08/25) Installed_Packages @ ac-archive-0.5.32

## Author

Scott Grosch <Scott.Grosch@intel.com>

## Description

This sets up the proper includes and libs needed for building programs that link with AFS. It adds a --with-afsdir option that lets you specify where the AFS includes and libs are (defaulting to /usr/afsws).

It also adds the -I and -L options to CPPFLAGS and LDFLAGS

It creates an AC_SUBST(AFSWS) that contains the directory being used.

It checks for -lBSD, -lsocket and -lnsl since AFS needs those if they exist. It also adds -R/usr/ucblib -L/usr/ucblib -lucb if on Solaris.

It sets VICE_ETC_PATH to be the directory where /usr/vice/etc lives, since AFS 3.4 uses a different define than AFS 3.5 does for that path.

Finally, it defines AFS_int32 to be the in32 type needed. In older versions of afs it was 'int32', and in newer versions it's 'afs_int32'.

## M4 Source Code

    AC_DEFUN(SG_AFS,
    [AC_ARG_WITH(afsdir, AC_HELP_STRING([--with-afsdir=DIR],
                                          [Directory holding AFS includes/libs]),
                    sg_cv_with_afsdir=$withval)
     AC_CACHE_CHECK([for location of AFS directory],
                             sg_cv_with_afsdir, sg_cv_with_afsdir=/usr/afsws)

    CPPFLAGS="-I${sg_cv_with_afsdir}/include $CPPFLAGS"
    LDFLAGS="-L${sg_cv_with_afsdir}/lib -L${sg_cv_with_afsdir}/lib/afs $LDFLAGS"

    dnl Once we specify a directory, we try to link a test program.  If the link
    dnl works, we store the value of the directory in a cache variable.  If not,
    dnl we put _FAILED_ in the cache value.  In this way we don't try to link
    dnl the test program if our afsdir value was cached, as we know it works.
    AC_MSG_CHECKING([whether the specified AFS dir looks valid])
    if test "x${sg_cv_afsdir_link_works:-set}" != "x$sg_cv_with_afsdir"; then
            save_LIBS="$LIBS"
            LIBS="$save_LIBS -lcmd"
            AC_TRY_LINK([#include <afs/cmd.h>],
                    [cmd_CreateAlias((struct cmd_syndesc *)0, "foo")],
                    sg_cv_afsdir_link_works=$sg_cv_with_afsdir,
                    sg_cv_afsdir_link_works=_FAILED_)
            LIBS="$save_LIBS"
            wasCached=""
    else
            wasCached="(cached)"
    fi
    if test "x$sg_cv_afsdir_link_works" = "x$sg_cv_with_afsdir"; then
            AC_MSG_RESULT([${wasCached} yes])
    else
            AC_MSG_RESULT([no])
            AC_MSG_ERROR([Unable to link test program....bad AFS dir specified?])
    fi

    dnl Much easier to use in XXX.in files
    AFSWS=$sg_cv_with_afsdir
    AC_SUBST(AFSWS)

    dnl Linking against AFS always needs these
    AC_CHECK_LIB(BSD, signal)
    AC_CHECK_LIB(socket, getservbyname)
    AC_CHECK_LIB(nsl, gethostbyname)

    dnl On Solaris is just always needs the -lucb library from the compatibility
    dnl area.  I can't think of any other way to do this than just hardcode it.
    AC_CANONICAL_HOST
    case "$host" in
    *-*-solaris*)
            LDFLAGS="-L/usr/ucblib -R/usr/ucblib $LDFLAGS"
            LIBS="-lucb $LIBS"
      ;;
    esac

    dnl And it always needs these libs added
    LIBS="$LIBS -lacl -lvolser -lvldb -lprot -lkauth -lauth -lrxkad -lubik ${sg_cv_with_afsdir}/lib/afs/vlib.a -ldir ${sg_cv_with_afsdir}/lib/afs/util.a -lsys -lafsint -lrx -lsys -ldes -lcom_err -llwp -lcmd -laudit"

    dnl This really should be AC_CHECK_LIB() but that always fails for some reason
    if test -f "${sg_cv_with_afsdir}/lib/afs/libaudit.a"; then
            LIBS="$LIBS -laudit"
    fi

    dnl If dirpath.h exists and has the value, use that.  Otherwise don't
    AC_CHECK_HEADERS(afs/dirpath.h,
            [AC_DEFINE(VICE_ETC_PATH, AFSDIR_CLIENT_ETC_DIRPATH)],
            [AC_DEFINE(VICE_ETC_PATH, AFSCONF_CLIENTNAME)])

    dnl Find out if we should use afs_int32 or int32.  They changed the
    dnl type across AFS versions.
    AC_CACHE_CHECK([for AFS int32 type], ac_cv_type_int32,
    [AC_EGREP_CPP(dnl
    changequote(<<,>>)dnl
    <<(^|[^a-zA-Z_0-9])afs_int32[^a-zA-Z_0-9]>>dnl
    changequote([,]), [#include <afs/stds.h>
    ], ac_cv_type_int32=afs_int32, ac_cv_type_int32=int32)])
    AC_DEFINE_UNQUOTED(AFS_int32, $ac_cv_type_int32)

    AH_TEMPLATE([VICE_ETC_PATH],
    [Define this to be the define used in the AFS header for /usr/vice/etc])

    AH_TEMPLATE([AFS_int32], [Define this to be the type AFS uses for int32])
    ])dnl