dnl modules enabled in this directory by default

dnl APACHE_MODULE(name, helptext[, objects[, structname[, default[, config]]]])

APACHE_MODPATH_INIT(cache)

APACHE_MODULE(file_cache, File cache, , , most)

dnl #  list of object files for mod_cache

cache_objs="dnl

mod_cache.lo dnl

cache_storage.lo dnl

cache_util.lo dnl

"

cache_disk_objs="mod_cache_disk.lo"

cache_socache_objs="mod_cache_socache.lo"

case "$host" in

  *os2*)

    # OS/2 DLLs must resolve all symbols at build time

    # and we need some from main cache module

    cache_disk_objs="$cache_disk_objs mod_cache.la"

    cache_socache_objs="$cache_socache_objs mod_cache.la"

    ;;

esac

APACHE_MODULE(cache, dynamic file caching.  At least one storage management module (e.g. mod_cache_disk) is also necessary., $cache_objs, , most)

APACHE_MODULE(cache_disk, disk caching module, $cache_disk_objs, , most, , cache)

APACHE_MODULE(cache_socache, shared object caching module, $cache_socache_objs, , most)

dnl

dnl APACHE_CHECK_DISTCACHE

dnl

dnl Configure for the detected distcache installation, giving

dnl preference to "--with-distcache=<path>" if it was specified.

dnl

AC_DEFUN([APACHE_CHECK_DISTCACHE],[

if test "x$ap_distcache_configured" = "x"; then

  dnl initialise the variables we use

  ap_distcache_found=""

  ap_distcache_base=""

  ap_distcache_libs=""

  ap_distcache_ldflags=""

  ap_distcache_with=""

  dnl Determine the distcache base directory, if any

  AC_MSG_CHECKING([for user-provided distcache base])

  AC_ARG_WITH(distcache, APACHE_HELP_STRING(--with-distcache=PATH, Distcache installation directory), [

    dnl If --with-distcache specifies a directory, we use that directory or fail

    if test "x$withval" != "xyes" -a "x$withval" != "x"; then

      dnl This ensures $withval is actually a directory and that it is absolute

      ap_distcache_with="yes"

      ap_distcache_base="`cd $withval ; pwd`"

    fi

  ])

  if test "x$ap_distcache_base" = "x"; then

    AC_MSG_RESULT(none)

  else

    AC_MSG_RESULT($ap_distcache_base)

  fi

  dnl Run header and version checks

  saved_CPPFLAGS="$CPPFLAGS"

  saved_LIBS="$LIBS"

  saved_LDFLAGS="$LDFLAGS"

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

    APR_ADDTO(CPPFLAGS, [-I$ap_distcache_base/include])

    APR_ADDTO(MOD_INCLUDES, [-I$ap_distcache_base/include])

    APR_ADDTO(LDFLAGS, [-L$ap_distcache_base/lib])

    APR_ADDTO(ap_distcache_ldflags, [-L$ap_distcache_base/lib])

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

      APR_ADDTO(LDFLAGS, [$ap_platform_runtime_link_flag$ap_distcache_base/lib])

      APR_ADDTO(ap_distcache_ldflags, [$ap_platform_runtime_link_flag$ap_distcache_base/lib])

    fi

  fi

  dnl First check for mandatory headers

  AC_CHECK_HEADERS([distcache/dc_client.h], [ap_distcache_found="yes"], [])

  if test "$ap_distcache_found" = "yes"; then

    dnl test for a good version

    AC_MSG_CHECKING(for distcache version)

    AC_TRY_COMPILE([#include <distcache/dc_client.h>],[

#if DISTCACHE_CLIENT_API != 0x0001

#error "distcache API version is unrecognised"

#endif],

      [],

      [ap_distcache_found="no"])

    AC_MSG_RESULT($ap_distcache_found)

  fi

  if test "$ap_distcache_found" != "yes"; then

    if test "x$ap_distcache_with" = "x"; then

      AC_MSG_WARN([...No distcache detected])

    else

      AC_MSG_ERROR([...No distcache detected])

    fi

  else

    dnl Run library and function checks

    AC_MSG_CHECKING(for distcache libraries)

    ap_distcache_libs="-ldistcache -lnal"

    APR_ADDTO(LIBS, [$ap_distcache_libs])

    AC_TRY_LINK(

      [#include <distcache/dc_client.h>],

      [DC_CTX *foo = DC_CTX_new((const char *)0,0);],

      [],

      [ap_distcache_found="no"])

    AC_MSG_RESULT($ap_distcache_found)

    if test "$ap_distcache_found" != "yes"; then

      if test "x$ap_distcache_base" = "x"; then

        AC_MSG_WARN([... Error, distcache libraries were missing or unusable])

      else

        AC_MSG_ERROR([... Error, distcache libraries were missing or unusable])

      fi

    fi

  fi

  dnl restore

  CPPFLAGS="$saved_CPPFLAGS"

  LIBS="$saved_LIBS"

  LDFLAGS="$saved_LDFLAGS"

  dnl Adjust apache's configuration based on what we found above.

  if test "$ap_distcache_found" = "yes"; then

    APR_ADDTO(MOD_SOCACHE_DC_LDADD, [$ap_distcache_ldflags $ap_distcache_libs])

    AC_DEFINE(HAVE_DISTCACHE, 1, [Define if distcache support is enabled])

  else

    enable_socache_dc=no

  fi

  ap_distcache_configured="yes"

fi

])

APACHE_MODULE(socache_shmcb,  shmcb small object cache provider, , , most)

APACHE_MODULE(socache_dbm, dbm small object cache provider, , , most)

APACHE_MODULE(socache_memcache, memcache small object cache provider, , , most)

APACHE_MODULE(socache_dc, distcache small object cache provider, , , no, [

    APACHE_CHECK_DISTCACHE

])

APR_ADDTO(INCLUDES, [-I\$(top_srcdir)/$modpath_current])

APACHE_MODPATH_FINISH