configure.ac

   1 AC_PREREQ([2.50])
   2 AC_INIT([shibboleth], [1.1], [mace-shib-users@internet2.edu], [shibboleth])
   3 AM_CONFIG_HEADER(config.h)
   4 AM_INIT_AUTOMAKE(shibboleth, 1.1)
   5
   6 sinclude(acx_pthread.m4)
   7 sinclude(acx_rpctest.m4)
   8
   9 AC_PROG_CC([gcc3 gcc cc])
  10 AC_PROG_CXX([g++3 g++ c++ CC])
  11 AC_DISABLE_STATIC
  12 AC_PROG_LIBTOOL
  13
  14 AC_LANG(C++)
  15
  16 # Checks for typedefs, structures, and compiler characteristics.
  17 AC_C_CONST
  18 AC_TYPE_SIZE_T
  19 AC_STRUCT_TM
  20
  21 # Checks for library functions.
  22 AC_FUNC_STRFTIME
  23 AC_CHECK_FUNCS([strchr strdup strstr gmtime_r strtok_r strcasecmp])
  24 AC_CHECK_HEADERS([dlfcn.h])
  25
  26 # C++ requirements
  27 AC_CXX_REQUIRE_STL
  28 AC_CXX_NAMESPACES
  29
  30
  31 # old_LIBS="$LIBS"
  32 # AC_SEARCH_LIBS(xdr_uint64_t,nsl,,
  33 #       [CFLAGS="$CFLAGS -DNEED_XDR_LONGLONG"
  34 #        CXXFLAGS="$CXXFLAGS -DNEED_XDR_LONGLONG"])
  35 # LIBS="$old_LIBS"
  36
  37 # checks for pthreads
  38 ACX_PTHREAD([enable_threads="pthread"],[enable_threads="no"])
  39 if test $enable_threads != "pthread"; then
  40     AC_MSG_ERROR([unable to find pthreads, currently this is required])
  41 else
  42     AC_DEFINE(HAVE_PTHREAD,1,[Define if you have POSIX threads libraries and header files.])
  43     LIBS="$PTHREAD_LIBS $LIBS"
  44     CFLAGS="$PTHREAD_CFLAGS $CFLAGS"
  45     CXXFLAGS="$PTHREAD_CFLAGS $CXXFLAGS"
  46 fi
  47
  48 # Test RPC now -- deal with it later
  49 ACX_RPCTEST([rpctest="yes"],[rpctest="no"])
  50
  51 # Determine whether to use TCP for the shar socket
  52 AC_ARG_ENABLE([tcp],
  53     AC_HELP_STRING([--enable-tcp], [enable the SHAR to use a TCP socket on Unix]),
  54     [tcp_enabled=$enableval], [tcp_enabled=default])
  55
  56 if test "x$tcp_enabled" = "x" ; then
  57    tcp_enabled=yes
  58 fi
  59
  60 if test "$tcp_enabled" = "yes" ; then
  61     CFLAGS="$CFLAGS -DWANT_TCP_SHAR"
  62     CXXFLAGS="$CXXFLAGS -DWANT_TCP_SHAR"
  63 fi
  64
  65 AC_ARG_WITH(dmalloc,
  66             AC_HELP_STRING([--with-dmalloc=PATH], [where dmalloc is installed]),
  67             [if test x_$with_dmalloc != x_/usr; then
  68                 LDFLAGS="-L${with_dmalloc}/lib $LDFLAGS"
  69                 CPPFLAGS="-I${with_dmalloc}/include $CPPFLAGS"
  70             fi
  71             AC_CHECK_LIB(dmallocxx, dmalloc_shutdown,,
  72                          AC_MSG_ERROR([unable to find dmallocxx library]))
  73             ])
  74
  75 AC_ARG_WITH(xerces,
  76             AC_HELP_STRING([--with-xerces=PATH], [where xerces-c is installed]),
  77             [if test x_$with_xerces != x_/usr; then
  78                 LDFLAGS="-L${with_xerces}/lib $LDFLAGS"
  79                 CPPFLAGS="-I${with_xerces}/include $CPPFLAGS"
  80             fi])
  81
  82
  83 AC_PATH_PROG(PKG_CONFIG, pkg-config)
  84 if test "x$PKG_CONFIG" = x || test "x$PKG_CONFIG" = "xno" ; then
  85     AC_ARG_WITH(openssl,
  86             AC_HELP_STRING([--with-openssl=PATH], [where openssl is installed]),
  87             [if test x_$with_openssl != x_/usr; then
  88             SSLLIBS="-L${with_openssl}/lib"
  89             SSLFLAGS="-I${with_openssl}/include"
  90             fi])
  91 else
  92     SSLLIBS="`$PKG_CONFIG --libs openssl`"
  93     SSLFLAGS="`$PKG_CONFIG --cflags openssl`"
  94 fi
  95 AC_MSG_CHECKING(for OpenSSL libraries)
  96 AC_MSG_RESULT($SSLLIBS)
  97 LDFLAGS="$SSLLIBS $LDFLAGS"
  98 AC_MSG_CHECKING(for OpenSSL cflags)
  99 AC_MSG_RESULT($SSLFLAGS)
 100 CPPFLAGS="$SSLFLAGS $CPPFLAGS"
 101
 102 AC_ARG_WITH(log4cpp,
 103             AC_HELP_STRING([--with-log4cpp=PATH], [where log4cpp is installed]),
 104             [if test x_$with_log4cpp != x_/usr; then
 105                 LDFLAGS="-L${with_log4cpp}/lib $LDFLAGS"
 106                 CPPFLAGS="-I${with_log4cpp}/include $CPPFLAGS"
 107             fi])
 108
 109 AC_ARG_WITH(xmlsec,
 110             AC_HELP_STRING([--with-xmlsec=PATH], [where xmlsec is installed]),
 111             [if test x_$with_xmlsec != x_/usr; then
 112                 LDFLAGS="-L${with_xmlsec}/lib $LDFLAGS"
 113                 CPPFLAGS="-I${with_xmlsec}/include $CPPFLAGS"
 114             fi])
 115
 116 AC_ARG_WITH(saml,
 117             AC_HELP_STRING([--with-saml=PATH], [where saml is installed]),
 118             [if test x_$with_saml != x_/usr; then
 119                 LDFLAGS="-L${with_saml}/lib $LDFLAGS"
 120                 CPPFLAGS="-I${with_saml}/include $CPPFLAGS"
 121             fi])
 122
 123 AC_CHECK_HEADER([xercesc/dom/DOM.hpp],,
 124                 AC_MSG_ERROR([unable to find xerces header files]))
 125 saved_LIBS="$LIBS"
 126 LIBS="-lxerces-c $LIBS"
 127 AC_TRY_LINK(
 128         [#include <xercesc/util/PlatformUtils.hpp>],
 129         [xercesc::XMLPlatformUtils::Initialize()],
 130         [AC_DEFINE(HAVE_LIBXERCESC,1,[Define if Xerces-C library was found])],
 131         [AC_MSG_ERROR([unable to link with Xerces])
 132                 LIBS="$saved_LIBS"
 133         ])
 134
 135 AC_CHECK_HEADER([openssl/ssl.h],,
 136                 AC_MSG_ERROR([unable to find openssl header files]))
 137 AC_MSG_CHECKING(for ERR_load_CRYPTO_string)
 138 AC_TRY_LINK_FUNC([ERR_load_CRYPTO_strings],,
 139              AC_MSG_ERROR([unable to link with openssl libraries]))
 140 AC_MSG_RESULT(yes)
 141 AC_MSG_CHECKING(for SSL_library_init)
 142 AC_TRY_LINK_FUNC([SSL_library_init],,
 143              AC_MSG_ERROR([unable to link with openssl libraries]))
 144 AC_MSG_RESULT(yes)
 145
 146 #AC_CHECK_LIB([crypto], [ERR_load_CRYPTO_strings],,
 147 #             AC_MSG_ERROR([unable to link with openssl libraries]))
 148 #AC_CHECK_LIB([ssl], [SSL_library_init],,
 149 #             AC_MSG_ERROR([unable to link with openssl libraries]))
 150
 151 AC_CHECK_HEADER([xsec/utils/XSECPlatformUtils.hpp],,
 152                 AC_MSG_ERROR([unable to find xsec header files]))
 153 saved_LIBS="$LIBS"
 154 LIBS="-lxml-security-c $LIBS"
 155 AC_TRY_LINK(
 156         [#include <xsec/utils/XSECPlatformUtils.hpp>],
 157         [XSECPlatformUtils::Initialise()],
 158         [AC_DEFINE(HAVE_LIBXSEC,1,[Define if XML-Sec library was found])],
 159         [AC_MSG_ERROR([unable to link with XML-Sec])
 160                 LIBS="$saved_LIBS"
 161         ])
 162
 163 AC_CHECK_HEADER([log4cpp/Category.hh],,
 164                 AC_MSG_ERROR([unable to find log4cpp header files]))
 165
 166 AC_CHECK_HEADER([saml/saml.h],,
 167                 AC_MSG_ERROR([unable to find saml header files]))
 168
 169 saved_LIBS="$LIBS"
 170 LIBS="-llog4cpp $LIBS"
 171 AC_TRY_LINK(
 172         [#include <log4cpp/Category.hh>],
 173         [log4cpp::Category::getInstance("foo")],
 174         [AC_DEFINE(HAVE_LIBLOG4CPP,1,[Define if log4cpp library was found])],
 175         [AC_MSG_ERROR([unable to link with log4cpp])
 176                 LIBS="$saved_LIBS"
 177         ])
 178
 179 saved_LIBS="$LIBS"
 180 LIBS="-lsaml $LIBS"
 181 AC_TRY_LINK(
 182         [#include <saml/saml.h>],
 183         [saml::SAMLConfig::getConfig()],
 184         [AC_DEFINE(HAVE_SAML,1,[Define if saml library was found])],
 185         [AC_MSG_ERROR([unable to link with saml])
 186                 LIBS="$saved_LIBS"
 187         ])
 188
 189 # output the underlying makefiles
 190 WANT_SUBDIRS="doc shib schemas configs shib-target shar siterefresh test"
 191 AC_CONFIG_FILES([Makefile doc/Makefile shib/Makefile schemas/Makefile \
 192                  configs/Makefile oncrpc/Makefile oncrpc/rpc/Makefile \
 193                  shib-target/Makefile shar/Makefile siterefresh/Makefile \
 194                  test/Makefile])
 195
 196 # now deal with the rpc library, to see if we need to build our own
 197 if test $rpctest = "no"; then
 198     WANT_SUBDIRS="oncrpc $WANT_SUBDIRS"
 199         AC_DEFINE(USE_OUR_ONCRPC,1,[Define if using embedded version of ONC RPC.])
 200 fi
 201 AM_CONDITIONAL(USE_OUR_ONCRPC,test "$rpctest" = "no")
 202
 203 # Much of this is taken from mod_dav.
 204 # The basic idea is to use configure options to control whether/which types
 205 # of web server modules get built. We assume there may eventually be multiple
 206 # types (Apache 1/2, iPlanet, others).
 207
 208 # Apache 1.3 (mod_shire/mod_shibrm)
 209 #   --with-apache-13 (static build, no idea how to do this yet, so not supported)
 210 #   --with-apxs      (DSO build, the normal way, uses apxs to derive build flags)
 211 #   --without-apxs   (DSO build, you tell us how to build using the environment)
 212
 213 AC_ARG_ENABLE(apache-13,
 214         AC_HELP_STRING([--enable-apache-13], [enable the Apache 1.3 modules]),
 215         [ if test "x$enableval" = "x" ; then
 216               WANT_APACHE_13=yes
 217           else
 218               WANT_APACHE_13="$enableval"
 219           fi
 220         ], [ WANT_APACHE_13=no ])
 221 AC_MSG_CHECKING(whether to build Apache-1.3 support)
 222 if test "$WANT_APACHE_13" != yes && test "$WANT_APACHE_13" != no ; then
 223    WANT_APACHE_13=yes
 224 fi
 225 AC_MSG_RESULT($WANT_APACHE_13)
 226
 227 if test "$WANT_APACHE_13" = yes ; then
 228
 229 AC_ARG_WITH(apxs,
 230 [  --with-apxs[=FILE]        Build shared Apache module(s). FILE is the optional
 231                           pathname to the Apache apxs tool; defaults to "apxs".],
 232 [
 233     if test "$withval" = "yes"; then
 234       for i in /usr/sbin /usr/local/apache/bin ; do
 235         if test -f "$i/apxs"; then
 236           APXS="$i/apxs"
 237         fi
 238       done
 239       if test -z "$APXS"; then
 240         APXS=apxs
 241       fi
 242     else
 243       APXS="$withval"
 244     fi
 245 ],
 246 [
 247     AC_PATH_PROG(APXS, apxs, no)
 248 ])
 249
 250 AC_MSG_CHECKING([for dynamic Apache-1.3 module support (w/ or w/o APXS)])
 251 if test "$APXS" = "no"; then
 252
 253     # --without-apxs means you want the modules,
 254     #       but want to tell us how to build them
 255     AC_MSG_RESULT(yes, but use environment, not apxs)
 256     echo
 257     echo "Did you set one or more of these?"
 258     echo
 259     echo "APXS_CFLAGS APXS_PREFIX APXS_INCLUDE APXS_LIBEXEC APXS_SYSCONFDIR"
 260     echo
 261
 262     AC_MSG_NOTICE([APXS_CFLAGS is $APXS_CFLAGS])
 263
 264     # try and find the Apache root
 265     if test -z "$APXS_PREFIX"; then
 266         if test -d "/usr/local/apache"; then
 267             APXS_PREFIX="/usr/local/apache"
 268         else
 269             AC_MSG_ERROR([You MUST set APXS_PREFIX so the right Apache can be located!])
 270         fi
 271     elif test ! -d "$APXS_PREFIX"; then
 272         AC_MSG_ERROR([APXS_PREFIX of $APXS_PREFIX cannot be found])
 273     fi
 274     AC_MSG_NOTICE([APXS_PREFIX is $APXS_PREFIX])
 275
 276
 277     # other subfolders might be derived from APXS_PREFIX
 278     if test -z "$APXS_INCLUDE"; then
 279         if test -f "$APXS_PREFIX/include/httpd.h"; then
 280             APXS_INCLUDE="$APXS_PREFIX/include"
 281         else
 282             AC_MSG_ERROR([can't find Apache include files beneath $APXS_PREFIX])
 283         fi
 284     elif ! test -f "$APXS_INCLUDE/httpd.h"; then
 285         AC_MSG_ERROR([APXS_INCLUDE of $APXS_INCLUDE does not contain Apache headers])
 286     fi
 287     AC_MSG_NOTICE([APXS_INCLUDE is $APXS_INCLUDE])
 288
 289     if test -z "$APXS_LIBEXEC"; then
 290         if test -d "$APXS_PREFIX/libexec"; then
 291             APXS_LIBEXEC="$APXS_PREFIX/libexec"
 292         elif test -d "$APXS_PREFIX/modules"; then
 293             APXS_LIBEXEC="$APXS_PREFIX/modules"
 294         else
 295             AC_MSG_ERROR([can't find Apache libexec/module directory beneath $APXS_PREFIX])
 296         fi
 297     elif ! test -d "$APXS_LIBEXEC"; then
 298         AC_MSG_ERROR([APXS_LIBEXEC of $APXS_LIBEXEC does not exist])
 299     fi
 300     AC_MSG_NOTICE([APXS_LIBEXEC is $APXS_LIBEXEC])
 301
 302     if test -z "$APXS_SYSCONFDIR"; then
 303         if test -d "$APXS_PREFIX/conf"; then
 304             APXS_SYSCONFDIR="$APXS_PREFIX/conf"
 305         else
 306             AC_MSG_ERROR([can't find Apache conf directory beneath $APXS_PREFIX])
 307         fi
 308     elif ! test -d "$APXS_SYSCONFDIR"; then
 309         AC_MSG_ERROR([APXS_SYSCONFDIR of $APXS_SYSCONFDIR does not exist])
 310     fi
 311     AC_MSG_NOTICE([APXS_SYSCONFDIR is $APXS_SYSCONFDIR])
 312
 313     WANT_APACHE_13="yes"
 314
 315 elif test -n "$APXS"; then
 316
 317     # extract settings we need from APXS -q
 318     APXS_CC="`$APXS -q CC`"
 319     APXS_CFLAGS="`$APXS -q CFLAGS` `$APXS -q CFLAGS_SHLIB`"
 320     APXS_INCLUDE="`$APXS -q INCLUDEDIR`"
 321     APXS_LIBEXEC="`$APXS -q LIBEXECDIR`"
 322     APXS_SYSCONFDIR="`$APXS -q SYSCONFDIR`"
 323
 324     AC_SUBST(APXS)
 325     AC_MSG_RESULT(found at $APXS)
 326
 327     if test -z "`$APXS -q LD_SHLIB`" || test "$APXS_LIBEXEC" = "modules"; then
 328             AC_MSG_ERROR(
 329 [Your APXS installation is broken and cannot be used.
 330     Please see http://www.webdav.org/mod_dav/install.html#apxs for
 331     more information.])
 332     fi
 333
 334     WANT_APACHE_13="yes"
 335
 336 else
 337     # guess we're not doing Apache 1.3
 338     AC_MSG_RESULT(no)
 339     WANT_APACHE_13="no"
 340 fi
 341 fi
 342
 343 if test "$WANT_APACHE_13" = "yes"; then
 344     AC_ARG_WITH(apreq,
 345                 AC_HELP_STRING([--with-apreq=PATH], [where libapreq is installed]),
 346                 [if test x_$with_apreq != x_/usr; then
 347                     LDFLAGS="-L${with_apreq}/lib $LDFLAGS"
 348                     CPPFLAGS="-I${with_apreq}/include $CPPFLAGS"
 349                 fi])
 350
 351     saved_CPPFLAGS="$CPPFLAGS"
 352     CPPFLAGS="-I$APXS_INCLUDE $APXS_CFLAGS $CPPFLAGS"
 353     AC_TRY_COMPILE([#include <libapreq/apache_request.h>],
 354                    [int i=0],
 355                    test_apreq="yes",test_apreq="no")
 356     if test "$test_apreq" = "no"; then
 357         CPPFLAGS="$CPPFLAGS -U_XOPEN_SOURCE"
 358         APXS_CFLAGS="$APXS_CFLAGS -U_XOPEN_SOURCE"
 359         AC_CHECK_HEADER([libapreq/apache_request.h],,
 360             AC_MSG_ERROR([unable to find a usable libapreq header]))
 361     fi
 362
 363 dnl    saved_LIBS="$LIBS"
 364 dnl    LIBS="-lapreq $LIBS"
 365 dnl    AC_TRY_LINK(
 366 dnl        [#include <libapreq/apache_request.h>],
 367 dnl        [ApacheRequest_expires],
 368 dnl        [AC_DEFINE(HAVE_APREQ,1,[Define if apreq library was found])],
 369 dnl        [AC_MSG_ERROR([unable to link with apreq])
 370 dnl        ])
 371 dnl    LIBS="$saved_LIBS"
 372     CPPFLAGS="$saved_CPPFLAGS"
 373
 374     AC_ARG_ENABLE([apxs-install],
 375         AC_HELP_STRING([--enable-apxs-install],
 376                         [use apxs to install the apache modules]),
 377         APXS_INSTALL="yes", )
 378
 379
 380     AC_SUBST(APXS_CFLAGS)
 381     AC_SUBST(APXS_INCLUDE)
 382     AC_SUBST(APXS_LIBEXEC)
 383     AC_SUBST(APXS_SYSCONFDIR)
 384
 385     # output the Apache 1.3 makefiles
 386     WANT_SUBDIRS="$WANT_SUBDIRS mod_shire mod_shibrm"
 387 fi
 388 # always output the Makefile, even if we don't use it
 389 AC_CONFIG_FILES([mod_shire/Makefile mod_shibrm/Makefile])
 390 AM_CONDITIONAL(HAVE_APXS,test -n "$APXS")
 391 AM_CONDITIONAL(DO_APXS_INSTALL,test -n "$APXS_INSTALL")
 392
 393
 394 # Apache 2.0 (mod_shib in apache-2.0)
 395 #   --with-apache-20   (static build, no idea how to do this yet, so not supported)
 396 #   --with-apxs2       (DSO build, the normal way, uses apxs to derive build flags)
 397 #   --without-apxs2    (DSO build, you tell us how to build using the environment)
 398
 399 AC_ARG_ENABLE(apache-20,
 400         AC_HELP_STRING([--enable-apache-20], [enable the Apache 2.0 modules]),
 401         [ if test "x$enableval" = "x" ; then
 402               WANT_APACHE_20=yes
 403           else
 404               WANT_APACHE_20="$enableval"
 405           fi
 406         ], [ WANT_APACHE_20=no ])
 407
 408 AC_MSG_CHECKING(whether to build Apache-2.0 support)
 409 if test "$WANT_APACHE_20" != yes && test "$WANT_APACHE_20" != no ; then
 410    WANT_APACHE_20=yes
 411 fi
 412 AC_MSG_RESULT($WANT_APACHE_20)
 413
 414 if test "$WANT_APACHE_20" = yes ; then
 415
 416 AC_ARG_WITH(apxs2,
 417 [  --with-apxs2[=FILE]        Build shared Apache module(s). FILE is the optional
 418                           pathname to the Apache apxs tool; defaults to "apxs".],
 419 [
 420     if test "$withval" = "yes"; then
 421       for i in /usr/sbin /usr/local/apache/bin ; do
 422         if test -f "$i/apxs"; then
 423           APXS2="$i/apxs"
 424         fi
 425       done
 426       if test -z "$APXS2"; then
 427         APXS2=apxs
 428       fi
 429     else
 430       APXS2="$withval"
 431     fi
 432 ],
 433 [
 434     AC_PATH_PROG(APXS2, apxs, no)
 435 ])
 436
 437 AC_MSG_CHECKING([for dynamic Apache-2 module support (w/ or w/o APXS)])
 438 if test "$APXS2" = "no"; then
 439
 440     # --without-apxs2 means you want the modules,
 441     #       but want to tell us how to build them
 442     AC_MSG_RESULT(yes, but use environment, not apxs)
 443     echo
 444     echo "Did you set one or more of these?"
 445     echo
 446     echo "APXS2_CFLAGS APXS2_PREFIX APXS2_INCLUDE APXS2_LIBEXEC APXS2_SYSCONFDIR"
 447     echo
 448
 449     AC_MSG_NOTICE([APXS2_CFLAGS is $APXS2_CFLAGS])
 450
 451     # try and find the Apache root
 452     if test -z "$APXS2_PREFIX"; then
 453         if test -d "/usr/local/apache"; then
 454             APXS2_PREFIX="/usr/local/apache"
 455         else
 456             AC_MSG_ERROR([You MUST set APXS2_PREFIX so the right Apache-2 can be located!])
 457         fi
 458     elif test ! -d "$APXS2_PREFIX"; then
 459         AC_MSG_ERROR([APXS2_PREFIX of $APXS2_PREFIX cannot be found])
 460     fi
 461     AC_MSG_NOTICE([APXS2_PREFIX is $APXS2_PREFIX])
 462
 463
 464     # other subfolders might be derived from APXS2_PREFIX
 465     if test -z "$APXS2_INCLUDE"; then
 466         if test -f "$APXS2_PREFIX/include/httpd.h"; then
 467             APXS2_INCLUDE="$APXS2_PREFIX/include"
 468         else
 469             AC_MSG_ERROR([can't find Apache-2 include files beneath $APXS2_PREFIX])
 470         fi
 471     elif ! test -f "$APXS2_INCLUDE/httpd.h"; then
 472         AC_MSG_ERROR([APXS2_INCLUDE of $APXS2_INCLUDE does not contain Apache-2 headers])
 473     fi
 474     AC_MSG_NOTICE([APXS2_INCLUDE is $APXS2_INCLUDE])
 475
 476     if test -z "$APXS2_LIBEXEC"; then
 477         if test -d "$APXS2_PREFIX/libexec"; then
 478             APXS2_LIBEXEC="$APXS2_PREFIX/libexec"
 479         elif test -d "$APXS2_PREFIX/modules"; then
 480             APXS2_LIBEXEC="$APXS2_PREFIX/modules"
 481         else
 482             AC_MSG_ERROR([can't find Apache-2 libexec/module directory beneath $APXS2_PREFIX])
 483         fi
 484     elif ! test -d "$APXS2_LIBEXEC"; then
 485         AC_MSG_ERROR([APXS2_LIBEXEC of $APXS2_LIBEXEC does not exist])
 486     fi
 487     AC_MSG_NOTICE([APXS2_LIBEXEC is $APXS2_LIBEXEC])
 488
 489     if test -z "$APXS2_SYSCONFDIR"; then
 490         if test -d "$APXS2_PREFIX/conf"; then
 491             APXS2_SYSCONFDIR="$APXS2_PREFIX/conf"
 492         else
 493             AC_MSG_ERROR([can't find Apache-2 conf directory beneath $APXS2_PREFIX])
 494         fi
 495     elif ! test -d "$APXS2_SYSCONFDIR"; then
 496         AC_MSG_ERROR([APXS2_SYSCONFDIR of $APXS2_SYSCONFDIR does not exist])
 497     fi
 498     AC_MSG_NOTICE([APXS2_SYSCONFDIR is $APXS2_SYSCONFDIR])
 499
 500     WANT_APACHE_20="yes"
 501
 502 elif test -n "$APXS2"; then
 503
 504     # extract settings we need from APXS2 -q
 505     APXS2_CC="`$APXS2 -q CC`"
 506     APXS2_CFLAGS="`$APXS2 -q CFLAGS` `$APXS2 -q CFLAGS_SHLIB`"
 507     APXS2_INCLUDE="`$APXS2 -q INCLUDEDIR`"
 508     APXS2_LIBEXEC="`$APXS2 -q LIBEXECDIR`"
 509     APXS2_SYSCONFDIR="`$APXS2 -q SYSCONFDIR`"
 510
 511     AC_SUBST(APXS2)
 512     AC_MSG_RESULT(found at $APXS2)
 513
 514     if test -z "`$APXS2 -q LD_SHLIB`" && test -z "`$APXS2 -q LIBEXECDIR`" \
 515        || test "$APXS2_LIBEXEC" = "modules"; then
 516             AC_MSG_ERROR(
 517 [Your APXS installation is broken and cannot be used.
 518     Please see http://www.webdav.org/mod_dav/install.html#apxs for
 519     more information.])
 520     fi
 521
 522     WANT_APACHE_20="yes"
 523
 524 else
 525     # guess we're not doing Apache 2.0
 526     AC_MSG_RESULT(no)
 527     WANT_APACHE_20="no"
 528 fi
 529 fi
 530
 531 if test "$WANT_APACHE_20" = "yes"; then
 532     AC_ARG_WITH(apreq2,
 533                 AC_HELP_STRING([--with-apreq2=PATH], [where http-apreq-2 is installed]),
 534                 [if test x_$with_apreq2 != x_/usr; then
 535                     LDFLAGS="-L${with_apreq2}/lib $LDFLAGS"
 536                     CPPFLAGS="-I${with_apreq2}/include $CPPFLAGS"
 537                 fi])
 538
 539     saved_CPPFLAGS="$CPPFLAGS"
 540     CPPFLAGS="-I$APXS2_INCLUDE $APXS2_CFLAGS $CPPFLAGS"
 541     AC_TRY_COMPILE([#include <apreq.h>],
 542                    [int i=0],
 543                    test_apreq2="yes",test_apreq2="no")
 544     if test "$test_apreq2" = "no"; then
 545         CPPFLAGS="$CPPFLAGS -U_XOPEN_SOURCE"
 546         APXS2_CFLAGS="$APXS2_CFLAGS -U_XOPEN_SOURCE"
 547         AC_CHECK_HEADER([apreq.h],,
 548             AC_MSG_ERROR([unable to find a usable libapreq2 header]))
 549     fi
 550
 551 dnl    saved_LIBS="$LIBS"
 552 dnl    LIBS="-lapreq $LIBS"
 553 dnl    AC_TRY_LINK(
 554 dnl        [#include <apreq.h>],
 555 dnl        [apreq_param],
 556 dnl        [AC_DEFINE(HAVE_APREQ2,1,[Define if apreq2 library was found])],
 557 dnl        [AC_MSG_ERROR([unable to link with apreq2])
 558 dnl        ])
 559 dnl    LIBS="$saved_LIBS"
 560     CPPFLAGS="$saved_CPPFLAGS"
 561
 562     AC_ARG_ENABLE([apxs2-install],
 563         AC_HELP_STRING([--enable-apxs2-install],
 564                         [use apxs to install the apache-2 modules]),
 565         APXS2_INSTALL="yes", )
 566
 567
 568     AC_SUBST(APXS2_CFLAGS)
 569     AC_SUBST(APXS2_INCLUDE)
 570     AC_SUBST(APXS2_LIBEXEC)
 571     AC_SUBST(APXS2_SYSCONFDIR)
 572
 573     # output the Apache 2.0 makefiles
 574     WANT_SUBDIRS="$WANT_SUBDIRS apache-2.0"
 575 fi
 576 # always output the Makefile, even if we don't use it
 577 AC_CONFIG_FILES([apache-2.0/Makefile])
 578 AM_CONDITIONAL(HAVE_APXS2,test -n "$APXS2")
 579 AM_CONDITIONAL(DO_APXS2_INSTALL,test -n "$APXS2_INSTALL")
 580
 581
 582 #
 583 # Implement the checks of the MySQL Credential Cache
 584 #
 585 # 1) Assume the user wants MySQL; if it's not found then just continue without
 586 # 2) If the user specifically requested Mysql, look for it and ERROR if not found
 587 # 3) If the user specifically requested no-mysql, don't build it.
 588 #
 589
 590 AC_CONFIG_FILES([shib-mysql-ccache/Makefile])
 591
 592 # determine whether we should enable the mysql ccache
 593 AC_ARG_ENABLE([mysql],
 594         AC_HELP_STRING([--disable-mysql], [disable the MySQL Credential Cache]),
 595         [mysql_enabled=$enableval], [mysql_enabled=default])
 596
 597 if test "x$mysql_enabled" = "x" ; then
 598    mysql_enabled=yes
 599 fi
 600
 601 # Are we trying to build MySQL?
 602 AC_MSG_CHECKING(whether to build the MySQL ccache)
 603 if test "$mysql_enabled" = "yes" ; then
 604    build_mysql=yes
 605    AC_MSG_RESULT(yes)
 606 elif test "$mysql_enabled" = "default" ; then
 607    build_mysql=yes
 608    AC_MSG_RESULT([yes, if it can be found])
 609 else
 610    build_mysql=no
 611    AC_MSG_RESULT(no)
 612 fi
 613
 614 # If we're trying to build MySQL, try to find the mysql_config program,
 615 # verify we've got mysql >= 4, and make sure we can build with mysqld
 616 if test "$build_mysql" = "yes" ; then
 617    mysql_dir=""
 618    AC_ARG_WITH(mysql,
 619         AC_HELP_STRING([--with-mysql=PATH], [directory where mysql is installed]),
 620             [if test "$with_mysql" = no ; then
 621                AC_MSG_ERROR([Try running --disable-mysql instead.])
 622              elif test "$with_mysql" != yes ; then
 623                mysql_dir="$with_mysql/bin"
 624              fi ])
 625
 626    # Try to find the mysql_config program
 627    AC_PATH_PROG(MYSQL_CONFIG, mysql_config, no, $mysql_dir $PATH )
 628
 629    if test "$MYSQL_CONFIG" = no ; then
 630       if test "$mysql_enabled" = "yes" ; then
 631         AC_MSG_ERROR(Cannot find mysql_config)
 632       else
 633         AC_MSG_WARN(MySQL not found.  skipping.)
 634       fi
 635    fi
 636 fi
 637
 638 # if we found mysql_config then build_mysql is 'yes'
 639 if test "$MYSQL_CONFIG" != no ; then
 640    AC_MSG_CHECKING(for mysql version >= 4)
 641    mysql_version=`$MYSQL_CONFIG --version`
 642    mysql_major_version=`echo $mysql_version | awk -F. '{print $1}'`
 643    mysql_version_ok=yes
 644    if test $mysql_major_version -lt 4 ; then
 645      mysql_version_ok=no
 646      if test "$mysql_enabled" = "yes" ; then
 647        AC_MSG_ERROR(You need MySQL version >= 4, found $mysql_version)
 648      fi
 649      AC_MSG_RESULT(no.. skipping MySQL)
 650    else
 651      AC_MSG_RESULT(yes)
 652    fi
 653 fi
 654
 655 # if mysql_version_ok is 'yes', then we've made it this far.. ;)
 656 if test "$mysql_version_ok" = "yes" ; then
 657    AC_MSG_CHECKING(for embedded-MySQL libraries)
 658    MYSQL_LIBS=`$MYSQL_CONFIG --libmysqld-libs`
 659    if test $? != 0 ; then
 660       found_mysql=no
 661       if test "$mysql_enabled" = "yes" ; then
 662         AC_MSG_ERROR(Could not find the MySQL Embedded-server libraries.)
 663       else
 664         AC_MSG_RESULT(no.. skipping MySQL)
 665       fi
 666    else
 667       found_mysql=yes
 668       AC_MSG_RESULT(yes)
 669    fi
 670 fi
 671
 672 # if found_mysql=yes then test that we can actually build mysql
 673 if test "$found_mysql" = yes ; then
 674    MYSQL_CFLAGS=`$MYSQL_CONFIG --cflags`
 675    MYSQL_CFLAGS=`eval echo $MYSQL_CFLAGS`
 676    MYSQL_LIBS=`eval echo $MYSQL_LIBS`
 677
 678    save_CPPFLAGS="$CPPFLAGS"
 679    CPPFLAGS="$CPPFLAGS $MYSQL_CFLAGS"
 680
 681    AC_CHECK_HEADER([mysql.h], [have_mysql_h=yes], [have_mysql_h=no])
 682    if test "$have_mysql_h" = no -a "$mysql_enabled" = "yes" ; then
 683      AC_MSG_ERROR(unable to find MySQL header files)
 684    fi
 685
 686    if test "$have_mysql_h" = yes ; then
 687       save_LIBS="$LIBS"
 688       LIBS="$LIBS $MYSQL_LIBS"
 689       AC_MSG_CHECKING(if we can link againt mysql)
 690       AC_TRY_LINK(
 691         [#include <mysql.h>
 692          #include <stdio.h>],
 693         [mysql_server_init(0, NULL, NULL)],
 694         [have_mysql_libs=yes],
 695         [have_mysql_libs=no])
 696       LIBS="$save_LIBS"
 697
 698       if test "$have_mysql_libs" = no ; then
 699          if test "$mysql_enabled" = "yes" ; then
 700             AC_MSG_ERROR([unable to link with MySQL Embedded Server Library])
 701          else
 702             AC_MSG_RESULT(no.  skipping MySQL)
 703          fi
 704       fi
 705    fi
 706
 707    CPPFLAGS="$save_CPPFLAGS"
 708 fi
 709
 710 # if have_mysql_libs=yes then go ahead with building MySQL
 711 if test "$have_mysql_libs" = yes ; then
 712    # this AC_MSG_RESULT is from above!
 713    AC_MSG_RESULT(yes)
 714    WANT_SUBDIRS="$WANT_SUBDIRS shib-mysql-ccache"
 715    AC_SUBST(MYSQL_CFLAGS)
 716    AC_SUBST(MYSQL_LIBS)
 717 fi
 718
 719
 720 AC_SUBST(WANT_SUBDIRS)
 721
 722 if test -n "$APXS_CC" && test "$APXS_CC" != "$CC" ; then
 723   echo "=================================================================="
 724   echo "WARNING: You have chosen to compile Apache-1.3 modules with a different"
 725   echo "         compiler than the one used to compile Apache."
 726   echo ""
 727   echo "    Current compiler:      $CC"
 728   echo "   Apache's compiler:      $APXS_CC"
 729   echo ""
 730   echo "This could cause some problems."
 731   echo "=================================================================="
 732 fi
 733
 734 if test -n "$APXS2_CC" && test "$APXS2_CC" != "$CC" ; then
 735   echo "=================================================================="
 736   echo "WARNING: You have chosen to compile Apache-2 modules with a different"
 737   echo "         compiler than the one used to compile Apache."
 738   echo ""
 739   echo "    Current compiler:      $CC"
 740   echo "   Apache's compiler:      $APXS2_CC"
 741   echo ""
 742   echo "This could cause some problems."
 743   echo "=================================================================="
 744 fi
 745
 746 AC_OUTPUT
 747