chiark - git - mdw - disorder/blob - configure.ac

   1 # Process this file with autoconf to produce a configure script.
   2 #
   3 # This file is part of DisOrder.
   4 # Copyright (C) 2004-2008 Richard Kettlewell
   5 # Portions copyright (C) 2007 Ross Younger
   6 #
   7 # This program is free software; you can redistribute it and/or modify
   8 # it under the terms of the GNU General Public License as published by
   9 # the Free Software Foundation; either version 2 of the License, or
  10 # (at your option) any later version.
  11 #
  12 # This program is distributed in the hope that it will be useful, but
  13 # WITHOUT ANY WARRANTY; without even the implied warranty of
  14 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  15 # General Public License for more details.
  16 #
  17 # You should have received a copy of the GNU General Public License
  18 # along with this program; if not, write to the Free Software
  19 # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
  20 # USA
  21 #
  22
  23 AC_INIT([disorder], [4.0+], [richard+disorder@sfere.greenend.org.uk])
  24 AC_CONFIG_AUX_DIR([config.aux])
  25 AM_INIT_AUTOMAKE(disorder, [4.0+])
  26 AC_CONFIG_SRCDIR([server/disorderd.c])
  27 AM_CONFIG_HEADER([config.h])
  28
  29 # Find host type
  30 AC_CANONICAL_HOST
  31
  32 # What we want to build
  33 want_gtk=yes
  34 want_python=yes
  35 want_tests=yes
  36 want_server=yes
  37 want_cgi=yes
  38
  39 # APIs we want
  40 want_alsa=yes
  41 want_oss=yes
  42 want_coreaudio=yes
  43
  44 # Checks for programs.
  45 AC_PROG_CC
  46 AC_SET_MAKE
  47 if test "x$GCC" = xyes; then
  48   gcc_werror=-Werror
  49 else
  50   AC_MSG_ERROR([GNU C is required to build this program])
  51   gcc_werror=""
  52 fi
  53
  54 AC_ARG_WITH([alsa],
  55             [AS_HELP_STRING([--without-alsa],
  56                             [do not build with ALSA support])],
  57             [want_alsa=$withval])
  58 AC_ARG_WITH([oss],
  59             [AS_HELP_STRING([--without-oss],
  60                             [do not build with OSS support])],
  61             [want_oss=$withval])
  62 AC_ARG_WITH([coreaudio],
  63             [AS_HELP_STRING([--without-coreaudio],
  64                             [do not build with Core Audio support])],
  65             [want_coreaudio=$withval])
  66 AC_ARG_WITH([tests],
  67             [AS_HELP_STRING([--without-tests],
  68                             [do not build test suit])],
  69             [want_tests=$withval])
  70
  71 AC_MSG_CHECKING([for a known target platform])
  72 case "$host" in
  73 *empeg* )
  74   AC_MSG_RESULT([empeg car stereo])
  75   AC_DEFINE([EMPEG_HOST],[1],[define if host is an empeg car stereo])
  76   # work around broken toolchain
  77   AC_CHECK_LIB([gpg-error], [gpg_strerror])
  78   AC_CHECK_LIB([pthread], [pthread_create])
  79   want_server=no
  80   want_cgi=no
  81  ;;
  82 *linux* | *Linux* )
  83   AC_MSG_RESULT([Linux])
  84   ;;
  85 *-apple-darwin* )
  86   AC_MSG_RESULT([Mac OS X])
  87   if test $want_coreaudio = yes; then
  88     COREAUDIO="-framework CoreAudio"
  89   fi
  90   browser=open
  91   AC_MSG_CHECKING([Mac OS X target version])
  92   # We honor MACOSX_DEPLOYMENT_TARGET in the environment, emulating gcc's
  93   # behaviour.  But we provide a command line option to override it and
  94   # we default to wide support instead of supporting only the build platform.
  95   #
  96   # Currently if you ask for 10.5 you will get a deprecation warning
  97   # when building the CoreAudio support code.  For the time being the
  98   # answer to this is "don't do that then".  If a good reason to ask
  99   # for a 10.5 deployment target emerges then this will be fixed.
 100   if test -z "$MACOSX_DEPLOYMENT_TARGET"; then
 101     MACOSX_DEPLOYMENT_TARGET=10.0
 102   fi
 103   AC_ARG_WITH([deployment-target],
 104               [AS_HELP_STRING([--with-deployment-target=TARGET],
 105                               [set target OS X version])],
 106               [MACOSX_DEPLOYMENT_TARGET=$withval])
 107   # Convert to desired format
 108   underscored=`echo $MACOSX_DEPLOYMENT_TARGET|sed 's/\./_/'`
 109   minver="MAC_OS_X_VERSION_$underscored"
 110   AC_MSG_RESULT([$minver])
 111   AC_DEFINE_UNQUOTED([MAC_OS_X_VERSION_MIN_REQUIRED], [$minver],
 112                      [define to minimum version of Mac OS X to support])
 113   ;;
 114 *-freebsd* )
 115   AC_MSG_RESULT([FreeBSD])
 116   # Ports install to /usr/local but the compiler stupidly doesn't look
 117   # there by default
 118   LDFLAGS="${LDFLAGS} -L/usr/local/lib"
 119   CPPFLAGS="${CPPFLAGS} -isystem /usr/local/include"
 120   # Look for a suitable version of libdb among the versions found in FreeBSD 7.0
 121   AC_CACHE_CHECK([looking for a libdb install],[rjk_cv_libdb],[
 122     rjk_cv_libdb="none"
 123     for db in db43 db44 db45 db46; do
 124       if test -e /usr/local/lib/$db; then
 125         rjk_cv_libdb=$db
 126         break
 127       fi
 128     done
 129   ])
 130   if test $rjk_cv_libdb != none; then
 131     LDFLAGS="${LDFLAGS} -L/usr/local/lib/$rjk_cv_libdb"
 132     CPPFLAGS="${CPPFLAGS} -isystem /usr/local/include/$rjk_cv_libdb"
 133   fi
 134   ;;
 135 * )
 136   AC_MSG_RESULT([unknown, winging it])
 137   ;;
 138 esac
 139 AC_SUBST([COREAUDIO])
 140
 141 AC_ARG_WITH([browser],
 142             [AS_HELP_STRING([--with-browser=BROWSER],
 143                             [use BROWSER to display HTML])],
 144             [browser=$withval])
 145
 146 AC_CACHE_CHECK([default HTML viewer],[rjk_cv_browser],[
 147   rjk_cv_browser=UNKNOWN
 148   for candidate in x-www-browser sensible-browser firefox mozilla konqueror netscape; do
 149     if type $candidate >/dev/null 2>&1; then
 150       rjk_cv_browser="$candidate"
 151       break
 152     fi
 153   done
 154 ])
 155 if test -z "$browser"; then
 156   browser="$rjk_cv_browser"
 157 fi
 158 AC_DEFINE_UNQUOTED([BROWSER],["$browser"],[HTML viewer])
 159
 160 AC_ARG_WITH([server],
 161             [AS_HELP_STRING([--without-server],
 162                             [do not build server])],
 163             [want_server=$withval])
 164 AC_ARG_WITH([cgi],
 165             [AS_HELP_STRING([--without-cgi],
 166                             [do not build CGI])],
 167             [want_cgi=$withval])
 168 AC_ARG_WITH([gtk],
 169             [AS_HELP_STRING([--without-gtk],
 170                             [do not build GTK+ client])],
 171             [want_gtk=$withval])
 172 AC_ARG_WITH([python],
 173             [AS_HELP_STRING([--without-python],
 174                             [do not build Python support])],
 175             [want_python=$withval])
 176
 177 if test $want_server = no; then
 178   want_cgi=no
 179 fi
 180
 181 #
 182 # OS          Document Root                  CGI directory
 183 # ==          =============                  =============
 184 # Debian      /var/www                       /usr/lib/cgi-bin
 185 # Ubuntu      /var/www                       /usr/lib/cgi-bin
 186 # Red Hat     /var/www/html                  /var/www/cgi-bin
 187 #      or:    /home/httpd/html/              /home/httpd/cgi-bin
 188 # Slackware   /var/www/htdocs                (unknown)
 189 # SuSE        /srv/www/html                  /srv/www/cgi-bin
 190 # Gentoo      /var/www/localhost/htdocs      /var/www/localhost/cgi-bin/
 191 # FreeBSD     /usr/local/www/data            /usr/local/www/cgi-bin
 192 #      or:    /usr/local/www/???/data        /usr/local/www/???/cgi-bin
 193 # OS X        /Library/WebServer/Documents   /Library/WebServer/CGI-Executables
 194 # Apache      /usr/local/apache/htdocs       (none)
 195 #
 196 # Sources:
 197 #   http://wiki.linuxquestions.org/wiki/Apache
 198 #   http://mapserver.gis.umn.edu/docs/howto/suse-linux
 199 #   http://www.yolinux.com/TUTORIALS/LinuxTutorialWebSiteConfig.html
 200 #   http://sources.gentoo.org/viewcvs.py/apache/trunk/dist/2.2/conf/vhosts.d/default_vhost.include?rev=198&view=log
 201 #   http://httpd.apache.org/docs/
 202 #
 203 if test $want_cgi = yes; then
 204   if test -z "$httpdir"; then
 205     AC_CACHE_CHECK([for httpd document root],[rjk_cv_httpdir],[
 206       rjk_cv_httpdir="not found"
 207       for dir in /var/www/html \
 208                  /var/www/htdocs \
 209                  /var/www/localhost/htdocs \
 210                  /var/www \
 211                  /home/httpd/html \
 212                  /srv/www/html \
 213                  /usr/local/www/data \
 214                  /usr/local/www/*/data \
 215                  /Library/WebServer/Documents \
 216                  /usr/local/apache/htdocs; do
 217         if test -d "$dir"; then
 218           rjk_cv_httpdir="$dir"
 219         fi
 220       done
 221     ])
 222     if test "$rjk_cv_cgiexecdir" = "not found"; then
 223       AC_MSG_ERROR([cannot identify httpd documentroot.  Set httpdir on configure command line])
 224     fi
 225     httpdir="$rjk_cv_httpdir"
 226   fi
 227   if test ! -z "$cgidir"; then
 228     # This is a bit harsh but should stop any disasters
 229     AC_MSG_ERROR([cgidir has been renamed to cgiexecdir])
 230   fi
 231   if test -z "$cgiexecdir"; then
 232     AC_CACHE_CHECK([for CGI directory],[rjk_cv_cgiexecdir],[
 233       rjk_cv_cgiexecdir="not found"
 234       for dir in /usr/lib/cgi-bin \
 235                  /Library/WebServer/CGI-Executables \
 236                  /srv/www/cgi-bin \
 237                  /var/www/cgi-bin \
 238                  /home/httpd/cgi-bin \
 239                  /var/www/localhost/cgi-bin \
 240                  /usr/local/lib/cgi-bin \
 241                  /usr/local/www/cgi-bin \
 242                  /usr/local/www/*/cgi-bin; do
 243         if test -d "$dir"; then
 244           rjk_cv_cgiexecdir="$dir"
 245           break
 246         fi
 247       done
 248     ])
 249     if test "$rjk_cv_cgiexecdir" = "not found"; then
 250       AC_MSG_ERROR([cannot identify CGI install directory.  Set cgiexecdir on configure command line])
 251     fi
 252     cgiexecdir="$rjk_cv_cgiexecdir"
 253   fi
 254 fi
 255 AC_ARG_VAR([cgiexecdir], [location of cgi-bin directory, e.g. /usr/lib/cgi-bin])
 256 AC_ARG_VAR([httpdir], [location of http document root, e.g. /var/www/htdocs])
 257 if test -z "$pkghttpdir"; then
 258   pkghttpdir='$(httpdir)/disorder'
 259 fi
 260 AC_SUBST([pkghttpdir])
 261
 262 subdirs="scripts lib"
 263 if test $want_tests = yes; then
 264   subdirs="${subdirs} libtests"
 265 fi
 266 subdirs="${subdirs} clients doc examples debian"
 267
 268 if test $want_server = yes; then
 269   subdirs="${subdirs} server plugins driver sounds"
 270 fi
 271 if test $want_cgi = yes; then
 272   subdirs="${subdirs} cgi templates images"
 273 fi
 274 if test $want_gtk = yes; then
 275   subdirs="${subdirs} disobedience"
 276   if test $want_server = no; then
 277     subdirs="${subdirs} images"
 278   fi
 279 fi
 280 if test $want_tests = yes && test $want_python = yes; then
 281   AM_PATH_PYTHON([2.4])
 282   subdirs="${subdirs} python tests"
 283 fi
 284 AC_SUBST([subdirs])
 285
 286 # libtool config
 287 AC_LIBTOOL_DLOPEN
 288 AC_DISABLE_STATIC
 289
 290 AC_PROG_LIBTOOL
 291
 292 AC_CACHE_CHECK([for GNU sed],[rjk_cv_gnused],[
 293   rjk_cv_gnused="not found"
 294   for candidate in sed gsed; do
 295     if $candidate --version >/dev/null 2>&1; then
 296       rjk_cv_gnused=$candidate
 297     fi
 298   done
 299 ])
 300 GNUSED="${GNUSED:-$rjk_cv_gnused}"
 301 if test "$GNUSED" = "not found"; then
 302   AC_MSG_ERROR([GNU sed is required to build this program])
 303 fi
 304 AC_SUBST([GNUSED])
 305
 306 AC_CHECK_PROGS([GROG],[grog])
 307 AM_CONDITIONAL([GROG],[test "x$GROG" != xnone])
 308
 309 missing_libraries=""
 310 missing_headers=""
 311 missing_functions=""
 312
 313 AC_DEFINE(_GNU_SOURCE, 1, [required for e.g. strsignal])
 314
 315 AC_PATH_PROG([SENDMAIL],[sendmail],[none],[$PATH:/usr/sbin:/usr/lib])
 316
 317 # Macs might have libraries under fink's root
 318 AC_PATH_PROG([FINK],[fink],[none],[$PATH:/sw/bin])
 319 if test "x$FINK" != xnone; then
 320   AC_CACHE_CHECK([fink install directory],[rjk_cv_finkprefix],[
 321     rjk_cv_finkprefix="`echo "$FINK" | sed 's,/bin/fink$,,'`"
 322   ])
 323   finkdir="${rjk_cv_finkprefix}"
 324   finkbindir="${rjk_cv_finkprefix}/bin"
 325   CPPFLAGS="${CPPFLAGS} -I${rjk_cv_finkprefix}/include/gc -I${rjk_cv_finkprefix}/include"
 326   if test $want_server = yes; then
 327     CPPFLAGS="${CPPFLAGS} -I${rjk_cv_finkprefix}/include/db4"
 328   fi
 329   LDFLAGS="${LDFLAGS} -L${rjk_cv_finkprefix}/lib"
 330 else
 331   finkbindir=""
 332 fi
 333 AC_SUBST([finkdir])
 334 AC_SUBST([finkbindir])
 335
 336 # Checks for libraries.
 337 # We save up a list of missing libraries that we can't do without
 338 # and report them all at once.
 339 AC_CHECK_LIB(gc, GC_malloc,            [AC_SUBST(LIBGC,[-lgc])],
 340             [missing_libraries="$missing_libraries libgc"])
 341 AC_CHECK_LIB(gcrypt, gcry_md_open,
 342              [AC_SUBST(LIBGCRYPT,[-lgcrypt])],
 343             [missing_libraries="$missing_libraries libgcrypt"])
 344 AC_CHECK_LIB(pcre, pcre_compile,
 345              [AC_SUBST(LIBPCRE,[-lpcre])],
 346              [missing_libraries="$missing_libraries libpcre"])
 347 if test $want_alsa = yes; then
 348   AC_CHECK_LIB([asound], [snd_pcm_open],
 349                [AC_SUBST(LIBASOUND,[-lasound])])
 350 fi
 351 if test $want_server = yes; then
 352   RJK_CHECK_LIB(db, db_create, [#include <db.h>],
 353                [AC_SUBST(LIBDB,[-ldb])],
 354                [missing_libraries="$missing_libraries libdb"])
 355   AC_CHECK_LIB(vorbis, vorbis_info_clear,
 356                [:],
 357                [missing_libraries="$missing_libraries libvorbis"])
 358   AC_CHECK_LIB(vorbisfile, ov_open,
 359                [AC_SUBST(LIBVORBISFILE,["-lvorbisfile -lvorbis"])],
 360                [missing_libraries="$missing_libraries libvorbisfile"],
 361                [-lvorbis])
 362   AC_CHECK_LIB(mad, mad_stream_init,
 363                [AC_SUBST(LIBMAD,[-lmad])],
 364                [missing_libraries="$missing_libraries libmad"])
 365   AC_CHECK_LIB([ao], [ao_initialize],
 366                [AC_SUBST(LIBAO,[-lao])],
 367                [missing_libraries="$missing_libraries libao"])
 368   AC_CHECK_LIB([FLAC], [FLAC__stream_decoder_new],
 369                [AC_SUBST(LIBFLAC,[-lFLAC])],
 370                [missing_libraries="$missing_libraries libFLAC"])
 371 fi
 372 AC_CHECK_LIB([pthread], [pthread_create],
 373              [AC_SUBST(LIBPTHREAD,[-lpthread])],
 374              [missing_libraries="$missing_libraries libpthread"])
 375
 376 if test $want_gtk = yes; then
 377   AM_PATH_GLIB_2_0([],[],[missing_libraries="$missing_libraries libglib"])
 378   AM_PATH_GTK_2_0([],[],[missing_libraries="$missing_libraries libgtk"])
 379 fi
 380
 381 # Some platforms have iconv already
 382 AC_CHECK_FUNC(iconv_open, [:],
 383               [RJK_CHECK_LIB(iconv, iconv_open, [#include <iconv.h>],
 384                             [AC_SUBST(LIBICONV,[-liconv])],
 385                             [missing_functions="$missing_functions iconv_open"])])
 386 AC_CHECK_FUNC([gethostbyname],[:],[
 387   AC_CHECK_LIB(nsl,gethostbyname,
 388                [AC_SUBST(LIBNSL,[-lnsl])],
 389                [missing_functions="$missing_functions gethostbyname"])])
 390 AC_CHECK_FUNC([socket],[:],[
 391   AC_CHECK_LIB(socket,socket,
 392                [AC_SUBST(LIBSOCKET,[-lsocket])],
 393                [missing_functions="$missing_functions socket"])])
 394 AC_CHECK_FUNC([dlopen],[:],[
 395   AC_CHECK_LIB(dl,dlopen,
 396                [AC_SUBST(LIBDL,[-ldl])],
 397                [missing_functions="$missing_functions dlopen"])])
 398
 399 if test ! -z "$missing_libraries"; then
 400   AC_MSG_ERROR([missing libraries:$missing_libraries])
 401 fi
 402
 403 # Checks for header files.
 404 RJK_FIND_GC_H
 405 if test $want_oss = yes; then
 406   AC_CHECK_HEADERS([sys/soundcard.h])
 407 fi
 408 if test $want_alsa = yes; then
 409   AC_CHECK_HEADERS([alsa/asoundlib.h])
 410 fi
 411 if test $want_coreaudio = yes; then
 412   AC_CHECK_HEADERS([CoreAudio/AudioHardware.h])
 413 fi
 414 AC_CHECK_HEADERS([inttypes.h])
 415 # We don't bother checking very standard stuff
 416 # Compilation will fail if any of these headers are missing, so we
 417 # check for them here and fail early.
 418 if test $want_server = yes; then
 419   AC_CHECK_HEADERS([db.h],[:],[
 420     missing_headers="$missing_headers $ac_header"
 421   ])
 422   AC_CHECK_HEADERS([FLAC/file_decoder.h])
 423 fi
 424 AC_CHECK_HEADERS([dlfcn.h gcrypt.h \
 425                  getopt.h iconv.h langinfo.h \
 426                  pcre.h sys/ioctl.h \
 427                  syslog.h unistd.h],[:],[
 428   missing_headers="$missing_headers $ac_header"
 429 ])
 430
 431 if test ! -z "$missing_headers"; then
 432   AC_MSG_ERROR([missing headers:$missing_headers])
 433 fi
 434
 435 # We require that libpcre support UTF-8
 436 RJK_REQUIRE_PCRE_UTF8([-lpcre])
 437
 438 # Checks for typedefs, structures, and compiler characteristics.
 439 AC_C_CONST
 440 AC_TYPE_SIZE_T
 441 AC_C_INLINE
 442 AC_C_BIGENDIAN
 443 AC_CHECK_TYPES([struct sockaddr_in6],,,[AC_INCLUDES_DEFAULT
 444 #include <netinet/in.h>])
 445
 446 # enable -Werror when we check for certain characteristics:
 447
 448 old_CFLAGS="${CFLAGS}"
 449 CFLAGS="${CFLAGS} $gcc_werror"
 450 AC_CHECK_TYPES([long long,uint32_t,uint8_t,intmax_t,uintmax_t])
 451
 452 # Some GCC invocations warn for converting function pointers to void *.
 453 # This is fair enough, as it's technically forbidden, but we use dlsym()
 454 # which can pretty much only exist if object and function pointers are
 455 # interconvertable.  So we disable -Werror if need be.
 456 if test ! -z "$gcc_werror"; then
 457   AC_CACHE_CHECK([whether function pointers can be converted to void * without a warning],
 458                  [rjk_cv_function_pointer_cast],[
 459     AC_COMPILE_IFELSE([AC_LANG_PROGRAM([AC_INCLUDES_DEFAULT
 460   void somefunction(void);],
 461                       [(void *)somefunction])],
 462                       [rjk_cv_function_pointer_cast=yes],
 463                       [rjk_cv_function_pointer_cast=no])])
 464   if test $rjk_cv_function_pointer_cast = no; then
 465     gcc_werror=""
 466   fi
 467 fi
 468
 469 CFLAGS="${old_CFLAGS}"
 470
 471 # gcrypt maintainers keep changing everything.  Design your interface
 472 # first, then implement it once, rather than getting it wrong three or
 473 # four times and shipping between each attempt.
 474 AC_CACHE_CHECK([for hash handle type in <grypt.h>],
 475                [rjk_cv_gcrypt_hash_handle],[
 476   AC_COMPILE_IFELSE([AC_LANG_PROGRAM([AC_INCLUDES_DEFAULT
 477 #include <gcrypt.h>
 478 ],
 479                [gcry_md_hd_t h;])],
 480                [rjk_cv_gcrypt_hash_handle=gcry_md_hd_t],[
 481     AC_COMPILE_IFELSE([AC_LANG_PROGRAM([AC_INCLUDES_DEFAULT
 482 #include <gcrypt.h>
 483 ],
 484                  [GcryMDHd h;])],
 485                  [rjk_cv_gcrypt_hash_handle=GcryMDHd],
 486                  [rjk_cv_gcrypt_hash_handle=GCRY_MD_HD])])])
 487 AC_DEFINE_UNQUOTED([gcrypt_hash_handle],[$rjk_cv_gcrypt_hash_handle],
 488                    [libgcrypt hash handle type])
 489
 490 AC_CACHE_CHECK([for gcry_error_t in <grypt.h>],
 491                [rjk_cv_have_gcry_error_t],[
 492   AC_COMPILE_IFELSE([AC_LANG_PROGRAM([AC_INCLUDES_DEFAULT
 493 #include <gcrypt.h>
 494 ],
 495                  [gcry_error_t e;])],
 496                  [rjk_cv_have_gcry_error_t=yes],
 497                  [rjk_cv_have_gcry_error_t=no])])
 498 if test $rjk_cv_have_gcry_error_t = yes; then
 499   AC_DEFINE([HAVE_GCRY_ERROR_T],1,[define if <gcrypt.h> defines gcry_error_t])
 500 fi
 501
 502 # Checks for functions
 503 if test $ac_cv_type_long_long = yes; then
 504   AC_CHECK_FUNCS([atoll strtoll],[:],[
 505     missing_functions="$missing_functions $ac_func"
 506   ])
 507   # Darwin sometimes fails to declare strtoll (e.g. if you ask for -std=c99)
 508   AC_CACHE_CHECK([whether strtoll is declared in <stdlib.h>],
 509                  [rjk_cv_strtoll_declared],[
 510     AC_EGREP_HEADER([strtoll], [stdlib.h],
 511                     [rjk_cv_strtoll_declared=yes],
 512                     [rjk_cv_strtoll_declared=no])])
 513   if test $rjk_cv_strtoll_declared = yes; then
 514     AC_DEFINE([DECLARES_STRTOLL],[1],[define if <stdlib.h> declares strtoll])
 515   fi
 516   AC_CACHE_CHECK([whether atoll is declared in <stdlib.h>],
 517                  [rjk_cv_atoll_declared],[
 518     AC_EGREP_HEADER([atoll], [stdlib.h],
 519                     [rjk_cv_atoll_declared=yes],
 520                     [rjk_cv_atoll_declared=no])])
 521   if test $rjk_cv_atoll_declared = yes; then
 522     AC_DEFINE([DECLARES_ATOLL],[1],[define if <stdlib.h> declares atoll])
 523   fi
 524 fi
 525 AC_CHECK_FUNCS([ioctl nl_langinfo strsignal setenv unsetenv],[:],[
 526   missing_functions="$missing_functions $ac_func"
 527 ])
 528 # fsync will do if fdatasync not available
 529 AC_CHECK_FUNCS([fdatasync],[:],[
 530   AC_CHECK_FUNCS([fsync],
 531                  [AC_DEFINE([fdatasync],[fsync],[define fdatasync to fsync if not available])],
 532                  [missing_functions="$missing_functions fdatasync"])])
 533 if test ! -z "$missing_functions"; then
 534   AC_MSG_ERROR([missing functions:$missing_functions])
 535 fi
 536
 537 # Functions we can take or leave
 538 AC_CHECK_FUNCS([fls])
 539
 540 if test $want_server = yes; then
 541   # <db.h> had better be version 3 or later
 542   AC_CACHE_CHECK([db.h version],[rjk_cv_db_version],[
 543     AC_PREPROC_IFELSE([
 544                        #include <db.h>
 545                        #ifndef DB_VERSION_MAJOR
 546                        # error cannot determine db version
 547                        #endif
 548                        #if DB_VERSION_MAJOR < 4
 549                        # error inadequate db version
 550                        #endif
 551                        #if DB_VERSION_MAJOR == 4 && DB_VERSION_MINOR <= 2
 552                        # error inadequate db version
 553                        #endif
 554                       ],
 555                       [rjk_cv_db_version=ok],
 556                       [rjk_cv_db_version=inadequate])
 557   ])
 558   if test $rjk_cv_db_version != ok; then
 559     AC_MSG_ERROR([need db.h version at least 4.2])
 560   fi
 561 fi
 562
 563 AM_CONDITIONAL([SERVER], [test x$want_server = xyes])
 564 if test $want_gtk = yes; then
 565   AC_DEFINE([WITH_GTK], [1], [define if using GTK+])
 566 fi
 567
 568 if test "x$GCC" = xyes; then
 569   # We need LLONG_MAX and annoyingly GCC doesn't always give it to us
 570   # by default.
 571   AC_CACHE_CHECK([what C version to ask for],[rjk_cv_cstd],[
 572     AC_TRY_COMPILE([#include <limits.h>],[
 573       long long n = LLONG_MAX;
 574     ],[rjk_cv_cstd=default],[
 575       old_CC="$CC"
 576       CC="${CC} -std=gnu99"
 577       AC_TRY_COMPILE([#include <limits.h>],[
 578         long long n = LLONG_MAX;
 579       ],[rjk_cv_cstd=gnu99],[rjk_cv_cstd=unknown])
 580       CC="$old_CC"
 581     ])
 582   ])
 583   case $rjk_cv_cstd in
 584   default | unknown )
 585     ;;
 586   * )
 587     CC="${CC} -std=${rjk_cv_cstd}"
 588     ;;
 589   esac
 590
 591   # http://gcc.gnu.org/bugzilla/show_bug.cgi?id=29478
 592   AC_CACHE_CHECK([checking for GCC bug 29478],[rjk_cv_pr29478],[
 593     old_CC="$CC"
 594     if test $GCC = yes; then
 595       CC="$CC -Wall -Werror"
 596     fi
 597     AC_COMPILE_IFELSE([
 598       static int x(char *f) {
 599        return *f;
 600       }
 601       int z(const char *g) {
 602         return x((char *)g);
 603       }],
 604       [rjk_cv_pr29478=no],
 605       [rjk_cv_pr29478=yes]
 606     )
 607     CC="$old_CC"
 608   ])
 609   if test $rjk_cv_pr29478 = yes; then
 610     gcc_werror=''
 611   fi
 612
 613   # a reasonable default set of warnings
 614   CC="${CC} -Wall -W -Wpointer-arith -Wbad-function-cast \
 615         -Wwrite-strings -Wmissing-prototypes \
 616         -Wmissing-declarations -Wnested-externs"
 617
 618   # Fix up GTK+ and GLib compiler flags
 619   GTK_CFLAGS="`echo \"$GTK_CFLAGS\"|sed 's/-I/-isystem /g'`"
 620   GLIB_CFLAGS="`echo \"$GLIB_CFLAGS\"|sed 's/-I/-isystem /g'`"
 621
 622   if test "$gcc_werror" != ''; then
 623     # GCC 2.95 doesn't know to ignore warnings from system headers
 624     AC_CACHE_CHECK([whether -Werror is usable],
 625                     rjk_cv_werror, [
 626       save_CFLAGS="${CFLAGS}"
 627       CFLAGS="${CFLAGS} ${GTK_CFLAGS} -Werror"
 628       AC_TRY_COMPILE([#if WITH_GTK
 629  #include <gtk/gtk.h>
 630 #endif
 631
 632 struct s { int a, b; };
 633 const struct s sv = { .a = 1 };],
 634                      [],
 635                      [rjk_cv_werror=yes],
 636                      [rjk_cv_werror=no])
 637       CFLAGS="${save_CFLAGS}"
 638     ])
 639     if test $rjk_cv_werror = no; then
 640       gcc_werror=''
 641     fi
 642   fi
 643   CC="${CC} $gcc_werror"
 644
 645   # for older GCCs that don't know %ju (etc)
 646   AC_CACHE_CHECK([whether -Wno-format is required],
 647                  rjk_cv_noformat,
 648                  AC_TRY_COMPILE([#include <stdio.h>
 649 #include <stdint.h>
 650 ],
 651                                 [printf("%ju", (uintmax_t)0);],
 652                                 [rjk_cv_noformat=no],
 653                                 [rjk_cv_noformat=yes]))
 654   if test $rjk_cv_noformat = yes; then
 655     CC="${CC} -Wno-format"
 656   fi
 657
 658   AC_CACHE_CHECK([whether -Wshadow is OK],
 659                  rjk_cv_shadow,
 660                  oldCC="${CC}"
 661                  CC="${CC} -Wshadow"
 662                  [AC_TRY_COMPILE([
 663 #include <unistd.h>
 664 #include <vorbis/vorbisfile.h>
 665 ],
 666                                 [],
 667                                 [rjk_cv_shadow=yes],
 668                                 [rjk_cv_shadow=no])
 669                  CC="${oldCC}"])
 670   if test $rjk_cv_shadow = yes; then
 671     CC="${CC} -Wshadow"
 672   fi
 673 fi
 674
 675 RJK_GCOV
 676
 677 AH_BOTTOM([#ifdef __GNUC__
 678 # define attribute(x) __attribute__(x)
 679 #else
 680 # define attribute(x)
 681 #endif])
 682
 683 AC_CONFIG_FILES([Makefile
 684                  images/Makefile
 685                  scripts/Makefile
 686                  lib/Makefile
 687                  server/Makefile
 688                  cgi/Makefile
 689                  clients/Makefile
 690                  disobedience/Makefile
 691                  doc/Makefile
 692                  templates/Makefile
 693                  plugins/Makefile
 694                  driver/Makefile
 695                  debian/Makefile
 696                  sounds/Makefile
 697                  python/Makefile
 698                  examples/Makefile
 699                  libtests/Makefile
 700                  tests/Makefile])
 701 AC_OUTPUT
 702
 703 if test $GCC = yes && test "$gcc_werror" = ''; then
 704   AC_MSG_WARN([building without -Werror])
 705 fi
 706 if test $want_python = no; then
 707   AC_MSG_WARN([cannot run the test suit without Python])
 708 fi
 709
 710 # Local Variables:
 711 # indent-tabs-mode:nil
 712 # End: