Remove old apache-1.3 and apache-2.0 code, as we now use the combined module
[shibboleth/sp.git] / configure.ac
1 AC_PREREQ([2.50])
2 AC_INIT([shibboleth], [1.2], [shibboleth-users@internet2.edu], [shibboleth])
3 AM_CONFIG_HEADER(config.h)
4 AM_INIT_AUTOMAKE(shibboleth, 1.2)
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_FUNC_STRERROR_R
24 AC_CHECK_FUNCS([strchr strdup strstr gmtime_r strtok_r strcasecmp])
25 AC_CHECK_HEADERS([dlfcn.h])
26
27 # C++ requirements
28 AC_CXX_REQUIRE_STL
29 AC_CXX_NAMESPACES
30
31
32 # old_LIBS="$LIBS"
33 # AC_SEARCH_LIBS(xdr_uint64_t,nsl,,
34 #       [CFLAGS="$CFLAGS -DNEED_XDR_LONGLONG"
35 #        CXXFLAGS="$CXXFLAGS -DNEED_XDR_LONGLONG"])
36 # LIBS="$old_LIBS"
37
38 # checks for pthreads
39 ACX_PTHREAD([enable_threads="pthread"],[enable_threads="no"])
40 if test $enable_threads != "pthread"; then
41     AC_MSG_ERROR([unable to find pthreads, currently this is required])
42 else
43     AC_DEFINE(HAVE_PTHREAD,1,[Define if you have POSIX threads libraries and header files.])
44     LIBS="$PTHREAD_LIBS $LIBS"
45     CFLAGS="$PTHREAD_CFLAGS $CFLAGS"
46     CXXFLAGS="$PTHREAD_CFLAGS $CXXFLAGS"
47 fi
48
49 # Test RPC now -- deal with it later
50 ACX_RPCTEST([rpctest="yes"],[rpctest="no"])
51
52 AC_ARG_WITH(dmalloc,
53             AC_HELP_STRING([--with-dmalloc=PATH], [where dmalloc is installed]),
54             [if test x_$with_dmalloc != x_/usr; then
55                 LDFLAGS="-L${with_dmalloc}/lib $LDFLAGS"
56                 CPPFLAGS="-I${with_dmalloc}/include $CPPFLAGS"
57             fi
58             AC_CHECK_LIB(dmallocxx, dmalloc_shutdown,,
59                          AC_MSG_ERROR([unable to find dmallocxx library]))
60             ])
61
62 # OpenSSL settings
63 AC_PATH_PROG(PKG_CONFIG, pkg-config)
64 if test "x$PKG_CONFIG" = x || test "x$PKG_CONFIG" = "xno" ; then
65     AC_ARG_WITH(openssl, 
66             AC_HELP_STRING([--with-openssl=PATH], [where openssl is installed]),
67             [if test x_$with_openssl != x_/usr; then
68             SSLLIBS="-L${with_openssl}/lib"
69             SSLFLAGS="-I${with_openssl}/include"
70             fi])
71     SSLLIBS="$SSLLIBS -lssl -lcrypto"
72 else
73     SSLLIBS="`$PKG_CONFIG --libs openssl`"
74     SSLFLAGS="`$PKG_CONFIG --cflags openssl`"
75 fi
76 AC_MSG_CHECKING(for OpenSSL libraries)
77 AC_MSG_RESULT($SSLLIBS)
78 LIBS="$LIBS $SSLLIBS"
79 AC_MSG_CHECKING(for OpenSSL cflags)
80 AC_MSG_RESULT($SSLFLAGS)
81 CPPFLAGS="$SSLFLAGS $CPPFLAGS"
82
83 AC_CHECK_HEADER([openssl/ssl.h],,
84                 AC_MSG_ERROR([unable to find openssl header files]))
85 AC_MSG_CHECKING(for ERR_load_CRYPTO_string)
86 AC_TRY_LINK_FUNC([ERR_load_CRYPTO_strings],,
87              AC_MSG_ERROR([unable to link with openssl libraries]))
88 AC_MSG_RESULT(yes)
89 AC_MSG_CHECKING(for SSL_library_init)
90 AC_TRY_LINK_FUNC([SSL_library_init],, 
91              AC_MSG_ERROR([unable to link with openssl libraries]))
92 AC_MSG_RESULT(yes)
93
94 # log4cpp settings
95 AC_PATH_PROG(LOG4CPP_CONFIG,log4cpp-config)
96 AC_ARG_WITH(log4cpp,
97             AC_HELP_STRING([--with-log4cpp=PATH], [where log4cpp is installed]),
98             [LOG4CPP_CONFIG="${with_log4cpp}/bin/log4cpp-config"])
99 if test -f ${LOG4CPP_CONFIG}; then
100     LDFLAGS="`${LOG4CPP_CONFIG} --libs` $LDFLAGS"
101     CPPFLAGS="`${LOG4CPP_CONFIG} --cflags` $CPPFLAGS"
102 else
103     AC_MSG_WARN([log4cpp-config not found, guessing at log4cpp build settings])
104     LIBS="-llog4cpp $LIBS"
105 fi
106 AC_CHECK_HEADER([log4cpp/Category.hh],,AC_MSG_ERROR([unable to find log4cpp header files]))
107 AC_TRY_LINK(
108         [#include <log4cpp/Category.hh>],
109         [log4cpp::Category::getInstance("foo")],
110         [AC_DEFINE(HAVE_LIBLOG4CPP,1,[Define if log4cpp library was found])],
111         [AC_MSG_ERROR([unable to link with log4cpp])])
112
113 # Xerces settings
114 AC_ARG_WITH(xerces, 
115             AC_HELP_STRING([--with-xerces=PATH], [where xerces-c is installed]),
116             [if test x_$with_xerces != x_/usr; then
117                 LDFLAGS="-L${with_xerces}/lib $LDFLAGS"
118                 CPPFLAGS="-I${with_xerces}/include $CPPFLAGS"
119             fi])
120 LIBS="-lxerces-c $LIBS"
121 AC_CHECK_HEADER([xercesc/dom/DOM.hpp],,
122                 AC_MSG_ERROR([unable to find xerces header files]))
123 AC_TRY_LINK(
124         [#include <xercesc/util/PlatformUtils.hpp>],
125         [xercesc::XMLPlatformUtils::Initialize()],
126         [AC_DEFINE(HAVE_LIBXERCESC,1,[Define if Xerces-C library was found])],
127         [AC_MSG_ERROR([unable to link with Xerces])])
128
129 # XML-Security settings
130 AC_ARG_WITH(xmlsec,
131             AC_HELP_STRING([--with-xmlsec=PATH], [where xmlsec is installed]),
132             [if test x_$with_xmlsec != x_/usr; then
133                 LDFLAGS="-L${with_xmlsec}/lib $LDFLAGS"
134                 CPPFLAGS="-I${with_xmlsec}/include $CPPFLAGS"
135             fi])
136 LIBS="-lxml-security-c $LIBS"
137 AC_CHECK_HEADER([xsec/utils/XSECPlatformUtils.hpp],,AC_MSG_ERROR([unable to find xsec header files]))
138 AC_TRY_LINK(
139         [#include <xsec/utils/XSECPlatformUtils.hpp>],
140         [XSECPlatformUtils::Initialise()],
141         [AC_DEFINE(HAVE_LIBXSEC,1,[Define if XML-Sec library was found])],
142         [AC_MSG_ERROR([unable to link with XML-Sec])])
143
144 # OpenSAML settings
145 AC_ARG_WITH(saml,
146             AC_HELP_STRING([--with-saml=PATH], [where saml is installed]),
147             [if test x_$with_saml != x_/usr; then
148                 LDFLAGS="-L${with_saml}/lib $LDFLAGS"
149                 CPPFLAGS="-I${with_saml}/include $CPPFLAGS"
150             fi])
151 AC_CHECK_HEADER([saml/saml.h],,
152                 AC_MSG_ERROR([unable to find saml header files]))
153 LIBS="-lsaml $LIBS"
154 AC_TRY_LINK(
155         [#include <saml/saml.h>],
156         [saml::SAMLConfig::getConfig()],
157         [AC_DEFINE(HAVE_SAML,1,[Define if saml library was found])],
158         [AC_MSG_ERROR([unable to link with saml])])
159
160
161 # output the underlying makefiles
162 WANT_SUBDIRS="doc shib schemas configs shib-target shar siterefresh test xmlproviders"
163 AC_CONFIG_FILES([Makefile doc/Makefile shib/Makefile schemas/Makefile \
164                  configs/Makefile oncrpc/Makefile oncrpc/rpc/Makefile \
165                  shib-target/Makefile shar/Makefile siterefresh/Makefile \
166                  test/Makefile xmlproviders/Makefile])
167
168
169 # now deal with the rpc library, to see if we need to build our own
170 if test $rpctest = "no"; then
171     WANT_SUBDIRS="oncrpc $WANT_SUBDIRS"
172         AC_DEFINE(USE_OUR_ONCRPC,1,[Define if using embedded version of ONC RPC.])
173 fi
174 AM_CONDITIONAL(USE_OUR_ONCRPC,test "$rpctest" = "no")
175
176
177 # Apache 1.3 (mod_shib_13)
178 #   --with-apache-13 (static build, no idea how to do this yet, so not supported)
179 #   --with-apxs      (DSO build, the normal way, uses apxs to derive build flags)
180 #   --without-apxs   (DSO build, you tell us how to build using the environment)
181
182 AC_ARG_ENABLE(apache-13,
183         AC_HELP_STRING([--enable-apache-13], [enable the Apache 1.3 modules]),
184         [ if test "x$enableval" = "x" ; then
185               WANT_APACHE_13=yes
186           else
187               WANT_APACHE_13="$enableval"
188           fi
189         ], [ WANT_APACHE_13=no ])
190 AC_MSG_CHECKING(whether to build Apache-1.3 support)
191 if test "$WANT_APACHE_13" != yes && test "$WANT_APACHE_13" != no ; then
192    WANT_APACHE_13=yes
193 fi
194 AC_MSG_RESULT($WANT_APACHE_13)
195
196 if test "$WANT_APACHE_13" = yes ; then
197
198 AC_ARG_WITH(apxs,
199 [  --with-apxs[=FILE]        Build shared Apache module(s). FILE is the optional
200                           pathname to the Apache apxs tool; defaults to "apxs".],
201 [
202     if test "$withval" = "yes"; then
203       for i in /usr/sbin /usr/local/apache/bin ; do
204         if test -f "$i/apxs"; then
205           APXS="$i/apxs"
206         fi
207       done
208       if test -z "$APXS"; then
209         APXS=apxs
210       fi
211     else
212       APXS="$withval"
213     fi
214 ],
215 [
216     AC_PATH_PROG(APXS, apxs, no)
217 ])
218
219 AC_MSG_CHECKING([for dynamic Apache-1.3 module support (w/ or w/o APXS)])
220 if test "$APXS" = "no"; then
221
222     # --without-apxs means you want the modules,
223     #       but want to tell us how to build them
224     AC_MSG_RESULT(yes, but use environment, not apxs)
225     echo
226     echo "Did you set one or more of these?"
227     echo
228     echo "APXS_CFLAGS APXS_PREFIX APXS_INCLUDE APXS_LIBEXEC APXS_SYSCONFDIR"
229     echo
230
231     AC_MSG_NOTICE([APXS_CFLAGS is $APXS_CFLAGS])
232
233     # try and find the Apache root
234     if test -z "$APXS_PREFIX"; then
235         if test -d "/usr/local/apache"; then
236             APXS_PREFIX="/usr/local/apache"
237         else
238             AC_MSG_ERROR([You MUST set APXS_PREFIX so the right Apache can be located!])
239         fi
240     elif test ! -d "$APXS_PREFIX"; then
241         AC_MSG_ERROR([APXS_PREFIX of $APXS_PREFIX cannot be found])
242     fi
243     AC_MSG_NOTICE([APXS_PREFIX is $APXS_PREFIX])
244     
245
246     # other subfolders might be derived from APXS_PREFIX
247     if test -z "$APXS_INCLUDE"; then
248         if test -f "$APXS_PREFIX/include/httpd.h"; then
249             APXS_INCLUDE="$APXS_PREFIX/include"
250         else
251             AC_MSG_ERROR([can't find Apache include files beneath $APXS_PREFIX])
252         fi
253     elif ! test -f "$APXS_INCLUDE/httpd.h"; then
254         AC_MSG_ERROR([APXS_INCLUDE of $APXS_INCLUDE does not contain Apache headers])
255     fi
256     AC_MSG_NOTICE([APXS_INCLUDE is $APXS_INCLUDE])
257
258     if test -z "$APXS_LIBEXEC"; then
259         if test -d "$APXS_PREFIX/libexec"; then
260             APXS_LIBEXEC="$APXS_PREFIX/libexec"
261         elif test -d "$APXS_PREFIX/modules"; then
262             APXS_LIBEXEC="$APXS_PREFIX/modules"
263         else
264             AC_MSG_ERROR([can't find Apache libexec/module directory beneath $APXS_PREFIX])
265         fi
266     elif ! test -d "$APXS_LIBEXEC"; then
267         AC_MSG_ERROR([APXS_LIBEXEC of $APXS_LIBEXEC does not exist])
268     fi
269     AC_MSG_NOTICE([APXS_LIBEXEC is $APXS_LIBEXEC])
270
271     if test -z "$APXS_SYSCONFDIR"; then
272         if test -d "$APXS_PREFIX/conf"; then
273             APXS_SYSCONFDIR="$APXS_PREFIX/conf"
274         else
275             AC_MSG_ERROR([can't find Apache conf directory beneath $APXS_PREFIX])
276         fi
277     elif ! test -d "$APXS_SYSCONFDIR"; then
278         AC_MSG_ERROR([APXS_SYSCONFDIR of $APXS_SYSCONFDIR does not exist])
279     fi
280     AC_MSG_NOTICE([APXS_SYSCONFDIR is $APXS_SYSCONFDIR])
281
282     WANT_APACHE_13="yes"
283
284 elif test -n "$APXS"; then
285
286     # extract settings we need from APXS -q
287     APXS_CC="`$APXS -q CC`"
288     APXS_CFLAGS="`$APXS -q CFLAGS` `$APXS -q CFLAGS_SHLIB`"
289     APXS_INCLUDE="`$APXS -q INCLUDEDIR`"
290     APXS_LIBEXEC="`$APXS -q LIBEXECDIR`"
291     APXS_SYSCONFDIR="`$APXS -q SYSCONFDIR`"
292
293     AC_SUBST(APXS)
294     AC_MSG_RESULT(found at $APXS)
295
296     if test -z "`$APXS -q LD_SHLIB`" || test "$APXS_LIBEXEC" = "modules"; then
297             AC_MSG_ERROR(
298 [Your APXS installation is broken and cannot be used.
299     Please see http://www.webdav.org/mod_dav/install.html#apxs for
300     more information.])
301     fi
302
303     WANT_APACHE_13="yes"
304
305 else
306     # guess we're not doing Apache 1.3
307     AC_MSG_RESULT(no)
308     WANT_APACHE_13="no"
309 fi
310 fi
311
312 if test "$WANT_APACHE_13" = "yes"; then
313     AC_ARG_ENABLE([apxs-install],
314         AC_HELP_STRING([--enable-apxs-install],
315                         [use apxs to install the apache modules]),
316         APXS_INSTALL="yes", )
317
318
319     AC_SUBST(APXS_CFLAGS)
320     AC_SUBST(APXS_INCLUDE)
321     AC_SUBST(APXS_LIBEXEC)
322     AC_SUBST(APXS_SYSCONFDIR)
323 fi
324 AM_CONDITIONAL(HAVE_APXS,test -n "$APXS")
325 AM_CONDITIONAL(DO_APXS_INSTALL,test -n "$APXS_INSTALL")
326
327
328 # Apache 2.0 (mod_shib_20)
329 #   --with-apache-20   (static build, no idea how to do this yet, so not supported)
330 #   --with-apxs2       (DSO build, the normal way, uses apxs to derive build flags)
331 #   --without-apxs2    (DSO build, you tell us how to build using the environment)
332
333 AC_ARG_ENABLE(apache-20,
334         AC_HELP_STRING([--enable-apache-20], [enable the Apache 2.0 modules]),
335         [ if test "x$enableval" = "x" ; then
336               WANT_APACHE_20=yes
337           else
338               WANT_APACHE_20="$enableval"
339           fi
340         ], [ WANT_APACHE_20=no ])
341
342 AC_MSG_CHECKING(whether to build Apache-2.0 support)
343 if test "$WANT_APACHE_20" != yes && test "$WANT_APACHE_20" != no ; then
344    WANT_APACHE_20=yes
345 fi
346 AC_MSG_RESULT($WANT_APACHE_20)
347
348 if test "$WANT_APACHE_20" = yes ; then
349
350 AC_ARG_WITH(apxs2,
351 [  --with-apxs2[=FILE]        Build shared Apache module(s). FILE is the optional
352                           pathname to the Apache apxs tool; defaults to "apxs".],
353 [
354     if test "$withval" = "yes"; then
355       for i in /usr/sbin /usr/local/apache/bin ; do
356         if test -f "$i/apxs"; then
357           APXS2="$i/apxs"
358         fi
359       done
360       if test -z "$APXS2"; then
361         APXS2=apxs
362       fi
363     else
364       APXS2="$withval"
365     fi
366 ],
367 [
368     AC_PATH_PROG(APXS2, apxs, no)
369 ])
370
371 AC_MSG_CHECKING([for dynamic Apache-2 module support (w/ or w/o APXS)])
372 if test "$APXS2" = "no"; then
373
374     # --without-apxs2 means you want the modules,
375     #       but want to tell us how to build them
376     AC_MSG_RESULT(yes, but use environment, not apxs)
377     echo
378     echo "Did you set one or more of these?"
379     echo
380     echo "APXS2_CFLAGS APXS2_PREFIX APXS2_INCLUDE APXS2_LIBEXEC APXS2_SYSCONFDIR"
381     echo
382
383     AC_MSG_NOTICE([APXS2_CFLAGS is $APXS2_CFLAGS])
384
385     # try and find the Apache root
386     if test -z "$APXS2_PREFIX"; then
387         if test -d "/usr/local/apache"; then
388             APXS2_PREFIX="/usr/local/apache"
389         else
390             AC_MSG_ERROR([You MUST set APXS2_PREFIX so the right Apache-2 can be located!])
391         fi
392     elif test ! -d "$APXS2_PREFIX"; then
393         AC_MSG_ERROR([APXS2_PREFIX of $APXS2_PREFIX cannot be found])
394     fi
395     AC_MSG_NOTICE([APXS2_PREFIX is $APXS2_PREFIX])
396     
397
398     # other subfolders might be derived from APXS2_PREFIX
399     if test -z "$APXS2_INCLUDE"; then
400         if test -f "$APXS2_PREFIX/include/httpd.h"; then
401             APXS2_INCLUDE="$APXS2_PREFIX/include"
402         else
403             AC_MSG_ERROR([can't find Apache-2 include files beneath $APXS2_PREFIX])
404         fi
405     elif ! test -f "$APXS2_INCLUDE/httpd.h"; then
406         AC_MSG_ERROR([APXS2_INCLUDE of $APXS2_INCLUDE does not contain Apache-2 headers])
407     fi
408     AC_MSG_NOTICE([APXS2_INCLUDE is $APXS2_INCLUDE])
409
410     if test -z "$APXS2_LIBEXEC"; then
411         if test -d "$APXS2_PREFIX/libexec"; then
412             APXS2_LIBEXEC="$APXS2_PREFIX/libexec"
413         elif test -d "$APXS2_PREFIX/modules"; then
414             APXS2_LIBEXEC="$APXS2_PREFIX/modules"
415         else
416             AC_MSG_ERROR([can't find Apache-2 libexec/module directory beneath $APXS2_PREFIX])
417         fi
418     elif ! test -d "$APXS2_LIBEXEC"; then
419         AC_MSG_ERROR([APXS2_LIBEXEC of $APXS2_LIBEXEC does not exist])
420     fi
421     AC_MSG_NOTICE([APXS2_LIBEXEC is $APXS2_LIBEXEC])
422
423     if test -z "$APXS2_SYSCONFDIR"; then
424         if test -d "$APXS2_PREFIX/conf"; then
425             APXS2_SYSCONFDIR="$APXS2_PREFIX/conf"
426         else
427             AC_MSG_ERROR([can't find Apache-2 conf directory beneath $APXS2_PREFIX])
428         fi
429     elif ! test -d "$APXS2_SYSCONFDIR"; then
430         AC_MSG_ERROR([APXS2_SYSCONFDIR of $APXS2_SYSCONFDIR does not exist])
431     fi
432     AC_MSG_NOTICE([APXS2_SYSCONFDIR is $APXS2_SYSCONFDIR])
433
434     WANT_APACHE_20="yes"
435
436 elif test -n "$APXS2"; then
437
438     # extract settings we need from APXS2 -q
439     APXS2_CC="`$APXS2 -q CC`"
440     APXS2_CFLAGS="`$APXS2 -q CFLAGS` `$APXS2 -q CFLAGS_SHLIB`"
441     APXS2_INCLUDE="`$APXS2 -q INCLUDEDIR`"
442     APXS2_LIBEXEC="`$APXS2 -q LIBEXECDIR`"
443     APXS2_SYSCONFDIR="`$APXS2 -q SYSCONFDIR`"
444
445     AC_SUBST(APXS2)
446     AC_MSG_RESULT(found at $APXS2)
447
448     if test -z "`$APXS2 -q LD_SHLIB`" && test -z "`$APXS2 -q LIBEXECDIR`" \
449        || test "$APXS2_LIBEXEC" = "modules"; then
450             AC_MSG_ERROR(
451 [Your APXS installation is broken and cannot be used.
452     Please see http://www.webdav.org/mod_dav/install.html#apxs for
453     more information.])
454     fi
455
456     WANT_APACHE_20="yes"
457
458 else
459     # guess we're not doing Apache 2.0
460     AC_MSG_RESULT(no)
461     WANT_APACHE_20="no"
462 fi
463 fi
464
465 if test "$WANT_APACHE_20" = "yes"; then
466     AC_ARG_ENABLE([apxs2-install],
467         AC_HELP_STRING([--enable-apxs2-install],
468                         [use apxs to install the apache-2 modules]),
469         APXS2_INSTALL="yes", )
470
471     AC_SUBST(APXS2_CFLAGS)
472     AC_SUBST(APXS2_INCLUDE)
473     AC_SUBST(APXS2_LIBEXEC)
474     AC_SUBST(APXS2_SYSCONFDIR)
475 fi
476 AM_CONDITIONAL(HAVE_APXS2,test -n "$APXS2")
477 AM_CONDITIONAL(DO_APXS2_INSTALL,test -n "$APXS2_INSTALL")
478
479 # always output the Makefile, even if you don't use it
480 AC_CONFIG_FILES([apache/Makefile])
481 AM_CONDITIONAL(BUILD_AP13,test "$WANT_APACHE_13" = "yes")
482 AM_CONDITIONAL(BUILD_AP20,test "$WANT_APACHE_20" = "yes")
483
484 # add the apache module to the list of wanted subdirs..
485 if test "$WANT_APACHE_13" = "yes" || test "$WANT_APACHE_20" = "yes" ; then
486     WANT_SUBDIRS="$WANT_SUBDIRS apache"
487 fi
488
489
490 #
491 # Implement the checks of the MySQL Credential Cache
492 #
493 # 1) Assume the user wants MySQL; if it's not found then just continue without
494 # 2) If the user specifically requested Mysql, look for it and ERROR if not found
495 # 3) If the user specifically requested no-mysql, don't build it.
496 #
497
498 AC_CONFIG_FILES([shib-mysql-ccache/Makefile])
499
500 # determine whether we should enable the mysql ccache
501 AC_ARG_ENABLE([mysql],
502         AC_HELP_STRING([--disable-mysql], [disable the MySQL Credential Cache]),
503         [mysql_enabled=$enableval], [mysql_enabled=default])
504
505 if test "x$mysql_enabled" = "x" ; then
506    mysql_enabled=yes
507 fi
508
509 # Are we trying to build MySQL?
510 AC_MSG_CHECKING(whether to build the MySQL ccache)
511 if test "$mysql_enabled" = "yes" ; then
512    build_mysql=yes
513    AC_MSG_RESULT(yes)
514 elif test "$mysql_enabled" = "default" ; then
515    build_mysql=yes
516    AC_MSG_RESULT([yes, if it can be found])
517 else
518    build_mysql=no
519    AC_MSG_RESULT(no)
520 fi
521
522 # If we're trying to build MySQL, try to find the mysql_config program,
523 # verify we've got mysql >= 4, and make sure we can build with mysqld
524 if test "$build_mysql" = "yes" ; then
525    mysql_dir=""
526    AC_ARG_WITH(mysql,
527         AC_HELP_STRING([--with-mysql=PATH], [directory where mysql is installed]),
528             [if test "$with_mysql" = no ; then
529                AC_MSG_ERROR([Try running --disable-mysql instead.])
530              elif test "$with_mysql" != yes ; then
531                mysql_dir="$with_mysql/bin"
532              fi ])
533
534    # Try to find the mysql_config program
535    AC_PATH_PROG(MYSQL_CONFIG, mysql_config, no, $mysql_dir $PATH )
536
537    if test "$MYSQL_CONFIG" = no ; then
538       if test "$mysql_enabled" = "yes" ; then
539         AC_MSG_ERROR(Cannot find mysql_config)
540       else
541         AC_MSG_WARN(MySQL not found.  skipping.)
542       fi
543    fi
544 fi
545
546 # if we found mysql_config then build_mysql is 'yes'
547 if test "$MYSQL_CONFIG" != no ; then
548    AC_MSG_CHECKING(for mysql version >= 4)
549    mysql_version=`$MYSQL_CONFIG --version`
550    mysql_major_version=`echo $mysql_version | awk -F. '{print $1}'`
551    mysql_version_ok=yes
552    if test $mysql_major_version -lt 4 ; then
553      mysql_version_ok=no
554      if test "$mysql_enabled" = "yes" ; then
555        AC_MSG_ERROR(You need MySQL version >= 4, found $mysql_version)
556      fi
557      AC_MSG_RESULT(no.. skipping MySQL)
558    else
559      AC_MSG_RESULT(yes)
560    fi
561 fi
562
563 # if mysql_version_ok is 'yes', then we've made it this far.. ;)
564 if test "$mysql_version_ok" = "yes" ; then
565    AC_MSG_CHECKING(for embedded-MySQL libraries)
566    MYSQL_LIBS=`$MYSQL_CONFIG --libmysqld-libs`
567    if test $? != 0 ; then
568       found_mysql=no
569       if test "$mysql_enabled" = "yes" ; then
570         AC_MSG_ERROR(Could not find the MySQL Embedded-server libraries.)
571       else
572         AC_MSG_RESULT(no.. skipping MySQL)
573       fi
574    else
575       found_mysql=yes
576       AC_MSG_RESULT(yes)
577    fi
578 fi
579
580 # if found_mysql=yes then test that we can actually build mysql
581 if test "$found_mysql" = yes ; then
582    MYSQL_CFLAGS=`$MYSQL_CONFIG --cflags`
583    MYSQL_CFLAGS=`eval echo $MYSQL_CFLAGS`
584    MYSQL_LIBS=`eval echo $MYSQL_LIBS`
585
586    save_CPPFLAGS="$CPPFLAGS"
587    CPPFLAGS="$CPPFLAGS $MYSQL_CFLAGS"
588
589    AC_CHECK_HEADER([mysql.h], [have_mysql_h=yes], [have_mysql_h=no])
590    if test "$have_mysql_h" = no -a "$mysql_enabled" = "yes" ; then
591      AC_MSG_ERROR(unable to find MySQL header files)
592    fi
593
594    if test "$have_mysql_h" = yes ; then
595       save_LIBS="$LIBS"
596       LIBS="$LIBS $MYSQL_LIBS"
597       AC_MSG_CHECKING(if we can link againt mysql)
598       AC_TRY_LINK(
599         [#include <mysql.h>
600          #include <stdio.h>],
601         [mysql_server_init(0, NULL, NULL)],
602         [have_mysql_libs=yes],
603         [have_mysql_libs=no])
604       LIBS="$save_LIBS"
605
606       if test "$have_mysql_libs" = no ; then
607          if test "$mysql_enabled" = "yes" ; then
608             AC_MSG_ERROR([unable to link with MySQL Embedded Server Library])
609          else
610             AC_MSG_RESULT(no.  skipping MySQL)
611          fi
612       fi
613    fi
614
615    CPPFLAGS="$save_CPPFLAGS"
616 fi
617
618 # if have_mysql_libs=yes then go ahead with building MySQL
619 if test "$have_mysql_libs" = yes ; then
620    # this AC_MSG_RESULT is from above!
621    AC_MSG_RESULT(yes)
622    WANT_SUBDIRS="$WANT_SUBDIRS shib-mysql-ccache"
623    AC_SUBST(MYSQL_CFLAGS)
624    AC_SUBST(MYSQL_LIBS)
625 fi
626
627
628 AC_SUBST(WANT_SUBDIRS)
629
630 if test -n "$APXS_CC" && test "$APXS_CC" != "$CC" ; then
631   echo "=================================================================="
632   echo "WARNING: You have chosen to compile Apache-1.3 modules with a different"
633   echo "         compiler than the one used to compile Apache."
634   echo ""
635   echo "    Current compiler:      $CC"
636   echo "   Apache's compiler:      $APXS_CC"
637   echo ""
638   echo "This could cause some problems."
639   echo "=================================================================="
640 fi
641
642 if test -n "$APXS2_CC" && test "$APXS2_CC" != "$CC" ; then
643   echo "=================================================================="
644   echo "WARNING: You have chosen to compile Apache-2 modules with a different"
645   echo "         compiler than the one used to compile Apache."
646   echo ""
647   echo "    Current compiler:      $CC"
648   echo "   Apache's compiler:      $APXS2_CC"
649   echo ""
650   echo "This could cause some problems."
651   echo "=================================================================="
652 fi
653
654 AC_OUTPUT
655