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1 dnl
2 dnl Autoconf configuration for Apache httpd
3 dnl
4 dnl     Use ./buildconf to produce a configure script
5 dnl
6
7 AC_PREREQ(2.50)
8 AC_INIT(ABOUT_APACHE)
9
10 AC_CONFIG_HEADER(include/ap_config_auto.h)
11 AC_CONFIG_AUX_DIR(build)
12
13 dnl #
14 dnl # Include our own M4 macros along with those for APR and libtool
15 dnl #
16 sinclude(build/apr_common.m4)
17 sinclude(build/find_apr.m4)
18 sinclude(build/find_apu.m4)
19 sinclude(build/find_ldap.m4)
20 sinclude(acinclude.m4)
21
22 dnl Later versions of autoconf (>= 2.62) by default cause the produced
23 dnl configure script to emit at least warnings when it comes across unknown
24 dnl command line options. These versions also have the macro
25 dnl AC_DISABLE_OPTION_CHECKING defined which turns this off by default.
26 dnl We want to have this turned off here since our configure calls can
27 dnl contain options for APR / APR-UTIL configure that are unknown to us.
28 dnl So avoid confusing the user by turning this off. See also PR 45221.
29 ifdef([AC_DISABLE_OPTION_CHECKING], [AC_DISABLE_OPTION_CHECKING])
30
31 dnl XXX we can't just use AC_PREFIX_DEFAULT because that isn't subbed in
32 dnl by configure until it is too late.  Is that how it should be or not?
33 dnl Something seems broken here.                                               
34 AC_PREFIX_DEFAULT(/usr/local/apache2)
35
36 dnl Get the layout here, so we can pass the required variables to apr
37 APR_ENABLE_LAYOUT(Apache, [errordir iconsdir htdocsdir cgidir])
38
39 dnl reparse the configure arguments.
40 APR_PARSE_ARGUMENTS
41
42 dnl export expanded and relative configure argument variables
43 APACHE_EXPORT_ARGUMENTS
44
45 dnl Save user-defined environment settings for later restoration
46 dnl
47 APR_SAVE_THE_ENVIRONMENT(CPPFLAGS)
48 APR_SAVE_THE_ENVIRONMENT(CFLAGS)
49 APR_SAVE_THE_ENVIRONMENT(CXXFLAGS)
50 APR_SAVE_THE_ENVIRONMENT(LDFLAGS)
51 APR_SAVE_THE_ENVIRONMENT(LIBS)
52 APR_SAVE_THE_ENVIRONMENT(INCLUDES)
53
54 dnl Generate ./config.nice for reproducing runs of configure
55 dnl
56 APR_CONFIG_NICE(config.nice)
57
58 nl='
59 '
60 dnl Check that mkdir -p works
61 APR_MKDIR_P_CHECK($top_srcdir/build/mkdir.sh)
62
63 dnl ## Run configure for packages Apache uses
64
65 dnl shared library support for these packages doesn't currently
66 dnl work on some platforms
67
68 AC_CANONICAL_SYSTEM
69
70 orig_prefix="$prefix"
71
72 echo $ac_n "${nl}Configuring Apache Portable Runtime library ...${nl}"
73
74 AC_ARG_WITH(included-apr,
75 APACHE_HELP_STRING(--with-included-apr,Use bundled copies of APR/APR-Util))
76
77 if test "x$with_included_apr" = "xyes"; then
78    apr_found=reconfig
79 else 
80    APR_FIND_APR("$srcdir/srclib/apr", "./srclib/apr", 1, 1 2)
81 fi
82
83 if test "$apr_found" = "no"; then
84   AC_MSG_ERROR([APR not found.  Please read the documentation.])
85 fi
86
87 if test "$apr_found" = "reconfig"; then
88   APR_SUBDIR_CONFIG(srclib/apr,
89                     [$apache_apr_flags --prefix=$prefix --exec-prefix=$exec_prefix --libdir=$libdir --includedir=$includedir --bindir=$bindir --datadir=$datadir --with-installbuilddir=$installbuilddir],
90                     [--enable-layout=*|\'--enable-layout=*])
91   dnl We must be the first to build and the last to be cleaned
92   AP_BUILD_SRCLIB_DIRS="apr $AP_BUILD_SRCLIB_DIRS"
93   AP_CLEAN_SRCLIB_DIRS="$AP_CLEAN_SRCLIB_DIRS apr"
94
95   dnl We have to find apr-N-config when we reconfigure APR.
96   for majorver in 1 2; do
97     test_apr_config="./srclib/apr/apr-${majorver}-config"
98     if test -f "$test_apr_config"; then
99       apr_config="$test_apr_config"
100     fi
101   done
102 fi
103
104 APR_SETIFNULL(CC, `$apr_config --cc`)
105 APR_SETIFNULL(CPP, `$apr_config --cpp`)
106 APR_ADDTO(CFLAGS, `$apr_config --cflags`)
107 APR_ADDTO(CPPFLAGS, `$apr_config --cppflags`)
108 dnl internal-only CPPFLAGS (shouldn't affect third-party module builds)
109 INTERNAL_CPPFLAGS=""
110 APR_ADDTO(LDFLAGS, `$apr_config --ldflags`)
111 SHLIBPATH_VAR=`$apr_config --shlib-path-var`
112 APR_BINDIR=`$apr_config --bindir`
113 APR_INCLUDEDIR=`$apr_config --includedir`
114 APR_INCLUDES=`$apr_config --includes`
115 APR_VERSION=`$apr_config --version`
116 apr_major_version=`echo ${APR_VERSION} | sed 's,\..*,,'`
117 APR_CONFIG="$APR_BINDIR/apr-${apr_major_version}-config"
118
119 echo $ac_n "${nl}Configuring Apache Portable Runtime Utility library...${nl}"
120
121 if test "x${apr_major_version}" = "x2"; then
122    apu_found=obsolete
123 elif test "x$with_included_apr" = "xyes"; then
124    apu_found=reconfig
125 else 
126    dnl If httpd is buildconf'ed against an apr 2.x tree, then 1.x
127    dnl isn't supported. 
128    ifdef([APR_FIND_APU], [
129      APR_FIND_APU("$srcdir/srclib/apr-util", "./srclib/apr-util", 
130                   1, ${apr_major_version})
131    ], [apu_found=no])
132 fi
133
134 if test "$apu_found" = "no"; then
135   AC_MSG_ERROR([APR-util not found.  Please read the documentation.])
136 fi
137
138 # Catch some misconfigurations:
139 case ${apr_found}.${apu_found} in
140 reconfig.yes)
141   AC_MSG_ERROR([Cannot use an external APR-util with the bundled APR])
142   ;;
143 yes.reconfig)
144   AC_MSG_ERROR([Cannot use an external APR with the bundled APR-util])
145   ;;
146 esac  
147
148 if test "$apu_found" = "reconfig"; then
149   APR_SUBDIR_CONFIG(srclib/apr-util,
150                     [--with-apr=../apr --prefix=$prefix --exec-prefix=$exec_prefix --libdir=$libdir --includedir=$includedir --bindir=$bindir],
151                     [--enable-layout=*|\'--enable-layout=*])
152   dnl We must be the last to build and the first to be cleaned
153   AP_BUILD_SRCLIB_DIRS="$AP_BUILD_SRCLIB_DIRS apr-util"
154   AP_CLEAN_SRCLIB_DIRS="apr-util $AP_CLEAN_SRCLIB_DIRS"
155   dnl APR and APR-Util major versions must match
156   apu_config="./srclib/apr-util/apu-${apr_major_version}-config"
157 fi
158
159 if test "$apu_found" = "obsolete"; then
160   AC_MSG_NOTICE([APR-util obsoleted, woohoo])
161 else
162   APR_ADDTO(LDFLAGS, `$apu_config --ldflags`)
163   APU_BINDIR=`$apu_config --bindir`
164   APU_INCLUDEDIR=`$apu_config --includedir`
165   APU_INCLUDES=`$apu_config --includes`
166   APU_VERSION=`$apu_config --version`
167   APU_CONFIG="$APU_BINDIR/apu-`echo ${APU_VERSION} | sed 's,\..*,,'`-config"
168 fi
169
170 dnl In case we picked up CC and CPP from APR, get that info into the
171 dnl config cache so that PCRE uses it.  Otherwise, CC and CPP used for
172 dnl PCRE and for our config tests will be whatever PCRE determines.
173 AC_PROG_CC
174 AC_PROG_CPP
175
176 dnl Try to get c99 support for variadic macros
177 ifdef([AC_PROG_CC_C99], [AC_PROG_CC_C99])
178
179 if test "x${cache_file}" = "x/dev/null"; then
180   # Likewise, ensure that CC and CPP are passed through to the pcre
181   # configure script iff caching is disabled (the autoconf 2.5x default).
182   export CC; export CPP
183 fi
184
185 dnl Absolute source/build directory
186 abs_srcdir=`(cd $srcdir && pwd)`
187 abs_builddir=`pwd`
188
189 AC_ARG_WITH(pcre,
190 APACHE_HELP_STRING(--with-pcre=PATH,Use external PCRE library))
191
192 AC_PATH_PROG(PCRE_CONFIG, pcre-config, false)
193 if test -d "$with_pcre" && test -x "$with_pcre/bin/pcre-config"; then
194    PCRE_CONFIG=$with_pcre/bin/pcre-config
195 elif test -x "$with_pcre"; then
196    PCRE_CONFIG=$with_pcre
197 fi
198
199 if test "$PCRE_CONFIG" != "false"; then
200   if $PCRE_CONFIG --version >/dev/null 2>&1; then :; else
201     AC_MSG_ERROR([Did not find pcre-config script at $PCRE_CONFIG])
202   fi
203   AC_MSG_NOTICE([Using external PCRE library from $PCRE_CONFIG])
204   APR_ADDTO(PCRE_INCLUDES, [`$PCRE_CONFIG --cflags`])
205   APR_ADDTO(PCRE_LIBS, [`$PCRE_CONFIG --libs`])
206 else
207   AC_MSG_ERROR([pcre-config for libpcre not found. PCRE is required and available from http://pcre.org/])
208 fi
209 APACHE_SUBST(PCRE_LIBS)
210 APR_ADDTO(AP_LIBS, [\$(PCRE_LIBS)])
211
212 echo $ac_n "${nl}Configuring Apache httpd ...${nl}"
213
214 dnl If the source dir is not equal to the build dir, 
215 dnl then we are running in VPATH mode.
216
217 APR_ADDTO(INCLUDES, [-I.])
218
219 if test "$abs_builddir" != "$abs_srcdir"; then
220   APR_ADDTO(INCLUDES, [-I\$(top_builddir)/include])
221 fi
222
223 APR_ADDTO(INCLUDES, [-I\$(top_srcdir)/os/\$(OS_DIR) -I\$(top_srcdir)/include])
224
225 # apr/apr-util --includes may pick up system paths for dependent
226 # libraries, so ensure these are later in INCLUDES than local source
227 # directories.
228 APR_ADDTO(INCLUDES, $APR_INCLUDES)
229 APR_ADDTO(INCLUDES, $APU_INCLUDES)
230
231 dnl Add in path to PCRE includes
232 APR_ADDTO(INCLUDES, $PCRE_INCLUDES)
233
234 echo $ac_n "${nl}Applying OS-specific hints for httpd ...${nl}"
235
236 case $host in
237   *os2*)
238       # Use a custom made libtool replacement
239       echo "using aplibtool"
240       LIBTOOL="$abs_srcdir/srclib/apr/build/aplibtool"
241       SH_LIBTOOL="$LIBTOOL --shared --export-all"
242       SH_LIBS="\$(ALL_LIBS)"
243       CORE_IMPLIB_FILE="ApacheCoreOS2.la"
244       CORE_IMPLIB="$abs_srcdir/server/$CORE_IMPLIB_FILE"
245       MK_IMPLIB="emximp"
246       other_targets="$other_targets os2core"
247       INSTALL_PROG_FLAGS="-e .exe"
248       SHLTCFLAGS=""
249       LTCFLAGS=""
250       ;;
251   *)
252       if test "x$LTFLAGS" = "x"; then
253           LTFLAGS='--silent'
254       fi
255       my_libtool=`$apr_config --apr-libtool`
256       LIBTOOL="$my_libtool \$(LTFLAGS)"
257       libtoolversion=`$my_libtool --version`
258       case $libtoolversion in
259           *1.[[45]]* | *[[2-9]].[[0-9]]*)
260               SH_LIBTOOL='$(LIBTOOL)'
261               SHLTCFLAGS="-prefer-pic"
262               LTCFLAGS="-prefer-non-pic -static"
263               ;;
264           *)
265               SH_LIBTOOL='$(SHELL) $(top_builddir)/shlibtool $(LTFLAGS)'
266               SHLTCFLAGS=""
267               LTCFLAGS=""
268               ;;
269       esac
270       ;;
271 esac
272 APACHE_SUBST(SHLTCFLAGS)
273 APACHE_SUBST(LTCFLAGS)
274
275 case $host in
276   *-apple-aux3*)
277       APR_SETVAR(SINGLE_LISTEN_UNSERIALIZED_ACCEPT, [1])
278       ;;
279   *os2-emx*)
280       APR_SETVAR(SINGLE_LISTEN_UNSERIALIZED_ACCEPT, [1])
281       ;;
282   *-linux-*)
283       case `uname -r` in
284         2.[[2-9]]* ) 
285             APR_SETVAR(SINGLE_LISTEN_UNSERIALIZED_ACCEPT, [1])
286             ;;
287         * )
288             ;;
289       esac
290       ;;
291   *486-*-bsdi* | *-netbsd* | *-freebsd* | *-apple-darwin* | *-dec-osf* | *-qnx)
292       APR_SETVAR(SINGLE_LISTEN_UNSERIALIZED_ACCEPT, [1])
293       ;;
294   *-solaris2*)
295       dnl This is a hack -- we should be using AC_TRY_RUN instead
296       ap_platform_runtime_link_flag="-R"
297       dnl solaris 8 and above don't have a thundering herd
298       dnl not sure about rev's before this one.
299       case `uname -r` in
300         5.[567]*)
301             ;;
302         * )
303             APR_SETVAR(SINGLE_LISTEN_UNSERIALIZED_ACCEPT, [1])
304             ;;
305       esac
306       ;;
307   *cygwin*)
308       APR_SETVAR(SINGLE_LISTEN_UNSERIALIZED_ACCEPT, [1])
309       ;;
310   *mingw32*)
311       APR_ADDTO(INTERNAL_CPPFLAGS, [-DAP_DECLARE_EXPORT])
312       APR_SETIFNULL(ac_cv_func_times, [no])
313       APR_SETIFNULL(ac_cv_func_getpwnam, [no])
314       APR_SETIFNULL(ac_cv_func_getgrnam, [no])
315       ;;
316   *aix*)
317       aixver=`echo $host | sed 's/^[[^0-9]]*//' | sed 's/\.//g'`
318       if test $aixver -ge 4320; then
319         APR_SETVAR(SINGLE_LISTEN_UNSERIALIZED_ACCEPT, [1])
320       fi
321       ;;
322   *os390*)
323       APR_SETVAR(SINGLE_LISTEN_UNSERIALIZED_ACCEPT, [1])
324       ;;
325 esac
326
327 APR_SETVAR(AP_NONBLOCK_WHEN_MULTI_LISTEN, [1])
328
329 dnl
330 dnl Process command line arguments. This is done early in the process so the
331 dnl user can get feedback quickly in case of an error.
332 dnl
333 dnl ### need to move some of the arguments "up here"
334
335 dnl ## Check for programs
336
337 AC_PATH_PROG(RM, rm)
338 AC_PATH_PROG(PKGCONFIG, pkg-config)
339 AC_PATH_PROG(RSYNC, rsync)
340 AC_PROG_AWK
341 AC_PROG_LN_S
342 AC_CHECK_TOOL(RANLIB, ranlib, true)
343 dnl AC_PATH_PROG(PERL_PATH, perl)
344 AC_CHECK_PROGS(LYNX_PATH,[lynx links elinks], [lynx])
345
346 # Hard-coded install programs
347 MKINSTALLDIRS="\$(abs_srcdir)/build/mkdir.sh"
348 INSTALL="\$(LIBTOOL) --mode=install \$(abs_srcdir)/build/install.sh -c"
349 APACHE_SUBST(MKINSTALLDIRS)
350 APACHE_SUBST(INSTALL)
351
352 dnl Various OS checks that apparently set required flags
353 ifdef([AC_USE_SYSTEM_EXTENSIONS], [
354 AC_USE_SYSTEM_EXTENSIONS
355 ], [
356 AC_AIX
357 AC_MINIX
358 ])
359
360 AC_ISC_POSIX
361
362 # Ensure that satisfactory versions of apr and apr-util are 
363 # found if external copies are configured.
364 if test "${apr_found}" = "yes"; then
365   # Require at least APR 1.3.x otherwise fail
366   APACHE_CHECK_APxVER([apr], 1, 3)
367 fi
368
369 if test "${apu_found}" = "yes"; then
370   # Require at least APR-util 1.3.x otherwise fail
371   if test "${apr_found}" = "yes"; then
372     # we need to add the APR includes to CPPFLAGS
373     apu_ckver_CPPFLAGS="$CPPFLAGS"
374     CPPFLAGS="$CPPFLAGS `$apr_config --includes`"
375     APACHE_CHECK_APxVER([apu], 1, 3)
376     CPPFLAGS="$apu_ckver_CPPFLAGS"
377   else
378     APACHE_CHECK_APxVER([apu], 1, 3)
379   fi
380 fi
381
382 dnl Check for what we can generate dependency files with
383 APR_CHECK_DEPEND
384
385 dnl ## Check for libraries
386
387 dnl ## Check for header files
388
389 dnl I think these are just used all over the place, so just check for
390 dnl them at the base of the tree. If some are specific to a single
391 dnl directory, they should be moved (Comment #Spoon)
392
393 dnl Regarding standard header files: AC_HEADER_STDC doesn't set symbols
394 dnl HAVE_STRING_H, HAVE_STDLIB_H, etc., so those are checked for
395 dnl explicitly so that the normal HAVE_xxx_H symbol is defined.
396
397 AC_HEADER_STDC
398 AC_CHECK_HEADERS( \
399 string.h \
400 limits.h \
401 unistd.h \
402 sys/socket.h \
403 pwd.h \
404 grp.h \
405 strings.h \
406 sys/prctl.h \
407 sys/processor.h \
408 sys/sem.h \
409 sys/sdt.h
410 )
411 AC_HEADER_SYS_WAIT
412
413 dnl ## Check for typedefs, structures, and compiler characteristics.
414
415 AC_C_CONST
416
417 dnl ## Check for library functions
418 dnl ## sqrt() only needed in support/ab.c
419 saved_LIBS="$LIBS"
420 LIBS=""
421 AC_SEARCH_LIBS(sqrt, m)
422 MATH_LIBS="$LIBS"
423 APACHE_SUBST(MATH_LIBS)
424 LIBS="$saved_LIBS"
425
426 saved_LIBS="$LIBS"
427 LIBS=""
428 AC_SEARCH_LIBS(crypt, crypt)
429 CRYPT_LIBS="$LIBS"
430 APACHE_SUBST(CRYPT_LIBS)
431 LIBS="$saved_LIBS"
432
433 dnl See Comment #Spoon
434
435 AC_CHECK_FUNCS( \
436 getpwnam \
437 getgrnam \
438 initgroups \
439 bindprocessor \
440 prctl \
441 timegm \
442 getpgid \
443 fopen64
444 )
445
446 dnl confirm that a void pointer is large enough to store a long integer
447 APACHE_CHECK_VOID_PTR_LEN
448
449 dnl ## Check for the tm_gmtoff field in struct tm to get the timezone diffs
450 AC_CACHE_CHECK([for tm_gmtoff in struct tm], ac_cv_struct_tm_gmtoff,
451 [AC_TRY_COMPILE([#include <sys/types.h>
452 #include <time.h>], [struct tm tm; tm.tm_gmtoff;],
453   ac_cv_struct_tm_gmtoff=yes, ac_cv_struct_tm_gmtoff=no)])
454 if test "$ac_cv_struct_tm_gmtoff" = "yes"; then
455     AC_DEFINE(HAVE_GMTOFF, 1, [Define if struct tm has a tm_gmtoff field])
456 fi
457
458 dnl ## Set up any appropriate OS-specific environment variables for apachectl
459
460 case $host in
461     *aix*)
462         # for 32-bit builds, increase MAXDATA to allow lots of threads
463         if test x$OBJECT_MODE != x64; then
464             OS_SPECIFIC_VARS="LDR_CNTRL=\"MAXDATA=0x80000000\" ; export LDR_CNTRL ;"
465         fi
466         OS_SPECIFIC_VARS="$OS_SPECIFIC_VARS AIXTHREAD_SCOPE=S ; export AIXTHREAD_SCOPE"
467         OS_SPECIFIC_VARS="$OS_SPECIFIC_VARS ; AIXTHREAD_MUTEX_DEBUG=OFF ; export AIXTHREAD_MUTEX_DEBUG"
468         OS_SPECIFIC_VARS="$OS_SPECIFIC_VARS ; AIXTHREAD_RWLOCK_DEBUG=OFF ; export AIXTHREAD_RWLOCK_DEBUG"
469         OS_SPECIFIC_VARS="$OS_SPECIFIC_VARS ; AIXTHREAD_COND_DEBUG=OFF ; export AIXTHREAD_COND_DEBUG"
470         OS_SPECIFIC_VARS="$OS_SPECIFIC_VARS ; SPINLOOPTIME=1000 ; export SPINLOOPTIME"
471         OS_SPECIFIC_VARS="$OS_SPECIFIC_VARS ; YIELDLOOPTIME=8 ; export YIELDLOOPTIME"
472         OS_SPECIFIC_VARS="$OS_SPECIFIC_VARS ; MALLOCMULTIHEAP=considersize,heaps:8 ; export MALLOCMULTIHEAP"
473         ;;
474     *os390*)
475         OS_SPECIFIC_VARS="export _CEE_RUNOPTS=\"STACK(,,ANY)\" ; export _EDC_ADD_ERRNO2=1"
476         ;;
477     *)
478         OS_SPECIFIC_VARS=""
479 esac
480       
481 AC_ARG_WITH(port,APACHE_HELP_STRING(--with-port=PORT,Port on which to listen (default is 80)),
482         [if test "$withval" = "yes"; then AC_MSG_ERROR('option --with-port requires a value (the TCP port number)'); else PORT="$withval"; fi],
483         [PORT=80])
484
485 AC_ARG_WITH(sslport,APACHE_HELP_STRING(--with-sslport=SSLPORT,Port on which to securelisten (default is 443)),
486         [if test "$withval" = "yes"; then AC_MSG_ERROR('option --with-sslport requires a value (the SSL TCP port number)'); else SSLPORT="$withval"; fi],
487         [SSLPORT=443])
488
489 DTRACE=true
490 AC_ARG_ENABLE(dtrace,APACHE_HELP_STRING(--enable-dtrace,Enable DTrace probes),
491 [
492   enable_dtrace=$enableval
493   APR_ADDTO(CPPFLAGS, -DAPR_DTRACE_PROVIDER)
494   AC_MSG_ERROR('DTrace Support in the build system is not complete. Patches Welcome!')
495 ],
496 [
497   enable_dtrace=no
498 ])
499
500 dnl Disabled dtrace build for now.
501 enable_dtrace=no
502
503 case $host in
504   *-solaris2*)
505     if test $enable_dtrace = "yes" -a "$ac_cv_header_sys_sdt_h" = "yes"; then
506         AC_DEFINE(AP_ENABLE_DTRACE, 1,
507                   [Enable DTrace probes])
508         DTRACE="/usr/sbin/dtrace $DTRACEFLAGS"
509         test -f include/apache_probes.h || $DTRACE -h -s apache_probes.d -o include/apache_probes.h
510     fi
511     ;;
512 esac
513
514 APACHE_SUBST(DTRACE)
515
516 AC_ARG_ENABLE(hook-probes,APACHE_HELP_STRING(--enable-hook-probes,Enable APR hook probes),
517 [
518     AC_DEFINE(AP_HOOK_PROBES_ENABLED, 1,
519         [Enable the APR hook probes capability, reading from ap_hook_probes.h])
520     APR_ADDTO(INTERNAL_CPPFLAGS, -DAP_HOOK_PROBES_ENABLED)
521 ])dnl
522
523 AC_ARG_ENABLE(exception-hook,APACHE_HELP_STRING(--enable-exception-hook,Enable fatal exception hook),
524 [
525     AC_DEFINE(AP_ENABLE_EXCEPTION_HOOK, 1,
526               [Allow modules to run hook after a fatal exception])
527 ])dnl
528
529 AC_ARG_ENABLE(maintainer-mode,APACHE_HELP_STRING(--enable-maintainer-mode,Turn on debugging and compile time warnings),
530 [
531   APR_ADDTO(CPPFLAGS, -DAP_DEBUG)
532   if test "$GCC" = "yes"; then
533     APR_ADDTO(CFLAGS,[-Wall -Wmissing-prototypes -Wstrict-prototypes -Wmissing-declarations -Wpointer-arith])
534     AC_CACHE_CHECK([whether gcc accepts -Wdeclaration-after-statement], [ap_cv_cc_Wdas], [
535       save_CFLAGS=$CFLAGS
536       CFLAGS="$CFLAGS -Wdeclaration-after-statement"
537       AC_COMPILE_IFELSE([AC_LANG_SOURCE([int foo() { return 0; }])],
538         [ap_cv_cc_Wdas=yes], [ap_cv_cc_Wdas=no])
539       CFLAGS=$save_CFLAGS
540     ])
541     if test "$ap_cv_cc_Wdas" = "yes"; then
542       APR_ADDTO(CFLAGS,[-Wdeclaration-after-statement])
543     fi
544   elif test "$AIX_XLC" = "yes"; then
545     APR_ADDTO(CFLAGS,-qfullpath -qinitauto=FE -qcheck=all -qinfo=pro)
546   fi
547 ])dnl
548
549 AC_ARG_ENABLE(debugger-mode,APACHE_HELP_STRING(--enable-debugger-mode,Turn on debugging and compile time warnings and turn off optimization),
550 [
551   APR_ADDTO(CPPFLAGS, -DAP_DEBUG)
552   if test "$GCC" = "yes"; then
553     APR_ADDTO(CFLAGS,[-Wall -Wmissing-prototypes -Wstrict-prototypes -Wmissing-declarations -Wpointer-arith -O0])
554     AC_CACHE_CHECK([whether gcc accepts -Wdeclaration-after-statement], [ap_cv_cc_Wdas], [
555       save_CFLAGS=$CFLAGS
556       CFLAGS="$CFLAGS -Wdeclaration-after-statement"
557       AC_COMPILE_IFELSE([AC_LANG_SOURCE([int foo() { return 0; }])],
558         [ap_cv_cc_Wdas=yes], [ap_cv_cc_Wdas=no])
559       CFLAGS=$save_CFLAGS
560     ])
561     if test "$ap_cv_cc_Wdas" = "yes"; then
562       APR_ADDTO(CFLAGS,[-Wdeclaration-after-statement])
563     fi
564   elif test "$AIX_XLC" = "yes"; then
565     APR_ADDTO(CFLAGS,-qfullpath -qinitauto=FE -qcheck=all -qinfo=pro)
566   fi
567 ])dnl
568
569 dnl Conditionally enable PIE support for GNU toolchains.
570 AC_ARG_ENABLE(pie,APACHE_HELP_STRING(--enable-pie,Build httpd as a Position Independent Executable))
571 if test "$enable_pie" = "yes"; then
572    AC_CACHE_CHECK([whether $CC accepts PIE flags], [ap_cv_cc_pie], [
573      save_CFLAGS=$CFLAGS
574      save_LDFLAGS=$LDFLAGS
575      CFLAGS="$CFLAGS -fPIE"
576      LDFLAGS="$LDFLAGS -pie"
577      AC_TRY_RUN([static int foo[30000]; int main () { return 0; }],
578       [ap_cv_cc_pie=yes], [ap_cv_cc_pie=no], [ap_cv_cc_pie=yes])
579      CFLAGS=$save_CFLAGS
580      LDFLAGS=$save_LDFLAGS
581    ])
582    if test "$ap_cv_cc_pie" = "yes"; then
583      PICFLAGS="-fPIE"
584      PILDFLAGS="-pie"
585    else
586      AC_ERROR([--enable-pie requested but $CC failed using PIE flags])
587    fi
588 fi
589 AC_SUBST(PICFLAGS)
590 AC_SUBST(PILDFLAGS)
591
592 prefix="$orig_prefix"
593 APACHE_ENABLE_MODULES
594
595 dnl reading config stubs
596 esyscmd(./build/config-stubs .)
597
598 APACHE_SUBST(progname)
599 APACHE_SUBST(OS)
600 APACHE_SUBST(OS_DIR)
601 APACHE_SUBST(BUILTIN_LIBS)
602 APACHE_SUBST(SHLIBPATH_VAR)
603 APACHE_SUBST(OS_SPECIFIC_VARS)
604
605 PRE_SHARED_CMDS='echo ""'
606 POST_SHARED_CMDS='echo ""'
607
608 dnl apache_need_shared tells us if Apache modules are being built as DSOs
609
610 if test "$apache_need_shared" = "yes"; then
611   if test -f $ac_aux_dir/ltconfig; then
612     $SHELL $ac_aux_dir/ltconfig --output=shlibtool --disable-static --srcdir=$ac_aux_dir --cache-file=./config.cache $ac_aux_dir/ltmain.sh
613   fi
614   shared_build="shared-build"
615 fi
616
617 dnl enable_so tells us if *any* modules can be built as DSOs
618
619 if test "$enable_so" = "yes" -o "$enable_so" = "static"; then
620   case $host in
621     *-ibm-aix*)
622       APR_ADDTO(HTTPD_LDFLAGS, [-Wl,-uXML_Parse -Wl,-bE:$abs_builddir/server/httpd.exp])
623       APR_ADDTO(SH_LDFLAGS, [\$(EXTRA_LDFLAGS) \$(EXTRA_LIBS)])
624       APR_ADDTO(UTIL_LDFLAGS, [-Wl,-uXML_Parse])
625       ;;
626     *os390)
627       APR_ADDTO(HTTPD_LDFLAGS, [--main=$abs_srcdir/server/main.o --core-dll=$abs_srcdir/apachecore.dll])
628       APR_ADDTO(SH_LDFLAGS, [--core-dll=$abs_srcdir/apachecore.dll])
629   esac
630   MOD_SO_ENABLED=yes
631 fi
632 AC_SUBST(MOD_SO_ENABLED)
633
634 APACHE_SUBST(PRE_SHARED_CMDS)
635 APACHE_SUBST(POST_SHARED_CMDS)
636 APACHE_SUBST(shared_build)
637
638 AC_ARG_WITH(program-name,
639 APACHE_HELP_STRING(--with-program-name,alternate executable name),[
640   progname="$withval" ], [
641   progname="httpd"] )
642
643 # SuExec parameters
644 AC_ARG_WITH(suexec-bin,
645 APACHE_HELP_STRING(--with-suexec-bin,Path to suexec binary),[
646   AC_DEFINE_UNQUOTED(SUEXEC_BIN, "$withval", [Path to suexec binary] )
647 ] )
648
649 AC_ARG_WITH(suexec-caller,
650 APACHE_HELP_STRING(--with-suexec-caller,User allowed to call SuExec),[
651   AC_DEFINE_UNQUOTED(AP_HTTPD_USER, "$withval", [User allowed to call SuExec] ) ] )
652
653 AC_ARG_WITH(suexec-userdir,
654 APACHE_HELP_STRING(--with-suexec-userdir,User subdirectory),[
655   AC_DEFINE_UNQUOTED(AP_USERDIR_SUFFIX, "$withval", [User subdirectory] ) ] )
656
657 AC_ARG_WITH(suexec-docroot,
658 APACHE_HELP_STRING(--with-suexec-docroot,SuExec root directory),[
659   AC_DEFINE_UNQUOTED(AP_DOC_ROOT, "$withval", [SuExec root directory] ) ] )
660
661 AC_ARG_WITH(suexec-uidmin,
662 APACHE_HELP_STRING(--with-suexec-uidmin,Minimal allowed UID),[
663   AC_DEFINE_UNQUOTED(AP_UID_MIN, $withval, [Minimum allowed UID] ) ] )
664
665 AC_ARG_WITH(suexec-gidmin,
666 APACHE_HELP_STRING(--with-suexec-gidmin,Minimal allowed GID),[
667   AC_DEFINE_UNQUOTED(AP_GID_MIN, $withval, [Minimum allowed GID] ) ] )
668
669 AC_ARG_WITH(suexec-logfile,
670 APACHE_HELP_STRING(--with-suexec-logfile,Set the logfile),[
671   AC_DEFINE_UNQUOTED(AP_LOG_EXEC, "$withval", [SuExec log file] ) ] )
672
673 AC_ARG_WITH(suexec-safepath,
674 APACHE_HELP_STRING(--with-suexec-safepath,Set the safepath),[
675   AC_DEFINE_UNQUOTED(AP_SAFE_PATH, "$withval", [safe shell path for SuExec] ) ] )
676
677 AC_ARG_WITH(suexec-umask,
678 APACHE_HELP_STRING(--with-suexec-umask,umask for suexec'd process),[
679   AC_DEFINE_UNQUOTED(AP_SUEXEC_UMASK, 0$withval, [umask for suexec'd process] ) ] )
680
681 dnl APR should go after the other libs, so the right symbols can be picked up
682 if test x${apu_found} != xobsolete; then
683   AP_LIBS="$AP_LIBS `$apu_config --avoid-ldap --link-libtool --libs`"
684 fi
685 AP_LIBS="$AP_LIBS `$apr_config --link-libtool --libs`" 
686 APACHE_SUBST(AP_LIBS)
687 APACHE_SUBST(AP_BUILD_SRCLIB_DIRS)
688 APACHE_SUBST(AP_CLEAN_SRCLIB_DIRS)
689
690 AC_DEFINE(AP_USING_AUTOCONF, 1,
691                 [Using autoconf to configure Apache])
692
693 if test "$SINGLE_LISTEN_UNSERIALIZED_ACCEPT" = "1"; then
694     AC_DEFINE(SINGLE_LISTEN_UNSERIALIZED_ACCEPT, 1, 
695               [This platform doesn't suffer from the thundering herd problem])
696 fi
697
698 if test "$AP_NONBLOCK_WHEN_MULTI_LISTEN" = "1"; then
699     AC_DEFINE(AP_NONBLOCK_WHEN_MULTI_LISTEN, 1, 
700               [Listening sockets are non-blocking when there are more than 1])
701 fi
702
703 APR_CHECK_APR_DEFINE(APR_HAVE_IPV6)
704
705 AC_ARG_ENABLE(v4-mapped,APACHE_HELP_STRING(--enable-v4-mapped,Allow IPv6 sockets to handle IPv4 connections),
706
707   v4mapped=$enableval
708 ],
709 [
710     case $host in
711     *freebsd5*|*netbsd*|*openbsd*)
712         v4mapped=no
713         ;;
714     *)
715         v4mapped=yes
716         ;;
717     esac
718     if ap_mpm_is_enabled winnt; then
719         dnl WinNT MPM doesn't support this.
720         v4mapped=no
721     fi
722 ])
723
724 if test $v4mapped = "yes" -a $ac_cv_define_APR_HAVE_IPV6 = "yes"; then
725     AC_DEFINE(AP_ENABLE_V4_MAPPED, 1,
726               [Allow IPv4 connections on IPv6 listening sockets])
727 fi
728
729 APACHE_FAST_OUTPUT(Makefile modules/Makefile srclib/Makefile) 
730 APACHE_FAST_OUTPUT(os/Makefile server/Makefile)
731 APACHE_FAST_OUTPUT(support/Makefile)
732
733 if test -d ./test; then
734     APACHE_FAST_OUTPUT(test/Makefile)
735 fi
736
737 dnl ## Finalize the variables
738 echo $ac_n "${nl}Restore user-defined environment settings...${nl}"
739
740 APR_RESTORE_THE_ENVIRONMENT(CPPFLAGS, EXTRA_)
741 APR_RESTORE_THE_ENVIRONMENT(CFLAGS, EXTRA_)
742 APR_RESTORE_THE_ENVIRONMENT(CXXFLAGS, EXTRA_)
743 APR_RESTORE_THE_ENVIRONMENT(LDFLAGS, EXTRA_)
744 APR_RESTORE_THE_ENVIRONMENT(LIBS, EXTRA_)
745 APR_RESTORE_THE_ENVIRONMENT(INCLUDES, EXTRA_)
746
747 echo $ac_n "${nl}Construct makefiles and header files...${nl}"
748
749 APACHE_GEN_CONFIG_VARS
750
751 dnl ## Build modules.c
752 rm -f modules.c
753 echo $MODLIST | $AWK -f $srcdir/build/build-modules-c.awk > modules.c
754
755 APR_EXPAND_VAR(ap_prefix, $prefix)
756 AC_DEFINE_UNQUOTED(HTTPD_ROOT, "${ap_prefix}",
757         [Root directory of the Apache install area])
758 AC_DEFINE_UNQUOTED(SERVER_CONFIG_FILE, "${rel_sysconfdir}/${progname}.conf",
759         [Location of the config file, relative to the Apache root directory])
760 AC_DEFINE_UNQUOTED(AP_TYPES_CONFIG_FILE, "${rel_sysconfdir}/mime.types",
761         [Location of the MIME types config file, relative to the Apache root directory])
762
763 perlbin=`$ac_aux_dir/PrintPath perl`
764 if test "x$perlbin" = "x"; then
765     perlbin="/replace/with/path/to/perl/interpreter"
766 fi
767 AC_SUBST(perlbin)
768
769 dnl If we are running on BSD/OS, we need to use the BSD .include syntax.
770
771 BSD_MAKEFILE=no
772 ap_make_include=include
773 ap_make_delimiter=' '
774 case $host in
775 *bsdi*)
776     # Check whether they've installed GNU make
777     if make --version > /dev/null 2>&1; then
778         true
779     else
780         BSD_MAKEFILE=yes
781         ap_make_include=.include
782         ap_make_delimiter='"'
783     fi
784     ;;
785 esac
786 AC_SUBST(ap_make_include)
787 AC_SUBST(ap_make_delimiter)
788
789 dnl Ensure that docs/conf is created.
790 test -d docs/conf||$mkdir_p docs/conf
791
792 dnl Ensure that the httpd version is included
793 HTTPD_VERSION=`$abs_srcdir/build/get-version.sh all $abs_srcdir/include/ap_release.h AP_SERVER`
794 AC_SUBST(HTTPD_VERSION)
795
796 AC_OUTPUT($APACHE_OUTPUT_FILES docs/conf/httpd.conf docs/conf/extra/httpd-autoindex.conf docs/conf/extra/httpd-dav.conf docs/conf/extra/httpd-default.conf docs/conf/extra/httpd-info.conf docs/conf/extra/httpd-languages.conf docs/conf/extra/httpd-manual.conf docs/conf/extra/httpd-mpm.conf docs/conf/extra/httpd-multilang-errordoc.conf docs/conf/extra/httpd-ssl.conf docs/conf/extra/httpd-userdir.conf docs/conf/extra/httpd-vhosts.conf include/ap_config_layout.h support/apxs support/apachectl support/dbmmanage support/envvars-std support/log_server_status support/logresolve.pl support/phf_abuse_log.cgi support/split-logfile build/rules.mk build/pkg/pkginfo build/config_vars.sh,[true],[
797   APACHE_GEN_MAKEFILES
798 ])