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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(acinclude.m4)
20
21 dnl Later versions of autoconf (>= 2.62) by default cause the produced
22 dnl configure script to emit at least warnings when it comes across unknown
23 dnl command line options. These versions also have the macro
24 dnl AC_DISABLE_OPTION_CHECKING defined which turns this off by default.
25 dnl We want to have this turned off here since our configure calls can
26 dnl contain options for APR / APR-UTIL configure that are unknown to us.
27 dnl So avoid confusing the user by turning this off. See also PR 45221.
28 ifdef([AC_DISABLE_OPTION_CHECKING], [AC_DISABLE_OPTION_CHECKING])
29
30 dnl XXX we can't just use AC_PREFIX_DEFAULT because that isn't subbed in
31 dnl by configure until it is too late.  Is that how it should be or not?
32 dnl Something seems broken here.                                               
33 AC_PREFIX_DEFAULT(/usr/local/apache2)
34
35 dnl Get the layout here, so we can pass the required variables to apr
36 APR_ENABLE_LAYOUT(Apache, [errordir iconsdir htdocsdir cgidir])
37
38 dnl reparse the configure arguments.
39 APR_PARSE_ARGUMENTS
40
41 dnl export expanded and relative configure argument variables
42 APACHE_EXPORT_ARGUMENTS
43
44 dnl Save user-defined environment settings for later restoration
45 dnl
46 APR_SAVE_THE_ENVIRONMENT(CPPFLAGS)
47 APR_SAVE_THE_ENVIRONMENT(CFLAGS)
48 APR_SAVE_THE_ENVIRONMENT(CXXFLAGS)
49 APR_SAVE_THE_ENVIRONMENT(LDFLAGS)
50 APR_SAVE_THE_ENVIRONMENT(LIBS)
51 APR_SAVE_THE_ENVIRONMENT(INCLUDES)
52
53 dnl Generate ./config.nice for reproducing runs of configure
54 dnl
55 APR_CONFIG_NICE(config.nice)
56
57 nl='
58 '
59 dnl Check that mkdir -p works
60 APR_MKDIR_P_CHECK($top_srcdir/build/mkdir.sh)
61
62 dnl ## Run configure for packages Apache uses
63
64 dnl shared library support for these packages doesn't currently
65 dnl work on some platforms
66
67 AC_CANONICAL_SYSTEM
68
69 orig_prefix="$prefix"
70
71 echo $ac_n "${nl}Configuring Apache Portable Runtime library ...${nl}"
72
73 AC_ARG_WITH(included-apr,
74 APACHE_HELP_STRING(--with-included-apr,Use bundled copies of APR/APR-Util))
75
76 if test "x$with_included_apr" = "xyes"; then
77    apr_found=reconfig
78 else 
79    APR_FIND_APR("$srcdir/srclib/apr", "./srclib/apr", 1, 1 2)
80 fi
81
82 if test "$apr_found" = "no"; then
83   AC_MSG_ERROR([APR not found.  Please read the documentation.])
84 fi
85
86 if test "$apr_found" = "reconfig"; then
87   APR_SUBDIR_CONFIG(srclib/apr,
88                     [$apache_apr_flags --prefix=$prefix --exec-prefix=$exec_prefix --libdir=$libdir --includedir=$includedir --bindir=$bindir --datadir=$datadir --with-installbuilddir=$installbuilddir],
89                     [--enable-layout=*|\'--enable-layout=*])
90   dnl We must be the first to build and the last to be cleaned
91   AP_BUILD_SRCLIB_DIRS="apr $AP_BUILD_SRCLIB_DIRS"
92   AP_CLEAN_SRCLIB_DIRS="$AP_CLEAN_SRCLIB_DIRS apr"
93
94   dnl We have to find apr-N-config when we reconfigure APR.
95   for majorver in 1 2; do
96     test_apr_config="./srclib/apr/apr-${majorver}-config"
97     if test -f "$test_apr_config"; then
98       apr_config="$test_apr_config"
99     fi
100   done
101 fi
102
103 APR_SETIFNULL(CC, `$apr_config --cc`)
104 APR_SETIFNULL(CPP, `$apr_config --cpp`)
105 APR_ADDTO(CFLAGS, `$apr_config --cflags`)
106 APR_ADDTO(CPPFLAGS, `$apr_config --cppflags`)
107 dnl internal-only CPPFLAGS (shouldn't affect third-party module builds)
108 INTERNAL_CPPFLAGS=""
109 APR_ADDTO(LDFLAGS, `$apr_config --ldflags`)
110 SHLIBPATH_VAR=`$apr_config --shlib-path-var`
111 APR_BINDIR=`$apr_config --bindir`
112 APR_INCLUDEDIR=`$apr_config --includedir`
113 APR_INCLUDES=`$apr_config --includes`
114 APR_VERSION=`$apr_config --version`
115 apr_major_version=`echo ${APR_VERSION} | sed 's,\..*,,'`
116 APR_CONFIG="$APR_BINDIR/apr-${apr_major_version}-config"
117
118 echo $ac_n "${nl}Configuring Apache Portable Runtime Utility library...${nl}"
119
120 if test "x${apr_major_version}" = "x2"; then
121    apu_found=obsolete
122 elif test "x$with_included_apr" = "xyes"; then
123    apu_found=reconfig
124 else 
125    dnl If httpd is buildconf'ed against an apr 2.x tree, then 1.x
126    dnl isn't supported. 
127    ifdef([APR_FIND_APU], [
128      APR_FIND_APU("$srcdir/srclib/apr-util", "./srclib/apr-util", 
129                   1, ${apr_major_version})
130    ], [apu_found=no])
131 fi
132
133 if test "$apu_found" = "no"; then
134   AC_MSG_ERROR([APR-util not found.  Please read the documentation.])
135 fi
136
137 # Catch some misconfigurations:
138 case ${apr_found}.${apu_found} in
139 reconfig.yes)
140   AC_MSG_ERROR([Cannot use an external APR-util with the bundled APR])
141   ;;
142 yes.reconfig)
143   AC_MSG_ERROR([Cannot use an external APR with the bundled APR-util])
144   ;;
145 esac  
146
147 if test "$apu_found" = "reconfig"; then
148   APR_SUBDIR_CONFIG(srclib/apr-util,
149                     [--with-apr=../apr --prefix=$prefix --exec-prefix=$exec_prefix --libdir=$libdir --includedir=$includedir --bindir=$bindir],
150                     [--enable-layout=*|\'--enable-layout=*])
151   dnl We must be the last to build and the first to be cleaned
152   AP_BUILD_SRCLIB_DIRS="$AP_BUILD_SRCLIB_DIRS apr-util"
153   AP_CLEAN_SRCLIB_DIRS="apr-util $AP_CLEAN_SRCLIB_DIRS"
154   dnl APR and APR-Util major versions must match
155   apu_config="./srclib/apr-util/apu-${apr_major_version}-config"
156 fi
157
158 if test "$apu_found" = "obsolete"; then
159   AC_MSG_NOTICE([APR-util obsoleted, woohoo])
160 else
161   APR_ADDTO(LDFLAGS, `$apu_config --ldflags`)
162   APU_BINDIR=`$apu_config --bindir`
163   APU_INCLUDEDIR=`$apu_config --includedir`
164   APU_INCLUDES=`$apu_config --includes`
165   APU_VERSION=`$apu_config --version`
166   APU_CONFIG="$APU_BINDIR/apu-`echo ${APU_VERSION} | sed 's,\..*,,'`-config"
167 fi
168
169 dnl In case we picked up CC and CPP from APR, get that info into the
170 dnl config cache so that PCRE uses it.  Otherwise, CC and CPP used for
171 dnl PCRE and for our config tests will be whatever PCRE determines.
172 AC_PROG_CC
173 AC_PROG_CPP
174
175 dnl Try to get c99 support for variadic macros
176 ifdef([AC_PROG_CC_C99], [AC_PROG_CC_C99])
177
178 if test "x${cache_file}" = "x/dev/null"; then
179   # Likewise, ensure that CC and CPP are passed through to the pcre
180   # configure script iff caching is disabled (the autoconf 2.5x default).
181   export CC; export CPP
182 fi
183
184 dnl Absolute source/build directory
185 abs_srcdir=`(cd $srcdir && pwd)`
186 abs_builddir=`pwd`
187
188 AC_ARG_WITH(pcre,
189 APACHE_HELP_STRING(--with-pcre=PATH,Use external PCRE library))
190
191 AC_PATH_PROG(PCRE_CONFIG, pcre-config, false)
192 if test -d "$with_pcre" && test -x "$with_pcre/bin/pcre-config"; then
193    PCRE_CONFIG=$with_pcre/bin/pcre-config
194 elif test -x "$with_pcre"; then
195    PCRE_CONFIG=$with_pcre
196 fi
197
198 if test "$PCRE_CONFIG" != "false"; then
199   if $PCRE_CONFIG --version >/dev/null 2>&1; then :; else
200     AC_MSG_ERROR([Did not find pcre-config script at $PCRE_CONFIG])
201   fi
202   AC_MSG_NOTICE([Using external PCRE library from $PCRE_CONFIG])
203   APR_ADDTO(PCRE_INCLUDES, [`$PCRE_CONFIG --cflags`])
204   APR_ADDTO(PCRE_LIBS, [`$PCRE_CONFIG --libs`])
205 else
206   AC_MSG_ERROR([pcre-config for libpcre not found. PCRE is required and available from http://pcre.org/])
207 fi
208 APACHE_SUBST(PCRE_LIBS)
209
210 echo $ac_n "${nl}Configuring Apache httpd ...${nl}"
211
212 dnl If the source dir is not equal to the build dir, 
213 dnl then we are running in VPATH mode.
214
215 APR_ADDTO(INCLUDES, [-I.])
216
217 if test "$abs_builddir" != "$abs_srcdir"; then
218   APR_ADDTO(INCLUDES, [-I\$(top_builddir)/include])
219 fi
220
221 APR_ADDTO(INCLUDES, [-I\$(top_srcdir)/os/\$(OS_DIR) -I\$(top_srcdir)/include])
222
223 # apr/apr-util --includes may pick up system paths for dependent
224 # libraries, so ensure these are later in INCLUDES than local source
225 # directories.
226 APR_ADDTO(INCLUDES, $APR_INCLUDES)
227 APR_ADDTO(INCLUDES, $APU_INCLUDES)
228
229 dnl Add in path to PCRE includes
230 APR_ADDTO(INCLUDES, $PCRE_INCLUDES)
231
232 echo $ac_n "${nl}Applying OS-specific hints for httpd ...${nl}"
233
234 case $host in
235   *os2*)
236       # Use a custom made libtool replacement
237       echo "using aplibtool"
238       LIBTOOL="$abs_srcdir/srclib/apr/build/aplibtool"
239       SH_LIBTOOL="$LIBTOOL --shared --export-all"
240       SH_LIBS="\$(ALL_LIBS)"
241       CORE_IMPLIB_FILE="ApacheCoreOS2.la"
242       CORE_IMPLIB="$abs_srcdir/server/$CORE_IMPLIB_FILE"
243       MK_IMPLIB="emximp"
244       other_targets="$other_targets os2core"
245       INSTALL_PROG_FLAGS="-e .exe"
246       SHLTCFLAGS=""
247       LTCFLAGS=""
248       ;;
249   *)
250       if test "x$LTFLAGS" = "x"; then
251           LTFLAGS='--silent'
252       fi
253       my_libtool=`$apr_config --apr-libtool`
254       LIBTOOL="$my_libtool \$(LTFLAGS)"
255       libtoolversion=`$my_libtool --version`
256       case $libtoolversion in
257           *1.[[45]]* | *[[2-9]].[[0-9]]*)
258               SH_LIBTOOL='$(LIBTOOL)'
259               SHLTCFLAGS="-prefer-pic"
260               LTCFLAGS="-prefer-non-pic -static"
261               ;;
262           *)
263               SH_LIBTOOL='$(SHELL) $(top_builddir)/shlibtool $(LTFLAGS)'
264               SHLTCFLAGS=""
265               LTCFLAGS=""
266               ;;
267       esac
268       ;;
269 esac
270 APACHE_SUBST(SHLTCFLAGS)
271 APACHE_SUBST(LTCFLAGS)
272
273 case $host in
274   *-apple-aux3*)
275       APR_SETVAR(SINGLE_LISTEN_UNSERIALIZED_ACCEPT, [1])
276       ;;
277   *os2-emx*)
278       APR_SETVAR(SINGLE_LISTEN_UNSERIALIZED_ACCEPT, [1])
279       ;;
280   *-linux-*)
281       case `uname -r` in
282         2.[[2-9]]* ) 
283             APR_SETVAR(SINGLE_LISTEN_UNSERIALIZED_ACCEPT, [1])
284             ;;
285         * )
286             ;;
287       esac
288       ;;
289   *486-*-bsdi* | *-netbsd* | *-freebsd* | *-apple-darwin* | *-dec-osf* | *-qnx)
290       APR_SETVAR(SINGLE_LISTEN_UNSERIALIZED_ACCEPT, [1])
291       ;;
292   *-solaris2*)
293       dnl This is a hack -- we should be using AC_TRY_RUN instead
294       ap_platform_runtime_link_flag="-R"
295       dnl solaris 8 and above don't have a thundering herd
296       dnl not sure about rev's before this one.
297       case `uname -r` in
298         5.[567]*)
299             ;;
300         * )
301             APR_SETVAR(SINGLE_LISTEN_UNSERIALIZED_ACCEPT, [1])
302             ;;
303       esac
304       ;;
305   *cygwin*)
306       APR_SETVAR(SINGLE_LISTEN_UNSERIALIZED_ACCEPT, [1])
307       ;;
308   *mingw32*)
309       APR_ADDTO(INTERNAL_CPPFLAGS, [-DAP_DECLARE_EXPORT])
310       APR_SETIFNULL(ac_cv_func_times, [no])
311       APR_SETIFNULL(ac_cv_func_getpwnam, [no])
312       APR_SETIFNULL(ac_cv_func_getgrnam, [no])
313       ;;
314   *aix*)
315       aixver=`echo $host | sed 's/^[[^0-9]]*//' | sed 's/\.//g'`
316       if test $aixver -ge 4320; then
317         APR_SETVAR(SINGLE_LISTEN_UNSERIALIZED_ACCEPT, [1])
318       fi
319       ;;
320   *os390*)
321       APR_SETVAR(SINGLE_LISTEN_UNSERIALIZED_ACCEPT, [1])
322       ;;
323 esac
324
325 APR_SETVAR(AP_NONBLOCK_WHEN_MULTI_LISTEN, [1])
326
327 dnl
328 dnl Process command line arguments. This is done early in the process so the
329 dnl user can get feedback quickly in case of an error.
330 dnl
331 dnl ### need to move some of the arguments "up here"
332
333 dnl ## Check for programs
334
335 AC_PATH_PROG(RM, rm)
336 AC_PATH_PROG(PKGCONFIG, pkg-config)
337 AC_PATH_PROG(RSYNC, rsync)
338 AC_PROG_AWK
339 AC_PROG_LN_S
340 AC_CHECK_TOOL(RANLIB, ranlib, true)
341 dnl AC_PATH_PROG(PERL_PATH, perl)
342 AC_CHECK_PROGS(LYNX_PATH,[lynx links elinks], [lynx])
343
344 # Hard-coded install programs
345 MKINSTALLDIRS="\$(abs_srcdir)/build/mkdir.sh"
346 INSTALL="\$(LIBTOOL) --mode=install \$(abs_srcdir)/build/install.sh -c"
347 APACHE_SUBST(MKINSTALLDIRS)
348 APACHE_SUBST(INSTALL)
349
350 dnl Various OS checks that apparently set required flags
351 ifdef([AC_USE_SYSTEM_EXTENSIONS], [
352 AC_USE_SYSTEM_EXTENSIONS
353 ], [
354 AC_AIX
355 AC_MINIX
356 ])
357
358 AC_ISC_POSIX
359
360 # Ensure that satisfactory versions of apr and apr-util are 
361 # found if external copies are configured.
362 if test "${apr_found}" = "yes"; then
363   # Require at least APR 1.3.x otherwise fail
364   APACHE_CHECK_APxVER([apr], 1, 3)
365 fi
366
367 if test "${apu_found}" = "yes"; then
368   # Require at least APR-util 1.3.x otherwise fail
369   if test "${apr_found}" = "yes"; then
370     # we need to add the APR includes to CPPFLAGS
371     apu_ckver_CPPFLAGS="$CPPFLAGS"
372     CPPFLAGS="$CPPFLAGS `$apr_config --includes`"
373     APACHE_CHECK_APxVER([apu], 1, 3)
374     CPPFLAGS="$apu_ckver_CPPFLAGS"
375   else
376     APACHE_CHECK_APxVER([apu], 1, 3)
377   fi
378 fi
379
380 dnl Check for what we can generate dependency files with
381 APR_CHECK_DEPEND
382
383 dnl ## Check for libraries
384
385 dnl ## Check for header files
386
387 dnl I think these are just used all over the place, so just check for
388 dnl them at the base of the tree. If some are specific to a single
389 dnl directory, they should be moved (Comment #Spoon)
390
391 dnl Regarding standard header files: AC_HEADER_STDC doesn't set symbols
392 dnl HAVE_STRING_H, HAVE_STDLIB_H, etc., so those are checked for
393 dnl explicitly so that the normal HAVE_xxx_H symbol is defined.
394
395 AC_HEADER_STDC
396 AC_CHECK_HEADERS( \
397 string.h \
398 limits.h \
399 unistd.h \
400 sys/socket.h \
401 pwd.h \
402 grp.h \
403 strings.h \
404 sys/prctl.h \
405 sys/processor.h \
406 sys/sem.h \
407 sys/sdt.h
408 )
409 AC_HEADER_SYS_WAIT
410
411 dnl ## Check for typedefs, structures, and compiler characteristics.
412
413 AC_C_CONST
414
415 dnl ## Check for library functions
416 dnl ## sqrt() only needed in support/ab.c
417 saved_LIBS="$LIBS"
418 LIBS=""
419 AC_SEARCH_LIBS(sqrt, m)
420 MATH_LIBS="$LIBS"
421 APACHE_SUBST(MATH_LIBS)
422 LIBS="$saved_LIBS"
423
424 saved_LIBS="$LIBS"
425 LIBS=""
426 AC_SEARCH_LIBS(crypt, crypt)
427 CRYPT_LIBS="$LIBS"
428 APACHE_SUBST(CRYPT_LIBS)
429 LIBS="$saved_LIBS"
430
431 dnl See Comment #Spoon
432
433 AC_CHECK_FUNCS( \
434 getpwnam \
435 getgrnam \
436 initgroups \
437 bindprocessor \
438 prctl \
439 timegm \
440 getpgid \
441 fopen64
442 )
443
444 dnl confirm that a void pointer is large enough to store a long integer
445 APACHE_CHECK_VOID_PTR_LEN
446
447 AC_CACHE_CHECK([for gettid()], ac_cv_gettid,
448 [AC_TRY_RUN(#define _GNU_SOURCE
449 #include <unistd.h>
450 #include <sys/syscall.h>
451 #include <sys/types.h>
452 int main(int argc, char **argv) {
453 pid_t t = syscall(SYS_gettid); return t == -1 ? 1 : 0; },
454 [ac_cv_gettid=yes], [ac_cv_gettid=no], [ac_cv_gettid=no])])
455 if test "$ac_cv_gettid" = "yes"; then
456     AC_DEFINE(HAVE_GETTID, 1, [Define if you have gettid()])
457 fi
458
459 dnl ## Check for the tm_gmtoff field in struct tm to get the timezone diffs
460 AC_CACHE_CHECK([for tm_gmtoff in struct tm], ac_cv_struct_tm_gmtoff,
461 [AC_TRY_COMPILE([#include <sys/types.h>
462 #include <time.h>], [struct tm tm; tm.tm_gmtoff;],
463   ac_cv_struct_tm_gmtoff=yes, ac_cv_struct_tm_gmtoff=no)])
464 if test "$ac_cv_struct_tm_gmtoff" = "yes"; then
465     AC_DEFINE(HAVE_GMTOFF, 1, [Define if struct tm has a tm_gmtoff field])
466 fi
467
468 dnl ## Set up any appropriate OS-specific environment variables for apachectl
469
470 case $host in
471     *aix*)
472         # for 32-bit builds, increase MAXDATA to allow lots of threads
473         if test x$OBJECT_MODE != x64; then
474             OS_SPECIFIC_VARS="LDR_CNTRL=\"MAXDATA=0x80000000\" ; export LDR_CNTRL ;"
475         fi
476         OS_SPECIFIC_VARS="$OS_SPECIFIC_VARS AIXTHREAD_SCOPE=S ; export AIXTHREAD_SCOPE"
477         OS_SPECIFIC_VARS="$OS_SPECIFIC_VARS ; AIXTHREAD_MUTEX_DEBUG=OFF ; export AIXTHREAD_MUTEX_DEBUG"
478         OS_SPECIFIC_VARS="$OS_SPECIFIC_VARS ; AIXTHREAD_RWLOCK_DEBUG=OFF ; export AIXTHREAD_RWLOCK_DEBUG"
479         OS_SPECIFIC_VARS="$OS_SPECIFIC_VARS ; AIXTHREAD_COND_DEBUG=OFF ; export AIXTHREAD_COND_DEBUG"
480         OS_SPECIFIC_VARS="$OS_SPECIFIC_VARS ; SPINLOOPTIME=1000 ; export SPINLOOPTIME"
481         OS_SPECIFIC_VARS="$OS_SPECIFIC_VARS ; YIELDLOOPTIME=8 ; export YIELDLOOPTIME"
482         OS_SPECIFIC_VARS="$OS_SPECIFIC_VARS ; MALLOCMULTIHEAP=considersize,heaps:8 ; export MALLOCMULTIHEAP"
483         ;;
484     *os390*)
485         OS_SPECIFIC_VARS="export _CEE_RUNOPTS=\"STACK(,,ANY)\" ; export _EDC_ADD_ERRNO2=1"
486         ;;
487     *)
488         OS_SPECIFIC_VARS=""
489 esac
490       
491 AC_ARG_WITH(port,APACHE_HELP_STRING(--with-port=PORT,Port on which to listen (default is 80)),
492         [if test "$withval" = "yes"; then AC_MSG_ERROR('option --with-port requires a value (the TCP port number)'); else PORT="$withval"; fi],
493         [PORT=80])
494
495 AC_ARG_WITH(sslport,APACHE_HELP_STRING(--with-sslport=SSLPORT,Port on which to securelisten (default is 443)),
496         [if test "$withval" = "yes"; then AC_MSG_ERROR('option --with-sslport requires a value (the SSL TCP port number)'); else SSLPORT="$withval"; fi],
497         [SSLPORT=443])
498
499 DTRACE=true
500 AC_ARG_ENABLE(dtrace,APACHE_HELP_STRING(--enable-dtrace,Enable DTrace probes),
501 [
502   enable_dtrace=$enableval
503   APR_ADDTO(CPPFLAGS, -DAPR_DTRACE_PROVIDER)
504   AC_MSG_ERROR('DTrace Support in the build system is not complete. Patches Welcome!')
505 ],
506 [
507   enable_dtrace=no
508 ])
509
510 dnl Disabled dtrace build for now.
511 enable_dtrace=no
512
513 case $host in
514   *-solaris2*)
515     if test $enable_dtrace = "yes" -a "$ac_cv_header_sys_sdt_h" = "yes"; then
516         AC_DEFINE(AP_ENABLE_DTRACE, 1,
517                   [Enable DTrace probes])
518         DTRACE="/usr/sbin/dtrace $DTRACEFLAGS"
519         test -f include/apache_probes.h || $DTRACE -h -s apache_probes.d -o include/apache_probes.h
520     fi
521     ;;
522 esac
523
524 APACHE_SUBST(DTRACE)
525
526 AC_ARG_ENABLE(hook-probes,APACHE_HELP_STRING(--enable-hook-probes,Enable APR hook probes),
527 [
528     AC_DEFINE(AP_HOOK_PROBES_ENABLED, 1,
529         [Enable the APR hook probes capability, reading from ap_hook_probes.h])
530     APR_ADDTO(INTERNAL_CPPFLAGS, -DAP_HOOK_PROBES_ENABLED)
531 ])dnl
532
533 AC_ARG_ENABLE(exception-hook,APACHE_HELP_STRING(--enable-exception-hook,Enable fatal exception hook),
534 [
535     AC_DEFINE(AP_ENABLE_EXCEPTION_HOOK, 1,
536               [Allow modules to run hook after a fatal exception])
537 ])dnl
538
539 AC_ARG_ENABLE(maintainer-mode,APACHE_HELP_STRING(--enable-maintainer-mode,Turn on debugging and compile time warnings),
540 [
541   APR_ADDTO(CPPFLAGS, -DAP_DEBUG)
542   if test "$GCC" = "yes"; then
543     APR_ADDTO(CFLAGS,[-Wall -Wmissing-prototypes -Wstrict-prototypes -Wmissing-declarations -Wpointer-arith])
544     AC_CACHE_CHECK([whether gcc accepts -Wdeclaration-after-statement], [ap_cv_cc_Wdas], [
545       save_CFLAGS=$CFLAGS
546       CFLAGS="$CFLAGS -Wdeclaration-after-statement"
547       AC_COMPILE_IFELSE([AC_LANG_SOURCE([int foo() { return 0; }])],
548         [ap_cv_cc_Wdas=yes], [ap_cv_cc_Wdas=no])
549       CFLAGS=$save_CFLAGS
550     ])
551     if test "$ap_cv_cc_Wdas" = "yes"; then
552       APR_ADDTO(CFLAGS,[-Wdeclaration-after-statement])
553     fi
554   elif test "$AIX_XLC" = "yes"; then
555     APR_ADDTO(CFLAGS,-qfullpath -qinitauto=FE -qcheck=all -qinfo=pro)
556   fi
557 ])dnl
558
559 AC_ARG_ENABLE(debugger-mode,APACHE_HELP_STRING(--enable-debugger-mode,Turn on debugging and compile time warnings and turn off optimization),
560 [
561   APR_ADDTO(CPPFLAGS, -DAP_DEBUG)
562   if test "$GCC" = "yes"; then
563     APR_ADDTO(CFLAGS,[-Wall -Wmissing-prototypes -Wstrict-prototypes -Wmissing-declarations -Wpointer-arith -O0])
564     AC_CACHE_CHECK([whether gcc accepts -Wdeclaration-after-statement], [ap_cv_cc_Wdas], [
565       save_CFLAGS=$CFLAGS
566       CFLAGS="$CFLAGS -Wdeclaration-after-statement"
567       AC_COMPILE_IFELSE([AC_LANG_SOURCE([int foo() { return 0; }])],
568         [ap_cv_cc_Wdas=yes], [ap_cv_cc_Wdas=no])
569       CFLAGS=$save_CFLAGS
570     ])
571     if test "$ap_cv_cc_Wdas" = "yes"; then
572       APR_ADDTO(CFLAGS,[-Wdeclaration-after-statement])
573     fi
574   elif test "$AIX_XLC" = "yes"; then
575     APR_ADDTO(CFLAGS,-qfullpath -qinitauto=FE -qcheck=all -qinfo=pro)
576   fi
577 ])dnl
578
579 dnl Conditionally enable PIE support for GNU toolchains.
580 AC_ARG_ENABLE(pie,APACHE_HELP_STRING(--enable-pie,Build httpd as a Position Independent Executable))
581 if test "$enable_pie" = "yes"; then
582    AC_CACHE_CHECK([whether $CC accepts PIE flags], [ap_cv_cc_pie], [
583      save_CFLAGS=$CFLAGS
584      save_LDFLAGS=$LDFLAGS
585      CFLAGS="$CFLAGS -fPIE"
586      LDFLAGS="$LDFLAGS -pie"
587      AC_TRY_RUN([static int foo[30000]; int main () { return 0; }],
588       [ap_cv_cc_pie=yes], [ap_cv_cc_pie=no], [ap_cv_cc_pie=yes])
589      CFLAGS=$save_CFLAGS
590      LDFLAGS=$save_LDFLAGS
591    ])
592    if test "$ap_cv_cc_pie" = "yes"; then
593      PICFLAGS="-fPIE"
594      PILDFLAGS="-pie"
595    else
596      AC_ERROR([--enable-pie requested but $CC failed using PIE flags])
597    fi
598 fi
599 AC_SUBST(PICFLAGS)
600 AC_SUBST(PILDFLAGS)
601
602 prefix="$orig_prefix"
603 APACHE_ENABLE_MODULES
604
605 dnl reading config stubs
606 esyscmd(./build/config-stubs .)
607
608 APACHE_SUBST(progname)
609 APACHE_SUBST(OS)
610 APACHE_SUBST(OS_DIR)
611 APACHE_SUBST(BUILTIN_LIBS)
612 APACHE_SUBST(SHLIBPATH_VAR)
613 APACHE_SUBST(OS_SPECIFIC_VARS)
614
615 PRE_SHARED_CMDS='echo ""'
616 POST_SHARED_CMDS='echo ""'
617
618 dnl apache_need_shared tells us if Apache modules are being built as DSOs
619
620 if test "$apache_need_shared" = "yes"; then
621   if test -f $ac_aux_dir/ltconfig; then
622     $SHELL $ac_aux_dir/ltconfig --output=shlibtool --disable-static --srcdir=$ac_aux_dir --cache-file=./config.cache $ac_aux_dir/ltmain.sh
623   fi
624   shared_build="shared-build"
625 fi
626
627 dnl enable_so tells us if *any* modules can be built as DSOs
628
629 if test "$enable_so" = "yes" -o "$enable_so" = "static"; then
630   case $host in
631     *-ibm-aix*)
632       APR_ADDTO(HTTPD_LDFLAGS, [-Wl,-uXML_Parse -Wl,-bE:$abs_builddir/server/httpd.exp])
633       APR_ADDTO(SH_LDFLAGS, [\$(EXTRA_LDFLAGS) \$(EXTRA_LIBS)])
634       APR_ADDTO(UTIL_LDFLAGS, [-Wl,-uXML_Parse])
635       ;;
636     *os390)
637       APR_ADDTO(HTTPD_LDFLAGS, [--main=$abs_srcdir/server/main.o --core-dll=$abs_srcdir/apachecore.dll])
638       APR_ADDTO(SH_LDFLAGS, [--core-dll=$abs_srcdir/apachecore.dll])
639   esac
640   MOD_SO_ENABLED=yes
641 fi
642 AC_SUBST(MOD_SO_ENABLED)
643
644 APACHE_SUBST(PRE_SHARED_CMDS)
645 APACHE_SUBST(POST_SHARED_CMDS)
646 APACHE_SUBST(shared_build)
647
648 AC_ARG_WITH(program-name,
649 APACHE_HELP_STRING(--with-program-name,alternate executable name),[
650   progname="$withval" ], [
651   progname="httpd"] )
652
653 # SuExec parameters
654 AC_ARG_WITH(suexec-bin,
655 APACHE_HELP_STRING(--with-suexec-bin,Path to suexec binary),[
656   AC_DEFINE_UNQUOTED(SUEXEC_BIN, "$withval", [Path to suexec binary] )
657 ] )
658
659 AC_ARG_WITH(suexec-caller,
660 APACHE_HELP_STRING(--with-suexec-caller,User allowed to call SuExec),[
661   AC_DEFINE_UNQUOTED(AP_HTTPD_USER, "$withval", [User allowed to call SuExec] ) ] )
662
663 AC_ARG_WITH(suexec-userdir,
664 APACHE_HELP_STRING(--with-suexec-userdir,User subdirectory),[
665   AC_DEFINE_UNQUOTED(AP_USERDIR_SUFFIX, "$withval", [User subdirectory] ) ] )
666
667 AC_ARG_WITH(suexec-docroot,
668 APACHE_HELP_STRING(--with-suexec-docroot,SuExec root directory),[
669   AC_DEFINE_UNQUOTED(AP_DOC_ROOT, "$withval", [SuExec root directory] ) ] )
670
671 AC_ARG_WITH(suexec-uidmin,
672 APACHE_HELP_STRING(--with-suexec-uidmin,Minimal allowed UID),[
673   AC_DEFINE_UNQUOTED(AP_UID_MIN, $withval, [Minimum allowed UID] ) ] )
674
675 AC_ARG_WITH(suexec-gidmin,
676 APACHE_HELP_STRING(--with-suexec-gidmin,Minimal allowed GID),[
677   AC_DEFINE_UNQUOTED(AP_GID_MIN, $withval, [Minimum allowed GID] ) ] )
678
679 AC_ARG_WITH(suexec-logfile,
680 APACHE_HELP_STRING(--with-suexec-logfile,Set the logfile),[
681   AC_DEFINE_UNQUOTED(AP_LOG_EXEC, "$withval", [SuExec log file] ) ] )
682
683 AC_ARG_WITH(suexec-safepath,
684 APACHE_HELP_STRING(--with-suexec-safepath,Set the safepath),[
685   AC_DEFINE_UNQUOTED(AP_SAFE_PATH, "$withval", [safe shell path for SuExec] ) ] )
686
687 AC_ARG_WITH(suexec-umask,
688 APACHE_HELP_STRING(--with-suexec-umask,umask for suexec'd process),[
689   AC_DEFINE_UNQUOTED(AP_SUEXEC_UMASK, 0$withval, [umask for suexec'd process] ) ] )
690
691 dnl APR should go after the other libs, so the right symbols can be picked up
692 if test x${apu_found} != xobsolete; then
693   AP_LIBS="$AP_LIBS `$apu_config --avoid-ldap --link-libtool --libs`"
694 fi
695 AP_LIBS="$AP_LIBS `$apr_config --link-libtool --libs`" 
696 APACHE_SUBST(AP_LIBS)
697 APACHE_SUBST(AP_BUILD_SRCLIB_DIRS)
698 APACHE_SUBST(AP_CLEAN_SRCLIB_DIRS)
699
700 AC_DEFINE(AP_USING_AUTOCONF, 1,
701                 [Using autoconf to configure Apache])
702
703 if test "$SINGLE_LISTEN_UNSERIALIZED_ACCEPT" = "1"; then
704     AC_DEFINE(SINGLE_LISTEN_UNSERIALIZED_ACCEPT, 1, 
705               [This platform doesn't suffer from the thundering herd problem])
706 fi
707
708 if test "$AP_NONBLOCK_WHEN_MULTI_LISTEN" = "1"; then
709     AC_DEFINE(AP_NONBLOCK_WHEN_MULTI_LISTEN, 1, 
710               [Listening sockets are non-blocking when there are more than 1])
711 fi
712
713 APR_CHECK_APR_DEFINE(APR_HAVE_IPV6)
714
715 AC_ARG_ENABLE(v4-mapped,APACHE_HELP_STRING(--enable-v4-mapped,Allow IPv6 sockets to handle IPv4 connections),
716
717   v4mapped=$enableval
718 ],
719 [
720     case $host in
721     *freebsd5*|*netbsd*|*openbsd*)
722         v4mapped=no
723         ;;
724     *)
725         v4mapped=yes
726         ;;
727     esac
728     if ap_mpm_is_enabled winnt; then
729         dnl WinNT MPM doesn't support this.
730         v4mapped=no
731     fi
732 ])
733
734 if test $v4mapped = "yes" -a $ac_cv_define_APR_HAVE_IPV6 = "yes"; then
735     AC_DEFINE(AP_ENABLE_V4_MAPPED, 1,
736               [Allow IPv4 connections on IPv6 listening sockets])
737 fi
738
739 APACHE_FAST_OUTPUT(Makefile modules/Makefile srclib/Makefile) 
740 APACHE_FAST_OUTPUT(os/Makefile server/Makefile)
741 APACHE_FAST_OUTPUT(support/Makefile)
742
743 if test -d ./test; then
744     APACHE_FAST_OUTPUT(test/Makefile)
745 fi
746
747 dnl ## Finalize the variables
748 echo $ac_n "${nl}Restore user-defined environment settings...${nl}"
749
750 APR_RESTORE_THE_ENVIRONMENT(CPPFLAGS, EXTRA_)
751 APR_RESTORE_THE_ENVIRONMENT(CFLAGS, EXTRA_)
752 APR_RESTORE_THE_ENVIRONMENT(CXXFLAGS, EXTRA_)
753 APR_RESTORE_THE_ENVIRONMENT(LDFLAGS, EXTRA_)
754 APR_RESTORE_THE_ENVIRONMENT(LIBS, EXTRA_)
755 APR_RESTORE_THE_ENVIRONMENT(INCLUDES, EXTRA_)
756
757 echo $ac_n "${nl}Construct makefiles and header files...${nl}"
758
759 APACHE_GEN_CONFIG_VARS
760
761 dnl ## Build modules.c
762 rm -f modules.c
763 echo $MODLIST | $AWK -f $srcdir/build/build-modules-c.awk > modules.c
764
765 APR_EXPAND_VAR(ap_prefix, $prefix)
766 AC_DEFINE_UNQUOTED(HTTPD_ROOT, "${ap_prefix}",
767         [Root directory of the Apache install area])
768 AC_DEFINE_UNQUOTED(SERVER_CONFIG_FILE, "${rel_sysconfdir}/${progname}.conf",
769         [Location of the config file, relative to the Apache root directory])
770 AC_DEFINE_UNQUOTED(AP_TYPES_CONFIG_FILE, "${rel_sysconfdir}/mime.types",
771         [Location of the MIME types config file, relative to the Apache root directory])
772
773 perlbin=`$ac_aux_dir/PrintPath perl`
774 if test "x$perlbin" = "x"; then
775     perlbin="/replace/with/path/to/perl/interpreter"
776 fi
777 AC_SUBST(perlbin)
778
779 dnl If we are running on BSD/OS, we need to use the BSD .include syntax.
780
781 BSD_MAKEFILE=no
782 ap_make_include=include
783 ap_make_delimiter=' '
784 case $host in
785 *bsdi*)
786     # Check whether they've installed GNU make
787     if make --version > /dev/null 2>&1; then
788         true
789     else
790         BSD_MAKEFILE=yes
791         ap_make_include=.include
792         ap_make_delimiter='"'
793     fi
794     ;;
795 esac
796 AC_SUBST(ap_make_include)
797 AC_SUBST(ap_make_delimiter)
798
799 dnl Ensure that docs/conf is created.
800 test -d docs/conf||$mkdir_p docs/conf
801
802 dnl Ensure that the httpd version is included
803 HTTPD_VERSION=`$abs_srcdir/build/get-version.sh all $abs_srcdir/include/ap_release.h AP_SERVER`
804 AC_SUBST(HTTPD_VERSION)
805
806 AC_OUTPUT($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],[
807   APACHE_GEN_MAKEFILES
808 ])