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[apache] / configure.in
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="$srcdir/srclib/apr/apr-${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 APR_ADDTO(LDFLAGS, `$apr_config --ldflags`)
108 SHLIBPATH_VAR=`$apr_config --shlib-path-var`
109 APR_BINDIR=`$apr_config --bindir`
110 APR_INCLUDEDIR=`$apr_config --includedir`
111 APR_INCLUDES=`$apr_config --includes`
112 APR_VERSION=`$apr_config --version`
113 apr_major_version=`echo ${APR_VERSION} | sed 's,\..*,,'`
114 APR_CONFIG="$APR_BINDIR/apr-${apr_major_version}-config"
115
116 echo $ac_n "${nl}Configuring Apache Portable Runtime Utility library...${nl}"
117
118 if test "x${apr_major_version}" = "x2"; then
119    apu_found=obsolete
120 elif test "x$with_included_apr" = "xyes"; then
121    apu_found=reconfig
122 else 
123    APR_FIND_APU("$srcdir/srclib/apr-util", "./srclib/apr-util", 1, ${apr_major_version})
124 fi
125
126 if test "$apu_found" = "no"; then
127   AC_MSG_ERROR([APR-util not found.  Please read the documentation.])
128 fi
129
130 # Catch some misconfigurations:
131 case ${apr_found}.${apu_found} in
132 reconfig.yes)
133   AC_MSG_ERROR([Cannot use an external APR-util with the bundled APR])
134   ;;
135 yes.reconfig)
136   AC_MSG_ERROR([Cannot use an external APR with the bundled APR-util])
137   ;;
138 esac  
139
140 if test "$apu_found" = "reconfig"; then
141   APR_SUBDIR_CONFIG(srclib/apr-util,
142                     [--with-apr=../apr --prefix=$prefix --exec-prefix=$exec_prefix --libdir=$libdir --includedir=$includedir --bindir=$bindir],
143                     [--enable-layout=*|\'--enable-layout=*])
144   dnl We must be the last to build and the first to be cleaned
145   AP_BUILD_SRCLIB_DIRS="$AP_BUILD_SRCLIB_DIRS apr-util"
146   AP_CLEAN_SRCLIB_DIRS="apr-util $AP_CLEAN_SRCLIB_DIRS"
147   dnl APR and APR-Util major versions must match
148   apu_config="${srcdir}/srclib/apr-util/apu-${apr_major_version}-config"
149 fi
150
151 if test "$apu_found" = "obsolete"; then
152   AC_MSG_NOTICE([APR-util obsoleted, woohoo])
153 else
154   APR_ADDTO(LDFLAGS, `$apu_config --ldflags`)
155   APU_BINDIR=`$apu_config --bindir`
156   APU_INCLUDEDIR=`$apu_config --includedir`
157   APU_INCLUDES=`$apu_config --includes`
158   APU_VERSION=`$apu_config --version`
159   APU_CONFIG="$APU_BINDIR/apu-`echo ${APU_VERSION} | sed 's,\..*,,'`-config"
160 fi
161
162 dnl In case we picked up CC and CPP from APR, get that info into the
163 dnl config cache so that PCRE uses it.  Otherwise, CC and CPP used for
164 dnl PCRE and for our config tests will be whatever PCRE determines.
165 AC_PROG_CC
166 AC_PROG_CPP
167
168 if test "x${cache_file}" = "x/dev/null"; then
169   # Likewise, ensure that CC and CPP are passed through to the pcre
170   # configure script iff caching is disabled (the autoconf 2.5x default).
171   export CC; export CPP
172 fi
173
174 dnl Absolute source/build directory
175 abs_srcdir=`(cd $srcdir && pwd)`
176 abs_builddir=`pwd`
177
178 AC_ARG_WITH(pcre,
179 APACHE_HELP_STRING(--with-pcre=PATH,Use external PCRE library))
180
181 AC_PATH_PROG(PCRE_CONFIG, pcre-config, false)
182 if test -d "$with_pcre" && test -x "$with_pcre/bin/pcre-config"; then
183    PCRE_CONFIG=$with_pcre/bin/pcre-config
184 elif test -x "$with_pcre"; then
185    PCRE_CONFIG=$with_pcre
186 fi
187
188 if test "$PCRE_CONFIG" != "false"; then
189   if $PCRE_CONFIG --version >/dev/null 2>&1; then :; else
190     AC_MSG_ERROR([Did not find pcre-config script at $PCRE_CONFIG])
191   fi
192   AC_MSG_NOTICE([Using external PCRE library from $PCRE_CONFIG])
193   APR_ADDTO(PCRE_INCLUDES, [`$PCRE_CONFIG --cflags`])
194   APR_ADDTO(PCRE_LIBS, [`$PCRE_CONFIG --libs`])
195 else
196   AC_MSG_ERROR([pcre-config for libpcre not found. PCRE is required and available from http://pcre.org/])
197 fi
198 APACHE_SUBST(PCRE_LIBS)
199
200 dnl Add PCRE_LIBS to HTTPD_LDFLAGS
201 APR_ADDTO(HTTPD_LDFLAGS, [\$(PCRE_LIBS)])
202
203 echo $ac_n "${nl}Configuring Apache httpd ...${nl}"
204
205 dnl If the source dir is not equal to the build dir, 
206 dnl then we are running in VPATH mode.
207
208 APR_ADDTO(INCLUDES, [-I.])
209
210 if test "$abs_builddir" != "$abs_srcdir"; then
211   APR_ADDTO(INCLUDES, [-I\$(top_builddir)/include])
212 fi
213
214 APR_ADDTO(INCLUDES, [-I\$(top_srcdir)/os/\$(OS_DIR) -I\$(top_srcdir)/server/mpm/\$(MPM_SUBDIR_NAME) -I\$(top_srcdir)/modules/http -I\$(top_srcdir)/modules/aaa -I\$(top_srcdir)/modules/filters -I\$(top_srcdir)/modules/proxy -I\$(top_srcdir)/modules/session -I\$(top_srcdir)/include -I\$(top_srcdir)/modules/generators -I\$(top_srcdir)/modules/mappers -I\$(top_srcdir)/modules/database])
215
216 # apr/apr-util --includes may pick up system paths for dependent
217 # libraries, so ensure these are later in INCLUDES than local source
218 # directories.
219 APR_ADDTO(INCLUDES, $APR_INCLUDES)
220 APR_ADDTO(INCLUDES, $APU_INCLUDES)
221
222 dnl Add in path to PCRE includes
223 APR_ADDTO(INCLUDES, $PCRE_INCLUDES)
224
225 echo $ac_n "${nl}Applying OS-specific hints for httpd ...${nl}"
226
227 case $host in
228   *os2*)
229       # Use a custom made libtool replacement
230       echo "using aplibtool"
231       LIBTOOL="$abs_srcdir/srclib/apr/build/aplibtool"
232       SH_LIBTOOL="$LIBTOOL --shared --export-all"
233       SH_LIBS="\$(ALL_LIBS)"
234       CORE_IMPLIB_FILE="ApacheCoreOS2.la"
235       CORE_IMPLIB="$abs_srcdir/server/$CORE_IMPLIB_FILE"
236       MK_IMPLIB="emximp"
237       other_targets="$other_targets os2core"
238       INSTALL_PROG_FLAGS="-e .exe"
239       SHLTCFLAGS=""
240       LTCFLAGS=""
241       ;;
242   *)
243       if test "x$LTFLAGS" = "x"; then
244           LTFLAGS='--silent'
245       fi
246       my_libtool=`$apr_config --apr-libtool`
247       LIBTOOL="$my_libtool \$(LTFLAGS)"
248       libtoolversion=`$my_libtool --version`
249       case $libtoolversion in
250           *1.[[45]]* | *[[2-9]].[[0-9]]*)
251               SH_LIBTOOL='$(LIBTOOL)'
252               SHLTCFLAGS="-prefer-pic"
253               LTCFLAGS="-prefer-non-pic -static"
254               ;;
255           *)
256               SH_LIBTOOL='$(SHELL) $(top_builddir)/shlibtool $(LTFLAGS)'
257               SHLTCFLAGS=""
258               LTCFLAGS=""
259               ;;
260       esac
261       ;;
262 esac
263 APACHE_SUBST(SHLTCFLAGS)
264 APACHE_SUBST(LTCFLAGS)
265
266 case $host in
267   *-apple-aux3*)
268       APR_SETVAR(APACHE_MPM, [prefork])
269       APR_SETVAR(SINGLE_LISTEN_UNSERIALIZED_ACCEPT, [1])
270       ;;
271   *-beos*)
272       APR_SETVAR(APACHE_MPM, [beos])
273       APR_SETVAR(SINGLE_LISTEN_UNSERIALIZED_ACCEPT, [1])
274       ;;
275   *os2-emx*)
276       APR_SETVAR(APACHE_MPM, [mpmt_os2])
277       APR_SETVAR(SINGLE_LISTEN_UNSERIALIZED_ACCEPT, [1])
278       ;;
279   *-linux-*)
280       case `uname -r` in
281         2.[[2-9]]* ) 
282             APR_SETVAR(SINGLE_LISTEN_UNSERIALIZED_ACCEPT, [1])
283             ;;
284         * )
285             ;;
286       esac
287       ;;
288   *486-*-bsdi* | *-netbsd* | *-freebsd* | *-apple-darwin* | *-dec-osf* | *-qnx)
289       APR_SETVAR(SINGLE_LISTEN_UNSERIALIZED_ACCEPT, [1])
290       ;;
291   *-solaris2*)
292       dnl This is a hack -- we should be using AC_TRY_RUN instead
293       ap_platform_runtime_link_flag="-R"
294       dnl solaris 8 and above don't have a thundering herd
295       dnl not sure about rev's before this one.
296       case `uname -r` in
297         5.[567]*)
298             ;;
299         * )
300             APR_SETVAR(SINGLE_LISTEN_UNSERIALIZED_ACCEPT, [1])
301             ;;
302       esac
303       ;;
304   *cygwin*)
305       APR_SETVAR(APACHE_MPM, [prefork])
306       APR_SETVAR(SINGLE_LISTEN_UNSERIALIZED_ACCEPT, [1])
307       ;;
308   *mingw32*)
309       APR_SETVAR(APACHE_MPM, [winnt])
310       APR_ADDTO(CPPFLAGS, [-DAP_DECLARE_EXPORT])
311       APR_SETIFNULL(ac_cv_func_times, [no])
312       APR_SETIFNULL(ac_cv_func_getpwnam, [no])
313       APR_SETIFNULL(ac_cv_func_getgrnam, [no])
314       ;;
315   *aix*)
316       aixver=`echo $host | sed 's/^[[^0-9]]*//' | sed 's/\.//g'`
317       if test $aixver -ge 4320; then
318         APR_SETVAR(SINGLE_LISTEN_UNSERIALIZED_ACCEPT, [1])
319       fi
320       ;;
321   *os390*)
322       APR_SETVAR(SINGLE_LISTEN_UNSERIALIZED_ACCEPT, [1])
323       ;;
324 esac
325
326 APR_SETVAR(AP_NONBLOCK_WHEN_MULTI_LISTEN, [1])
327
328 dnl
329 dnl Process command line arguments. This is done early in the process so the
330 dnl user can get feedback quickly in case of an error.
331 dnl
332 dnl ### need to move some of the arguments "up here"
333
334 dnl ## Check for programs
335
336 AC_PATH_PROG(RM, rm)
337 AC_PATH_PROG(PKGCONFIG, pkg-config)
338 AC_PATH_PROG(RSYNC, rsync)
339 AC_PROG_AWK
340 AC_PROG_LN_S
341 AC_CHECK_TOOL(RANLIB, ranlib, true)
342 dnl AC_PATH_PROG(PERL_PATH, perl)
343 AC_CHECK_PROGS(LYNX_PATH,[lynx links elinks], [lynx])
344
345 # Hard-coded install programs
346 MKINSTALLDIRS="\$(abs_srcdir)/build/mkdir.sh"
347 INSTALL="\$(LIBTOOL) --mode=install \$(abs_srcdir)/build/install.sh -c"
348 APACHE_SUBST(MKINSTALLDIRS)
349 APACHE_SUBST(INSTALL)
350
351 dnl Various OS checks that apparently set required flags
352 ifdef([AC_USE_SYSTEM_EXTENSIONS], [
353 AC_USE_SYSTEM_EXTENSIONS
354 ], [
355 AC_AIX
356 AC_MINIX
357 ])
358
359 AC_ISC_POSIX
360
361 # Ensure that satisfactory versions of apr and apr-util are 
362 # found if external copies are configured.
363 if test "${apr_found}" = "yes"; then
364   # Require at least APR 1.3.x otherwise fail
365   APACHE_CHECK_APxVER([apr], 1, 3)
366 fi
367
368 if test "${apu_found}" = "yes"; then
369   # Require at least APR-util 1.3.x otherwise fail
370   APACHE_CHECK_APxVER([apu], 1, 3)
371 fi
372
373 dnl Check for what we can generate dependency files with
374 APR_CHECK_DEPEND
375
376 dnl ## Check for libraries
377
378 dnl ## Check for header files
379
380 dnl I think these are just used all over the place, so just check for
381 dnl them at the base of the tree. If some are specific to a single
382 dnl directory, they should be moved (Comment #Spoon)
383
384 dnl Regarding standard header files: AC_HEADER_STDC doesn't set symbols
385 dnl HAVE_STRING_H, HAVE_STDLIB_H, etc., so those are checked for
386 dnl explicitly so that the normal HAVE_xxx_H symbol is defined.
387
388 AC_HEADER_STDC
389 AC_CHECK_HEADERS( \
390 string.h \
391 limits.h \
392 unistd.h \
393 sys/socket.h \
394 pwd.h \
395 grp.h \
396 strings.h \
397 sys/prctl.h \
398 sys/processor.h \
399 sys/sem.h \
400 sys/sdt.h
401 )
402 AC_HEADER_SYS_WAIT
403
404 dnl ## Check for typedefs, structures, and compiler characteristics.
405
406 AC_C_CONST
407
408 dnl ## Check for library functions
409 dnl ## sqrt() only needed in support/ab.c
410 saved_LIBS="$LIBS"
411 LIBS=""
412 AC_SEARCH_LIBS(sqrt, m)
413 MATH_LIBS="$LIBS"
414 APACHE_SUBST(MATH_LIBS)
415 LIBS="$saved_LIBS"
416
417 dnl See Comment #Spoon
418
419 AC_CHECK_FUNCS( \
420 getpwnam \
421 getgrnam \
422 initgroups \
423 bindprocessor \
424 prctl \
425 timegm \
426 getpgid
427 )
428
429 dnl confirm that a void pointer is large enough to store a long integer
430 APACHE_CHECK_VOID_PTR_LEN
431
432 dnl ## Check for the tm_gmtoff field in struct tm to get the timezone diffs
433 AC_CACHE_CHECK([for tm_gmtoff in struct tm], ac_cv_struct_tm_gmtoff,
434 [AC_TRY_COMPILE([#include <sys/types.h>
435 #include <time.h>], [struct tm tm; tm.tm_gmtoff;],
436   ac_cv_struct_tm_gmtoff=yes, ac_cv_struct_tm_gmtoff=no)])
437 if test "$ac_cv_struct_tm_gmtoff" = "yes"; then
438     AC_DEFINE(HAVE_GMTOFF, 1, [Define if struct tm has a tm_gmtoff field])
439 fi
440
441 dnl ## Set up any appropriate OS-specific environment variables for apachectl
442
443 case $host in
444     *aix*)
445         # for 32-bit builds, increase MAXDATA to allow lots of threads
446         if test x$OBJECT_MODE != x64; then
447             OS_SPECIFIC_VARS="LDR_CNTRL=\"MAXDATA=0x80000000\" ; export LDR_CNTRL ;"
448         fi
449         OS_SPECIFIC_VARS="$OS_SPECIFIC_VARS AIXTHREAD_SCOPE=S ; export AIXTHREAD_SCOPE"
450         OS_SPECIFIC_VARS="$OS_SPECIFIC_VARS ; AIXTHREAD_MUTEX_DEBUG=OFF ; export AIXTHREAD_MUTEX_DEBUG"
451         OS_SPECIFIC_VARS="$OS_SPECIFIC_VARS ; AIXTHREAD_RWLOCK_DEBUG=OFF ; export AIXTHREAD_RWLOCK_DEBUG"
452         OS_SPECIFIC_VARS="$OS_SPECIFIC_VARS ; AIXTHREAD_COND_DEBUG=OFF ; export AIXTHREAD_COND_DEBUG"
453         OS_SPECIFIC_VARS="$OS_SPECIFIC_VARS ; SPINLOOPTIME=1000 ; export SPINLOOPTIME"
454         OS_SPECIFIC_VARS="$OS_SPECIFIC_VARS ; YIELDLOOPTIME=8 ; export YIELDLOOPTIME"
455         OS_SPECIFIC_VARS="$OS_SPECIFIC_VARS ; MALLOCMULTIHEAP=considersize,heaps:8 ; export MALLOCMULTIHEAP"
456         ;;
457     *os390*)
458         OS_SPECIFIC_VARS="export _CEE_RUNOPTS=\"STACK(,,ANY)\" ; export _EDC_ADD_ERRNO2=1"
459         ;;
460     *)
461         OS_SPECIFIC_VARS=""
462 esac
463       
464 AC_ARG_WITH(port,APACHE_HELP_STRING(--with-port=PORT,Port on which to listen (default is 80)),
465         [if test "$withval" = "yes"; then AC_MSG_ERROR('option --with-port requires a value (the TCP port number)'); else PORT="$withval"; fi],
466         [PORT=80])
467
468 AC_ARG_WITH(sslport,APACHE_HELP_STRING(--with-sslport=SSLPORT,Port on which to securelisten (default is 443)),
469         [if test "$withval" = "yes"; then AC_MSG_ERROR('option --with-sslport requires a value (the SSL TCP port number)'); else SSLPORT="$withval"; fi],
470         [SSLPORT=443])
471
472 DTRACE=true
473 AC_ARG_ENABLE(dtrace,APACHE_HELP_STRING(--enable-dtrace,Enable DTrace probes),
474 [
475   enable_dtrace=$enableval
476   APR_ADDTO(CPPFLAGS, -DAPR_DTRACE_PROVIDER)
477   AC_MSG_ERROR('DTrace Support in the build system is not complete. Patches Welcome!')
478 ],
479 [
480   enable_dtrace=no
481 ])
482
483 dnl Disabled dtrace build for now.
484 enable_dtrace=no
485
486 case $host in
487   *-solaris2*)
488     if test $enable_dtrace = "yes" -a "$ac_cv_header_sys_sdt_h" = "yes"; then
489         AC_DEFINE(AP_ENABLE_DTRACE, 1,
490                   [Enable DTrace probes])
491         DTRACE="/usr/sbin/dtrace $DTRACEFLAGS"
492         test -f include/apache_probes.h || $DTRACE -h -s apache_probes.d -o include/apache_probes.h
493     fi
494     ;;
495 esac
496
497 APACHE_SUBST(DTRACE)
498
499 APR_CHECK_APR_DEFINE(APR_HAVE_IPV6)
500
501 AC_ARG_ENABLE(v4-mapped,APACHE_HELP_STRING(--enable-v4-mapped,Allow IPv6 sockets to handle IPv4 connections),
502
503   v4mapped=$enableval
504 ],
505 [
506     case $host in
507     *freebsd5*|*netbsd*|*openbsd*)
508         v4mapped=no
509         ;;
510     *)
511         v4mapped=yes
512         ;;
513 esac
514 ])
515
516 if test $v4mapped = "yes" -a $ac_cv_define_APR_HAVE_IPV6 = "yes"; then
517     AC_DEFINE(AP_ENABLE_V4_MAPPED, 1,
518               [Allow IPv4 connections on IPv6 listening sockets])
519 fi
520
521 AC_ARG_ENABLE(exception-hook,APACHE_HELP_STRING(--enable-exception-hook,Enable fatal exception hook),
522 [
523     AC_DEFINE(AP_ENABLE_EXCEPTION_HOOK, 1,
524               [Allow modules to run hook after a fatal exception])
525 ])dnl
526
527 AC_ARG_ENABLE(maintainer-mode,APACHE_HELP_STRING(--enable-maintainer-mode,Turn on debugging and compile time warnings),
528 [
529   APR_ADDTO(CPPFLAGS, -DAP_DEBUG)
530 ])dnl
531
532 dnl Conditionally enable PIE support for GNU toolchains.
533 AC_ARG_ENABLE(pie,APACHE_HELP_STRING(--enable-pie,Build httpd as a Position Independent Executable))
534 if test "$enable_pie" = "yes"; then
535    AC_CACHE_CHECK([whether $CC accepts PIE flags], [ap_cv_cc_pie], [
536      save_CFLAGS=$CFLAGS
537      save_LDFLAGS=$LDFLAGS
538      CFLAGS="$CFLAGS -fPIE"
539      LDFLAGS="$LDFLAGS -pie"
540      AC_TRY_RUN([static int foo[30000]; int main () { return 0; }],
541       [ap_cv_cc_pie=yes], [ap_cv_cc_pie=no], [ap_cv_cc_pie=yes])
542      CFLAGS=$save_CFLAGS
543      LDFLAGS=$save_LDFLAGS
544    ])
545    if test "$ap_cv_cc_pie" = "yes"; then
546      PICFLAGS="-fPIE"
547      PILDFLAGS="-pie"
548    else
549      AC_ERROR([--enable-pie requested but $CC failed using PIE flags])
550    fi
551 fi
552 AC_SUBST(PICFLAGS)
553 AC_SUBST(PILDFLAGS)
554
555 prefix="$orig_prefix"
556 APACHE_ENABLE_MODULES
557
558 dnl reading config stubs
559 esyscmd(./build/config-stubs .)
560
561 APACHE_SUBST(progname)
562 APACHE_SUBST(MPM_LIB)
563 APACHE_SUBST(OS)
564 APACHE_SUBST(OS_DIR)
565 APACHE_SUBST(BUILTIN_LIBS)
566 APACHE_SUBST(SHLIBPATH_VAR)
567 APACHE_SUBST(OS_SPECIFIC_VARS)
568
569 PRE_SHARED_CMDS='echo ""'
570 POST_SHARED_CMDS='echo ""'
571
572 dnl apache_need_shared tells us if Apache modules are being built as DSOs
573
574 if test "$apache_need_shared" = "yes"; then
575   if test -f $ac_aux_dir/ltconfig; then
576     $SHELL $ac_aux_dir/ltconfig --output=shlibtool --disable-static --srcdir=$ac_aux_dir --cache-file=./config.cache $ac_aux_dir/ltmain.sh
577   fi
578   shared_build="shared-build"
579 fi
580
581 dnl enable_so tells us if *any* modules can be built as DSOs
582
583 if test "$enable_so" = "yes"; then
584   case $host in
585     *-ibm-aix*)
586       APR_ADDTO(HTTPD_LDFLAGS, [-Wl,-uXML_Parse -Wl,-bE:$abs_builddir/server/httpd.exp])
587       APR_ADDTO(SH_LDFLAGS, [\$(EXTRA_LDFLAGS) \$(EXTRA_LIBS)])
588       APR_ADDTO(UTIL_LDFLAGS, [-Wl,-uXML_Parse])
589       ;;
590     *beos)
591       SH_LDFLAGS='$(top_builddir)/_APP_'
592       PRE_SHARED_CMDS='ln -s $(top_builddir)/httpd $(top_builddir)/_APP_'
593       POST_SHARED_CMDS='rm $(top_builddir)/_APP_'
594       ;;
595     *os390)
596       APR_ADDTO(HTTPD_LDFLAGS, [--main=$abs_srcdir/server/main.o --core-dll=$abs_srcdir/apachecore.dll])
597       APR_ADDTO(SH_LDFLAGS, [--core-dll=$abs_srcdir/apachecore.dll])
598   esac
599   MOD_SO_ENABLED=yes
600 fi
601 AC_SUBST(MOD_SO_ENABLED)
602
603 APACHE_SUBST(PRE_SHARED_CMDS)
604 APACHE_SUBST(POST_SHARED_CMDS)
605 APACHE_SUBST(shared_build)
606
607 AC_ARG_WITH(program-name,
608 APACHE_HELP_STRING(--with-program-name,alternate executable name),[
609   progname="$withval" ], [
610   progname="httpd"] )
611
612 # SuExec parameters
613 AC_ARG_WITH(suexec-bin,
614 APACHE_HELP_STRING(--with-suexec-bin,Path to suexec binary),[
615   AC_DEFINE_UNQUOTED(SUEXEC_BIN, "$withval", [Path to suexec binary] )
616 ] )
617
618 AC_ARG_WITH(suexec-caller,
619 APACHE_HELP_STRING(--with-suexec-caller,User allowed to call SuExec),[
620   AC_DEFINE_UNQUOTED(AP_HTTPD_USER, "$withval", [User allowed to call SuExec] ) ] )
621
622 AC_ARG_WITH(suexec-userdir,
623 APACHE_HELP_STRING(--with-suexec-userdir,User subdirectory),[
624   AC_DEFINE_UNQUOTED(AP_USERDIR_SUFFIX, "$withval", [User subdirectory] ) ] )
625
626 AC_ARG_WITH(suexec-docroot,
627 APACHE_HELP_STRING(--with-suexec-docroot,SuExec root directory),[
628   AC_DEFINE_UNQUOTED(AP_DOC_ROOT, "$withval", [SuExec root directory] ) ] )
629
630 AC_ARG_WITH(suexec-uidmin,
631 APACHE_HELP_STRING(--with-suexec-uidmin,Minimal allowed UID),[
632   AC_DEFINE_UNQUOTED(AP_UID_MIN, $withval, [Minimum allowed UID] ) ] )
633
634 AC_ARG_WITH(suexec-gidmin,
635 APACHE_HELP_STRING(--with-suexec-gidmin,Minimal allowed GID),[
636   AC_DEFINE_UNQUOTED(AP_GID_MIN, $withval, [Minimum allowed GID] ) ] )
637
638 AC_ARG_WITH(suexec-logfile,
639 APACHE_HELP_STRING(--with-suexec-logfile,Set the logfile),[
640   AC_DEFINE_UNQUOTED(AP_LOG_EXEC, "$withval", [SuExec log file] ) ] )
641
642 AC_ARG_WITH(suexec-safepath,
643 APACHE_HELP_STRING(--with-suexec-safepath,Set the safepath),[
644   AC_DEFINE_UNQUOTED(AP_SAFE_PATH, "$withval", [safe shell path for SuExec] ) ] )
645
646 AC_ARG_WITH(suexec-umask,
647 APACHE_HELP_STRING(--with-suexec-umask,umask for suexec'd process),[
648   AC_DEFINE_UNQUOTED(AP_SUEXEC_UMASK, 0$withval, [umask for suexec'd process] ) ] )
649
650 dnl APR should go after the other libs, so the right symbols can be picked up
651 if test x${apu_found} != xobsolete; then
652   AP_LIBS="$AP_LIBS `$apu_config --avoid-ldap --link-libtool --libs`"
653 fi
654 AP_LIBS="$AP_LIBS `$apr_config --link-libtool --libs`" 
655 APACHE_SUBST(AP_LIBS)
656 APACHE_SUBST(AP_BUILD_SRCLIB_DIRS)
657 APACHE_SUBST(AP_CLEAN_SRCLIB_DIRS)
658
659 AC_DEFINE(AP_USING_AUTOCONF, 1,
660                 [Using autoconf to configure Apache])
661
662 if test "$SINGLE_LISTEN_UNSERIALIZED_ACCEPT" = "1"; then
663     AC_DEFINE(SINGLE_LISTEN_UNSERIALIZED_ACCEPT, 1, 
664               [This platform doesn't suffer from the thundering herd problem])
665 fi
666
667 if test "$AP_NONBLOCK_WHEN_MULTI_LISTEN" = "1"; then
668     AC_DEFINE(AP_NONBLOCK_WHEN_MULTI_LISTEN, 1, 
669               [Listening sockets are non-blocking when there are more than 1])
670 fi
671
672
673 APACHE_FAST_OUTPUT(Makefile modules/Makefile srclib/Makefile) 
674 APACHE_FAST_OUTPUT(os/Makefile server/Makefile)
675 APACHE_FAST_OUTPUT(support/Makefile)
676
677 if test -d ./test; then
678     APACHE_FAST_OUTPUT(test/Makefile)
679 fi
680
681 dnl ## Finalize the variables
682 echo $ac_n "${nl}Restore user-defined environment settings...${nl}"
683
684 APR_RESTORE_THE_ENVIRONMENT(CPPFLAGS, EXTRA_)
685 APR_RESTORE_THE_ENVIRONMENT(CFLAGS, EXTRA_)
686 APR_RESTORE_THE_ENVIRONMENT(CXXFLAGS, EXTRA_)
687 APR_RESTORE_THE_ENVIRONMENT(LDFLAGS, EXTRA_)
688 APR_RESTORE_THE_ENVIRONMENT(LIBS, EXTRA_)
689 APR_RESTORE_THE_ENVIRONMENT(INCLUDES, EXTRA_)
690
691 echo $ac_n "${nl}Construct makefiles and header files...${nl}"
692
693 APACHE_GEN_CONFIG_VARS
694
695 dnl ## Build modules.c
696 rm -f modules.c
697 echo $MODLIST | $AWK -f $srcdir/build/build-modules-c.awk > modules.c
698
699 APR_EXPAND_VAR(ap_prefix, $prefix)
700 AC_DEFINE_UNQUOTED(HTTPD_ROOT, "${ap_prefix}",
701         [Root directory of the Apache install area])
702 AC_DEFINE_UNQUOTED(SERVER_CONFIG_FILE, "${rel_sysconfdir}/${progname}.conf",
703         [Location of the config file, relative to the Apache root directory])
704 AC_DEFINE_UNQUOTED(AP_TYPES_CONFIG_FILE, "${rel_sysconfdir}/mime.types",
705         [Location of the MIME types config file, relative to the Apache root directory])
706 AC_DEFINE_UNQUOTED(APACHE_MPM_DIR, "$MPM_DIR",
707         [Location of the source for the current MPM])
708
709 perlbin=`$ac_aux_dir/PrintPath perl`
710 if test "x$perlbin" = "x"; then
711     perlbin="/replace/with/path/to/perl/interpreter"
712 fi
713 AC_SUBST(perlbin)
714
715 dnl If we are running on BSD/OS, we need to use the BSD .include syntax.
716
717 BSD_MAKEFILE=no
718 ap_make_include=include
719 ap_make_delimiter=' '
720 case $host in
721 *bsdi*)
722     # Check whether they've installed GNU make
723     if make --version > /dev/null 2>&1; then
724         true
725     else
726         BSD_MAKEFILE=yes
727         ap_make_include=.include
728         ap_make_delimiter='"'
729     fi
730     ;;
731 esac
732 AC_SUBST(ap_make_include)
733 AC_SUBST(ap_make_delimiter)
734
735 dnl Ensure that docs/conf is created.
736 test -d docs/conf||$mkdir_p docs/conf
737
738 dnl Ensure that the httpd version is included
739 HTTPD_VERSION=`$abs_srcdir/build/get-version.sh all $abs_srcdir/include/ap_release.h AP_SERVER`
740 AC_SUBST(HTTPD_VERSION)
741
742 AC_OUTPUT($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],[
743   APACHE_GEN_MAKEFILES
744 ])
745
746 case $MPM_SUBDIR_NAME in
747 *experimental*)
748     echo ""
749     echo ""
750     echo "============================================================"
751     echo "    WARNING: THE '${APACHE_MPM}' MPM IS EXPERIMENTAL"
752     echo "============================================================"
753     echo " The selected MPM might not be fully functional!"
754     echo ""
755     echo " Development of this MPM is not complete. Do not use this"
756     echo " MPM unless you are a programmer willing to help fix it."
757     echo ""
758     echo " If you are looking for a stable server, you should not use"
759     echo " the '${APACHE_MPM}' MPM until it is moved out of experimental."
760     echo "============================================================"
761     echo ""
762     echo ""
763     ;;
764 esac