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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 ...${nl}"
72
73 AC_ARG_WITH(included-apr,
74 APACHE_HELP_STRING(--with-included-apr,Use bundled copies of APR/APR-Util))
75
76 # Only APR 1.x is supported.
77 apr_version=1
78
79 if test "x$with_included_apr" = "xyes"; then
80    apr_found=reconfig
81    apr_config="$srcdir/srclib/apr/apr-${apr_version}-config"
82 else 
83    APR_FIND_APR("$srcdir/srclib/apr", "./srclib/apr", 1, ${apr_version})
84 fi
85
86 if test "$apr_found" = "no"; then
87   AC_MSG_ERROR([APR not found.  Please read the documentation.])
88 fi
89
90 if test "$apr_found" = "reconfig"; then
91   APR_SUBDIR_CONFIG(srclib/apr,
92                     [$apache_apr_flags --prefix=$prefix --exec-prefix=$exec_prefix --libdir=$libdir --includedir=$includedir --bindir=$bindir --datadir=$datadir --with-installbuilddir=$installbuilddir],
93                     [--enable-layout=*|\'--enable-layout=*])
94   dnl We must be the first to build and the last to be cleaned
95   AP_BUILD_SRCLIB_DIRS="apr $AP_BUILD_SRCLIB_DIRS"
96   AP_CLEAN_SRCLIB_DIRS="$AP_CLEAN_SRCLIB_DIRS apr"
97 fi
98
99 APR_SETIFNULL(CC, `$apr_config --cc`)
100 APR_SETIFNULL(CPP, `$apr_config --cpp`)
101 APR_ADDTO(CFLAGS, `$apr_config --cflags`)
102 APR_ADDTO(CPPFLAGS, `$apr_config --cppflags`)
103 APR_ADDTO(LDFLAGS, `$apr_config --ldflags`)
104 SHLIBPATH_VAR=`$apr_config --shlib-path-var`
105 APR_BINDIR=`$apr_config --bindir`
106 APR_INCLUDEDIR=`$apr_config --includedir`
107 APR_INCLUDES=`$apr_config --includes`
108 APR_VERSION=`$apr_config --version`
109 APR_CONFIG="$APR_BINDIR/apr-`echo ${APR_VERSION} | sed 's,\..*,,'`-config"
110
111 echo $ac_n "${nl}Configuring Apache Portable Runtime Utility library...${nl}"
112
113 # Only APR-util 1.x is supported.
114 apu_version=1
115
116 if test "x$with_included_apr" = "xyes"; then
117    apu_found=reconfig
118    apu_config="${srcdir}/srclib/apr-util/apu-${apu_version}-config"
119 else 
120    APR_FIND_APU("$srcdir/srclib/apr-util", "./srclib/apr-util", 1, ${apu_version})
121 fi
122
123 if test "$apu_found" = "no"; then
124   AC_MSG_ERROR([APR-util not found.  Please read the documentation.])
125 fi
126
127 # Catch some misconfigurations:
128 case ${apr_found}.${apu_found} in
129 reconfig.yes)
130   AC_MSG_ERROR([Cannot use an external APR-util with the bundled APR])
131   ;;
132 yes.reconfig)
133   AC_MSG_ERROR([Cannot use an external APR with the bundled APR-util])
134   ;;
135 esac  
136
137 if test "$apu_found" = "reconfig"; then
138   APR_SUBDIR_CONFIG(srclib/apr-util,
139                     [--with-apr=../apr --prefix=$prefix --exec-prefix=$exec_prefix --libdir=$libdir --includedir=$includedir --bindir=$bindir],
140                     [--enable-layout=*|\'--enable-layout=*])
141   dnl We must be the last to build and the first to be cleaned
142   AP_BUILD_SRCLIB_DIRS="$AP_BUILD_SRCLIB_DIRS apr-util"
143   AP_CLEAN_SRCLIB_DIRS="apr-util $AP_CLEAN_SRCLIB_DIRS"
144 fi
145
146 APR_ADDTO(LDFLAGS, `$apu_config --ldflags`)
147 APU_BINDIR=`$apu_config --bindir`
148 APU_INCLUDEDIR=`$apu_config --includedir`
149 APU_INCLUDES=`$apu_config --includes`
150 APU_VERSION=`$apu_config --version`
151 APU_CONFIG="$APU_BINDIR/apu-`echo ${APU_VERSION} | sed 's,\..*,,'`-config"
152
153 dnl In case we picked up CC and CPP from APR, get that info into the
154 dnl config cache so that PCRE uses it.  Otherwise, CC and CPP used for
155 dnl PCRE and for our config tests will be whatever PCRE determines.
156 AC_PROG_CC
157 AC_PROG_CPP
158
159 if test "x${cache_file}" = "x/dev/null"; then
160   # Likewise, ensure that CC and CPP are passed through to the pcre
161   # configure script iff caching is disabled (the autoconf 2.5x default).
162   export CC; export CPP
163 fi
164
165 dnl Absolute source/build directory
166 abs_srcdir=`(cd $srcdir && pwd)`
167 abs_builddir=`pwd`
168
169 AC_ARG_WITH(pcre,
170 APACHE_HELP_STRING(--with-pcre=PATH,Use external PCRE library))
171
172 AC_PATH_PROG(PCRE_CONFIG, pcre-config, false)
173 if test -d "$with_pcre" && test -x "$with_pcre/bin/pcre-config"; then
174    PCRE_CONFIG=$with_pcre/bin/pcre-config
175 elif test -x "$with_pcre"; then
176    PCRE_CONFIG=$with_pcre
177 fi
178
179 if test "$PCRE_CONFIG" != "false"; then
180   if $PCRE_CONFIG --version >/dev/null 2>&1; then :; else
181     AC_MSG_ERROR([Did not find pcre-config script at $PCRE_CONFIG])
182   fi
183   AC_MSG_NOTICE([Using external PCRE library from $PCRE_CONFIG])
184   APR_ADDTO(CFLAGS, [`$PCRE_CONFIG --cflags`])
185   APR_ADDTO(LIBS, [`$PCRE_CONFIG --libs`])
186 else
187   AC_MSG_ERROR([pcre-config for libpcre not found. PCRE is required and available from http://pcre.org/])
188 fi
189
190 echo $ac_n "${nl}Configuring Apache httpd ...${nl}"
191
192 dnl If the source dir is not equal to the build dir, 
193 dnl then we are running in VPATH mode.
194
195 APR_ADDTO(INCLUDES, [-I.])
196
197 if test "$abs_builddir" != "$abs_srcdir"; then
198   APR_ADDTO(INCLUDES, [-I\$(top_builddir)/include])
199 fi
200
201 APR_ADDTO(INCLUDES, [-I\$(top_srcdir)/os/\$(OS_DIR) -I\$(top_srcdir)/server/mpm/\$(MPM_SUBDIR_NAME) -I\$(top_srcdir)/modules/http -I\$(top_srcdir)/modules/aaa -I\$(top_srcdir)/modules/filters -I\$(top_srcdir)/modules/proxy -I\$(top_srcdir)/modules/session -I\$(top_srcdir)/include -I\$(top_srcdir)/modules/generators -I\$(top_srcdir)/modules/mappers -I\$(top_srcdir)/modules/database])
202
203 # apr/apr-util --includes may pick up system paths for dependent
204 # libraries, so ensure these are later in INCLUDES than local source
205 # directories.
206 APR_ADDTO(INCLUDES, `$apr_config --includes`)
207 APR_ADDTO(INCLUDES, `$apu_config --includes`)
208
209 echo $ac_n "${nl}Applying OS-specific hints for httpd ...${nl}"
210
211 case $host in
212   *os2*)
213       # Use a custom made libtool replacement
214       echo "using aplibtool"
215       LIBTOOL="$abs_srcdir/srclib/apr/build/aplibtool"
216       SH_LIBTOOL="$LIBTOOL --shared --export-all"
217       SH_LIBS="\$(ALL_LIBS)"
218       CORE_IMPLIB_FILE="ApacheCoreOS2.la"
219       CORE_IMPLIB="$abs_srcdir/server/$CORE_IMPLIB_FILE"
220       MK_IMPLIB="emximp"
221       other_targets="$other_targets os2core"
222       INSTALL_PROG_FLAGS="-e .exe"
223       SHLTCFLAGS=""
224       LTCFLAGS=""
225       ;;
226   *)
227       if test "x$LTFLAGS" = "x"; then
228           LTFLAGS='--silent'
229       fi
230       my_libtool=`$apr_config --apr-libtool`
231       LIBTOOL="$my_libtool \$(LTFLAGS)"
232       libtoolversion=`$my_libtool --version`
233       case $libtoolversion in
234           *1.[[45]]* | *[[2-9]].[[0-9]]*)
235               SH_LIBTOOL='$(LIBTOOL)'
236               SHLTCFLAGS="-prefer-pic"
237               LTCFLAGS="-prefer-non-pic -static"
238               ;;
239           *)
240               SH_LIBTOOL='$(SHELL) $(top_builddir)/shlibtool $(LTFLAGS)'
241               SHLTCFLAGS=""
242               LTCFLAGS=""
243               ;;
244       esac
245       ;;
246 esac
247 APACHE_SUBST(SHLTCFLAGS)
248 APACHE_SUBST(LTCFLAGS)
249
250 case $host in
251   *-apple-aux3*)
252       APR_SETVAR(APACHE_MPM, [prefork])
253       APR_SETVAR(SINGLE_LISTEN_UNSERIALIZED_ACCEPT, [1])
254       ;;
255   *-beos*)
256       APR_SETVAR(APACHE_MPM, [beos])
257       APR_SETVAR(SINGLE_LISTEN_UNSERIALIZED_ACCEPT, [1])
258       ;;
259   *os2-emx*)
260       APR_SETVAR(APACHE_MPM, [mpmt_os2])
261       APR_SETVAR(SINGLE_LISTEN_UNSERIALIZED_ACCEPT, [1])
262       ;;
263   *-linux-*)
264       case `uname -r` in
265         2.[[2-9]]* ) 
266             APR_SETVAR(SINGLE_LISTEN_UNSERIALIZED_ACCEPT, [1])
267             ;;
268         * )
269             ;;
270       esac
271       ;;
272   *486-*-bsdi* | *-netbsd* | *-freebsd* | *-apple-darwin* | *-dec-osf* | *-qnx)
273       APR_SETVAR(SINGLE_LISTEN_UNSERIALIZED_ACCEPT, [1])
274       ;;
275   *-solaris2*)
276       dnl This is a hack -- we should be using AC_TRY_RUN instead
277       ap_platform_runtime_link_flag="-R"
278       dnl solaris 8 and above don't have a thundering herd
279       dnl not sure about rev's before this one.
280       case `uname -r` in
281         5.[567]*)
282             ;;
283         * )
284             APR_SETVAR(SINGLE_LISTEN_UNSERIALIZED_ACCEPT, [1])
285             ;;
286       esac
287       ;;
288   *cygwin*)
289       APR_SETVAR(APACHE_MPM, [prefork])
290       APR_SETVAR(SINGLE_LISTEN_UNSERIALIZED_ACCEPT, [1])
291       ;;
292   *mingw32*)
293       APR_SETVAR(APACHE_MPM, [winnt])
294       APR_ADDTO(CPPFLAGS, [-DAP_DECLARE_EXPORT])
295       APR_SETIFNULL(ac_cv_func_times, [no])
296       APR_SETIFNULL(ac_cv_func_getpwnam, [no])
297       APR_SETIFNULL(ac_cv_func_getgrnam, [no])
298       ;;
299   *aix*)
300       aixver=`echo $host | sed 's/^[[^0-9]]*//' | sed 's/\.//g'`
301       if test $aixver -ge 4320; then
302         APR_SETVAR(SINGLE_LISTEN_UNSERIALIZED_ACCEPT, [1])
303       fi
304       ;;
305   *os390*)
306       APR_SETVAR(SINGLE_LISTEN_UNSERIALIZED_ACCEPT, [1])
307       ;;
308 esac
309
310 APR_SETVAR(AP_NONBLOCK_WHEN_MULTI_LISTEN, [1])
311
312 dnl
313 dnl Process command line arguments. This is done early in the process so the
314 dnl user can get feedback quickly in case of an error.
315 dnl
316 dnl ### need to move some of the arguments "up here"
317
318 dnl ## Check for programs
319
320 AC_PATH_PROG(RM, rm)
321 AC_PATH_PROG(PKGCONFIG, pkg-config)
322 AC_PATH_PROG(RSYNC, rsync)
323 AC_PROG_AWK
324 AC_PROG_LN_S
325 AC_CHECK_TOOL(RANLIB, ranlib, true)
326 dnl AC_PATH_PROG(PERL_PATH, perl)
327 AC_CHECK_PROGS(LYNX_PATH,[lynx links elinks], [lynx])
328
329 # Hard-coded install programs
330 MKINSTALLDIRS="\$(abs_srcdir)/build/mkdir.sh"
331 INSTALL="\$(LIBTOOL) --mode=install \$(abs_srcdir)/build/install.sh -c"
332 APACHE_SUBST(MKINSTALLDIRS)
333 APACHE_SUBST(INSTALL)
334
335 dnl Various OS checks that apparently set required flags
336 ifdef([AC_USE_SYSTEM_EXTENSIONS], [
337 AC_USE_SYSTEM_EXTENSIONS
338 ], [
339 AC_AIX
340 AC_MINIX
341 ])
342
343 AC_ISC_POSIX
344
345 # Ensure that satisfactory versions of apr and apr-util are 
346 # found if external copies are configured.
347 if test "${apr_found}" = "yes"; then
348   # Require APR 1.3.x otherwise fail
349   APACHE_CHECK_APxVER([apr], 1, 3)
350 fi
351
352 if test "${apu_found}" = "yes"; then
353   # Require APR-util 1.3.x otherwise fail
354   APACHE_CHECK_APxVER([apu], 1, 3)
355 fi
356
357 dnl Check for what we can generate dependency files with
358 APR_CHECK_DEPEND
359
360 dnl ## Check for libraries
361
362 dnl ## Check for header files
363
364 dnl I think these are just used all over the place, so just check for
365 dnl them at the base of the tree. If some are specific to a single
366 dnl directory, they should be moved (Comment #Spoon)
367
368 dnl Regarding standard header files: AC_HEADER_STDC doesn't set symbols
369 dnl HAVE_STRING_H, HAVE_STDLIB_H, etc., so those are checked for
370 dnl explicitly so that the normal HAVE_xxx_H symbol is defined.
371
372 AC_HEADER_STDC
373 AC_CHECK_HEADERS( \
374 string.h \
375 limits.h \
376 unistd.h \
377 sys/socket.h \
378 pwd.h \
379 grp.h \
380 strings.h \
381 sys/prctl.h \
382 sys/processor.h \
383 sys/sem.h \
384 sys/sdt.h
385 )
386 AC_HEADER_SYS_WAIT
387
388 dnl ## Check for typedefs, structures, and compiler characteristics.
389
390 AC_C_CONST
391
392 dnl ## Check for library functions
393 dnl ## sqrt() only needed in support/ab.c
394 saved_LIBS="$LIBS"
395 LIBS=""
396 AC_SEARCH_LIBS(sqrt, m)
397 MATH_LIBS="$LIBS"
398 APACHE_SUBST(MATH_LIBS)
399 LIBS="$saved_LIBS"
400
401 dnl See Comment #Spoon
402
403 AC_CHECK_FUNCS( \
404 getpwnam \
405 getgrnam \
406 initgroups \
407 bindprocessor \
408 prctl \
409 timegm \
410 getpgid
411 )
412
413 dnl confirm that a void pointer is large enough to store a long integer
414 APACHE_CHECK_VOID_PTR_LEN
415
416 dnl ## Check for the tm_gmtoff field in struct tm to get the timezone diffs
417 AC_CACHE_CHECK([for tm_gmtoff in struct tm], ac_cv_struct_tm_gmtoff,
418 [AC_TRY_COMPILE([#include <sys/types.h>
419 #include <time.h>], [struct tm tm; tm.tm_gmtoff;],
420   ac_cv_struct_tm_gmtoff=yes, ac_cv_struct_tm_gmtoff=no)])
421 if test "$ac_cv_struct_tm_gmtoff" = "yes"; then
422     AC_DEFINE(HAVE_GMTOFF, 1, [Define if struct tm has a tm_gmtoff field])
423 fi
424
425 dnl ## Set up any appropriate OS-specific environment variables for apachectl
426
427 case $host in
428     *aix*)
429         # for 32-bit builds, increase MAXDATA to allow lots of threads
430         if test x$OBJECT_MODE != x64; then
431             OS_SPECIFIC_VARS="LDR_CNTRL=\"MAXDATA=0x80000000\" ; export LDR_CNTRL ;"
432         fi
433         OS_SPECIFIC_VARS="$OS_SPECIFIC_VARS AIXTHREAD_SCOPE=S ; export AIXTHREAD_SCOPE"
434         OS_SPECIFIC_VARS="$OS_SPECIFIC_VARS ; AIXTHREAD_MUTEX_DEBUG=OFF ; export AIXTHREAD_MUTEX_DEBUG"
435         OS_SPECIFIC_VARS="$OS_SPECIFIC_VARS ; AIXTHREAD_RWLOCK_DEBUG=OFF ; export AIXTHREAD_RWLOCK_DEBUG"
436         OS_SPECIFIC_VARS="$OS_SPECIFIC_VARS ; AIXTHREAD_COND_DEBUG=OFF ; export AIXTHREAD_COND_DEBUG"
437         OS_SPECIFIC_VARS="$OS_SPECIFIC_VARS ; SPINLOOPTIME=1000 ; export SPINLOOPTIME"
438         OS_SPECIFIC_VARS="$OS_SPECIFIC_VARS ; YIELDLOOPTIME=8 ; export YIELDLOOPTIME"
439         OS_SPECIFIC_VARS="$OS_SPECIFIC_VARS ; MALLOCMULTIHEAP=considersize,heaps:8 ; export MALLOCMULTIHEAP"
440         ;;
441     *os390*)
442         OS_SPECIFIC_VARS="export _CEE_RUNOPTS=\"STACK(,,ANY)\" ; export _EDC_ADD_ERRNO2=1"
443         ;;
444     *)
445         OS_SPECIFIC_VARS=""
446 esac
447       
448 AC_ARG_WITH(port,APACHE_HELP_STRING(--with-port=PORT,Port on which to listen (default is 80)),
449         [if test "$withval" = "yes"; then AC_MSG_ERROR('option --with-port requires a value (the TCP port number)'); else PORT="$withval"; fi],
450         [PORT=80])
451
452 AC_ARG_WITH(sslport,APACHE_HELP_STRING(--with-sslport=SSLPORT,Port on which to securelisten (default is 443)),
453         [if test "$withval" = "yes"; then AC_MSG_ERROR('option --with-sslport requires a value (the SSL TCP port number)'); else SSLPORT="$withval"; fi],
454         [SSLPORT=443])
455
456 DTRACE=true
457 AC_ARG_ENABLE(dtrace,APACHE_HELP_STRING(--enable-dtrace,Enable DTrace probes),
458 [
459   enable_dtrace=$enableval
460   APR_ADDTO(CPPFLAGS, -DAPR_DTRACE_PROVIDER)
461   AC_MSG_ERROR('DTrace Support in the build system is not complete. Patches Welcome!')
462 ],
463 [
464   enable_dtrace=no
465 ])
466
467 dnl Disabled dtrace build for now.
468 enable_dtrace=no
469
470 case $host in
471   *-solaris2*)
472     if test $enable_dtrace = "yes" -a "$ac_cv_header_sys_sdt_h" = "yes"; then
473         AC_DEFINE(AP_ENABLE_DTRACE, 1,
474                   [Enable DTrace probes])
475         DTRACE="/usr/sbin/dtrace $DTRACEFLAGS"
476         test -f include/apache_probes.h || $DTRACE -h -s apache_probes.d -o include/apache_probes.h
477     fi
478     ;;
479 esac
480
481 APACHE_SUBST(DTRACE)
482
483 APR_CHECK_APR_DEFINE(APR_HAVE_IPV6)
484
485 AC_ARG_ENABLE(v4-mapped,APACHE_HELP_STRING(--enable-v4-mapped,Allow IPv6 sockets to handle IPv4 connections),
486
487   v4mapped=$enableval
488 ],
489 [
490     case $host in
491     *freebsd5*|*netbsd*|*openbsd*)
492         v4mapped=no
493         ;;
494     *)
495         v4mapped=yes
496         ;;
497 esac
498 ])
499
500 if test $v4mapped = "yes" -a $ac_cv_define_APR_HAVE_IPV6 = "yes"; then
501     AC_DEFINE(AP_ENABLE_V4_MAPPED, 1,
502               [Allow IPv4 connections on IPv6 listening sockets])
503 fi
504
505 AC_ARG_ENABLE(exception-hook,APACHE_HELP_STRING(--enable-exception-hook,Enable fatal exception hook),
506 [
507     AC_DEFINE(AP_ENABLE_EXCEPTION_HOOK, 1,
508               [Allow modules to run hook after a fatal exception])
509 ])dnl
510
511 AC_ARG_ENABLE(maintainer-mode,APACHE_HELP_STRING(--enable-maintainer-mode,Turn on debugging and compile time warnings),
512 [
513   APR_ADDTO(CPPFLAGS, -DAP_DEBUG)
514 ])dnl
515
516 dnl Conditionally enable PIE support for GNU toolchains.
517 AC_ARG_ENABLE(pie,APACHE_HELP_STRING(--enable-pie,Build httpd as a Position Independent Executable))
518 if test "$enable_pie" = "yes"; then
519    AC_CACHE_CHECK([whether $CC accepts PIE flags], [ap_cv_cc_pie], [
520      save_CFLAGS=$CFLAGS
521      save_LDFLAGS=$LDFLAGS
522      CFLAGS="$CFLAGS -fPIE"
523      LDFLAGS="$LDFLAGS -pie"
524      AC_TRY_RUN([static int foo[30000]; int main () { return 0; }],
525       [ap_cv_cc_pie=yes], [ap_cv_cc_pie=no], [ap_cv_cc_pie=yes])
526      CFLAGS=$save_CFLAGS
527      LDFLAGS=$save_LDFLAGS
528    ])
529    if test "$ap_cv_cc_pie" = "yes"; then
530      PICFLAGS="-fPIE"
531      PILDFLAGS="-pie"
532    else
533      AC_ERROR([--enable-pie requested but $CC failed using PIE flags])
534    fi
535 fi
536 AC_SUBST(PICFLAGS)
537 AC_SUBST(PILDFLAGS)
538
539 prefix="$orig_prefix"
540 APACHE_ENABLE_MODULES
541
542 dnl reading config stubs
543 esyscmd(./build/config-stubs .)
544
545 APACHE_SUBST(progname)
546 APACHE_SUBST(MPM_LIB)
547 APACHE_SUBST(OS)
548 APACHE_SUBST(OS_DIR)
549 APACHE_SUBST(BUILTIN_LIBS)
550 APACHE_SUBST(SHLIBPATH_VAR)
551 APACHE_SUBST(OS_SPECIFIC_VARS)
552
553 PRE_SHARED_CMDS='echo ""'
554 POST_SHARED_CMDS='echo ""'
555
556 dnl apache_need_shared tells us if Apache modules are being built as DSOs
557
558 if test "$apache_need_shared" = "yes"; then
559   if test -f $ac_aux_dir/ltconfig; then
560     $SHELL $ac_aux_dir/ltconfig --output=shlibtool --disable-static --srcdir=$ac_aux_dir --cache-file=./config.cache $ac_aux_dir/ltmain.sh
561   fi
562   shared_build="shared-build"
563 fi
564
565 dnl enable_so tells us if *any* modules can be built as DSOs
566
567 if test "$enable_so" = "yes"; then
568   case $host in
569     *-ibm-aix*)
570       HTTPD_LDFLAGS="$HTTPD_LDFLAGS -Wl,-uXML_Parse -Wl,-bE:$abs_builddir/server/httpd.exp"
571       SH_LDFLAGS="$SH_LDFLAGS \$(EXTRA_LDFLAGS) \$(EXTRA_LIBS)"
572       UTIL_LDFLAGS="$UTIL_LDFLAGS -Wl,-uXML_Parse"
573       ;;
574     *beos)
575       SH_LDFLAGS='$(top_builddir)/_APP_'
576       PRE_SHARED_CMDS='ln -s $(top_builddir)/httpd $(top_builddir)/_APP_'
577       POST_SHARED_CMDS='rm $(top_builddir)/_APP_'
578       ;;
579     *os390)
580       HTTPD_LDFLAGS="$HTTPD_LDFLAGS --main=$abs_srcdir/server/main.o --core-dll=$abs_srcdir/apachecore.dll"
581       SH_LDFLAGS="$SH_LDFLAGS --core-dll=$abs_srcdir/apachecore.dll"
582   esac
583   MOD_SO_ENABLED=yes
584 fi
585 AC_SUBST(MOD_SO_ENABLED)
586
587 APACHE_SUBST(PRE_SHARED_CMDS)
588 APACHE_SUBST(POST_SHARED_CMDS)
589 APACHE_SUBST(shared_build)
590
591 AC_ARG_WITH(program-name,
592 APACHE_HELP_STRING(--with-program-name,alternate executable name),[
593   progname="$withval" ], [
594   progname="httpd"] )
595
596 # SuExec parameters
597 AC_ARG_WITH(suexec-bin,
598 APACHE_HELP_STRING(--with-suexec-bin,Path to suexec binary),[
599   AC_DEFINE_UNQUOTED(SUEXEC_BIN, "$withval", [Path to suexec binary] )
600 ] )
601
602 AC_ARG_WITH(suexec-caller,
603 APACHE_HELP_STRING(--with-suexec-caller,User allowed to call SuExec),[
604   AC_DEFINE_UNQUOTED(AP_HTTPD_USER, "$withval", [User allowed to call SuExec] ) ] )
605
606 AC_ARG_WITH(suexec-userdir,
607 APACHE_HELP_STRING(--with-suexec-userdir,User subdirectory),[
608   AC_DEFINE_UNQUOTED(AP_USERDIR_SUFFIX, "$withval", [User subdirectory] ) ] )
609
610 AC_ARG_WITH(suexec-docroot,
611 APACHE_HELP_STRING(--with-suexec-docroot,SuExec root directory),[
612   AC_DEFINE_UNQUOTED(AP_DOC_ROOT, "$withval", [SuExec root directory] ) ] )
613
614 AC_ARG_WITH(suexec-uidmin,
615 APACHE_HELP_STRING(--with-suexec-uidmin,Minimal allowed UID),[
616   AC_DEFINE_UNQUOTED(AP_UID_MIN, $withval, [Minimum allowed UID] ) ] )
617
618 AC_ARG_WITH(suexec-gidmin,
619 APACHE_HELP_STRING(--with-suexec-gidmin,Minimal allowed GID),[
620   AC_DEFINE_UNQUOTED(AP_GID_MIN, $withval, [Minimum allowed GID] ) ] )
621
622 AC_ARG_WITH(suexec-logfile,
623 APACHE_HELP_STRING(--with-suexec-logfile,Set the logfile),[
624   AC_DEFINE_UNQUOTED(AP_LOG_EXEC, "$withval", [SuExec log file] ) ] )
625
626 AC_ARG_WITH(suexec-safepath,
627 APACHE_HELP_STRING(--with-suexec-safepath,Set the safepath),[
628   AC_DEFINE_UNQUOTED(AP_SAFE_PATH, "$withval", [safe shell path for SuExec] ) ] )
629
630 AC_ARG_WITH(suexec-umask,
631 APACHE_HELP_STRING(--with-suexec-umask,umask for suexec'd process),[
632   AC_DEFINE_UNQUOTED(AP_SUEXEC_UMASK, 0$withval, [umask for suexec'd process] ) ] )
633
634 dnl APR should go after the other libs, so the right symbols can be picked up
635 AP_LIBS="$AP_LIBS `$apu_config --avoid-ldap --link-libtool --libs`"
636 AP_LIBS="$AP_LIBS `$apr_config --link-libtool --libs`" 
637 APACHE_SUBST(AP_LIBS)
638 APACHE_SUBST(AP_BUILD_SRCLIB_DIRS)
639 APACHE_SUBST(AP_CLEAN_SRCLIB_DIRS)
640
641 AC_DEFINE(AP_USING_AUTOCONF, 1,
642                 [Using autoconf to configure Apache])
643
644 if test "$SINGLE_LISTEN_UNSERIALIZED_ACCEPT" = "1"; then
645     AC_DEFINE(SINGLE_LISTEN_UNSERIALIZED_ACCEPT, 1, 
646               [This platform doesn't suffer from the thundering herd problem])
647 fi
648
649 if test "$AP_NONBLOCK_WHEN_MULTI_LISTEN" = "1"; then
650     AC_DEFINE(AP_NONBLOCK_WHEN_MULTI_LISTEN, 1, 
651               [Listening sockets are non-blocking when there are more than 1])
652 fi
653
654
655 APACHE_FAST_OUTPUT(Makefile modules/Makefile srclib/Makefile) 
656 APACHE_FAST_OUTPUT(os/Makefile server/Makefile)
657 APACHE_FAST_OUTPUT(support/Makefile)
658
659 if test -d ./test; then
660     APACHE_FAST_OUTPUT(test/Makefile)
661 fi
662
663 dnl ## Finalize the variables
664 echo $ac_n "${nl}Restore user-defined environment settings...${nl}"
665
666 APR_RESTORE_THE_ENVIRONMENT(CPPFLAGS, EXTRA_)
667 APR_RESTORE_THE_ENVIRONMENT(CFLAGS, EXTRA_)
668 APR_RESTORE_THE_ENVIRONMENT(CXXFLAGS, EXTRA_)
669 APR_RESTORE_THE_ENVIRONMENT(LDFLAGS, EXTRA_)
670 APR_RESTORE_THE_ENVIRONMENT(LIBS, EXTRA_)
671 APR_RESTORE_THE_ENVIRONMENT(INCLUDES, EXTRA_)
672
673 echo $ac_n "${nl}Construct makefiles and header files...${nl}"
674
675 APACHE_GEN_CONFIG_VARS
676
677 dnl ## Build modules.c
678 rm -f modules.c
679 echo $MODLIST | $AWK -f $srcdir/build/build-modules-c.awk > modules.c
680
681 APR_EXPAND_VAR(ap_prefix, $prefix)
682 AC_DEFINE_UNQUOTED(HTTPD_ROOT, "${ap_prefix}",
683         [Root directory of the Apache install area])
684 AC_DEFINE_UNQUOTED(SERVER_CONFIG_FILE, "${rel_sysconfdir}/${progname}.conf",
685         [Location of the config file, relative to the Apache root directory])
686 AC_DEFINE_UNQUOTED(AP_TYPES_CONFIG_FILE, "${rel_sysconfdir}/mime.types",
687         [Location of the MIME types config file, relative to the Apache root directory])
688 AC_DEFINE_UNQUOTED(APACHE_MPM_DIR, "$MPM_DIR",
689         [Location of the source for the current MPM])
690
691 perlbin=`$ac_aux_dir/PrintPath perl`
692 if test "x$perlbin" = "x"; then
693     perlbin="/replace/with/path/to/perl/interpreter"
694 fi
695 AC_SUBST(perlbin)
696
697 dnl If we are running on BSD/OS, we need to use the BSD .include syntax.
698
699 BSD_MAKEFILE=no
700 ap_make_include=include
701 ap_make_delimiter=' '
702 case $host in
703 *bsdi*)
704     # Check whether they've installed GNU make
705     if make --version > /dev/null 2>&1; then
706         true
707     else
708         BSD_MAKEFILE=yes
709         ap_make_include=.include
710         ap_make_delimiter='"'
711     fi
712     ;;
713 esac
714 AC_SUBST(ap_make_include)
715 AC_SUBST(ap_make_delimiter)
716
717 dnl Ensure that docs/conf is created.
718 test -d docs/conf||$mkdir_p docs/conf
719
720 dnl Ensure that the httpd version is included
721 HTTPD_VERSION=`$abs_srcdir/build/get-version.sh all $abs_srcdir/include/ap_release.h AP_SERVER`
722 AC_SUBST(HTTPD_VERSION)
723
724 AC_OUTPUT($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],[
725   APACHE_GEN_MAKEFILES
726 ])
727
728 case $MPM_SUBDIR_NAME in
729 *experimental*)
730     echo ""
731     echo ""
732     echo "============================================================"
733     echo "    WARNING: THE '${APACHE_MPM}' MPM IS EXPERIMENTAL"
734     echo "============================================================"
735     echo " The selected MPM might not be fully functional!"
736     echo ""
737     echo " Development of this MPM is not complete. Do not use this"
738     echo " MPM unless you are a programmer willing to help fix it."
739     echo ""
740     echo " If you are looking for a stable server, you should not use"
741     echo " the '${APACHE_MPM}' MPM until it is moved out of experimental."
742     echo "============================================================"
743     echo ""
744     echo ""
745     ;;
746 esac