2 AC_COPYRIGHT([Copyright 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2007, 2008, 2009
3 Massachusetts Institute of Technology.
6 define([K5_TOPDIR],[.])dnl
8 AC_DEFUN(V5_SET_TOPDIR,[dnl
9 ac_reltopdir="K5_TOPDIR"
10 if test ! -r "$srcdir/K5_TOPDIR/aclocal.m4"; then
11 AC_MSG_ERROR([Configure could not determine the relative topdir])
13 ac_topdir=$srcdir/$ac_reltopdir
14 ac_config_fragdir=$ac_reltopdir/config
15 # echo "Looking for $srcdir/$ac_config_fragdir"
16 if test -d "$srcdir/$ac_config_fragdir"; then
17 AC_CONFIG_AUX_DIR(K5_TOPDIR/config)
19 AC_MSG_ERROR([can not find config/ directory in $ac_reltopdir])
25 pushdef([x],esyscmd([sed -n 's/#define \([A-Z0-9_]*\)[ \t]*\(.*\)/\1=\2/p' < ]K5_TOPDIR/patchlevel.h))
26 define([PL_KRB5_MAJOR_RELEASE],regexp(x,[KRB5_MAJOR_RELEASE=\(.*\)],[\1]))
27 ifelse(PL_KRB5_MAJOR_RELEASE,,[errprint([Can't determine KRB5_MAJOR_RELEASE value from patchlevel.h.
28 ]) m4exit(1) dnl sometimes that does not work?
30 define([PL_KRB5_MINOR_RELEASE],regexp(x,[KRB5_MINOR_RELEASE=\(.*\)],[\1]))
31 ifelse(PL_KRB5_MINOR_RELEASE,,[errprint([Can't determine KRB5_MINOR_RELEASE value from patchlevel.h.
32 ]) m4exit(1) dnl sometimes that does not work?
34 define([PL_KRB5_PATCHLEVEL],regexp(x,[KRB5_PATCHLEVEL=\(.*\)],[\1]))
35 ifelse(PL_KRB5_PATCHLEVEL,,[errprint([Can't determine KRB5_PATCHLEVEL value from patchlevel.h.
36 ]) m4exit(1) dnl sometimes that does not work?
38 define([PL_KRB5_RELTAIL],regexp(x,[KRB5_RELTAIL="\(.*\)"],[\1]))
39 dnl RELTAIL is allowed to not be defined.
41 define([K5_VERSION],PL_KRB5_MAJOR_RELEASE.PL_KRB5_MINOR_RELEASE[]ifelse(PL_KRB5_PATCHLEVEL,0,,.PL_KRB5_PATCHLEVEL)ifelse(PL_KRB5_RELTAIL,,,-PL_KRB5_RELTAIL))
42 define([K5_BUGADDR],krb5-bugs@mit.edu)
43 define([K5_AC_INIT],[AC_INIT(Kerberos 5, K5_VERSION, K5_BUGADDR, krb5)
47 dnl drop in standard rules for all configure files -- CONFIG_RULES
49 AC_DEFUN(CONFIG_RULES,[dnl
50 AC_REQUIRE([V5_SET_TOPDIR]) dnl
53 dnl Consider using AC_USE_SYSTEM_EXTENSIONS when we require autoconf
54 dnl 2.59c or later, but be sure to test on Solaris first.
55 AC_DEFINE([_GNU_SOURCE], 1, [Define to enable extensions in glibc])
56 AC_DEFINE([__STDC_WANT_LIB_EXT1__], 1, [Define to enable C11 extensions])
60 if test -z "$LD" ; then LD=$CC; fi
61 AC_ARG_VAR(LD,[linker command [CC]])
66 dnl allow stuff in tree to access deprecated stuff for now
67 dnl AC_DEFINE([KRB5_DEPRECATED], 1, [Define only if building in-tree])
71 KRB5_AC_MAINTAINER_MODE dnl
74 dnl This identifies the top of the source tree relative to the directory
75 dnl in which the configure file lives.
77 CONFIG_RELTOPDIR=$ac_reltopdir
78 AC_SUBST(CONFIG_RELTOPDIR)
79 lib_frag=$srcdir/$ac_config_fragdir/lib.in
80 AC_SUBST_FILE(lib_frag)
81 libobj_frag=$srcdir/$ac_config_fragdir/libobj.in
82 AC_SUBST_FILE(libobj_frag)
83 libnover_frag=$srcdir/$ac_config_fragdir/libnover.in
84 AC_SUBST_FILE(libnover_frag)
85 libpriv_frag=$srcdir/$ac_config_fragdir/libpriv.in
86 AC_SUBST_FILE(libpriv_frag)
87 libnodeps_frag=$srcdir/$ac_config_fragdir/libnodeps.in
88 AC_SUBST_FILE(libnodeps_frag)
90 KRB5_AC_PRAGMA_WEAK_REF
94 KRB5_AC_ENABLE_THREADS
96 KRB5_AC_KEYRING_CCACHE
97 KRB5_AC_PERSISTENT_KEYRING
100 dnl Maintainer mode, akin to what automake provides, 'cept we don't
101 dnl want to use automake right now.
102 AC_DEFUN([KRB5_AC_MAINTAINER_MODE],
103 [AC_ARG_ENABLE([maintainer-mode],
104 AC_HELP_STRING([--enable-maintainer-mode],[enable rebuilding of source files, Makefiles, etc]),
105 USE_MAINTAINER_MODE=$enableval,
106 USE_MAINTAINER_MODE=no)
107 if test "$USE_MAINTAINER_MODE" = yes; then
108 MAINTAINER_MODE_TRUE=
109 MAINTAINER_MODE_FALSE='#'
110 AC_MSG_NOTICE(enabling maintainer mode)
112 MAINTAINER_MODE_TRUE='#'
113 MAINTAINER_MODE_FALSE=
115 MAINT=$MAINTAINER_MODE_TRUE
116 AC_SUBST(MAINTAINER_MODE_TRUE)
117 AC_SUBST(MAINTAINER_MODE_FALSE)
122 AC_DEFUN([KRB5_AC_INITFINI],[
123 dnl Do we want initialization at load time?
124 AC_ARG_ENABLE([delayed-initialization],
125 AC_HELP_STRING([--disable-delayed-initialization],initialize library code when loaded @<:@delay until first use@:>@), , enable_delayed_initialization=yes)
126 case "$enable_delayed_initialization" in
128 AC_DEFINE(DELAY_INITIALIZER,1,[Define if library initialization should be delayed until first use]) ;;
130 *) AC_MSG_ERROR(invalid option $enable_delayed_initialization for delayed-initialization) ;;
132 dnl We always want finalization at unload time.
134 dnl Can we do things through gcc?
136 dnl How about with the linker?
137 if test -z "$use_linker_init_option" ; then
138 AC_MSG_ERROR(ran INITFINI before checking shlib.conf?)
140 if test "$use_linker_init_option" = yes; then
141 AC_DEFINE(USE_LINKER_INIT_OPTION,1,[Define if link-time options for library initialization will be used])
143 if test "$use_linker_fini_option" = yes; then
144 AC_DEFINE(USE_LINKER_FINI_OPTION,1,[Define if link-time options for library finalization will be used])
149 AC_DEFUN([KRB5_AC_FIND_DLOPEN],[
152 AC_SEARCH_LIBS(dlopen, dl, [
153 if test "$ac_cv_search_dlopen" != "none required"; then
154 DL_LIB=$ac_cv_search_dlopen
157 AC_DEFINE(USE_DLOPEN,1,[Define if dlopen should be used])])
163 AC_DEFUN([KRB5_AC_ENABLE_THREADS],[
164 AC_ARG_ENABLE([thread-support],
165 AC_HELP_STRING([--disable-thread-support],don't enable thread support @<:@enabled@:>@), , enable_thread_support=yes)
166 if test "$enable_thread_support" = yes ; then
167 AC_MSG_NOTICE(enabling thread support)
168 AC_DEFINE(ENABLE_THREADS,1,[Define if thread support enabled])
170 dnl Maybe this should be inside the conditional above? Doesn't cache....
171 if test "$enable_thread_support" = yes; then
172 ACX_PTHREAD(,[AC_MSG_ERROR([cannot determine options for enabling thread support; try --disable-thread-support])])
173 AC_MSG_NOTICE(PTHREAD_CC = $PTHREAD_CC)
174 AC_MSG_NOTICE(PTHREAD_CFLAGS = $PTHREAD_CFLAGS)
175 AC_MSG_NOTICE(PTHREAD_LIBS = $PTHREAD_LIBS)
176 dnl Not really needed -- if pthread.h isn't found, ACX_PTHREAD will fail.
177 dnl AC_CHECK_HEADERS(pthread.h)
178 # AIX and Tru64 don't support weak references, and don't have
179 # stub versions of the pthread code in libc.
182 # On these platforms, we'll always pull in the thread support.
183 LIBS="$LIBS $PTHREAD_LIBS"
184 CFLAGS="$CFLAGS $PTHREAD_CFLAGS"
185 # We don't need to sometimes add the flags we've just folded in...
190 # These are the flags that "gcc -pthread" adds. But we don't
191 # want "-pthread" because that has link-time effects, and we
192 # don't exclude CFLAGS when linking. *sigh*
193 PTHREAD_CFLAGS="-D_REENTRANT -D_THREAD_SAFE -D_POSIX_C_SOURCE=199506L"
196 # On Solaris 10 with gcc 3.4.3, the autoconf archive macro doesn't
197 # get the right result. XXX What about Solaris 9 and earlier?
198 if test "$GCC" = yes ; then
199 PTHREAD_CFLAGS="-D_REENTRANT -pthreads"
203 # On Solaris 10 with gcc 3.4.3, the autoconf archive macro doesn't
204 # get the right result.
205 if test "$GCC" = yes ; then
206 PTHREAD_CFLAGS="-D_REENTRANT -pthreads"
208 # On Solaris 10, the thread support is always available in libc.
209 AC_DEFINE(NO_WEAK_PTHREADS,1,[Define if references to pthread routines should be non-weak.])
219 AC_SUBST(THREAD_SUPPORT)
220 dnl We want to know where these routines live, so on systems with weak
221 dnl reference support we can figure out whether or not the pthread library
222 dnl has been linked in.
223 dnl If we don't add any libraries for thread support, don't bother.
224 AC_CHECK_FUNCS(pthread_once pthread_rwlock_init)
226 test "$PTHREAD_CC" != "" && test "$ac_cv_c_compiler_gnu" = no && CC=$PTHREAD_CC
228 # On Solaris, -pthreads is added to CFLAGS, no extra explicit libraries.
229 CFLAGS="$CFLAGS $PTHREAD_CFLAGS"
230 AC_SUBST(PTHREAD_CFLAGS)
232 LIBS="$PTHREAD_LIBS $LIBS"
233 AC_MSG_NOTICE(rechecking with PTHREAD_... options)
234 AC_CHECK_LIB(c, pthread_rwlock_init,
235 [AC_DEFINE(HAVE_PTHREAD_RWLOCK_INIT_IN_THREAD_LIB,1,[Define if pthread_rwlock_init is provided in the thread library.])])
241 dnl This is somewhat gross and should go away when the build system
242 dnl is revamped. -- tlyu
243 dnl DECLARE_SYS_ERRLIST - check for sys_errlist in libc
245 AC_DEFUN([DECLARE_SYS_ERRLIST],
246 [AC_CACHE_CHECK([for sys_errlist declaration], krb5_cv_decl_sys_errlist,
247 [AC_TRY_COMPILE([#include <stdio.h>
248 #include <errno.h>], [1+sys_nerr;],
249 krb5_cv_decl_sys_errlist=yes, krb5_cv_decl_sys_errlist=no)])
250 # assume sys_nerr won't be declared w/o being in libc
251 if test $krb5_cv_decl_sys_errlist = yes; then
252 AC_DEFINE(SYS_ERRLIST_DECLARED,1,[Define if sys_errlist is defined in errno.h])
253 AC_DEFINE(HAVE_SYS_ERRLIST,1,[Define if sys_errlist in libc])
255 # This means that sys_errlist is not declared in errno.h, but may still
257 AC_CACHE_CHECK([for sys_errlist in libc], krb5_cv_var_sys_errlist,
258 [AC_TRY_LINK([extern int sys_nerr;], [if (1+sys_nerr < 0) return 1;],
259 krb5_cv_var_sys_errlist=yes, krb5_cv_var_sys_errlist=no;)])
260 if test $krb5_cv_var_sys_errlist = yes; then
261 AC_DEFINE(HAVE_SYS_ERRLIST,1,[Define if sys_errlist in libc])
262 # Do this cruft for backwards compatibility for now.
263 AC_DEFINE(NEED_SYS_ERRLIST,1,[Define if need to declare sys_errlist])
265 AC_MSG_WARN([sys_errlist is neither in errno.h nor in libc])
270 dnl check for sigmask/sigprocmask -- CHECK_SIGPROCMASK
272 AC_DEFUN(CHECK_SIGPROCMASK,[
273 AC_MSG_CHECKING([for use of sigprocmask])
274 AC_CACHE_VAL(krb5_cv_func_sigprocmask_use,
275 [AC_TRY_LINK([#include <signal.h>], [sigprocmask(SIG_SETMASK,0,0);],
276 krb5_cv_func_sigprocmask_use=yes,
277 AC_TRY_LINK([#include <signal.h>], [sigmask(1);],
278 krb5_cv_func_sigprocmask_use=no, krb5_cv_func_sigprocmask_use=yes))])
279 AC_MSG_RESULT($krb5_cv_func_sigprocmask_use)
280 if test $krb5_cv_func_sigprocmask_use = yes; then
281 AC_DEFINE(USE_SIGPROCMASK,1,[Define if sigprocmask should be used])
285 AC_DEFUN(AC_PROG_ARCHIVE, [AC_CHECK_PROG(ARCHIVE, ar, ar cqv, false)])dnl
286 AC_DEFUN(AC_PROG_ARCHIVE_ADD, [AC_CHECK_PROG(ARADD, ar, ar cruv, false)])dnl
288 dnl check for <dirent.h> -- CHECK_DIRENT
289 dnl (may need to be more complex later)
291 AC_DEFUN(CHECK_DIRENT,[
292 AC_CHECK_HEADER(dirent.h,AC_DEFINE(USE_DIRENT_H,1,[Define if you have dirent.h functionality]))])dnl
294 dnl check if union wait is defined, or if WAIT_USES_INT -- CHECK_WAIT_TYPE
296 AC_DEFUN(CHECK_WAIT_TYPE,[
297 AC_MSG_CHECKING([if argument to wait is int *])
298 AC_CACHE_VAL(krb5_cv_struct_wait,
299 dnl Test for prototype clash - if there is none - then assume int * works
300 [AC_TRY_COMPILE([#include <sys/types.h>
301 #include <sys/wait.h>
302 extern pid_t wait(int *);],[], krb5_cv_struct_wait=no,dnl
303 dnl Else fallback on old stuff
305 [#include <sys/wait.h>], [union wait i;
310 krb5_cv_struct_wait=yes, krb5_cv_struct_wait=no)])])
311 AC_MSG_RESULT($krb5_cv_struct_wait)
312 if test $krb5_cv_struct_wait = no; then
313 AC_DEFINE(WAIT_USES_INT,1,[Define if wait takes int as a argument])
317 dnl check for POSIX signal handling -- CHECK_SIGNALS
319 AC_DEFUN(CHECK_SIGNALS,[
320 AC_CHECK_FUNC(sigprocmask,
321 AC_MSG_CHECKING(for sigset_t and POSIX_SIGNALS)
322 AC_CACHE_VAL(krb5_cv_type_sigset_t,
324 [#include <signal.h>],
326 krb5_cv_type_sigset_t=yes, krb5_cv_type_sigset_t=no)])
327 AC_MSG_RESULT($krb5_cv_type_sigset_t)
328 if test $krb5_cv_type_sigset_t = yes; then
329 AC_DEFINE(POSIX_SIGNALS,1,[Define if POSIX signal handling is used])
333 dnl check for signal type
335 dnl AC_RETSIGTYPE isn't quite right, but almost.
336 AC_DEFUN(KRB5_SIGTYPE,[
337 AC_MSG_CHECKING([POSIX signal handlers])
338 AC_CACHE_VAL(krb5_cv_has_posix_signals,
340 [#include <sys/types.h>
345 extern void (*signal ()) ();], [],
346 krb5_cv_has_posix_signals=yes, krb5_cv_has_posix_signals=no)])
347 AC_MSG_RESULT($krb5_cv_has_posix_signals)
348 if test $krb5_cv_has_posix_signals = yes; then
350 AC_DEFINE(POSIX_SIGTYPE, 1, [Define if POSIX signal handlers are used])
352 if test $ac_cv_type_signal = void; then
358 AC_DEFINE_UNQUOTED(krb5_sigtype, $stype, [Define krb5_sigtype to type of signal handler])dnl
361 dnl check for POSIX setjmp/longjmp -- CHECK_SETJMP
363 AC_DEFUN(CHECK_SETJMP,[
364 AC_CHECK_FUNC(sigsetjmp,
365 AC_MSG_CHECKING(for sigjmp_buf)
366 AC_CACHE_VAL(krb5_cv_struct_sigjmp_buf,
368 [#include <setjmp.h>],[sigjmp_buf x],
369 krb5_cv_struct_sigjmp_buf=yes,krb5_cv_struct_sigjmp_buf=no)])
370 AC_MSG_RESULT($krb5_cv_struct_sigjmp_buf)
371 if test $krb5_cv_struct_sigjmp_buf = yes; then
372 AC_DEFINE(POSIX_SETJMP,1,[Define if setjmp indicates POSIX interface])
376 dnl Check for IPv6 compile-time support.
378 AC_DEFUN(KRB5_AC_INET6,[
379 AC_CHECK_HEADERS(sys/types.h sys/socket.h netinet/in.h netdb.h)
380 AC_CHECK_FUNCS(inet_ntop inet_pton getnameinfo)
381 dnl getaddrinfo test needs netdb.h, for proper compilation on alpha
382 dnl under OSF/1^H^H^H^H^HDigital^H^H^H^H^H^H^HTru64 UNIX, where it's
384 AC_MSG_CHECKING(for getaddrinfo)
385 AC_CACHE_VAL(ac_cv_func_getaddrinfo,
386 [AC_TRY_LINK([#ifdef HAVE_NETDB_H
390 getaddrinfo("kerberos.mit.edu", "echo", 0, &ai);
391 ], ac_cv_func_getaddrinfo=yes, ac_cv_func_getaddrinfo=no)])
392 AC_MSG_RESULT($ac_cv_func_getaddrinfo)
393 if test $ac_cv_func_getaddrinfo = yes; then
394 AC_DEFINE(HAVE_GETADDRINFO,1,[Define if you have the getaddrinfo function])
397 AC_REQUIRE([KRB5_SOCKADDR_SA_LEN])dnl
398 AC_MSG_CHECKING(for IPv6 compile-time support without -DINET6)
399 AC_CACHE_VAL(krb5_cv_inet6,[
400 if test "$ac_cv_func_inet_ntop" != "yes" ; then
404 #ifdef HAVE_SYS_TYPES_H
405 #include <sys/types.h>
407 #include <sys/socket.h>
408 #include <netinet/in.h>
411 struct sockaddr_in6 in;
413 IN6_IS_ADDR_LINKLOCAL (&in.sin6_addr);
414 ],krb5_cv_inet6=yes,krb5_cv_inet6=no)])
416 AC_MSG_RESULT($krb5_cv_inet6)
417 if test "$krb5_cv_inet6" = no && test "$ac_cv_func_inet_ntop" = yes; then
418 AC_MSG_CHECKING(for IPv6 compile-time support with -DINET6)
419 AC_CACHE_VAL(krb5_cv_inet6_with_dinet6,[
423 #ifdef HAVE_SYS_TYPES_H
424 #include <sys/types.h>
426 #include <sys/socket.h>
427 #include <netinet/in.h>
430 struct sockaddr_in6 in;
432 IN6_IS_ADDR_LINKLOCAL (&in.sin6_addr);
433 ],krb5_cv_inet6_with_dinet6=yes,krb5_cv_inet6_with_dinet6=no)
435 AC_MSG_RESULT($krb5_cv_inet6_with_dinet6)
437 if test $krb5_cv_inet6 = yes || test "$krb5_cv_inet6_with_dinet6" = yes; then
438 if test "$krb5_cv_inet6_with_dinet6" = yes; then
439 AC_DEFINE(INET6,1,[May need to be defined to enable IPv6 support, for example on IRIX])
444 AC_DEFUN(KRB5_AC_CHECK_FOR_CFLAGS,[
445 AC_BEFORE([$0],[AC_PROG_CC])
446 AC_BEFORE([$0],[AC_PROG_CXX])
447 krb5_ac_cflags_set=${CFLAGS+set}
448 krb5_ac_cxxflags_set=${CXXFLAGS+set}
449 krb5_ac_warn_cflags_set=${WARN_CFLAGS+set}
450 krb5_ac_warn_cxxflags_set=${WARN_CXXFLAGS+set}
453 AC_DEFUN(TRY_WARN_CC_FLAG,[dnl
454 cachevar=`echo "krb5_cv_cc_flag_$1" | sed -e s/=/_eq_/g -e s/-/_dash_/g -e s/[[^a-zA-Z0-9_]]/_/g`
455 AC_CACHE_CHECK([if C compiler supports $1], [$cachevar],
456 [# first try without, then with
457 AC_TRY_COMPILE([], 1;,
458 [old_cflags="$CFLAGS"
460 AC_TRY_COMPILE([], 1;, eval $cachevar=yes, eval $cachevar=no)
461 CFLAGS="$old_cflags"],
462 [AC_MSG_ERROR(compiling simple test program with $CFLAGS failed)])])
463 if eval test '"${'$cachevar'}"' = yes; then
464 WARN_CFLAGS="$WARN_CFLAGS $1"
466 eval flag_supported='${'$cachevar'}'
469 AC_DEFUN(WITH_CC,[dnl
470 AC_REQUIRE([KRB5_AC_CHECK_FOR_CFLAGS])dnl
471 AC_REQUIRE([AC_PROG_CC])dnl
472 AC_REQUIRE([AC_PROG_CXX])dnl
473 if test $ac_cv_c_compiler_gnu = yes ; then
478 AC_CACHE_CHECK([for GNU linker], krb5_cv_prog_gnu_ld,
479 [krb5_cv_prog_gnu_ld=no
480 if test "$GCC" = yes; then
481 if AC_TRY_COMMAND([$CC -Wl,-v 2>&1 dnl
482 | grep "GNU ld" > /dev/null]); then
483 krb5_cv_prog_gnu_ld=yes
486 AC_ARG_WITH([size-optimizations],
487 [ --with-size-optimizations enable a few optimizations to reduce code size
488 possibly at some run-time cost],
491 if test "$withval" = yes; then
492 AC_DEFINE(CONFIG_SMALL,1,[Define to reduce code size even if it means more cpu usage])
494 # -Wno-long-long, if needed, for k5-platform.h without inttypes.h etc.
495 extra_gcc_warn_opts="-Wall -Wcast-align -Wshadow"
496 # -Wmissing-prototypes
497 if test "$GCC" = yes ; then
498 # Putting this here means we get -Os after -O2, which works.
499 if test "$with_size_optimizations" = yes && test "x$krb5_ac_cflags_set" != xset; then
500 AC_MSG_NOTICE(adding -Os optimization option)
502 "-g -O2") CFLAGS="-g -Os" ;;
503 "-O2") CFLAGS="-Os" ;;
504 *) CFLAGS="$CFLAGS -Os" ;;
507 if test "x$krb5_ac_warn_cflags_set" = xset ; then
508 AC_MSG_NOTICE(not adding extra gcc warning flags because WARN_CFLAGS was set)
510 AC_MSG_NOTICE(adding extra warning flags for gcc)
511 WARN_CFLAGS="$WARN_CFLAGS $extra_gcc_warn_opts -Wmissing-prototypes"
512 if test "`uname -s`" = Darwin ; then
513 AC_MSG_NOTICE(skipping pedantic warnings on Darwin)
514 elif test "`uname -s`" = Linux ; then
515 AC_MSG_NOTICE(skipping pedantic warnings on Linux)
517 WARN_CFLAGS="$WARN_CFLAGS -pedantic"
519 if test "$ac_cv_cxx_compiler_gnu" = yes; then
520 if test "x$krb5_ac_warn_cxxflags_set" = xset ; then
521 AC_MSG_NOTICE(not adding extra g++ warnings because WARN_CXXFLAGS was set)
523 AC_MSG_NOTICE(adding extra warning flags for g++)
524 WARN_CXXFLAGS="$WARN_CXXFLAGS $extra_gcc_warn_opts"
527 # Currently, G++ does not support -Wno-format-zero-length.
528 TRY_WARN_CC_FLAG(-Wno-format-zero-length)
529 # Other flags here may not be supported on some versions of
530 # gcc that people want to use.
531 for flag in overflow strict-overflow missing-format-attribute missing-prototypes return-type missing-braces parentheses switch unused-function unused-label unused-variable unused-value unknown-pragmas sign-compare newline-eof error=uninitialized error=pointer-arith error=int-conversion error=incompatible-pointer-types error=discarded-qualifiers ; do
532 TRY_WARN_CC_FLAG(-W$flag)
534 # old-style-definition? generates many, many warnings
536 # Warnings that we'd like to turn into errors on versions of gcc
537 # that support promoting only specific warnings to errors, but
538 # we'll take as warnings on older compilers. (If such a warning
539 # is added after the -Werror=foo feature, you can just put
540 # error=foo in the above list, and skip the test for the
541 # warning-only form.) At least in some versions, -Werror= doesn't
542 # seem to make the conditions actual errors, but still issues
543 # warnings; I guess we'll take what we can get.
545 # We're currently targeting C89+, not C99, so disallow some
547 for flag in declaration-after-statement ; do
548 TRY_WARN_CC_FLAG(-Werror=$flag)
549 if test "$flag_supported" = no; then
550 TRY_WARN_CC_FLAG(-W$flag)
553 # We require function declarations now.
555 # In some compiler versions -- e.g., "gcc version 4.2.1 (Apple
556 # Inc. build 5664)" -- the -Werror- option works, but the -Werror=
557 # version doesn't cause implicitly declared functions to be
558 # flagged as errors. If neither works, -Wall implies
559 # -Wimplicit-function-declaration so don't bother.
560 TRY_WARN_CC_FLAG(-Werror-implicit-function-declaration)
561 if test "implicit-function-declaration_supported" = no; then
562 TRY_WARN_CC_FLAG(-Werror=implicit-function-declaration)
566 if test "`uname -s`" = Darwin ; then
567 # Someday this should be a feature test.
568 # One current (Jaguar = OS 10.2) problem:
569 # Archive library with foo.o undef sym X and bar.o common sym X,
570 # if foo.o is pulled in at link time, bar.o may not be, causing
571 # the linker to complain.
572 # Dynamic library problems too?
573 case "$CC $CFLAGS" in
574 *-fcommon*) ;; # why someone would do this, I don't know
575 *-fno-common*) ;; # okay, they're already doing the right thing
577 AC_MSG_NOTICE(disabling the use of common storage on Darwin)
578 CFLAGS="$CFLAGS -fno-common"
581 case "$LD $LDFLAGS" in
582 *-Wl,-search_paths_first*) ;;
583 *) LDFLAGS="${LDFLAGS} -Wl,-search_paths_first" ;;
587 if test "`uname -s`" = AIX ; then
588 # Using AIX but not GCC, assume native compiler.
589 # The native compiler appears not to give a nonzero exit
590 # status for certain classes of errors, like missing arguments
591 # in function calls. Let's try to fix that with -qhalt=e.
592 case "$CC $CFLAGS" in
595 CFLAGS="$CFLAGS -qhalt=e"
596 AC_MSG_NOTICE(adding -qhalt=e for better error reporting)
599 # Also, the optimizer isn't turned on by default, which means
600 # the static inline functions get left in random object files,
601 # leading to references to pthread_mutex_lock from anything that
602 # includes k5-int.h whether it uses threads or not.
603 case "$CC $CFLAGS" in
607 AC_MSG_NOTICE(adding -O for inline thread-support function elimination)
611 if test "`uname -s`" = SunOS ; then
612 # Using Solaris but not GCC, assume Sunsoft compiler.
613 # We have some error-out-on-warning options available.
614 # Sunsoft 12 compiler defaults to -xc99=all, it appears, so "inline"
615 # works, but it also means that declaration-in-code warnings won't
617 # -v -fd -errwarn=E_DECLARATION_IN_CODE ...
618 WARN_CFLAGS="-errtags=yes -errwarn=E_BAD_PTR_INT_COMBINATION,E_BAD_PTR_INT_COMB_ARG,E_PTR_TO_VOID_IN_ARITHMETIC,E_NO_IMPLICIT_DECL_ALLOWED,E_ATTRIBUTE_PARAM_UNDEFINED"
619 WARN_CXXFLAGS="-errtags=yes +w +w2 -xport64"
622 AC_SUBST(WARN_CFLAGS)
623 AC_SUBST(WARN_CXXFLAGS)
627 dnl check for yylineno -- HAVE_YYLINENO
629 AC_DEFUN(HAVE_YYLINENO,[dnl
630 AC_REQUIRE_CPP()AC_REQUIRE([AC_PROG_LEX])dnl
631 AC_MSG_CHECKING([for yylineno declaration])
632 AC_CACHE_VAL(krb5_cv_type_yylineno,
633 # some systems have yylineno, others don't...
635 %%' | ${LEX} -t > conftest.out
636 if egrep yylineno conftest.out >/dev/null 2>&1; then
637 krb5_cv_type_yylineno=yes
639 krb5_cv_type_yylineno=no
642 AC_MSG_RESULT($krb5_cv_type_yylineno)
643 if test $krb5_cv_type_yylineno = no; then
644 AC_DEFINE(NO_YYLINENO, 1, [Define if lex produes code with yylineno])
648 dnl K5_GEN_MAKEFILE([dir, [frags]])
650 AC_DEFUN(K5_GEN_MAKEFILE,[dnl
651 ifelse($1, ,[_K5_GEN_MAKEFILE(.,$2)],[_K5_GEN_MAKEFILE($1,$2)])
654 dnl _K5_GEN_MAKEFILE(dir, [frags])
655 dnl dir must be present in this case
656 dnl Note: Be careful in quoting.
657 dnl The ac_foreach generates the list of fragments to include
658 dnl or "" if $2 is empty
659 AC_DEFUN(_K5_GEN_MAKEFILE,[dnl
660 AC_CONFIG_FILES([$1/Makefile:$srcdir/]K5_TOPDIR[/config/pre.in:$1/Makefile.in:$1/deps:$srcdir/]K5_TOPDIR[/config/post.in])
663 dnl K5_GEN_FILE( <ac_output arguments> )
665 AC_DEFUN(K5_GEN_FILE,[AC_CONFIG_FILES($1)])dnl
668 dnl Note: Adds the variables to config.status for individual
669 dnl Makefile generation from config.status
670 AC_DEFUN(K5_AC_OUTPUT,[AC_OUTPUT])dnl
672 dnl V5_AC_OUTPUT_MAKEFILE
674 AC_DEFUN(V5_AC_OUTPUT_MAKEFILE,
675 [ifelse($1, , [_V5_AC_OUTPUT_MAKEFILE(.,$2)],[_V5_AC_OUTPUT_MAKEFILE($1,$2)])])
677 define(_V5_AC_OUTPUT_MAKEFILE,
678 [ifelse($2, , ,AC_CONFIG_FILES($2))
679 AC_FOREACH([DIR], [$1],dnl
680 [AC_CONFIG_FILES(DIR[/Makefile:$srcdir/]K5_TOPDIR[/config/pre.in:]DIR[/Makefile.in:]DIR[/deps:$srcdir/]K5_TOPDIR[/config/post.in])])
684 dnl KRB5_SOCKADDR_SA_LEN: define HAVE_SA_LEN if sockaddr contains the sa_len
687 AC_DEFUN([KRB5_SOCKADDR_SA_LEN],[ dnl
688 AC_CHECK_MEMBER(struct sockaddr.sa_len,
689 AC_DEFINE(HAVE_SA_LEN,1,[Define if struct sockaddr contains sa_len])
690 ,,[#include <sys/types.h>
691 #include <sys/socket.h>])])
696 AC_DEFUN(WITH_NETLIB,[
697 AC_ARG_WITH([netlib],
698 AC_HELP_STRING([--with-netlib=LIBS], use user defined resolver library),
699 [ if test "$withval" = yes -o "$withval" = no ; then
700 AC_MSG_RESULT("netlib will link with C library resolver only")
702 LIBS="$LIBS $withval"
703 AC_MSG_RESULT("netlib will use \'$withval\'")
710 AC_DEFUN(KRB5_AC_NEED_DAEMON, [
711 KRB5_NEED_PROTO([#ifdef HAVE_UNISTD_H
713 #endif],daemon,1)])dnl
716 dnl KRB5_AC_NEED_LIBGEN --- check if libgen needs to be linked in for
720 AC_DEFUN(KRB5_AC_NEED_LIBGEN,[
721 AC_REQUIRE([AC_PROG_CC])dnl
723 dnl regcomp is present but non-functional on Solaris 2.4
725 AC_MSG_CHECKING(for working regcomp)
726 AC_CACHE_VAL(ac_cv_func_regcomp,[
728 #include <sys/types.h>
730 regex_t x; regmatch_t m;
731 int main() { return regcomp(&x,"pat.*",0) || regexec(&x,"pattern",1,&m,0); }
732 ], ac_cv_func_regcomp=yes, ac_cv_func_regcomp=no, AC_MSG_ERROR([Cannot test regcomp when cross compiling]))])
733 AC_MSG_RESULT($ac_cv_func_regcomp)
734 test $ac_cv_func_regcomp = yes && AC_DEFINE(HAVE_REGCOMP,1,[Define if regcomp exists and functions])
736 dnl Check for the compile and step functions - only if regcomp is not available
738 if test $ac_cv_func_regcomp = no; then
741 dnl this will fail if there's no compile/step in -lgen, or if there's
742 dnl no -lgen. This is fine.
743 AC_CHECK_FUNCS(compile step)
746 dnl Set GEN_LIB if necessary
748 AC_CHECK_LIB(gen, compile, GEN_LIB=-lgen, GEN_LIB=)
753 dnl KRB5_AC_REGEX_FUNCS --- check for different regular expression
754 dnl support functions
756 AC_DEFUN(KRB5_AC_REGEX_FUNCS,[
757 AC_CHECK_FUNCS(re_comp re_exec regexec)
758 AC_REQUIRE([KRB5_AC_NEED_LIBGEN])dnl
761 dnl AC_KRB5_TCL_FIND_CONFIG (uses tcl_dir)
763 AC_DEFUN(AC_KRB5_TCL_FIND_CONFIG,[
764 AC_REQUIRE([KRB5_LIB_AUX])dnl
765 AC_MSG_CHECKING(for tclConfig.sh)
766 dnl On Debian, we might be given --with-tcl=/usr, or tclsh might
767 dnl point us to /usr/lib/tcl8.4; either way, we need to find
768 dnl /usr/lib/tcl8.4/tclConfig.sh.
769 dnl On NetBSD, we might be given --with-tcl=/usr/pkg, or tclsh
770 dnl might point us to /usr/pkg/lib/tcl8.4; we need to find
771 dnl /usr/pkg/lib/tclConfig.sh.
772 if test -r "$tcl_dir/lib/tclConfig.sh" ; then
773 tcl_conf="$tcl_dir/lib/tclConfig.sh"
774 elif test -r "$tcl_dir/tclConfig.sh" ; then
775 tcl_conf="$tcl_dir/tclConfig.sh"
776 elif test -r "$tcl_dir/../tclConfig.sh" ; then
777 tcl_conf="$tcl_dir/../tclConfig.sh"
781 changequote(<<,>>)dnl
782 for d in "$lib" "$lib"/tcl7.[0-9] "$lib"/tcl8.[0-9] ; do
783 if test -r "$d/tclConfig.sh" ; then
784 tcl_conf="$tcl_conf $d/tclConfig.sh"
789 if test -n "$tcl_conf" ; then
790 AC_MSG_RESULT($tcl_conf)
792 AC_MSG_RESULT(not found)
797 old_CPPFLAGS=$CPPFLAGS
800 if test -n "$tcl_conf" ; then
801 for file in $tcl_conf ; do
802 TCL_MAJOR_VERSION=x ; TCL_MINOR_VERSION=x
803 AC_MSG_CHECKING(Tcl info in $file)
805 v=$TCL_MAJOR_VERSION.$TCL_MINOR_VERSION
806 if test -z "$tcl_vers_maj" \
807 || test "$tcl_vers_maj" -lt "$TCL_MAJOR_VERSION" \
808 || test "$tcl_vers_maj" = "$TCL_MAJOR_VERSION" -a "$tcl_vers_min" -lt "$TCL_MINOR_VERSION" ; then
809 for incdir in "$TCL_PREFIX/include/tcl$v" "$TCL_PREFIX/include" ; do
810 if test -r "$incdir/tcl.h" -o -r "$incdir/tcl/tcl.h" ; then
811 CPPFLAGS="$old_CPPFLAGS -I$incdir"
815 LIBS="$old_LIBS `eval echo x $TCL_LIB_SPEC $TCL_LIBS | sed 's/^x//'`"
816 LDFLAGS="$old_LDFLAGS $TCL_LD_FLAGS"
817 AC_TRY_LINK( , [Tcl_CreateInterp ();],
819 tcl_vers_maj=$TCL_MAJOR_VERSION
820 tcl_vers_min=$TCL_MINOR_VERSION
821 AC_MSG_RESULT($v - working),
822 AC_MSG_RESULT($v - compilation failed)
825 AC_MSG_RESULT(older version $v)
829 CPPFLAGS=$old_CPPFLAGS
834 if test -n "$tcl_ok_conf" ; then
837 for incdir in "$TCL_PREFIX/include/tcl$v" "$TCL_PREFIX/include" ; do
838 if test -r "$incdir/tcl.h" -o -r "$incdir/tcl/tcl.h" ; then
839 if test "$incdir" != "/usr/include" ; then
840 TCL_INCLUDES=-I$incdir
845 # Need eval because the first-level expansion could reference
846 # variables like ${TCL_DBGX}.
847 eval TCL_LIBS='"'$TCL_LIB_SPEC $TCL_LIBS $TCL_DL_LIBS'"'
848 TCL_LIBPATH="-L$TCL_EXEC_PREFIX/lib"
849 TCL_RPATH=":$TCL_EXEC_PREFIX/lib"
850 if test "$DEPLIBEXT" != "$SHLIBEXT" && test -n "$RPATH_FLAG"; then
851 TCL_MAYBE_RPATH='$(RPATH_FLAG)'"$TCL_EXEC_PREFIX/lib$RPATH_TAIL"
855 CPPFLAGS="$old_CPPFLAGS $TCL_INCLUDES"
856 AC_CHECK_HEADER(tcl.h,AC_DEFINE(HAVE_TCL_H,1,[Define if tcl.h is available]) tcl_header=yes)
857 if test $tcl_header=no; then
858 AC_CHECK_HEADER(tcl/tcl.h,AC_DEFINE(HAVE_TCL_TCL_H,1,[Define if tcl/tcl.h is available]) tcl_header=yes)
860 CPPFLAGS="$old_CPPFLAGS"
863 # If we read a tclConfig.sh file, it probably set this.
866 AC_SUBST(TCL_INCLUDES)
868 AC_SUBST(TCL_LIBPATH)
870 AC_SUBST(TCL_MAYBE_RPATH)
873 dnl AC_KRB5_TCL_TRYOLD
874 dnl attempt to use old search algorithm for locating tcl
876 AC_DEFUN(AC_KRB5_TCL_TRYOLD, [
877 AC_REQUIRE([KRB5_AC_FIND_DLOPEN])
878 AC_MSG_WARN([trying old tcl search code])
879 if test "$with_tcl" != yes -a "$with_tcl" != no; then
880 TCL_INCLUDES=-I$with_tcl/include
881 TCL_LIBPATH=-L$with_tcl/lib
882 TCL_RPATH=:$with_tcl/lib
884 if test "$with_tcl" != no ; then
885 krb5_save_CPPFLAGS="$CPPFLAGS"
886 krb5_save_LDFLAGS="$LDFLAGS"
887 CPPFLAGS="$CPPFLAGS $TCL_INCLUDES"
888 LDFLAGS="$LDFLAGS $TCL_LIBPATH"
890 AC_CHECK_HEADER(tcl.h,AC_DEFINE(HAVE_TCL_H,1,[Define if tcl.h found]) tcl_header=yes)
891 if test $tcl_header=no; then
892 AC_CHECK_HEADER(tcl/tcl.h,AC_DEFINE(HAVE_TCL_TCL_H,1,[Define if tcl/tcl.h found]) tcl_header=yes)
895 if test $tcl_header = yes ; then
898 if test $tcl_lib = no; then
899 AC_CHECK_LIB(tcl8.0, Tcl_CreateCommand,
900 TCL_LIBS="$TCL_LIBS -ltcl8.0 -lm $DL_LIB $LIBS"
901 tcl_lib=yes,,-lm $DL_LIB)
903 if test $tcl_lib = no; then
904 AC_CHECK_LIB(tcl7.6, Tcl_CreateCommand,
905 TCL_LIBS="$TCL_LIBS -ltcl7.6 -lm $DL_LIB $LIBS"
906 tcl_lib=yes,,-lm $DL_LIB)
908 if test $tcl_lib = no; then
909 AC_CHECK_LIB(tcl7.5, Tcl_CreateCommand,
910 TCL_LIBS="$TCL_LIBS -ltcl7.5 -lm $DL_LIB $LIBS"
911 tcl_lib=yes,,-lm $DL_LIB)
914 if test $tcl_lib = no ; then
915 AC_CHECK_LIB(tcl, Tcl_CreateCommand,
916 TCL_LIBS="$TCL_LIBS -ltcl -lm $DL_LIB $LIBS"
917 tcl_lib=yes,,-lm $DL_LIB)
920 if test $tcl_lib = no ; then
921 AC_MSG_WARN("tcl.h found but not library")
924 AC_MSG_WARN(Could not find Tcl which is needed for the kadm5 tests)
927 CPPFLAGS="$krb5_save_CPPFLAGS"
928 LDFLAGS="$krb5_save_LDFLAGS"
929 AC_SUBST(TCL_INCLUDES)
931 AC_SUBST(TCL_LIBPATH)
934 AC_MSG_RESULT("Not looking for Tcl library")
938 dnl AC_KRB5_TCL - determine if the TCL library is present on system
940 AC_DEFUN(AC_KRB5_TCL,[
948 [ --with-tcl=path where Tcl resides], , with_tcl=try)
949 if test "$with_tcl" = no ; then
951 elif test "$with_tcl" = yes -o "$with_tcl" = try ; then
953 if test ! -r /usr/lib/tclConfig.sh; then
954 cat >> conftest <<\EOF
955 puts "tcl_dir=$tcl_library"
957 if tclsh conftest >conftest.out 2>/dev/null; then
958 if grep tcl_dir= conftest.out >/dev/null 2>&1; then
959 t=`sed s/tcl_dir=// conftest.out`
962 fi # tclsh ran script okay
963 rm -f conftest conftest.out
964 fi # no /usr/lib/tclConfig.sh
968 if test "$with_tcl" != no ; then
969 AC_KRB5_TCL_FIND_CONFIG
970 if test $tcl_lib = no ; then
971 if test "$with_tcl" != try ; then
974 AC_MSG_WARN(Could not find Tcl which is needed for some tests)
978 # If "yes" or pathname, error out if not found.
979 if test "$with_tcl" != no -a "$with_tcl" != try ; then
980 if test "$tcl_header $tcl_lib" != "yes yes" ; then
981 AC_MSG_ERROR(Could not find Tcl)
989 AC_DEFUN(WITH_HESIOD,
990 [AC_ARG_WITH(hesiod, AC_HELP_STRING(--with-hesiod[=path], compile with hesiod support @<:@omitted@:>@),
991 hesiod=$with_hesiod, with_hesiod=no)
992 if test "$with_hesiod" != "no"; then
994 AC_CHECK_LIB(resolv, res_send, res_lib=-lresolv)
995 if test "$hesiod" != "yes"; then
996 HESIOD_LIBS="-L${hesiod}/lib -lhesiod $res_lib"
998 HESIOD_LIBS="-lhesiod $res_lib"
1004 AC_SUBST(HESIOD_DEFS)
1005 AC_SUBST(HESIOD_LIBS)])
1009 dnl KRB5_BUILD_LIBRARY
1011 dnl Pull in the necessary stuff to create the libraries.
1013 AC_DEFUN(KRB5_BUILD_LIBRARY,
1014 [AC_REQUIRE([KRB5_LIB_AUX])dnl
1015 AC_REQUIRE([AC_PROG_LN_S])dnl
1016 AC_REQUIRE([AC_PROG_RANLIB])dnl
1017 AC_REQUIRE([AC_PROG_ARCHIVE])dnl
1018 AC_REQUIRE([AC_PROG_ARCHIVE_ADD])dnl
1019 AC_REQUIRE([AC_PROG_INSTALL])dnl
1020 AC_CHECK_PROG(AR, ar, ar, false)
1021 if test "$AR" = "false"; then
1022 AC_MSG_ERROR([ar not found in PATH])
1024 AC_CHECK_PROG(PERL, perl, perl, false)
1025 if test "$ac_cv_prog_PERL" = "false"; then
1026 AC_MSG_ERROR(Perl is now required for Kerberos builds.)
1031 AC_SUBST(PLUGINLINK)
1032 AC_SUBST(PLUGININST)
1033 AC_SUBST(KDB5_PLUGIN_DEPLIBS)
1034 AC_SUBST(KDB5_PLUGIN_LIBS)
1035 AC_SUBST(MAKE_SHLIB_COMMAND)
1036 AC_SUBST(SHLIB_RPATH_FLAGS)
1037 AC_SUBST(SHLIB_EXPFLAGS)
1038 AC_SUBST(SHLIB_EXPORT_FILE_DEP)
1039 AC_SUBST(DYNOBJ_EXPDEPS)
1040 AC_SUBST(DYNOBJ_EXPFLAGS)
1041 AC_SUBST(INSTALL_SHLIB)
1048 AC_SUBST(LIBINSTLIST)
1050 AC_SUBST(MAKE_DYNOBJ_COMMAND)
1051 AC_SUBST(UNDEF_CHECK)
1055 dnl KRB5_BUILD_LIBOBJS
1057 dnl Pull in the necessary stuff to build library objects.
1059 AC_DEFUN(KRB5_BUILD_LIBOBJS,
1060 [AC_REQUIRE([KRB5_LIB_AUX])dnl
1066 AC_SUBST(PROFFLAGS)])
1069 dnl KRB5_BUILD_PROGRAM
1071 dnl Set variables to build a program.
1073 AC_DEFUN(KRB5_BUILD_PROGRAM,
1074 [AC_REQUIRE([KRB5_LIB_AUX])dnl
1075 AC_REQUIRE([KRB5_AC_NEED_LIBGEN])dnl
1078 AC_SUBST(RPATH_FLAG)
1079 AC_SUBST(PROG_RPATH_FLAGS)
1080 AC_SUBST(DEPLIBEXT)])
1085 dnl Set up environment for running dynamic executables out of build tree
1087 AC_DEFUN(KRB5_RUN_FLAGS,
1088 [AC_REQUIRE([KRB5_LIB_AUX])dnl
1089 KRB5_RUN_ENV="$RUN_ENV"
1090 KRB5_RUN_VARS="$RUN_VARS"
1091 AC_SUBST(KRB5_RUN_ENV)
1092 AC_SUBST(KRB5_RUN_VARS)])
1097 dnl Parse configure options related to library building.
1099 AC_DEFUN(KRB5_LIB_AUX,
1100 [AC_REQUIRE([KRB5_LIB_PARAMS])dnl
1102 AC_ARG_ENABLE([static],,, [enable_static=no])
1103 AC_ARG_ENABLE([shared],,, [enable_shared=yes])
1105 if test "x$enable_static" = "x$enable_shared"; then
1106 AC_MSG_ERROR([--enable-static must be specified with --disable-shared])
1109 AC_ARG_ENABLE([rpath],
1110 AC_HELP_STRING([--disable-rpath],[suppress run path flags in link lines]),,
1113 if test "x$enable_rpath" != xyes ; then
1114 # Unset the rpath flag values set by shlib.conf
1120 if test "$SHLIBEXT" = ".so-nobuild"; then
1121 AC_MSG_ERROR([Shared libraries are not yet supported on this platform.])
1126 if test "x$enable_static" = xyes; then
1127 AC_MSG_NOTICE([using static libraries])
1128 LIBLIST='lib$(LIBBASE)$(STLIBEXT)'
1129 LIBLINKS='$(TOPLIBD)/lib$(LIBBASE)$(STLIBEXT)'
1130 PLUGIN='libkrb5_$(LIBBASE)$(STLIBEXT)'
1131 PLUGINLINK='$(TOPLIBD)/libkrb5_$(LIBBASE)$(STLIBEXT)'
1132 PLUGININST=install-static
1134 LIBINSTLIST=install-static
1136 AC_DEFINE([STATIC_PLUGINS], 1, [Define for static plugin linkage])
1138 KDB5_PLUGIN_DEPLIBS='$(TOPLIBD)/libkrb5_db2$(DEPLIBEXT)'
1139 KDB5_PLUGIN_LIBS='-lkrb5_db2'
1140 if test "x$OPENLDAP_PLUGIN" = xyes; then
1141 KDB5_PLUGIN_DEBLIBS=$KDB5_PLUGIN_DEPLIBS' $(TOPLIBD)/libkrb5_ldap$(DEPLIBEXT) $(TOPLIBD)/libkdb_ldap$(DEPLIBEXT)'
1142 KDB5_PLUGIN_LIBS=$KDB5_PLUGIN_LIBS' -lkrb5_kldap -lkdb_ldap $(LDAP_LIBS)'
1144 # kadm5srv_mit normally comes before kdb on the link line. Add it
1145 # again after the KDB plugins, since they depend on it for XDR stuff.
1146 KDB5_PLUGIN_DEPLIBS=$KDB5_PLUGIN_DEPLIBS' $(TOPLIBD)/libkadm5srv_mit$(DEPLIBEXT)'
1147 KDB5_PLUGIN_LIBS=$KDB5_PLUGIN_LIBS' -lkadm5srv_mit'
1149 # avoid duplicate rules generation for AIX and such
1150 SHLIBEXT=.so-nobuild
1151 SHLIBVEXT=.so.v-nobuild
1152 SHLIBSEXT=.so.s-nobuild
1154 AC_MSG_NOTICE([using shared libraries])
1156 # Clear some stuff in case of AIX, etc.
1157 if test "$STLIBEXT" = "$SHLIBEXT" ; then
1160 case "$SHLIBSEXT" in
1162 LIBLIST='lib$(LIBBASE)$(SHLIBEXT)'
1163 LIBLINKS='$(TOPLIBD)/lib$(LIBBASE)$(SHLIBEXT) $(TOPLIBD)/lib$(LIBBASE)$(SHLIBVEXT)'
1164 LIBINSTLIST="install-shared"
1167 LIBLIST='lib$(LIBBASE)$(SHLIBEXT) lib$(LIBBASE)$(SHLIBSEXT)'
1168 LIBLINKS='$(TOPLIBD)/lib$(LIBBASE)$(SHLIBEXT) $(TOPLIBD)/lib$(LIBBASE)$(SHLIBVEXT) $(TOPLIBD)/lib$(LIBBASE)$(SHLIBSEXT)'
1169 LIBINSTLIST="install-shlib-soname"
1173 PLUGIN='$(LIBBASE)$(DYNOBJEXT)'
1174 PLUGINLINK='../$(PLUGIN)'
1175 PLUGININST=install-plugin
1176 KDB5_PLUGIN_DEPLIBS=
1179 CC_LINK="$CC_LINK_SHARED"
1180 CXX_LINK="$CXX_LINK_SHARED"
1182 if test -z "$LIBLIST"; then
1183 AC_MSG_ERROR([must enable one of shared or static libraries])
1186 # Check whether to build profiled libraries.
1187 AC_ARG_ENABLE([profiled],
1188 dnl [ --enable-profiled build profiled libraries @<:@disabled@:>@]
1190 [if test "$enableval" = yes; then
1191 AC_MSG_ERROR([Sorry, profiled libraries do not work in this release.])
1197 dnl Determine parameters related to libraries, e.g. various extensions.
1199 AC_DEFUN(KRB5_LIB_PARAMS,
1200 [AC_REQUIRE([AC_CANONICAL_HOST])dnl
1202 AC_SUBST(krb5_cv_host)
1203 AC_REQUIRE([AC_PROG_CC])dnl
1204 AC_REQUIRE([V5_SET_TOPDIR])dnl
1205 . $ac_topdir/config/shlib.conf])
1207 dnl The following was written by jhawk@mit.edu
1209 dnl AC_LIBRARY_NET: Id: net.m4,v 1.4 1997/10/25 20:49:53 jhawk Exp
1211 dnl This test is for network applications that need socket() and
1212 dnl gethostbyname() -ish functions. Under Solaris, those applications need to
1213 dnl link with "-lsocket -lnsl". Under IRIX, they should *not* link with
1214 dnl "-lsocket" because libsocket.a breaks a number of things (for instance:
1215 dnl gethostbyname() under IRIX 5.2, and snoop sockets under most versions of
1218 dnl Unfortunately, many application developers are not aware of this, and
1219 dnl mistakenly write tests that cause -lsocket to be used under IRIX. It is
1220 dnl also easy to write tests that cause -lnsl to be used under operating
1221 dnl systems where neither are necessary (or useful), such as SunOS 4.1.4, which
1222 dnl uses -lnsl for TLI.
1224 dnl This test exists so that every application developer does not test this in
1225 dnl a different, and subtly broken fashion.
1227 dnl It has been argued that this test should be broken up into two seperate
1228 dnl tests, one for the resolver libraries, and one for the libraries necessary
1229 dnl for using Sockets API. Unfortunately, the two are carefully intertwined and
1230 dnl allowing the autoconf user to use them independantly potentially results in
1231 dnl unfortunate ordering dependancies -- as such, such component macros would
1232 dnl have to carefully use indirection and be aware if the other components were
1233 dnl executed. Since other autoconf macros do not go to this trouble, and almost
1234 dnl no applications use sockets without the resolver, this complexity has not
1235 dnl been implemented.
1237 dnl The check for libresolv is in case you are attempting to link statically
1238 dnl and happen to have a libresolv.a lying around (and no libnsl.a).
1240 AC_DEFUN(AC_LIBRARY_NET, [
1241 # Most operating systems have gethostbyname() in the default searched
1242 # libraries (i.e. libc):
1243 AC_CHECK_FUNC(gethostbyname, , [
1244 # Some OSes (eg. Solaris) place it in libnsl:
1245 AC_CHECK_LIB(nsl, gethostbyname, , [
1246 # Some strange OSes (SINIX) have it in libsocket:
1247 AC_CHECK_LIB(socket, gethostbyname, , [
1248 # Unfortunately libsocket sometimes depends on libnsl.
1249 # AC_CHECK_LIB's API is essentially broken so the following
1250 # ugliness is necessary:
1251 AC_CHECK_LIB(socket, gethostbyname,
1252 LIBS="-lsocket -lnsl $LIBS",
1253 [AC_CHECK_LIB(resolv, gethostbyname,
1254 LIBS="-lresolv $LIBS" )],
1259 AC_CHECK_FUNC(socket, , AC_CHECK_LIB(socket, socket, ,
1260 AC_CHECK_LIB(socket, socket, LIBS="-lsocket -lnsl $LIBS", , -lnsl)))
1262 if test "$enable_dns" = yes ; then
1263 # We assume that if libresolv exists we can link against it.
1264 # This may get us a gethostby* that doesn't respect nsswitch.
1265 AC_CHECK_LIB(resolv, main)
1267 _KRB5_AC_CHECK_RES_FUNCS(res_ninit res_nclose res_ndestroy res_nsearch dnl
1268 ns_initparse ns_name_uncompress dn_skipname res_search)
1269 if test $krb5_cv_func_res_nsearch = no \
1270 && test $krb5_cv_func_res_search = no; then
1271 # Attempt to link with res_search(), in case it's not prototyped.
1272 AC_CHECK_FUNC(res_search,
1273 [AC_DEFINE(HAVE_RES_SEARCH, 1,
1274 [Define to 1 if you have the `res_search' function])],
1275 [AC_ERROR([cannot find res_nsearch or res_search])])
1279 AC_DEFUN([_KRB5_AC_CHECK_RES_FUNCS],
1280 [AC_FOREACH([AC_Func], [$1],
1281 [AH_TEMPLATE(AS_TR_CPP(HAVE_[]AC_Func),
1282 [Define to 1 if you have the `]AC_Func[' function.])])dnl
1283 for krb5_func in $1; do
1284 _KRB5_AC_CHECK_RES_FUNC($krb5_func)
1287 AC_DEFUN([_KRB5_AC_CHECK_RES_FUNC], [
1288 # Solaris 9 prototypes ns_name_uncompress() in arpa/nameser.h, but
1289 # doesn't export it from libresolv.so, so we use extreme paranoia here
1290 # and check both for the declaration and that we can link against the
1292 AC_CACHE_CHECK([for $1], [krb5_cv_func_$1], [AC_TRY_LINK(
1293 [#include <sys/types.h>
1294 #include <netinet/in.h>
1295 #include <arpa/nameser.h>
1296 @%:@include <resolv.h>],
1298 * Use volatile, or else optimization can cause false positives.
1300 void (* volatile p)() = (void (*)())$1;],
1301 [AS_VAR_SET(krb5_cv_func_$1, yes)],
1302 [AS_VAR_SET(krb5_cv_func_$1, no)])])
1303 AS_IF([test AS_VAR_GET(krb5_cv_func_$1) = yes],
1304 [AC_DEFINE_UNQUOTED(AS_TR_CPP([HAVE_$1]), 1,
1305 [Define to 1 if you have the `$1' function])])[]dnl
1309 dnl KRB5_AC_ENABLE_DNS
1311 AC_DEFUN(KRB5_AC_ENABLE_DNS, [
1313 AC_ARG_ENABLE([dns-for-realm],
1314 [ --enable-dns-for-realm enable DNS lookups of Kerberos realm names], ,
1315 [enable_dns_for_realm=no])
1316 if test "$enable_dns_for_realm" = yes; then
1317 AC_DEFINE(KRB5_DNS_LOOKUP_REALM,1,[Define to enable DNS lookups of Kerberos realm names])
1320 AC_DEFINE(KRB5_DNS_LOOKUP, 1,[Define for DNS support of locating realms and KDCs])
1325 dnl Check if we need the prototype for a function - we give it a bogus
1326 dnl prototype and if it complains - then a valid prototype exists on the
1329 dnl KRB5_NEED_PROTO(includes, function, [bypass])
1330 dnl if $3 set, don't see if library defined.
1331 dnl Useful for case where we will define in libkrb5 the function if need be
1332 dnl but want to know if a prototype exists in either case on system.
1334 AC_DEFUN([KRB5_NEED_PROTO], [
1335 ifelse([$3], ,[if test "x$ac_cv_func_$2" = xyes; then])
1336 AC_CACHE_CHECK([if $2 needs a prototype provided], krb5_cv_func_$2_noproto,
1337 AC_TRY_COMPILE([$1],
1339 struct k5foo {int foo; } xx;
1340 extern int $2 (struct k5foo*);
1343 krb5_cv_func_$2_noproto=yes,krb5_cv_func_$2_noproto=no))
1344 if test $krb5_cv_func_$2_noproto = yes; then
1345 AC_DEFINE([NEED_]translit($2, [a-z], [A-Z])[_PROTO], 1, dnl
1346 [define if the system header files are missing prototype for $2()])
1351 dnl =============================================================
1352 dnl Internal function for testing for getpeername prototype
1354 AC_DEFUN([KRB5_GETPEERNAME_ARGS],[
1355 AC_DEFINE([GETPEERNAME_ARG2_TYPE],GETSOCKNAME_ARG2_TYPE,[Type of getpeername second argument.])
1356 AC_DEFINE([GETPEERNAME_ARG3_TYPE],GETSOCKNAME_ARG3_TYPE,[Type of getpeername second argument.])
1359 dnl =============================================================
1360 dnl Internal function for testing for getsockname arguments
1362 AC_DEFUN([TRY_GETSOCK_INT],[
1363 krb5_lib_var=`echo "$1 $2" | sed 'y% ./+-*%___p_p%'`
1364 AC_MSG_CHECKING([if getsockname() takes arguments $1 and $2])
1365 AC_CACHE_VAL(krb5_cv_getsockname_proto_$krb5_lib_var,
1367 AC_TRY_COMPILE([#include <sys/types.h>
1368 #include <sys/socket.h>
1369 extern int getsockname(int, $1, $2);
1370 ],,eval "krb5_cv_getsockname_proto_$krb5_lib_var=yes",
1371 eval "krb5_cv_getsockname_proto_$krb5_lib_var=no")])
1372 if eval "test \"`echo '$krb5_cv_getsockname_proto_'$krb5_lib_var`\" = yes"; then
1374 sock_set=yes; res1="$1"; res2="$2"
1380 dnl Determines the types of the second and third arguments to getsockname().
1382 AC_DEFUN([KRB5_GETSOCKNAME_ARGS],[
1384 for sock_arg1 in "struct sockaddr *" "void *"
1386 for sock_arg2 in "size_t *" "int *" "socklen_t *"
1388 if test $sock_set = no; then
1389 TRY_GETSOCK_INT($sock_arg1, $sock_arg2)
1393 if test "$sock_set" = no; then
1394 AC_MSG_NOTICE(assuming struct sockaddr and socklen_t for getsockname args)
1395 res1="struct sockaddr *"
1398 res1=`echo "$res1" | tr -d '*' | sed -e 's/ *$//'`
1399 res2=`echo "$res2" | tr -d '*' | sed -e 's/ *$//'`
1400 AC_DEFINE_UNQUOTED([GETSOCKNAME_ARG2_TYPE],$res1,[Type of pointer target for argument 2 to getsockname])
1401 AC_DEFINE_UNQUOTED([GETSOCKNAME_ARG3_TYPE],$res2,[Type of pointer target for argument 3 to getsockname])
1405 AC_DEFUN([KRB5_AC_CHOOSE_ET],[
1406 AC_ARG_WITH([system-et],
1407 AC_HELP_STRING(--with-system-et,use system compile_et and -lcom_err @<:@default: build and install a local version@:>@))
1408 AC_MSG_CHECKING(which version of com_err to use)
1409 if test "x$with_system_et" = xyes ; then
1410 # This will be changed to "intlsys" if textdomain support is present.
1412 AC_MSG_RESULT(system)
1417 if test $COM_ERR_VERSION = sys; then
1418 # check for various functions we need
1419 AC_CHECK_LIB(com_err, add_error_table, :, AC_MSG_ERROR(cannot find add_error_table in com_err library))
1420 AC_CHECK_LIB(com_err, remove_error_table, :, AC_MSG_ERROR(cannot find remove_error_table in com_err library))
1421 # make sure compile_et provides "et_foo" name
1422 cat >> conf$$e.et <<EOF
1424 error_code ERR_FOO, "foo"
1427 AC_CHECK_PROGS(compile_et,compile_et,false)
1428 if test "$compile_et" = false; then
1429 AC_MSG_ERROR(cannot find compile_et)
1431 AC_CACHE_CHECK(whether compile_et is useful,krb5_cv_compile_et_useful,[
1432 if compile_et conf$$e.et >/dev/null 2>&1 ; then true ; else
1433 AC_MSG_ERROR(execution failed)
1435 AC_TRY_COMPILE([#include "conf$$e.h"
1436 ],[ &et_foo_error_table; ],:,
1437 [AC_MSG_ERROR(cannot use et_foo_error_table)])
1438 # Anything else we need to test for?
1439 rm -f conf$$e.c conf$$e.h
1440 krb5_cv_compile_et_useful=yes
1442 AC_CACHE_CHECK(whether compile_et supports --textdomain,
1443 krb5_cv_compile_et_textdomain,[
1444 krb5_cv_compile_et_textdomain=no
1445 if compile_et --textdomain=xyzw conf$$e.et >/dev/null 2>&1 ; then
1446 if grep -q xyzw conf$$e.c; then
1447 krb5_cv_compile_et_textdomain=yes
1450 rm -f conf$$e.c conf$$e.h
1452 if test "$krb5_cv_compile_et_textdomain" = yes; then
1453 COM_ERR_VERSION=intlsys
1457 AC_SUBST(COM_ERR_VERSION)
1458 if test "$COM_ERR_VERSION" = k5 -o "$COM_ERR_VERSION" = intlsys; then
1459 AC_DEFINE(HAVE_COM_ERR_INTL,1,
1460 [Define if com_err has compatible gettext support])
1463 AC_DEFUN([KRB5_AC_CHOOSE_SS],[
1464 AC_ARG_WITH(system-ss,
1465 AC_HELP_STRING(--with-system-ss,use system -lss and mk_cmds @<:@private version@:>@))
1466 AC_ARG_VAR(SS_LIB,[system libraries for 'ss' package [-lss]])
1467 AC_MSG_CHECKING(which version of subsystem package to use)
1468 if test "x$with_system_ss" = xyes ; then
1470 AC_MSG_RESULT(system)
1471 # todo: check for various libraries we might need
1472 # in the meantime...
1473 test "x${SS_LIB+set}" = xset || SS_LIB=-lss
1475 LIBS="$LIBS $SS_LIB"
1476 AC_CACHE_CHECK(whether system ss package works, krb5_cv_system_ss_okay,[
1479 int main(int argc, char *argv[]) {
1482 i = ss_create_invocation("foo","foo","",0,&err);
1486 }], krb5_cv_system_ss_okay=yes, AC_MSG_ERROR(cannot run test program),
1487 krb5_cv_system_ss_okay="assumed")])
1489 KRB5_NEED_PROTO([#include <ss/ss.h>],ss_execute_command,1)
1495 AC_SUBST(SS_VERSION)
1498 AC_DEFUN([KRB5_AC_CHOOSE_DB],[
1499 AC_ARG_WITH(system-db,
1500 AC_HELP_STRING(--with-system-db,use system Berkeley db @<:@private version@:>@))
1501 AC_ARG_VAR(DB_HEADER,[header file for system Berkeley db package [db.h]])
1502 AC_ARG_VAR(DB_LIB,[library for system Berkeley db package [-ldb]])
1503 if test "x$with_system_db" = xyes ; then
1505 # TODO: Do we have specific routines we should check for?
1506 # How about known, easily recognizable bugs?
1507 # We want to use bt_rseq in some cases, but no other version but
1508 # ours has it right now.
1510 # Okay, check the variables.
1511 test "x${DB_HEADER+set}" = xset || DB_HEADER=db.h
1512 test "x${DB_LIB+set}" = xset || DB_LIB=-ldb
1514 if test "x${DB_HEADER}" = xdb.h ; then
1515 DB_HEADER_VERSION=sys
1517 DB_HEADER_VERSION=redirect
1519 KDB5_DB_LIB="$DB_LIB"
1522 AC_DEFINE(HAVE_BT_RSEQ,1,[Define if bt_rseq is available, for recursive btree traversal.])
1524 DB_HEADER_VERSION=k5
1525 # libdb gets sucked into libkdb
1527 # needed for a couple of things that need libdb for its own sake
1530 AC_SUBST(DB_VERSION)
1532 AC_SUBST(DB_HEADER_VERSION)
1534 AC_SUBST(KDB5_DB_LIB)
1537 dnl KRB5_AC_PRIOCNTL_HACK
1540 AC_DEFUN([KRB5_AC_PRIOCNTL_HACK],
1541 [AC_REQUIRE([AC_PROG_AWK])dnl
1542 AC_REQUIRE([AC_LANG_COMPILER_REQUIRE])dnl
1543 AC_CACHE_CHECK([whether to use priocntl hack], [krb5_cv_priocntl_hack],
1544 [case $krb5_cv_host in
1546 if test "$cross_compiling" = yes; then
1547 krb5_cv_priocntl_hack=yes
1549 # Solaris patch 117171-11 (sparc) or 117172-11 (x86)
1550 # fixes the Solaris 9 bug where final pty output
1551 # gets lost on close.
1552 if showrev -p | $AWK 'BEGIN { e = 1 }
1553 /Patch: 11717[[12]]/ { x = index[]([$]2, "-");
1554 if (substr[]([$]2, x + 1, length([$]2) - x) >= 11)
1555 { e = 0 } else { e = 1 } }
1556 END { exit e; }'; then
1557 krb5_cv_priocntl_hack=no
1559 krb5_cv_priocntl_hack=yes
1564 krb5_cv_priocntl_hack=no
1567 if test "$krb5_cv_priocntl_hack" = yes; then
1572 AC_SUBST(PRIOCNTL_HACK)])
1575 dnl KRB5_AC_GCC_ATTRS
1576 AC_DEFUN([KRB5_AC_GCC_ATTRS],
1577 [AC_CACHE_CHECK([for constructor/destructor attribute support],krb5_cv_attr_constructor_destructor,
1578 [rm -f conftest.1 conftest.2
1579 if test -r conftest.1 || test -r conftest.2 ; then
1580 AC_MSG_ERROR(write error in local file system?)
1584 if test -r conftest.1 && test -r conftest.2 ; then true ; else
1585 AC_MSG_ERROR(write error in local file system?)
1589 # blindly assume we have 'unlink'...
1590 AC_TRY_RUN([void foo1() __attribute__((constructor));
1591 void foo1() { unlink("conftest.1"); }
1592 void foo2() __attribute__((destructor));
1593 void foo2() { unlink("conftest.2"); }
1594 int main () { return 0; }],
1595 [test -r conftest.1 || a=yes
1596 test -r conftest.2 || b=yes], , AC_MSG_ERROR(Cannot test for constructor/destructor support when cross compiling))
1597 case $krb5_cv_host in
1599 # Under AIX 4.3.3, at least, shared library destructor functions
1600 # appear to get executed in reverse link order (right to left),
1601 # so that a library's destructor function may run after that of
1602 # libraries it depends on, and may still have to access in the
1605 # That counts as "not working", for me, but it's a much more
1606 # complicated test case to set up.
1610 krb5_cv_attr_constructor_destructor="$a,$b"
1612 # Okay, krb5_cv_... should be set now.
1613 case $krb5_cv_attr_constructor_destructor in
1615 AC_DEFINE(CONSTRUCTOR_ATTR_WORKS,1,[Define if __attribute__((constructor)) works]) ;;
1617 case $krb5_cv_attr_constructor_destructor in
1619 AC_DEFINE(DESTRUCTOR_ATTR_WORKS,1,[Define if __attribute__((destructor)) works]) ;;
1621 dnl End of attributes we care about right now.
1625 dnl KRB5_AC_PRAGMA_WEAK_REF
1626 AC_DEFUN([KRB5_AC_PRAGMA_WEAK_REF],
1627 [AC_CACHE_CHECK([whether pragma weak references are supported],
1628 krb5_cv_pragma_weak_ref,
1629 [AC_TRY_LINK([#pragma weak flurbl
1630 extern int flurbl(void);],[if (&flurbl != 0) return flurbl();],
1631 krb5_cv_pragma_weak_ref=yes,krb5_cv_pragma_weak_ref=no)])
1632 if test $krb5_cv_pragma_weak_ref = yes ; then
1633 AC_DEFINE(HAVE_PRAGMA_WEAK_REF,1,[Define if #pragma weak references work])
1637 m4_include(config/ac-archive/acx_pthread.m4)
1638 m4_include(config/ac-archive/relpaths.m4)
1642 dnl --with-ldap=value
1644 AC_DEFUN(WITH_LDAP,[
1646 [ --with-ldap compile OpenLDAP database backend module],
1648 OPENLDAP) with_ldap=yes ;;
1650 *) AC_MSG_ERROR(Invalid option value --with-ldap="$withval") ;;
1651 esac], with_ldap=no)dnl
1653 if test "$with_ldap" = yes; then
1654 AC_MSG_NOTICE(enabling OpenLDAP database backend module support)
1659 dnl If libkeyutils exists (on Linux) include it and use keyring ccache
1660 AC_DEFUN(KRB5_AC_KEYRING_CCACHE,[
1661 AC_CHECK_HEADERS([keyutils.h],
1662 AC_CHECK_LIB(keyutils, add_key,
1663 [dnl Pre-reqs were found
1664 AC_DEFINE(USE_KEYRING_CCACHE, 1, [Define if the keyring ccache should be enabled])
1665 LIBS="-lkeyutils $LIBS"
1669 dnl If libkeyutils supports persistent keyrings, use them
1670 AC_DEFUN(KRB5_AC_PERSISTENT_KEYRING,[
1671 AC_CHECK_HEADERS([keyutils.h],
1672 AC_CHECK_LIB(keyutils, keyctl_get_persistent,
1673 [AC_DEFINE(HAVE_PERSISTENT_KEYRING, 1,
1674 [Define if persistent keyrings are supported])