/
aclocal.m4
1707 lines (1660 loc) · 54.4 KB
/
aclocal.m4
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AC_PREREQ(2.52)
AC_COPYRIGHT([Copyright 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2007, 2008, 2009
Massachusetts Institute of Technology.
])
dnl
dnl Figure out the top of the source and build trees. We depend on localdir
dnl being a relative pathname; we could make it general later, but for now
dnl this is good enough.
dnl
dnl esyscmd([test -r aclocal.m4 && echo YES])
define([fileexists],[dnl
pushdef([x],esyscmd([if test -r $1; then echo YES;else echo NO; fi]))dnl
dnl Strip out newline.
ifelse(x,[YES
],[YES],x,[NO
],[NO],UNKNOWN)[]popdef([x])])
define([K5_TOPDIR],dnl
ifelse(fileexists(./aclocal.m4),YES,[.],[dnl
ifelse(fileexists(../aclocal.m4),YES,[..],[dnl
ifelse(fileexists(../../aclocal.m4),YES,[../..],[dnl
ifelse(fileexists(../../../aclocal.m4),YES,[../../..],[dnl
ifelse(fileexists(../../../../aclocal.m4),YES,[../../../..],[dnl
errprint(__file__:__line__: Cannot find path to aclocal.m4[
]) m4exit(1) dnl sometimes that does not work?
builtin(m4exit,1)UNKNOWN])])])])]))
dnl
AC_DEFUN(V5_SET_TOPDIR,[dnl
ac_reltopdir="K5_TOPDIR"
if test ! -r "$srcdir/K5_TOPDIR/aclocal.m4"; then
AC_MSG_ERROR([Configure could not determine the relative topdir])
fi
ac_topdir=$srcdir/$ac_reltopdir
ac_config_fragdir=$ac_reltopdir/config
# echo "Looking for $srcdir/$ac_config_fragdir"
if test -d "$srcdir/$ac_config_fragdir"; then
AC_CONFIG_AUX_DIR(K5_TOPDIR/config)
else
AC_MSG_ERROR([can not find config/ directory in $ac_reltopdir])
fi
])dnl
dnl
dnl Version info.
dnl
pushdef([x],esyscmd([sed -n 's/#define \([A-Z0-9_]*\)[ \t]*\(.*\)/\1=\2/p' < ]K5_TOPDIR/patchlevel.h))
define([PL_KRB5_MAJOR_RELEASE],regexp(x,[KRB5_MAJOR_RELEASE=\(.*\)],[\1]))
ifelse(PL_KRB5_MAJOR_RELEASE,,[errprint([Can't determine KRB5_MAJOR_RELEASE value from patchlevel.h.
]) m4exit(1) dnl sometimes that does not work?
builtin(m4exit,1)])
define([PL_KRB5_MINOR_RELEASE],regexp(x,[KRB5_MINOR_RELEASE=\(.*\)],[\1]))
ifelse(PL_KRB5_MINOR_RELEASE,,[errprint([Can't determine KRB5_MINOR_RELEASE value from patchlevel.h.
]) m4exit(1) dnl sometimes that does not work?
builtin(m4exit,1)])
define([PL_KRB5_PATCHLEVEL],regexp(x,[KRB5_PATCHLEVEL=\(.*\)],[\1]))
ifelse(PL_KRB5_PATCHLEVEL,,[errprint([Can't determine KRB5_PATCHLEVEL value from patchlevel.h.
]) m4exit(1) dnl sometimes that does not work?
builtin(m4exit,1)])
define([PL_KRB5_RELTAIL],regexp(x,[KRB5_RELTAIL="\(.*\)"],[\1]))
dnl RELTAIL is allowed to not be defined.
popdef([x])
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))
define([K5_BUGADDR],krb5-bugs@mit.edu)
define([K5_AC_INIT],[AC_INIT(Kerberos 5, K5_VERSION, K5_BUGADDR, krb5)
AC_CONFIG_SRCDIR($1)
build_dynobj=no])
dnl
dnl drop in standard rules for all configure files -- CONFIG_RULES
dnl
AC_DEFUN(CONFIG_RULES,[dnl
AC_REQUIRE([V5_SET_TOPDIR]) dnl
EXTRA_FILES=""
AC_SUBST(EXTRA_FILES)
WITH_CC dnl
AC_REQUIRE_CPP
if test -z "$LD" ; then LD=$CC; fi
AC_ARG_VAR(LD,[linker command [CC]])
AC_SUBST(LDFLAGS) dnl
KRB5_AC_CHOOSE_ET dnl
KRB5_AC_CHOOSE_SS dnl
KRB5_AC_CHOOSE_DB dnl
dnl allow stuff in tree to access deprecated stuff for now
dnl AC_DEFINE([KRB5_DEPRECATED], 1, [Define only if building in-tree])
AC_C_CONST dnl
WITH_NETLIB dnl
WITH_HESIOD dnl
KRB5_AC_MAINTAINER_MODE dnl
AC_ARG_PROGRAM dnl
dnl
dnl This identifies the top of the source tree relative to the directory
dnl in which the configure file lives.
dnl
CONFIG_RELTOPDIR=$ac_reltopdir
AC_SUBST(CONFIG_RELTOPDIR)
lib_frag=$srcdir/$ac_config_fragdir/lib.in
AC_SUBST_FILE(lib_frag)
libobj_frag=$srcdir/$ac_config_fragdir/libobj.in
AC_SUBST_FILE(libobj_frag)
libnover_frag=$srcdir/$ac_config_fragdir/libnover.in
AC_SUBST_FILE(libnover_frag)
libpriv_frag=$srcdir/$ac_config_fragdir/libpriv.in
AC_SUBST_FILE(libpriv_frag)
libnodeps_frag=$srcdir/$ac_config_fragdir/libnodeps.in
AC_SUBST_FILE(libnodeps_frag)
dnl
KRB5_AC_PRAGMA_WEAK_REF
WITH_LDAP
KRB5_LIB_PARAMS
KRB5_AC_INITFINI
KRB5_AC_ENABLE_THREADS
KRB5_AC_FIND_DLOPEN
KRB5_AC_KEYRING_CCACHE
])dnl
dnl Maintainer mode, akin to what automake provides, 'cept we don't
dnl want to use automake right now.
AC_DEFUN([KRB5_AC_MAINTAINER_MODE],
[AC_ARG_ENABLE([maintainer-mode],
AC_HELP_STRING([--enable-maintainer-mode],[enable rebuilding of source files, Makefiles, etc]),
USE_MAINTAINER_MODE=$enableval,
USE_MAINTAINER_MODE=no)
if test "$USE_MAINTAINER_MODE" = yes; then
MAINTAINER_MODE_TRUE=
MAINTAINER_MODE_FALSE='#'
AC_MSG_NOTICE(enabling maintainer mode)
else
MAINTAINER_MODE_TRUE='#'
MAINTAINER_MODE_FALSE=
fi
MAINT=$MAINTAINER_MODE_TRUE
AC_SUBST(MAINTAINER_MODE_TRUE)
AC_SUBST(MAINTAINER_MODE_FALSE)
AC_SUBST(MAINT)
])
dnl
AC_DEFUN([KRB5_AC_INITFINI],[
dnl Do we want initialization at load time?
AC_ARG_ENABLE([delayed-initialization],
AC_HELP_STRING([--disable-delayed-initialization],initialize library code when loaded @<:@delay until first use@:>@), , enable_delayed_initialization=yes)
case "$enable_delayed_initialization" in
yes)
AC_DEFINE(DELAY_INITIALIZER,1,[Define if library initialization should be delayed until first use]) ;;
no) ;;
*) AC_MSG_ERROR(invalid option $enable_delayed_initialization for delayed-initialization) ;;
esac
dnl We always want finalization at unload time.
dnl
dnl Can we do things through gcc?
KRB5_AC_GCC_ATTRS
dnl How about with the linker?
if test -z "$use_linker_init_option" ; then
AC_MSG_ERROR(ran INITFINI before checking shlib.conf?)
fi
if test "$use_linker_init_option" = yes; then
AC_DEFINE(USE_LINKER_INIT_OPTION,1,[Define if link-time options for library initialization will be used])
fi
if test "$use_linker_fini_option" = yes; then
AC_DEFINE(USE_LINKER_FINI_OPTION,1,[Define if link-time options for library finalization will be used])
fi
])
dnl find dlopen
AC_DEFUN([KRB5_AC_FIND_DLOPEN],[
old_LIBS="$LIBS"
DL_LIB=
AC_SEARCH_LIBS(dlopen, dl, [
if test "$ac_cv_search_dlopen" != "none required"; then
DL_LIB=$ac_cv_search_dlopen
fi
LIBS="$old_LIBS"
AC_DEFINE(USE_DLOPEN,1,[Define if dlopen should be used])])
AC_SUBST(DL_LIB)
])
dnl Hack for now.
AC_DEFUN([KRB5_AC_ENABLE_THREADS],[
AC_ARG_ENABLE([thread-support],
AC_HELP_STRING([--disable-thread-support],don't enable thread support @<:@enabled@:>@), , enable_thread_support=yes)
if test "$enable_thread_support" = yes ; then
AC_MSG_NOTICE(enabling thread support)
AC_DEFINE(ENABLE_THREADS,1,[Define if thread support enabled])
fi
dnl Maybe this should be inside the conditional above? Doesn't cache....
if test "$enable_thread_support" = yes; then
ACX_PTHREAD(,[AC_MSG_ERROR([cannot determine options for enabling thread support; try --disable-thread-support])])
AC_MSG_NOTICE(PTHREAD_CC = $PTHREAD_CC)
AC_MSG_NOTICE(PTHREAD_CFLAGS = $PTHREAD_CFLAGS)
AC_MSG_NOTICE(PTHREAD_LIBS = $PTHREAD_LIBS)
dnl Not really needed -- if pthread.h isn't found, ACX_PTHREAD will fail.
dnl AC_CHECK_HEADERS(pthread.h)
# AIX and Tru64 don't support weak references, and don't have
# stub versions of the pthread code in libc.
case "${host_os}" in
aix* | osf*)
# On these platforms, we'll always pull in the thread support.
LIBS="$LIBS $PTHREAD_LIBS"
CFLAGS="$CFLAGS $PTHREAD_CFLAGS"
# We don't need to sometimes add the flags we've just folded in...
PTHREAD_LIBS=
PTHREAD_CFLAGS=
;;
hpux*)
# These are the flags that "gcc -pthread" adds. But we don't
# want "-pthread" because that has link-time effects, and we
# don't exclude CFLAGS when linking. *sigh*
PTHREAD_CFLAGS="-D_REENTRANT -D_THREAD_SAFE -D_POSIX_C_SOURCE=199506L"
;;
solaris2.[[1-9]])
# On Solaris 10 with gcc 3.4.3, the autoconf archive macro doesn't
# get the right result. XXX What about Solaris 9 and earlier?
if test "$GCC" = yes ; then
PTHREAD_CFLAGS="-D_REENTRANT -pthreads"
fi
;;
solaris*)
# On Solaris 10 with gcc 3.4.3, the autoconf archive macro doesn't
# get the right result.
if test "$GCC" = yes ; then
PTHREAD_CFLAGS="-D_REENTRANT -pthreads"
fi
# On Solaris 10, the thread support is always available in libc.
AC_DEFINE(NO_WEAK_PTHREADS,1,[Define if references to pthread routines should be non-weak.])
;;
esac
THREAD_SUPPORT=1
else
PTHREAD_CC="$CC"
PTHREAD_CFLAGS=""
PTHREAD_LIBS=""
THREAD_SUPPORT=0
fi
AC_SUBST(THREAD_SUPPORT)
dnl We want to know where these routines live, so on systems with weak
dnl reference support we can figure out whether or not the pthread library
dnl has been linked in.
dnl If we don't add any libraries for thread support, don't bother.
AC_CHECK_FUNCS(pthread_once pthread_rwlock_init)
old_CC="$CC"
test "$PTHREAD_CC" != "" && test "$ac_cv_c_compiler_gnu" = no && CC=$PTHREAD_CC
old_CFLAGS="$CFLAGS"
# On Solaris, -pthreads is added to CFLAGS, no extra explicit libraries.
CFLAGS="$CFLAGS $PTHREAD_CFLAGS"
AC_SUBST(PTHREAD_CFLAGS)
old_LIBS="$LIBS"
LIBS="$PTHREAD_LIBS $LIBS"
AC_MSG_NOTICE(rechecking with PTHREAD_... options)
AC_CHECK_LIB(c, pthread_rwlock_init,
[AC_DEFINE(HAVE_PTHREAD_RWLOCK_INIT_IN_THREAD_LIB,1,[Define if pthread_rwlock_init is provided in the thread library.])])
LIBS="$old_LIBS"
CC="$old_CC"
CFLAGS="$old_CFLAGS"
])
dnl This is somewhat gross and should go away when the build system
dnl is revamped. -- tlyu
dnl DECLARE_SYS_ERRLIST - check for sys_errlist in libc
dnl
AC_DEFUN([DECLARE_SYS_ERRLIST],
[AC_CACHE_CHECK([for sys_errlist declaration], krb5_cv_decl_sys_errlist,
[AC_TRY_COMPILE([#include <stdio.h>
#include <errno.h>], [1+sys_nerr;],
krb5_cv_decl_sys_errlist=yes, krb5_cv_decl_sys_errlist=no)])
# assume sys_nerr won't be declared w/o being in libc
if test $krb5_cv_decl_sys_errlist = yes; then
AC_DEFINE(SYS_ERRLIST_DECLARED,1,[Define if sys_errlist is defined in errno.h])
AC_DEFINE(HAVE_SYS_ERRLIST,1,[Define if sys_errlist in libc])
else
# This means that sys_errlist is not declared in errno.h, but may still
# be in libc.
AC_CACHE_CHECK([for sys_errlist in libc], krb5_cv_var_sys_errlist,
[AC_TRY_LINK([extern int sys_nerr;], [if (1+sys_nerr < 0) return 1;],
krb5_cv_var_sys_errlist=yes, krb5_cv_var_sys_errlist=no;)])
if test $krb5_cv_var_sys_errlist = yes; then
AC_DEFINE(HAVE_SYS_ERRLIST,1,[Define if sys_errlist in libc])
# Do this cruft for backwards compatibility for now.
AC_DEFINE(NEED_SYS_ERRLIST,1,[Define if need to declare sys_errlist])
else
AC_MSG_WARN([sys_errlist is neither in errno.h nor in libc])
fi
fi])
dnl
dnl check for sigmask/sigprocmask -- CHECK_SIGPROCMASK
dnl
AC_DEFUN(CHECK_SIGPROCMASK,[
AC_MSG_CHECKING([for use of sigprocmask])
AC_CACHE_VAL(krb5_cv_func_sigprocmask_use,
[AC_TRY_LINK([#include <signal.h>], [sigprocmask(SIG_SETMASK,0,0);],
krb5_cv_func_sigprocmask_use=yes,
AC_TRY_LINK([#include <signal.h>], [sigmask(1);],
krb5_cv_func_sigprocmask_use=no, krb5_cv_func_sigprocmask_use=yes))])
AC_MSG_RESULT($krb5_cv_func_sigprocmask_use)
if test $krb5_cv_func_sigprocmask_use = yes; then
AC_DEFINE(USE_SIGPROCMASK,1,[Define if sigprocmask should be used])
fi
])dnl
dnl
AC_DEFUN(AC_PROG_ARCHIVE, [AC_CHECK_PROG(ARCHIVE, ar, ar cqv, false)])dnl
AC_DEFUN(AC_PROG_ARCHIVE_ADD, [AC_CHECK_PROG(ARADD, ar, ar cruv, false)])dnl
dnl
dnl check for <dirent.h> -- CHECK_DIRENT
dnl (may need to be more complex later)
dnl
AC_DEFUN(CHECK_DIRENT,[
AC_CHECK_HEADER(dirent.h,AC_DEFINE(USE_DIRENT_H,1,[Define if you have dirent.h functionality]))])dnl
dnl
dnl check if union wait is defined, or if WAIT_USES_INT -- CHECK_WAIT_TYPE
dnl
AC_DEFUN(CHECK_WAIT_TYPE,[
AC_MSG_CHECKING([if argument to wait is int *])
AC_CACHE_VAL(krb5_cv_struct_wait,
dnl Test for prototype clash - if there is none - then assume int * works
[AC_TRY_COMPILE([#include <sys/types.h>
#include <sys/wait.h>
extern pid_t wait(int *);],[], krb5_cv_struct_wait=no,dnl
dnl Else fallback on old stuff
[AC_TRY_COMPILE(
[#include <sys/wait.h>], [union wait i;
#ifdef WEXITSTATUS
WEXITSTATUS (i);
#endif
],
krb5_cv_struct_wait=yes, krb5_cv_struct_wait=no)])])
AC_MSG_RESULT($krb5_cv_struct_wait)
if test $krb5_cv_struct_wait = no; then
AC_DEFINE(WAIT_USES_INT,1,[Define if wait takes int as a argument])
fi
])dnl
dnl
dnl check for POSIX signal handling -- CHECK_SIGNALS
dnl
AC_DEFUN(CHECK_SIGNALS,[
AC_CHECK_FUNC(sigprocmask,
AC_MSG_CHECKING(for sigset_t and POSIX_SIGNALS)
AC_CACHE_VAL(krb5_cv_type_sigset_t,
[AC_TRY_COMPILE(
[#include <signal.h>],
[sigset_t x],
krb5_cv_type_sigset_t=yes, krb5_cv_type_sigset_t=no)])
AC_MSG_RESULT($krb5_cv_type_sigset_t)
if test $krb5_cv_type_sigset_t = yes; then
AC_DEFINE(POSIX_SIGNALS,1,[Define if POSIX signal handling is used])
fi
)])dnl
dnl
dnl check for signal type
dnl
dnl AC_RETSIGTYPE isn't quite right, but almost.
AC_DEFUN(KRB5_SIGTYPE,[
AC_MSG_CHECKING([POSIX signal handlers])
AC_CACHE_VAL(krb5_cv_has_posix_signals,
[AC_TRY_COMPILE(
[#include <sys/types.h>
#include <signal.h>
#ifdef signal
#undef signal
#endif
extern void (*signal ()) ();], [],
krb5_cv_has_posix_signals=yes, krb5_cv_has_posix_signals=no)])
AC_MSG_RESULT($krb5_cv_has_posix_signals)
if test $krb5_cv_has_posix_signals = yes; then
stype=void
AC_DEFINE(POSIX_SIGTYPE, 1, [Define if POSIX signal handlers are used])
else
if test $ac_cv_type_signal = void; then
stype=void
else
stype=int
fi
fi
AC_DEFINE_UNQUOTED(krb5_sigtype, $stype, [Define krb5_sigtype to type of signal handler])dnl
])dnl
dnl
dnl check for POSIX setjmp/longjmp -- CHECK_SETJMP
dnl
AC_DEFUN(CHECK_SETJMP,[
AC_CHECK_FUNC(sigsetjmp,
AC_MSG_CHECKING(for sigjmp_buf)
AC_CACHE_VAL(krb5_cv_struct_sigjmp_buf,
[AC_TRY_COMPILE(
[#include <setjmp.h>],[sigjmp_buf x],
krb5_cv_struct_sigjmp_buf=yes,krb5_cv_struct_sigjmp_buf=no)])
AC_MSG_RESULT($krb5_cv_struct_sigjmp_buf)
if test $krb5_cv_struct_sigjmp_buf = yes; then
AC_DEFINE(POSIX_SETJMP,1,[Define if setjmp indicates POSIX interface])
fi
)])dnl
dnl
dnl Check for IPv6 compile-time support.
dnl
AC_DEFUN(KRB5_AC_INET6,[
AC_CHECK_HEADERS(sys/types.h sys/socket.h netinet/in.h netdb.h)
AC_CHECK_FUNCS(inet_ntop inet_pton getnameinfo)
dnl getaddrinfo test needs netdb.h, for proper compilation on alpha
dnl under OSF/1^H^H^H^H^HDigital^H^H^H^H^H^H^HTru64 UNIX, where it's
dnl a macro
AC_MSG_CHECKING(for getaddrinfo)
AC_CACHE_VAL(ac_cv_func_getaddrinfo,
[AC_TRY_LINK([#ifdef HAVE_NETDB_H
#include <netdb.h>
#endif],[
struct addrinfo *ai;
getaddrinfo("kerberos.mit.edu", "echo", 0, &ai);
], ac_cv_func_getaddrinfo=yes, ac_cv_func_getaddrinfo=no)])
AC_MSG_RESULT($ac_cv_func_getaddrinfo)
if test $ac_cv_func_getaddrinfo = yes; then
AC_DEFINE(HAVE_GETADDRINFO,1,[Define if you have the getaddrinfo function])
fi
dnl
AC_REQUIRE([KRB5_SOCKADDR_SA_LEN])dnl
AC_ARG_ENABLE([ipv6], , AC_MSG_WARN(enable/disable-ipv6 option is deprecated))dnl
AC_MSG_CHECKING(for IPv6 compile-time support)
AC_CACHE_VAL(krb5_cv_inet6,[
if test "$ac_cv_func_inet_ntop" != "yes" ; then
krb5_cv_inet6=no
else
AC_TRY_COMPILE([
#ifdef HAVE_SYS_TYPES_H
#include <sys/types.h>
#endif
#include <sys/socket.h>
#include <netinet/in.h>
#include <netdb.h>
],[
struct sockaddr_in6 in;
AF_INET6;
IN6_IS_ADDR_LINKLOCAL (&in.sin6_addr);
],krb5_cv_inet6=yes,krb5_cv_inet6=no)])
fi
AC_MSG_RESULT($krb5_cv_inet6)
if test "$krb5_cv_inet6" = no && test "$ac_cv_func_inet_ntop" = yes; then
AC_MSG_CHECKING(for IPv6 compile-time support with -DINET6)
AC_CACHE_VAL(krb5_cv_inet6_with_dinet6,[
old_CC="$CC"
CC="$CC -DINET6"
AC_TRY_COMPILE([
#ifdef HAVE_SYS_TYPES_H
#include <sys/types.h>
#endif
#include <sys/socket.h>
#include <netinet/in.h>
#include <netdb.h>
],[
struct sockaddr_in6 in;
AF_INET6;
IN6_IS_ADDR_LINKLOCAL (&in.sin6_addr);
],krb5_cv_inet6_with_dinet6=yes,krb5_cv_inet6_with_dinet6=no)
CC="$old_CC"])
AC_MSG_RESULT($krb5_cv_inet6_with_dinet6)
fi
if test $krb5_cv_inet6 = yes || test "$krb5_cv_inet6_with_dinet6" = yes; then
if test "$krb5_cv_inet6_with_dinet6" = yes; then
AC_DEFINE(INET6,1,[May need to be defined to enable IPv6 support, for example on IRIX])
fi
AC_DEFINE(KRB5_USE_INET6,1,[Define if we should compile in IPv6 support (even if we can't use it at run time)])
fi
])dnl
dnl
AC_DEFUN(KRB5_AC_CHECK_FOR_CFLAGS,[
AC_BEFORE([$0],[AC_PROG_CC])
AC_BEFORE([$0],[AC_PROG_CXX])
krb5_ac_cflags_set=${CFLAGS+set}
krb5_ac_cxxflags_set=${CXXFLAGS+set}
krb5_ac_warn_cflags_set=${WARN_CFLAGS+set}
krb5_ac_warn_cxxflags_set=${WARN_CXXFLAGS+set}
])
dnl
AC_DEFUN(TRY_WARN_CC_FLAG,[dnl
cachevar=`echo "krb5_cv_cc_flag_$1" | sed s/[[^a-zA-Z0-9_]]/_/g`
AC_CACHE_CHECK([if C compiler supports $1], [$cachevar],
[# first try without, then with
AC_TRY_COMPILE([], 1;,
[old_cflags="$CFLAGS"
CFLAGS="$CFLAGS $1"
AC_TRY_COMPILE([], 1;, eval $cachevar=yes, eval $cachevar=no)
CFLAGS="$old_cflags"],
[AC_MSG_ERROR(compiling simple test program with $CFLAGS failed)])])
if eval test '"${'$cachevar'}"' = yes; then
WARN_CFLAGS="$WARN_CFLAGS $1"
fi
eval flag_supported='${'$cachevar'}'
])dnl
dnl
AC_DEFUN(WITH_CC,[dnl
AC_REQUIRE([KRB5_AC_CHECK_FOR_CFLAGS])dnl
AC_REQUIRE([AC_PROG_CC])dnl
AC_REQUIRE([AC_PROG_CXX])dnl
if test $ac_cv_c_compiler_gnu = yes ; then
HAVE_GCC=yes
else HAVE_GCC=
fi
AC_SUBST(HAVE_GCC)
AC_CACHE_CHECK([for GNU linker], krb5_cv_prog_gnu_ld,
[krb5_cv_prog_gnu_ld=no
if test "$GCC" = yes; then
if AC_TRY_COMMAND([$CC -Wl,-v 2>&1 dnl
| grep "GNU ld" > /dev/null]); then
krb5_cv_prog_gnu_ld=yes
fi
fi])
AC_ARG_WITH([size-optimizations],
[ --with-size-optimizations enable a few optimizations to reduce code size
possibly at some run-time cost],
,
withval=no)
if test "$withval" = yes; then
AC_DEFINE(CONFIG_SMALL,1,[Define to reduce code size even if it means more cpu usage])
fi
# -Wno-long-long, if needed, for k5-platform.h without inttypes.h etc.
extra_gcc_warn_opts="-Wall -Wcast-align -Wshadow"
# -Wmissing-prototypes
if test "$GCC" = yes ; then
# Putting this here means we get -Os after -O2, which works.
if test "$with_size_optimizations" = yes && test "x$krb5_ac_cflags_set" != xset; then
AC_MSG_NOTICE(adding -Os optimization option)
case "$CFLAGS" in
"-g -O2") CFLAGS="-g -Os" ;;
"-O2") CFLAGS="-Os" ;;
*) CFLAGS="$CFLAGS -Os" ;;
esac
fi
if test "x$krb5_ac_warn_cflags_set" = xset ; then
AC_MSG_NOTICE(not adding extra gcc warning flags because WARN_CFLAGS was set)
else
AC_MSG_NOTICE(adding extra warning flags for gcc)
WARN_CFLAGS="$WARN_CFLAGS $extra_gcc_warn_opts -Wmissing-prototypes"
if test "`uname -s`" = Darwin ; then
AC_MSG_NOTICE(skipping pedantic warnings on Darwin)
elif test "`uname -s`" = Linux ; then
AC_MSG_NOTICE(skipping pedantic warnings on Linux)
else
WARN_CFLAGS="$WARN_CFLAGS -pedantic"
fi
if test "$ac_cv_cxx_compiler_gnu" = yes; then
if test "x$krb5_ac_warn_cxxflags_set" = xset ; then
AC_MSG_NOTICE(not adding extra g++ warnings because WARN_CXXFLAGS was set)
else
AC_MSG_NOTICE(adding extra warning flags for g++)
WARN_CXXFLAGS="$WARN_CXXFLAGS $extra_gcc_warn_opts"
fi
fi
# Currently, G++ does not support -Wno-format-zero-length.
TRY_WARN_CC_FLAG(-Wno-format-zero-length)
# Other flags here may not be supported on some versions of
# gcc that people want to use.
for flag in overflow strict-overflow missing-format-attribute missing-prototypes return-type missing-braces parentheses switch unused-function unused-label unused-variable unused-value unknown-pragmas sign-compare newline-eof ; do
TRY_WARN_CC_FLAG(-W$flag)
done
# old-style-definition? generates many, many warnings
#
# Warnings that we'd like to turn into errors on versions of gcc
# that support promoting only specific warnings to errors, but
# we'll take as warnings on older compilers. (If such a warning
# is added after the -Werror=foo feature, you can just put
# error=foo in the above list, and skip the test for the
# warning-only form.) At least in some versions, -Werror= doesn't
# seem to make the conditions actual errors, but still issues
# warnings; I guess we'll take what we can get.
#
# We're currently targeting C89+, not C99, so disallow some
# constructs.
for flag in declaration-after-statement variadic-macros ; do
TRY_WARN_CC_FLAG(-Werror=$flag)
if test "$flag_supported" = no; then
TRY_WARN_CC_FLAG(-W$flag)
fi
done
# missing-prototypes? maybe someday
#
fi
if test "`uname -s`" = Darwin ; then
# Someday this should be a feature test.
# One current (Jaguar = OS 10.2) problem:
# Archive library with foo.o undef sym X and bar.o common sym X,
# if foo.o is pulled in at link time, bar.o may not be, causing
# the linker to complain.
# Dynamic library problems too?
case "$CC $CFLAGS" in
*-fcommon*) ;; # why someone would do this, I don't know
*-fno-common*) ;; # okay, they're already doing the right thing
*)
AC_MSG_NOTICE(disabling the use of common storage on Darwin)
CFLAGS="$CFLAGS -fno-common"
;;
esac
case "$LD $LDFLAGS" in
*-Wl,-search_paths_first*) ;;
*) LDFLAGS="${LDFLAGS} -Wl,-search_paths_first" ;;
esac
fi
else
if test "`uname -s`" = AIX ; then
# Using AIX but not GCC, assume native compiler.
# The native compiler appears not to give a nonzero exit
# status for certain classes of errors, like missing arguments
# in function calls. Let's try to fix that with -qhalt=e.
case "$CC $CFLAGS" in
*-qhalt=*) ;;
*)
CFLAGS="$CFLAGS -qhalt=e"
AC_MSG_NOTICE(adding -qhalt=e for better error reporting)
;;
esac
# Also, the optimizer isn't turned on by default, which means
# the static inline functions get left in random object files,
# leading to references to pthread_mutex_lock from anything that
# includes k5-int.h whether it uses threads or not.
case "$CC $CFLAGS" in
*-O*) ;;
*)
CFLAGS="$CFLAGS -O"
AC_MSG_NOTICE(adding -O for inline thread-support function elimination)
;;
esac
fi
if test "`uname -s`" = SunOS ; then
# Using Solaris but not GCC, assume Sunsoft compiler.
# We have some error-out-on-warning options available.
# Sunsoft 12 compiler defaults to -xc99=all, it appears, so "inline"
# works, but it also means that declaration-in-code warnings won't
# be issued.
# -v -fd -errwarn=E_DECLARATION_IN_CODE ...
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"
WARN_CXXFLAGS="-errtags=yes +w +w2 -xport64"
fi
fi
AC_SUBST(WARN_CFLAGS)
AC_SUBST(WARN_CXXFLAGS)
])dnl
dnl
dnl
dnl check for yylineno -- HAVE_YYLINENO
dnl
AC_DEFUN(HAVE_YYLINENO,[dnl
AC_REQUIRE_CPP()AC_REQUIRE([AC_PROG_LEX])dnl
AC_MSG_CHECKING([for yylineno declaration])
AC_CACHE_VAL(krb5_cv_type_yylineno,
# some systems have yylineno, others don't...
echo '%%
%%' | ${LEX} -t > conftest.out
if egrep yylineno conftest.out >/dev/null 2>&1; then
krb5_cv_type_yylineno=yes
else
krb5_cv_type_yylineno=no
fi
rm -f conftest.out)
AC_MSG_RESULT($krb5_cv_type_yylineno)
if test $krb5_cv_type_yylineno = no; then
AC_DEFINE(NO_YYLINENO, 1, [Define if lex produes code with yylineno])
fi
])dnl
dnl
dnl K5_GEN_MAKEFILE([dir, [frags]])
dnl
AC_DEFUN(K5_GEN_MAKEFILE,[dnl
ifelse($1, ,[_K5_GEN_MAKEFILE(.,$2)],[_K5_GEN_MAKEFILE($1,$2)])
])
dnl
dnl _K5_GEN_MAKEFILE(dir, [frags])
dnl dir must be present in this case
dnl Note: Be careful in quoting.
dnl The ac_foreach generates the list of fragments to include
dnl or "" if $2 is empty
AC_DEFUN(_K5_GEN_MAKEFILE,[dnl
AC_CONFIG_FILES([$1/Makefile:$srcdir/]K5_TOPDIR[/config/pre.in:$1/Makefile.in:$1/deps:$srcdir/]K5_TOPDIR[/config/post.in])
])
dnl
dnl K5_GEN_FILE( <ac_output arguments> )
dnl
AC_DEFUN(K5_GEN_FILE,[AC_CONFIG_FILES($1)])dnl
dnl
dnl K5_AC_OUTPUT
dnl Note: Adds the variables to config.status for individual
dnl Makefile generation from config.status
AC_DEFUN(K5_AC_OUTPUT,[AC_OUTPUT])dnl
dnl
dnl V5_AC_OUTPUT_MAKEFILE
dnl
AC_DEFUN(V5_AC_OUTPUT_MAKEFILE,
[ifelse($1, , [_V5_AC_OUTPUT_MAKEFILE(.,$2)],[_V5_AC_OUTPUT_MAKEFILE($1,$2)])])
dnl
define(_V5_AC_OUTPUT_MAKEFILE,
[ifelse($2, , ,AC_CONFIG_FILES($2))
AC_FOREACH([DIR], [$1],dnl
[AC_CONFIG_FILES(DIR[/Makefile:$srcdir/]K5_TOPDIR[/config/pre.in:]DIR[/Makefile.in:]DIR[/deps:$srcdir/]K5_TOPDIR[/config/post.in])])
K5_AC_OUTPUT])dnl
dnl
dnl
dnl KRB5_SOCKADDR_SA_LEN: define HAVE_SA_LEN if sockaddr contains the sa_len
dnl component
dnl
AC_DEFUN([KRB5_SOCKADDR_SA_LEN],[ dnl
AC_CHECK_MEMBER(struct sockaddr.sa_len,
AC_DEFINE(HAVE_SA_LEN,1,[Define if struct sockaddr contains sa_len])
,,[#include <sys/types.h>
#include <sys/socket.h>])])
dnl
dnl WITH_NETLIB
dnl
dnl
AC_DEFUN(WITH_NETLIB,[
AC_ARG_WITH([netlib],
AC_HELP_STRING([--with-netlib=LIBS], use user defined resolver library),
[ if test "$withval" = yes -o "$withval" = no ; then
AC_MSG_RESULT("netlib will link with C library resolver only")
else
LIBS="$LIBS $withval"
AC_MSG_RESULT("netlib will use \'$withval\'")
fi
],dnl
[AC_LIBRARY_NET]
)])dnl
dnl
dnl
AC_DEFUN(KRB5_AC_NEED_DAEMON, [
KRB5_NEED_PROTO([#ifdef HAVE_UNISTD_H
#include <unistd.h>
#endif],daemon,1)])dnl
dnl
dnl Check if stdarg or varargs is available *and compiles*; prefer stdarg.
dnl (This was sent to djm for incorporation into autoconf 3/12/1996. KR)
dnl
AC_DEFUN(AC_HEADER_STDARG, [
AC_MSG_CHECKING([for stdarg.h])
AC_CACHE_VAL(ac_cv_header_stdarg_h,
[AC_TRY_COMPILE([#include <stdarg.h>], [
} /* ac_try_compile will have started a function body */
int aoeu (char *format, ...) {
va_list v;
int i;
va_start (v, format);
i = va_arg (v, int);
va_end (v);
],ac_cv_header_stdarg_h=yes,ac_cv_header_stdarg_h=no)])dnl
AC_MSG_RESULT($ac_cv_header_stdarg_h)
if test $ac_cv_header_stdarg_h = yes; then
AC_DEFINE(HAVE_STDARG_H, 1, [Define if stdarg available and compiles])
else
AC_MSG_CHECKING([for varargs.h])
AC_CACHE_VAL(ac_cv_header_varargs_h,
[AC_TRY_COMPILE([#include <varargs.h>],[
} /* ac_try_compile will have started a function body */
int aoeu (va_alist) va_dcl {
va_list v;
int i;
va_start (v);
i = va_arg (v, int);
va_end (v);
],ac_cv_header_varargs_h=yes,ac_cv_header_varargs_h=no)])dnl
AC_MSG_RESULT($ac_cv_header_varargs_h)
if test $ac_cv_header_varargs_h = yes; then
AC_DEFINE(HAVE_VARARGS_H, 1, [Define if varargs available and compiles])
else
AC_MSG_ERROR(Neither stdarg nor varargs compile?)
fi
fi dnl stdarg test failure
])dnl
dnl
dnl KRB5_AC_NEED_LIBGEN --- check if libgen needs to be linked in for
dnl compile/step
dnl
dnl
AC_DEFUN(KRB5_AC_NEED_LIBGEN,[
AC_REQUIRE([AC_PROG_CC])dnl
dnl
dnl regcomp is present but non-functional on Solaris 2.4
dnl
AC_MSG_CHECKING(for working regcomp)
AC_CACHE_VAL(ac_cv_func_regcomp,[
AC_TRY_RUN([
#include <sys/types.h>
#include <regex.h>
regex_t x; regmatch_t m;
int main() { return regcomp(&x,"pat.*",0) || regexec(&x,"pattern",1,&m,0); }
], ac_cv_func_regcomp=yes, ac_cv_func_regcomp=no, AC_MSG_ERROR([Cannot test regcomp when cross compiling]))])
AC_MSG_RESULT($ac_cv_func_regcomp)
test $ac_cv_func_regcomp = yes && AC_DEFINE(HAVE_REGCOMP,1,[Define if regcomp exists and functions])
dnl
dnl Check for the compile and step functions - only if regcomp is not available
dnl
if test $ac_cv_func_regcomp = no; then
save_LIBS="$LIBS"
LIBS=-lgen
dnl this will fail if there's no compile/step in -lgen, or if there's
dnl no -lgen. This is fine.
AC_CHECK_FUNCS(compile step)
LIBS="$save_LIBS"
dnl
dnl Set GEN_LIB if necessary
dnl
AC_CHECK_LIB(gen, compile, GEN_LIB=-lgen, GEN_LIB=)
AC_SUBST(GEN_LIB)
fi
])
dnl
dnl KRB5_AC_REGEX_FUNCS --- check for different regular expression
dnl support functions
dnl
AC_DEFUN(KRB5_AC_REGEX_FUNCS,[
AC_CHECK_FUNCS(re_comp re_exec regexec)
AC_REQUIRE([KRB5_AC_NEED_LIBGEN])dnl
])dnl
dnl
dnl AC_KRB5_TCL_FIND_CONFIG (uses tcl_dir)
dnl
AC_DEFUN(AC_KRB5_TCL_FIND_CONFIG,[
AC_REQUIRE([KRB5_LIB_AUX])dnl
AC_MSG_CHECKING(for tclConfig.sh)
dnl On Debian, we might be given --with-tcl=/usr, or tclsh might
dnl point us to /usr/lib/tcl8.4; either way, we need to find
dnl /usr/lib/tcl8.4/tclConfig.sh.
dnl On NetBSD, we might be given --with-tcl=/usr/pkg, or tclsh
dnl might point us to /usr/pkg/lib/tcl8.4; we need to find
dnl /usr/pkg/lib/tclConfig.sh.
if test -r "$tcl_dir/lib/tclConfig.sh" ; then
tcl_conf="$tcl_dir/lib/tclConfig.sh"
elif test -r "$tcl_dir/tclConfig.sh" ; then
tcl_conf="$tcl_dir/tclConfig.sh"
elif test -r "$tcl_dir/../tclConfig.sh" ; then
tcl_conf="$tcl_dir/../tclConfig.sh"
else
tcl_conf=
lib="$tcl_dir/lib"
changequote(<<,>>)dnl
for d in "$lib" "$lib"/tcl7.[0-9] "$lib"/tcl8.[0-9] ; do
if test -r "$d/tclConfig.sh" ; then
tcl_conf="$tcl_conf $d/tclConfig.sh"
fi
done
changequote([,])dnl
fi
if test -n "$tcl_conf" ; then
AC_MSG_RESULT($tcl_conf)
else
AC_MSG_RESULT(not found)
fi
tcl_ok_conf=
tcl_vers_maj=
tcl_vers_min=
old_CPPFLAGS=$CPPFLAGS
old_LIBS=$LIBS
old_LDFLAGS=$LDFLAGS
if test -n "$tcl_conf" ; then
for file in $tcl_conf ; do
TCL_MAJOR_VERSION=x ; TCL_MINOR_VERSION=x
AC_MSG_CHECKING(Tcl info in $file)
. $file
v=$TCL_MAJOR_VERSION.$TCL_MINOR_VERSION
if test -z "$tcl_vers_maj" \
|| test "$tcl_vers_maj" -lt "$TCL_MAJOR_VERSION" \
|| test "$tcl_vers_maj" = "$TCL_MAJOR_VERSION" -a "$tcl_vers_min" -lt "$TCL_MINOR_VERSION" ; then
for incdir in "$TCL_PREFIX/include/tcl$v" "$TCL_PREFIX/include" ; do
if test -r "$incdir/tcl.h" -o -r "$incdir/tcl/tcl.h" ; then
CPPFLAGS="$old_CPPFLAGS -I$incdir"
break
fi
done
LIBS="$old_LIBS `eval echo x $TCL_LIB_SPEC $TCL_LIBS | sed 's/^x//'`"
LDFLAGS="$old_LDFLAGS $TCL_LD_FLAGS"
AC_TRY_LINK( , [Tcl_CreateInterp ();],
tcl_ok_conf=$file
tcl_vers_maj=$TCL_MAJOR_VERSION
tcl_vers_min=$TCL_MINOR_VERSION
AC_MSG_RESULT($v - working),
AC_MSG_RESULT($v - compilation failed)
)
else
AC_MSG_RESULT(older version $v)
fi
done
fi
CPPFLAGS=$old_CPPFLAGS
LIBS=$old_LIBS
LDFLAGS=$old_LDFLAGS
tcl_header=no
tcl_lib=no
if test -n "$tcl_ok_conf" ; then
. $tcl_ok_conf
TCL_INCLUDES=
for incdir in "$TCL_PREFIX/include/tcl$v" "$TCL_PREFIX/include" ; do
if test -r "$incdir/tcl.h" -o -r "$incdir/tcl/tcl.h" ; then
if test "$incdir" != "/usr/include" ; then
TCL_INCLUDES=-I$incdir
fi
break
fi
done
# Need eval because the first-level expansion could reference
# variables like ${TCL_DBGX}.
eval TCL_LIBS='"'$TCL_LIB_SPEC $TCL_LIBS $TCL_DL_LIBS'"'
TCL_LIBPATH="-L$TCL_EXEC_PREFIX/lib"
TCL_RPATH=":$TCL_EXEC_PREFIX/lib"
if test "$DEPLIBEXT" != "$SHLIBEXT" && test -n "$RPATH_FLAG"; then
TCL_MAYBE_RPATH='$(RPATH_FLAG)'"$TCL_EXEC_PREFIX/lib$RPATH_TAIL"
else
TCL_MAYBE_RPATH=
fi
CPPFLAGS="$old_CPPFLAGS $TCL_INCLUDES"
AC_CHECK_HEADER(tcl.h,AC_DEFINE(HAVE_TCL_H,1,[Define if tcl.h is available]) tcl_header=yes)
if test $tcl_header=no; then
AC_CHECK_HEADER(tcl/tcl.h,AC_DEFINE(HAVE_TCL_TCL_H,1,[Define if tcl/tcl.h is available]) tcl_header=yes)
fi
CPPFLAGS="$old_CPPFLAGS"
tcl_lib=yes
else
# If we read a tclConfig.sh file, it probably set this.
TCL_LIBS=
fi
AC_SUBST(TCL_INCLUDES)
AC_SUBST(TCL_LIBS)
AC_SUBST(TCL_LIBPATH)
AC_SUBST(TCL_RPATH)
AC_SUBST(TCL_MAYBE_RPATH)
])dnl
dnl
dnl AC_KRB5_TCL_TRYOLD
dnl attempt to use old search algorithm for locating tcl
dnl
AC_DEFUN(AC_KRB5_TCL_TRYOLD, [
AC_REQUIRE([KRB5_AC_FIND_DLOPEN])
AC_MSG_WARN([trying old tcl search code])
if test "$with_tcl" != yes -a "$with_tcl" != no; then
TCL_INCLUDES=-I$with_tcl/include
TCL_LIBPATH=-L$with_tcl/lib
TCL_RPATH=:$with_tcl/lib
fi
if test "$with_tcl" != no ; then
krb5_save_CPPFLAGS="$CPPFLAGS"
krb5_save_LDFLAGS="$LDFLAGS"
CPPFLAGS="$CPPFLAGS $TCL_INCLUDES"
LDFLAGS="$LDFLAGS $TCL_LIBPATH"
tcl_header=no
AC_CHECK_HEADER(tcl.h,AC_DEFINE(HAVE_TCL_H,1,[Define if tcl.h found]) tcl_header=yes)
if test $tcl_header=no; then
AC_CHECK_HEADER(tcl/tcl.h,AC_DEFINE(HAVE_TCL_TCL_H,1,[Define if tcl/tcl.h found]) tcl_header=yes)
fi
if test $tcl_header = yes ; then
tcl_lib=no
if test $tcl_lib = no; then
AC_CHECK_LIB(tcl8.0, Tcl_CreateCommand,
TCL_LIBS="$TCL_LIBS -ltcl8.0 -lm $DL_LIB $LIBS"
tcl_lib=yes,,-lm $DL_LIB)
fi
if test $tcl_lib = no; then
AC_CHECK_LIB(tcl7.6, Tcl_CreateCommand,
TCL_LIBS="$TCL_LIBS -ltcl7.6 -lm $DL_LIB $LIBS"
tcl_lib=yes,,-lm $DL_LIB)
fi
if test $tcl_lib = no; then
AC_CHECK_LIB(tcl7.5, Tcl_CreateCommand,
TCL_LIBS="$TCL_LIBS -ltcl7.5 -lm $DL_LIB $LIBS"
tcl_lib=yes,,-lm $DL_LIB)
fi
if test $tcl_lib = no ; then
AC_CHECK_LIB(tcl, Tcl_CreateCommand,
TCL_LIBS="$TCL_LIBS -ltcl -lm $DL_LIB $LIBS"
tcl_lib=yes,,-lm $DL_LIB)
fi
if test $tcl_lib = no ; then
AC_MSG_WARN("tcl.h found but not library")
fi
else
AC_MSG_WARN(Could not find Tcl which is needed for the kadm5 tests)
TCL_LIBS=
fi
CPPFLAGS="$krb5_save_CPPFLAGS"
LDFLAGS="$krb5_save_LDFLAGS"
AC_SUBST(TCL_INCLUDES)
AC_SUBST(TCL_LIBS)
AC_SUBST(TCL_LIBPATH)
AC_SUBST(TCL_RPATH)
else
AC_MSG_RESULT("Not looking for Tcl library")
fi
])dnl
dnl
dnl AC_KRB5_TCL - determine if the TCL library is present on system
dnl
AC_DEFUN(AC_KRB5_TCL,[
TCL_INCLUDES=
TCL_LIBPATH=
TCL_RPATH=
TCL_LIBS=
TCL_WITH=
tcl_dir=
AC_ARG_WITH(tcl,
[ --with-tcl=path where Tcl resides], , with_tcl=try)
if test "$with_tcl" = no ; then
true
elif test "$with_tcl" = yes -o "$with_tcl" = try ; then
tcl_dir=/usr