389 lines
13 KiB
Plaintext
389 lines
13 KiB
Plaintext
dnl configure.in for cvs
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AC_INIT(src/cvs.h)
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dnl
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AC_PREREQ(2.4)dnl Required Autoconf version.
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dnl Do not use autoconf 2.12; it produces a configure script which produces
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dnl a "internal 2K buffer" error on HPUX when run with /bin/sh.
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dnl autoconf 2.10 seems like a good choice.
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dnl
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dnl It is possible that we should just change the above required version
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dnl to 2.10; it seems like everyone is using 2.10 anyway, and there is
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dnl at least some sentiment that we should be using a version which has
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dnl --bindir (and correspondingly, using @bindir@ and friends in our
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dnl Makefile.in files. Rumor has it that autoconf 2.7
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dnl introduced --bindir but the point is that 2.10 has it.
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AC_CONFIG_HEADER(config.h src/options.h)
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AC_PROG_CC
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AC_AIX
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AC_MINIX
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AC_ISC_POSIX
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if test "$ISC" = yes; then
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CFLAGS="$CFLAGS -D_SYSV3"
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LIBS="-lcrypt $LIBS"
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fi
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AC_PREFIX_PROGRAM(cvs)
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dnl FIXME: AC_C_CROSS is considered obsolete by autoconf 2.12, and is
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dnl pretty ugly to start with. But it isn't obvious to me how we should
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dnl be handling the uses of cross_compiling below.
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AC_C_CROSS
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AC_C_CONST
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AC_PROG_INSTALL
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AC_PROG_RANLIB
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AC_PROG_YACC
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AC_PROG_MAKE_SET
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AC_PATH_PROG(perl_path, perl, no)
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AC_PATH_PROG(csh_path, csh, no)
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AC_SYS_INTERPRETER
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if test X"$ac_cv_sys_interpreter" != X"yes" ; then
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# silly trick to avoid problems in AC macros...
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ac_msg='perl scripts using #! may not be invoked properly'
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AC_MSG_WARN($ac_msg)
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fi
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AC_HEADER_STDC
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AC_CHECK_HEADERS(errno.h unistd.h string.h memory.h utime.h fcntl.h ndbm.h \
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limits.h sys/file.h \
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sys/param.h sys/select.h sys/time.h sys/timeb.h \
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io.h direct.h sys/bsdtypes.h sys/resource.h)
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AC_HEADER_SYS_WAIT
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AC_HEADER_STAT
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AC_HEADER_TIME
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AC_HEADER_DIRENT
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AC_TYPE_SIGNAL
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AC_TYPE_UID_T
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AC_TYPE_MODE_T
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AC_TYPE_SIZE_T
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AC_TYPE_PID_T
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AC_STRUCT_ST_BLKSIZE
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AC_REPLACE_FUNCS(mkdir rename strstr dup2 strerror valloc waitpid memmove vasprintf strtoul)
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AC_CHECK_FUNCS(fchmod fsync ftime mktemp putenv vprintf ftruncate timezone getpagesize initgroups fchdir sigaction sigprocmask sigvec sigsetmask sigblock tempnam tzset readlink wait3)
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dnl
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dnl The CVS coding standard (as specified in HACKING) is that if it exists
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dnl in SunOS4 and ANSI, we use it. CVS itself, of course, therefore doesn't
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dnl need HAVE_* defines for such functions, but diff wants them.
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dnl
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AC_DEFINE(HAVE_STRCHR)
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AC_DEFINE(HAVE_MEMCHR)
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dnl
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dnl AC_FUNC_VFORK is rather baroque. It seems to be rather more picky
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dnl than, say, the Single Unix Specification (version 2), which simplifies
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dnl a lot of cases by saying that the child process can't set any variables
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dnl (thus avoiding problems with register allocation) or call any functions
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dnl (thus avoiding problems with whether file descriptors are shared).
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dnl It would be nice if we could just write to the Single Unix Specification.
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dnl I think the only way to do redirection this way is by doing it in the
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dnl parent, and then undoing it afterwards (analogous to windows-NT/run.c).
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dnl That would appear to have a race condition if the user hits ^C (or
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dnl some other signal) at the wrong time, as main_cleanup will try to use
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dnl stdout/stderr. So maybe we are stuck with AC_FUNC_VFORK.
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dnl
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AC_FUNC_VFORK
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AC_FUNC_CLOSEDIR_VOID
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dnl
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dnl Check for shadow password support.
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dnl
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dnl We used to try to determine whether shadow passwords were actually in
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dnl use or not, but the code has been changed to work right reguardless,
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dnl so we can go back to a simple check.
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AC_CHECK_LIB(sec, getspnam)
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AC_CHECK_FUNCS(getspnam)
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dnl We always use CVS's regular expression matcher.
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dnl This is because:
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dnl (1) If memory serves, the syntax of the regular expressions
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dnl handled by re_exec is not consistent from system to system, which
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dnl is a Bad Thing because CVS passes this syntax out to the user.
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dnl We might have better luck with the POSIX interface, if we really
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dnl want to look for a system-supplied matcher.
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dnl (2) It is necessary to make _sure_ that we get a regex.h and regex.c
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dnl that match each other. In particular, rx and the CVS/emacs
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dnl regex.c have a different "struct re_pattern_buffer" and so using
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dnl the system regex.h and our regex.c, or vice versa, will tend to
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dnl cause a core dump.
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dnl (3) Just as a random data point, CVS uses re_exec (a BSD interface);
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dnl libdiff uses re_compile_pattern (a GNU interface, I think). Diff
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dnl should probably be fixed to have the caller (CVS) supply the regexp
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dnl matching.
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dnl
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dnl AC_CHECK_FUNC(re_exec, :, LIBOBJS="$LIBOBJS regex.o")
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AC_FUNC_UTIME_NULL
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AC_SYS_LONG_FILE_NAMES
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AC_MSG_CHECKING([for working fnmatch function])
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AC_CACHE_VAL(ccvs_cv_sys_working_fnmatch,
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[AC_TRY_RUN([
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#include <fnmatch.h>
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int
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main ()
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{
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exit ((fnmatch ("a", "a", FNM_PATHNAME) == 0
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&& fnmatch ("a", "b", FNM_PATHNAME) == FNM_NOMATCH)
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? 0 : 1);
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}],
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ccvs_cv_sys_working_fnmatch=yes,
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ccvs_cv_sys_working_fnmatch=no,
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ccvs_cv_sys_working_fnmatch=no)])
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if test $ccvs_cv_sys_working_fnmatch = no; then
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LIBOBJS="$LIBOBJS fnmatch.o"
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fi
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AC_MSG_RESULT($ccvs_cv_sys_working_fnmatch)
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# If we can't find connect, try looking in -lsocket, -lnsl, and -linet.
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# The Irix 5 libc.so has connect and gethostbyname, but Irix 5 also has
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# libsocket.so which has a bad implementation of gethostbyname (it
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# only looks in /etc/hosts), so we only look for -lsocket if we need
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# it.
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AC_CHECK_FUNC(connect, :,
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[case "$LIBS" in
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*-lnsl*) ;;
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*) AC_CHECK_LIB(nsl_s, printf) ;;
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esac
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case "$LIBS" in
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*-lnsl*) ;;
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*) AC_CHECK_LIB(nsl, printf) ;;
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esac
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case "$LIBS" in
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*-lsocket*) ;;
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*) AC_CHECK_LIB(socket, connect) ;;
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esac
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case "$LIBS" in
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*-linet*) ;;
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*) AC_CHECK_LIB(inet, connect) ;;
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esac
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dnl We can't just call AC_CHECK_FUNCS(connect) here, because the value
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dnl has been cached.
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if test "$ac_cv_lib_socket_connect" = "yes" || test "$ac_cv_lib_inet_connect" = "yes"; then
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ac_cv_func_connect=yes
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AC_DEFINE(HAVE_CONNECT)
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fi])
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dnl
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dnl set $(KRB4) from --with-krb4=value -- WITH_KRB4
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dnl
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dnl If you change this, keep in mind that some systems have a bogus
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dnl libkrb in the system libraries, so --with-krb4=value needs to
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dnl override the system -lkrb.
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dnl
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KRB4=/usr/kerberos
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define(WITH_KRB4,[
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AC_ARG_WITH([krb4],
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[ --with-krb4=value set default \$(KRB4) from value],
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[KRB4=$withval],
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)dnl
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echo "default place for krb4 is $KRB4"
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AC_SUBST(KRB4)])dnl
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WITH_KRB4
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krb_h=
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AC_MSG_CHECKING([for krb.h])
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if test "$cross_compiling" != yes && test -r $KRB4/include/krb.h; then
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hold_cflags=$CFLAGS
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CFLAGS="$CFLAGS -I$KRB4/include"
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AC_TRY_LINK([#include <krb.h>],[int i;],
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[krb_h=yes krb_incdir=$KRB4/include],
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[CFLAGS=$hold_cflags
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AC_TRY_LINK([#include <krb.h>],[int i;],
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[krb_h=yes krb_incdir=])])
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CFLAGS=$hold_cflags
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else
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AC_TRY_LINK([#include <krb.h>],[int i;],
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[krb_h=yes krb_incdir=])
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fi
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if test -z "$krb_h"; then
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AC_TRY_LINK([#include <krb.h>],[int i;],
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[krb_h=yes krb_incdir=],
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[if test "$cross_compiling" != yes && test -r $KRB4/include/kerberosIV/krb.h; then
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hold_cflags=$CFLAGS
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CFLAGS="$CFLAGS -I$KRB4/include/kerberosIV"
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AC_TRY_LINK([#include <krb.h>],[int i;],
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[krb_h=yes krb_incdir=$KRB4/include/kerberosIV])
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CFLAGS=$hold_cflags
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fi])
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fi
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AC_MSG_RESULT($krb_h)
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includeopt=
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AC_SUBST(includeopt)
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if test -n "$krb_h"; then
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krb_lib=
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if test "$cross_compiling" != yes && test -r $KRB4/lib/libkrb.a; then
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hold_ldflags=$LDFLAGS
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LDFLAGS="-L${KRB4}/lib $LDFLAGS"
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AC_CHECK_LIB(krb,printf,[krb_lib=yes krb_libdir=${KRB4}/lib],
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[LDFLAGS=$hold_ldflags
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# Using open here instead of printf so we don't
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# get confused by the cached value for printf from above.
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AC_CHECK_LIB(krb,open,[krb_lib=yes krb_libdir=])])
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LDFLAGS=$hold_ldflags
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else
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AC_CHECK_LIB(krb,printf,[krb_lib=yes krb_libdir=])
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fi
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if test -n "$krb_lib"; then
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AC_DEFINE(HAVE_KERBEROS)
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test -n "${krb_libdir}" && LIBS="${LIBS} -L${krb_libdir}"
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LIBS="${LIBS} -lkrb"
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# Put -L${krb_libdir} in LDFLAGS temporarily so that it appears before
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# -ldes in the command line. Don't do it permanently so that we honor
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# the user's setting for LDFLAGS
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hold_ldflags=$LDFLAGS
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test -n "${krb_libdir}" && LDFLAGS="$LDFLAGS -L${krb_libdir}"
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AC_CHECK_LIB(des,printf,[LIBS="${LIBS} -ldes"])
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LDFLAGS=$hold_ldflags
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if test -n "$krb_incdir"; then
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includeopt="${includeopt} -I$krb_incdir"
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fi
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fi
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fi
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AC_CHECK_FUNCS(krb_get_err_text)
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dnl
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dnl Use --with-gssapi=DIR to enable GSSAPI support.
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dnl
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GSSAPI=/usr/cygnus/kerbnet
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define(WITH_GSSAPI,[
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AC_ARG_WITH([gssapi],
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[ --with-gssapi=value GSSAPI directory],
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[GSSAPI=$withval],
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)dnl
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echo "default place for GSSAPI is $GSSAPI"
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AC_SUBST(GSSAPI)])dnl
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WITH_GSSAPI
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hold_cppflags=$CPPFLAGS
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CPPFLAGS="$CPPFLAGS -I$GSSAPI/include "
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AC_CHECK_HEADERS(gssapi.h gssapi/gssapi.h gssapi/gssapi_generic.h)
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CPPFLAGS=$hold_cppflags
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if test "$ac_cv_header_gssapi_h" = "yes" || test "$ac_cv_header_gssapi_gssapi_h" = "yes"; then
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AC_DEFINE(HAVE_GSSAPI)
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includeopt="${includeopt} -I$GSSAPI/include"
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# FIXME: This is ugly, but these things don't seem to be standardized.
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if test "$ac_cv_header_gssapi_h" = "yes"; then
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LIBS="$LIBS -L$GSSAPI/lib -lgssapi -lkrb5 -lasn1 -ldes -lroken"
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else
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LIBS="$LIBS -L$GSSAPI/lib -lgssapi_krb5 -lkrb5 -lcrypto -lcom_err"
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fi
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save_CPPFLAGS=$CPPFLAGS
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CPPFLAGS="-I$GSSAPI/include $CPPFLAGS"
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if test "$ac_cv_header_gssapi_h" = "yes"; then
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AC_EGREP_HEADER(GSS_C_NT_HOSTBASED_SERVICE, gssapi.h, AC_DEFINE(HAVE_GSS_C_NT_HOSTBASED_SERVICE))
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else
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AC_EGREP_HEADER(GSS_C_NT_HOSTBASED_SERVICE, gssapi/gssapi.h, AC_DEFINE(HAVE_GSS_C_NT_HOSTBASED_SERVICE))
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fi
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CPPFLAGS=$save_CPPFLAGS
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# This is necessary on Irix 5.3, in order to link against libkrb5 --
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# there, an_to_ln.o refers to things defined only in -lgen.
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AC_CHECK_LIB(gen, compile)
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fi
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dnl
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dnl Use --with-encryption to turn on encryption support
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dnl
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AC_ARG_ENABLE(encryption,
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[ --enable-encryption enable encryption support],
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[case "${enableval}" in
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yes) encryption=true ;;
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no) encryption=false ;;
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*) AC_MSG_ERROR(bad value ${enableval} for encryption option) ;;
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esac],
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[encryption=false])
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if test "$encryption" = "true"; then
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AC_DEFINE(ENCRYPTION)
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fi
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AC_CHECK_FUNC(gethostname, :, LIBOBJS="$LIBOBJS hostname.o")
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# Check for options requesting client and server feature. If none are
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# given and we have connect(), we want the full client & server arrangement.
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AC_ARG_ENABLE(client,
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[ --enable-client include code for running as a remote client (default)
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--disable-client don't include remote client code],
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[if test "$enable_client" = yes; then
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AC_DEFINE(CLIENT_SUPPORT)
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fi],
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[if test "$ac_cv_func_connect" = yes; then
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AC_DEFINE(CLIENT_SUPPORT)
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fi])
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AC_ARG_ENABLE(server,
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[ --enable-server include code for running as a server (default)
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--disable-server don't include server code],
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[if test "$enable_server" = yes; then
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AC_DEFINE(SERVER_SUPPORT)
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fi],
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[if test "$ac_cv_func_connect" = yes; then
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AC_DEFINE(SERVER_SUPPORT)
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enable_server=yes
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fi])
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### The auth server needs to be able to check passwords against passwd
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### file entries, so we only #define AUTH_SERVER_SUPPORT if we can
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### find the crypt function.
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###
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### We used to test for crypt in libc first, and only add -lcrypt if
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### we couldn't find it, but that interacts badly with the cache
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### variables, the 'unset' command isn't portable, and I'm not sure
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### there's any harm in just testing for -lcrypt first.
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if test "$enable_server" = yes; then
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AC_CHECK_LIB(crypt, crypt)
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AC_CHECK_FUNCS(crypt)
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if test "$ac_cv_func_crypt" = yes; then
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AC_DEFINE(AUTH_SERVER_SUPPORT)
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fi
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fi # enable_server
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dnl For the moment we will assume that all systems which have
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dnl the unixyness to run configure are unixy enough to do the
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dnl PreservePermissions stuff. I have this sinking feeling that
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dnl things won't be that simple, before long.
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AC_DEFINE(PRESERVE_PERMISSIONS_SUPPORT)
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dnl On cygwin32, we configure like a Unix system, but we use the
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dnl Windows support code in lib/fncase.c to handle the case
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dnl insensitive file system. We also need some support libraries. We
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dnl do this at the end so that the new libraries are added at the end
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dnl of LIBS.
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AC_CACHE_CHECK(for cygwin32, ccvs_cv_sys_cygwin32,
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[AC_TRY_COMPILE([], [return __CYGWIN32__;],
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ccvs_cv_sys_cygwin32=yes, ccvs_cv_sys_cygwin32=no)])
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if test $ccvs_cv_sys_cygwin32 = yes; then
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LIBOBJS="$LIBOBJS fncase.o"
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LIBS="$LIBS -ladvapi32"
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dnl On Windows you can only change file times if you can write to
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dnl the file. cygwin32 should really handle this for us, but as of
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dnl January 1998 it doesn't.
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AC_DEFINE(UTIME_EXPECTS_WRITABLE)
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dnl On Windows we must use setmode to change between binary and text
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dnl mode.
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AC_DEFINE(USE_SETMODE_STDOUT)
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AC_DEFINE(HAVE_SETMODE)
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fi
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test -f src/options.h && (
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AC_MSG_WARN(saving ./src/options.h in ./src/options.h-SAVED)
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AC_MSG_WARN(You may wish to check that local options have not been lost.)
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AC_MSG_WARN(Do not re-run ./configure or ./config.status until you have....)
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cp ./src/options.h ./src/options.h-SAVED
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)
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AC_OUTPUT(Makefile lib/Makefile src/Makefile zlib/Makefile diff/Makefile doc/Makefile \
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man/Makefile tools/Makefile tools/pcl-cvs/Makefile \
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contrib/Makefile contrib/elib/Makefile \
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windows-NT/Makefile windows-NT/SCC/Makefile \
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os2/Makefile emx/Makefile macintosh/Makefile vms/Makefile \
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stamp-h)
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