configure.in revision 25839 
1dnl configure.in for cvs
2AC_INIT(src/cvs.h)
3dnl
4AC_PREREQ(2.4)dnl Required Autoconf version.
5dnl Do not use autoconf 2.12; it produces a configure script which produces
6dnl a "internal 2K buffer" error on HPUX when run with /bin/sh.
7dnl autoconf 2.10 seems like a good choice.
8dnl
9dnl It is possible that we should just change the above required version
10dnl to 2.10; it seems like everyone is using 2.10 anyway, and there is
11dnl at least some sentiment that we should be using a version which has
12dnl --bindir (and correspondingly, using @bindir@ and friends in our
13dnl Makefile.in files.  I'm not sure exactly what version of autoconf
14dnl introduced --bindir but I know 2.10 has it.
15AC_CONFIG_HEADER(config.h src/options.h)
16
17AC_PROG_CC
18
19AC_AIX
20AC_MINIX
21AC_ISC_POSIX
22if test "$ISC" = yes; then
23CFLAGS="$CFLAGS -D_SYSV3"
24LIBS="-lcrypt $LIBS"
25fi
26
27AC_PREFIX_PROGRAM(cvs)
28
29dnl FIXME: AC_C_CROSS is considered obsolete by autoconf 2.12, and is
30dnl pretty ugly to start with.  But it isn't obvious to me how we should
31dnl be handling the uses of cross_compiling below.
32AC_C_CROSS
33
34AC_C_CONST
35
36AC_PROG_INSTALL
37AC_PROG_RANLIB
38AC_PROG_YACC
39AC_PROG_MAKE_SET
40
41AC_PATH_PROG(perl_path, perl, no)
42AC_PATH_PROG(csh_path, csh, no)
43
44AC_SYS_INTERPRETER
45if test X"$ac_cv_sys_interpreter" != X"yes" ; then
46  # silly trick to avoid problems in AC macros...
47  ac_msg='perl scripts using #! may not be invoked properly'
48  AC_MSG_WARN($ac_msg)
49fi
50
51AC_HEADER_STDC
52AC_CHECK_HEADERS(errno.h unistd.h string.h memory.h utime.h fcntl.h ndbm.h \
53                 sys/param.h sys/select.h sys/time.h sys/timeb.h \
54                 io.h direct.h sys/bsdtypes.h sys/resource.h)
55AC_HEADER_SYS_WAIT
56AC_HEADER_STAT
57AC_HEADER_TIME
58AC_HEADER_DIRENT
59AC_TYPE_SIGNAL
60AC_TYPE_UID_T
61AC_TYPE_MODE_T
62AC_TYPE_SIZE_T
63AC_TYPE_PID_T
64AC_REPLACE_FUNCS(getwd mkdir rename strdup strstr dup2 strerror valloc waitpid vasprintf strtoul)
65AC_CHECK_FUNCS(fchmod fsync ftime mkfifo mktemp putenv vfork vprintf ftruncate timezone getpagesize initgroups fchdir sigaction sigprocmask sigvec sigsetmask sigblock tempnam tzset readlink wait3)
66
67dnl
68dnl Look for shadow password files before we go ahead and set getspnam.
69dnl On some systems (Linux), the C library has getspnam but shadow
70dnl passwords might not be in use.
71dnl
72dnl We used to check for the existence of the /etc/security directory
73dnl here, but that's incorrect, since it's possible to have PAM installed
74dnl without using shadow passwords.
75dnl
76AC_MSG_CHECKING([for evidence of shadow passwords])
77if test -f /etc/shadow \
78   || test -f /etc/security/passwd.adjunct ; then
79  found="yes"
80  AC_CHECK_LIB(sec, getspnam)
81  AC_CHECK_FUNCS(getspnam)
82else
83  found="no"
84fi
85AC_MSG_RESULT([$found])
86
87AC_CHECK_FUNC(re_exec, :, LIBOBJS="$LIBOBJS regex.o")
88AC_FUNC_UTIME_NULL
89AC_SYS_LONG_FILE_NAMES
90
91AC_MSG_CHECKING([for working fnmatch function])
92AC_CACHE_VAL(ccvs_cv_sys_working_fnmatch,
93[AC_TRY_RUN([
94#include <fnmatch.h>
95int
96main ()
97{
98  exit ((fnmatch ("a", "a", FNM_PATHNAME) == 0
99	 && fnmatch ("a", "b", FNM_PATHNAME) == FNM_NOMATCH)
100	? 0 : 1);
101}],
102ccvs_cv_sys_working_fnmatch=yes,
103ccvs_cv_sys_working_fnmatch=no,
104ccvs_cv_sys_working_fnmatch=no)])
105if test $ccvs_cv_sys_working_fnmatch = no; then
106  LIBOBJS="$LIBOBJS fnmatch.o"
107fi
108AC_MSG_RESULT($ccvs_cv_sys_working_fnmatch)
109
110# If we can't find connect, try looking in -lsocket, -lnsl, and -linet.
111# The Irix 5 libc.so has connect and gethostbyname, but Irix 5 also has
112# libsocket.so which has a bad implementation of gethostbyname (it
113# only looks in /etc/hosts), so we only look for -lsocket if we need
114# it.
115AC_CHECK_FUNC(connect, :, 
116[case "$LIBS" in
117*-lnsl*) ;;
118*) AC_CHECK_LIB(nsl_s, printf) ;;
119esac
120case "$LIBS" in
121*-lnsl*) ;;
122*) AC_CHECK_LIB(nsl, printf) ;;
123esac
124case "$LIBS" in
125*-lsocket*) ;;
126*) AC_CHECK_LIB(socket, connect) ;;
127esac
128case "$LIBS" in
129*-linet*) ;;
130*) AC_CHECK_LIB(inet, connect) ;;
131esac
132dnl We can't just call AC_CHECK_FUNCS(connect) here, because the value
133dnl has been cached.
134if test "$ac_cv_lib_socket_connect" = "yes" || test "$ac_cv_lib_inet_connect" = "yes"; then
135  ac_cv_func_connect=yes
136  AC_DEFINE(HAVE_CONNECT)
137fi])
138
139dnl
140dnl set $(KRB4) from --with-krb4=value -- WITH_KRB4
141dnl
142KRB4=/usr/kerberos
143define(WITH_KRB4,[
144AC_ARG_WITH([krb4],
145  [  --with-krb4=value       set default \$(KRB4) from value],
146  [KRB4=$withval],
147)dnl
148echo "default place for krb4 is $KRB4"
149AC_SUBST(KRB4)])dnl
150WITH_KRB4
151
152krb_h=
153AC_MSG_CHECKING([for krb.h])
154AC_TRY_LINK([#include <krb.h>],[int i;],
155  [krb_h=yes krb_incdir=],
156  [if test "$cross_compiling" != yes && test -r $KRB4/include/krb.h; then
157     hold_cflags=$CFLAGS
158     CFLAGS="$CFLAGS -I$KRB4/include"
159     AC_TRY_LINK([#include <krb.h>],[int i;],
160       [krb_h=yes krb_incdir=$KRB4/include])
161     CFLAGS=$hold_cflags
162   fi])
163if test -z "$krb_h"; then
164  AC_TRY_LINK([#include <krb.h>],[int i;],
165    [krb_h=yes krb_incdir=],
166    [if test "$cross_compiling" != yes && test -r $KRB4/include/kerberosIV/krb.h; then
167       hold_cflags=$CFLAGS
168       CFLAGS="$CFLAGS -I$KRB4/include/kerberosIV"
169       AC_TRY_LINK([#include <krb.h>],[int i;],
170	 [krb_h=yes krb_incdir=$KRB4/include/kerberosIV])
171       CFLAGS=$hold_cflags
172     fi])
173fi
174AC_MSG_RESULT($krb_h)
175
176if test -n "$krb_h"; then
177  krb_lib=
178  AC_CHECK_LIB(krb,printf,[krb_lib=yes krb_libdir=],
179    [if test "$cross_compiling" != yes && test -r $KRB4/lib/libkrb.a; then
180       krb_lib=yes krb_libdir=$KRB4/lib
181     fi])
182  if test -n "$krb_lib"; then
183    AC_DEFINE(HAVE_KERBEROS)
184    test -n "${krb_libdir}" && LIBS="${LIBS} -L${krb_libdir}"
185    LIBS="${LIBS} -lkrb"
186    # Put -L${krb_libdir} in LDFLAGS temporarily so that it appears before
187    # -ldes in the command line.  Don't do it permanently so that we honor
188    # the user's setting for LDFLAGS
189    hold_ldflags=$LDFLAGS
190    test -n "${krb_libdir}" && LDFLAGS="$LDFLAGS -L${krb_libdir}"
191    AC_CHECK_LIB(des,printf,[LIBS="${LIBS} -ldes"])
192    LDFLAGS=$hold_ldflags
193    if test -n "$krb_incdir"; then
194      includeopt="${includeopt} -I$krb_incdir"
195      AC_SUBST(includeopt)
196    fi
197  fi
198fi
199AC_CHECK_FUNCS(krb_get_err_text)
200
201dnl
202dnl Use --with-encryption to turn on encryption support
203dnl
204AC_ARG_ENABLE(encryption,
205  [  --enable-encryption     enable encryption support],
206  [case "${enableval}" in
207    yes) encryption=true ;;
208    no) encryption=false ;;
209    *) AC_MSG_ERROR(bad value ${enableval} for encryption option) ;;
210   esac],
211  [encryption=false])
212if test "$encryption" = "true"; then
213  AC_DEFINE(ENCRYPTION)
214fi
215
216AC_CHECK_FUNC(gethostname, :, LIBOBJS="$LIBOBJS hostname.o")
217
218# Check for options requesting client and server feature. If none are
219# given and we have connect(), we want the full client & server arrangement.
220AC_ARG_ENABLE(client,
221[  --enable-client         include code for running as a remote client (default)
222  --disable-client        don't include remote client code],
223[if test "$enable_client" = yes; then
224  AC_DEFINE(CLIENT_SUPPORT)
225fi],
226[if test "$ac_cv_func_connect" = yes; then
227  AC_DEFINE(CLIENT_SUPPORT)
228fi])
229AC_ARG_ENABLE(server,
230[  --enable-server         include code for running as a server (default)
231  --disable-server        don't include server code],
232[if test "$enable_server" = yes; then
233  AC_DEFINE(SERVER_SUPPORT)
234fi],
235[if test "$ac_cv_func_connect" = yes; then
236  AC_DEFINE(SERVER_SUPPORT)
237  enable_server=yes
238fi])
239
240### The auth server needs to be able to check passwords against passwd
241### file entries, so we only #define AUTH_SERVER_SUPPORT if we can
242### find the crypt function. 
243###
244### We used to test for crypt in libc first, and only add -lcrypt if
245### we couldn't find it, but that interacts badly with the cache
246### variables, the 'unset' command isn't portable, and I'm not sure
247### there's any harm in just testing for -lcrypt first.
248
249if test "$enable_server" = yes; then
250AC_CHECK_LIB(crypt, crypt)
251AC_CHECK_FUNCS(crypt)
252
253if test "$ac_cv_func_crypt" = yes; then
254  AC_DEFINE(AUTH_SERVER_SUPPORT)
255fi
256fi # enable_server
257
258test -f src/options.h && (
259  AC_MSG_WARN(saving ./src/options.h in ./src/options.h-SAVED)
260  AC_MSG_WARN(You may wish to check that local options have not been lost.)
261  AC_MSG_WARN(Do not re-run ./configure or ./config.status until you have....)
262  cp ./src/options.h ./src/options.h-SAVED
263)
264
265AC_OUTPUT(Makefile lib/Makefile src/Makefile zlib/Makefile doc/Makefile \
266	  man/Makefile tools/Makefile tools/pcl-cvs/Makefile \
267	  contrib/Makefile contrib/elib/Makefile \
268	  windows-NT/Makefile windows-NT/SCC/Makefile \
269	  os2/Makefile macintosh/Makefile vms/Makefile \
270	  stamp-h)
271