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dnl Autoconfigure input file for fetchmail
dnl Eric S. Raymond <esr@thyrsus.com>
dnl
dnl Process this file with autoconf to produce a configure script.
dnl
AC_INIT(fetchmail.h) dnl A distinctive file to look for in srcdir.
AC_CONFIG_HEADER(config.h)
dnl We want these before the checks, so the checks can modify their values.
test -z "$CFLAGS" && CFLAGS=-O AC_SUBST(CFLAGS)
test -z "$LDFLAGS" && LDFLAGS=-s AC_SUBST(LDFLAGS)
AC_CANONICAL_HOST
AC_PROG_CC
AC_PROG_INSTALL
AC_PROG_CPP dnl Later checks need this.
AC_PROG_CC_C_O
AC_AIX
AC_ISC_POSIX
AC_MINIX
AC_HEADER_STDC
AC_TYPE_SIZE_T
AC_TYPE_PID_T
AC_TYPE_SIGNAL
AC_CHECK_HEADERS(unistd.h termios.h termio.h sgtty.h stdarg.h alloca.h sys/itimer.h fcntl.h sys/fcntl.h)
AC_C_CONST dnl getopt needs this.
AC_PROG_LEX
AC_PROG_YACC
AC_SUBST(LIBOBJS)
# Under sysV68, socket and friends are provided by the C library.
# -linet does not provide socket, but causes multiple definition
# errors at link-time. It is thus better to only use the C library.
# So don't add -linet to the link list unless it's necessary
AC_CHECK_FUNC(socket,
AC_MSG_RESULT(using libc's socket),
AC_CHECK_LIB(socket,socket)
AC_CHECK_LIB(inet,socket))
AC_CHECK_LIB(nsl,inet_addr)
AC_CHECK_LIB(opie,opiegenerator)
dnl Port hack for Interactive UNIX System V/386 Release 3.2
AC_CHECK_LIB(cposix, strchr,
[EXTRADEFS="$EXTRADEFS -D_SYSV3"
LIBS="$LIBS -lcposix"])
AC_CHECK_FUNC(strstr, AC_DEFINE(HAVE_STRSTR),
[EXTRASRC="$EXTRASRC \$(srcdir)/strstr.c"
EXTRAOBJ="$EXTRAOBJ strstr.o"])
AC_CHECK_FUNC(strcasecmp, AC_DEFINE(HAVE_STRCASECMP),
[EXTRASRC="$EXTRASRC \$(srcdir)/strcasecmp.c"
EXTRAOBJ="$EXTRAOBJ strcasecmp.o"])
AC_CHECK_FUNC(getopt_long, AC_DEFINE(HAVE_GETOPTLONG),
[EXTRASRC="$EXTRASRC \$(srcdir)/getopt.c \$(srcdir)/getopt1.c"
EXTRAOBJ="$EXTRAOBJ getopt.o getopt1.o"])
AC_FUNC_VPRINTF
AC_FUNC_ALLOCA
if test -n "$ALLOCA"
then
EXTRASRC="$EXTRASRC \$(srcdir)/alloca.c"
EXTRAOBJ="$EXTRAOBJ alloca.o"
fi
dnl All AC_CHECK_FUNCs must precede the following AC_SUBSTs
AC_SUBST(EXTRADEFS)
AC_SUBST(EXTRASRC)
AC_SUBST(EXTRAOBJ)
AC_CHECK_FUNCS(tcsetattr stty setsid seteuid gethostbyname res_search herror \
strrchr strerror setlinebuf syslog snprintf vsnprintf vsyslog atexit)
# Under Red Hat 4.0 (and many other Linuxes) -lresolv is seriously flaky
# and breaks gethostbyname(2). It's better to use the bind stuff in the C
# library. So don't add -lresolv to the link list unless it's necessary
# (It will be necessary when using GNU libc6).
AC_CHECK_FUNC(res_search,
AC_MSG_RESULT(using libc's resolver functions),
AC_CHECK_LIB(resolv,res_search,
[AC_DEFINE(HAVE_RES_SEARCH) AC_MSG_RESULT(found resolver functions in libresolv); LIBS="$LIBS -lresolv"], AC_MSG_RESULT(no resolver calls found)))
dnl AC_FUNC_SETVBUF_REVERSED
dnl Check for usable void pointer type
AC_MSG_CHECKING(use of void pointer type)
AC_TRY_COMPILE([],
[char *p;
void *xmalloc();
p = (char *) xmalloc(1);
],
[AC_DEFINE(HAVE_VOIDPOINTER) AC_MSG_RESULT(yes)],
AC_MSG_RESULT(no))
dnl Check out the wait reality. We have to assume sys/wait.h is present.
AC_CHECK_FUNCS(waitpid wait3)
AC_MSG_CHECKING(for union wait);
AC_TRY_LINK([#include <sys/types.h>
#include <sys/wait.h>],
[union wait status; int pid; pid = wait (&status);
#ifdef WEXITSTATUS
/* Some POSIXoid systems have both the new-style macros and the old
union wait type, and they do not work together. If union wait
conflicts with WEXITSTATUS et al, we don't want to use it at all. */
if (WEXITSTATUS (status) != 0) pid = -1;
#endif
#ifdef HAVE_WAITPID
/* Make sure union wait works with waitpid. */
pid = waitpid (-1, &status, 0);
#endif
],
[AC_DEFINE(HAVE_UNION_WAIT) AC_MSG_RESULT(yes)],
AC_MSG_RESULT(no))
AC_MSG_CHECKING(sys_siglist declaration in signal.h or unistd.h)
AC_TRY_LINK([#include <signal.h>
/* NetBSD declares sys_siglist in <unistd.h>. */
#ifdef HAVE_UNISTD_H
#include <unistd.h>
#endif], [char *msg = *(sys_siglist + 1);],
[AC_DEFINE(SYS_SIGLIST_DECLARED) AC_MSG_RESULT(yes)],
AC_MSG_RESULT(no))
AC_CHECK_SIZEOF(short)
AC_CHECK_SIZEOF(int)
AC_CHECK_SIZEOF(long)
### use option --enable-POP2 to compile in the POP2 fallback support
AC_ARG_ENABLE(POP2,
[ --enable-POP2 compile in POP2 protocol support (obsolete)],
[with_POP2=$enableval],
[with_POP2=no])
test "$with_POP2" = "yes" && AC_DEFINE(POP2_ENABLE)
### use option --enable-OPIE to compile in the OPIE support
AC_ARG_ENABLE(OPIE,
[ --enable-OPIE compile in OPIE protocol support (obsolete)],
[with_OPIE=$enableval],
[with_OPIE=no])
test "$with_OPIE" = "yes" && AC_DEFINE(OPIE_ENABLE)
### use option --with-kerberos=DIR to point at a Kerberos directory
AC_ARG_WITH(kerberos,
[ --with-kerberos=DIR point fetchmail compilation at a Kerberos directory])
# The "then" arm (nonempty $with_kerberos) is kind of a crock. It works for
# configuring the BSD/OS Kerberos IV support, though.
if test -n "$with_kerberos"
then
CFLAGS="$CFLAGS -DKERBEROS_V4 -I$with_kerberos"
LDFLAGS="$LDFLAGS -L$dir/lib"
LIBS="$LIBS -lkrb -ldes"
else
for dir in /usr/kerberos /usr/kerberosIV /usr/athena
do
if test -f "$dir/include/krb.h"
then
CFLAGS="$CFLAGS -DKERBEROS_V4 -I$dir/include"
LDFLAGS="$LDFLAGS -L$dir/lib"
LIBS="$LIBS -lkrb -ldes"
break
fi
done
fi
AC_OUTPUT(Makefile, [
# The reason for this odd makedepend line is that we want
# to have all dependencies evaluated relative to the source directory
# and let VPATH do all the dirty work when we build remotely
echo "You can ignore any makedepend error messages";
(cd $srcdir; makedepend -f - *.c) >>Makefile])
dnl Local Variables:
dnl comment-start: "dnl "
dnl comment-end: ""
dnl comment-start-skip: "\\bdnl\\b\\s *"
dnl compile-command: "make configure config.h.in"
dnl End:
|
