Another try at socklen_t: just check for it, and otherwise use int.

[rsync/rsync.git] / configure.in

dnl Process this file with autoconf to produce a configure script.
AC_INIT(byteorder.h)
AC_CONFIG_HEADER(config.h)
AC_PREREQ(2.12)

LDFLAGS=${LDFLAGS-""}

AC_CANONICAL_SYSTEM
AC_VALIDATE_CACHE_SYSTEM_TYPE

# compile with optimisation and without debugging by default, unless
# --debug is given.  We must decide this before testing the compiler.

AC_ARG_ENABLE(debug,
        [  --enable-debug          including debugging symbols and features])

AC_MSG_CHECKING([whether to include debugging symbols])
if test x"$enable_debug" = x"yes"
then
    AC_MSG_RESULT(yes)
    # leave CFLAGS alone; AC_PROG_CC will try to include -g if it can
    AC_DEFINE(DEBUG, 1, [Define to turn on debugging code that may slow normal operation])
    CFLAGS=${CFLAGS-"-g"}
else
    AC_MSG_RESULT(no)
    CFLAGS=${CFLAGS-"-O"}
fi

CFLAGS="$CFLAGS -DHAVE_CONFIG_H"

# look for getconf early as this affects just about everything
AC_CHECK_PROG(HAVE_GETCONF, getconf, "yes", "no")
if test $HAVE_GETCONF = "yes"; then
	CFLAGS=$CFLAGS" "`getconf LFS_CFLAGS 2> /dev/null`
	LDFLAGS=$LDFLAGS" "`getconf LFS_LDFLAGS 2> /dev/null`
fi

AC_ARG_WITH(included-popt,
        [  --with-included-popt    use bundled popt library, not from system])

AC_ARG_WITH(rsync-path,
	[  --with-rsync-path=PATH  set default --rsync-path to PATH (default: \"rsync\")],
	[ RSYNC_PATH="$with_rsync_name" ],
	[ RSYNC_PATH="rsync" ])
AC_DEFINE_UNQUOTED(RSYNC_PATH, "$RSYNC_PATH", [ ])

dnl Checks for programs.
AC_PROG_CC
AC_PROG_INSTALL
AC_SUBST(SHELL)

AC_CHECK_PROG(HAVE_REMSH, remsh, 1, 0)
AC_DEFINE_UNQUOTED(HAVE_REMSH, $HAVE_REMSH, [ ])

AC_SYS_LARGEFILE
AC_C_BIGENDIAN
AC_HEADER_DIRENT
AC_HEADER_TIME
AC_HEADER_SYS_WAIT
AC_CHECK_HEADERS(sys/fcntl.h sys/select.h fcntl.h sys/time.h sys/unistd.h unistd.h utime.h grp.h)
AC_CHECK_HEADERS(compat.h sys/param.h ctype.h sys/wait.h sys/ioctl.h)
AC_CHECK_HEADERS(sys/filio.h string.h stdlib.h sys/socket.h sys/mode.h)
AC_CHECK_HEADERS(glob.h alloca.h mcheck.h)

AC_CHECK_SIZEOF(int)
AC_CHECK_SIZEOF(long)
AC_CHECK_SIZEOF(short)

AC_C_INLINE

AC_TYPE_SIGNAL
AC_TYPE_UID_T
AC_TYPE_MODE_T
AC_TYPE_OFF_T
AC_TYPE_SIZE_T
AC_TYPE_PID_T
AC_TYPE_GETGROUPS
AC_STRUCT_ST_RDEV
AC_CHECK_TYPE([ino_t], [unsigned])
dnl TYPE_SOCKLEN_T
AC_CHECK_TYPE([socklen_t], [size_t])

AC_CACHE_CHECK([for errno in errno.h],rsync_cv_errno, [
    AC_TRY_COMPILE([#include <errno.h>],[int i = errno],
	rsync_cv_errno=yes,rsync_cv_have_errno_decl=no)])
if test x"$rsync_cv_errno" = x"yes"; then
   AC_DEFINE(HAVE_ERRNO_DECL, 1, [ ])
fi

# The following test taken from the cvs sources
# If we can't find connect, try looking in -lsocket, -lnsl, and -linet.
# These need checks to be before checks for any other functions that
#    might be in the same libraries.
# The Irix 5 libc.so has connect and gethostbyname, but Irix 5 also has
# libsocket.so which has a bad implementation of gethostbyname (it
# only looks in /etc/hosts), so we only look for -lsocket if we need
# it.
AC_CHECK_FUNCS(connect)
if test x"$ac_cv_func_connect" = x"no"; then
    case "$LIBS" in
    *-lnsl*) ;;
    *) AC_CHECK_LIB(nsl_s, printf) ;;
    esac
    case "$LIBS" in
    *-lnsl*) ;;
    *) AC_CHECK_LIB(nsl, printf) ;;
    esac
    case "$LIBS" in
    *-lsocket*) ;;
    *) AC_CHECK_LIB(socket, connect) ;;
    esac
    case "$LIBS" in
    *-linet*) ;;
    *) AC_CHECK_LIB(inet, connect) ;;
    esac
    dnl We can't just call AC_CHECK_FUNCS(connect) here, because the value
    dnl has been cached.
    if test x"$ac_cv_lib_socket_connect" = x"yes" || 
       test x"$ac_cv_lib_inet_connect" = x"yes"; then
        # ac_cv_func_connect=yes
        # don't!  it would cause AC_CHECK_FUNC to succeed next time configure is run
        AC_DEFINE(HAVE_CONNECT, 1, [ ])
    fi
fi

# 
# if we can't find strcasecmp, look in -lresolv (for Unixware at least)
#
AC_CHECK_FUNCS(strcasecmp)
if test x"$ac_cv_func_strcasecmp" = x"no"; then
    AC_CHECK_LIB(resolv, strcasecmp)
fi

AC_FUNC_MEMCMP
AC_FUNC_UTIME_NULL
AC_CHECK_FUNCS(waitpid wait4 getcwd strdup strerror chown chmod mknod)
AC_CHECK_FUNCS(fchmod fstat strchr readlink link utime utimes strftime)
AC_CHECK_FUNCS(memmove lchown vsnprintf snprintf asprintf setsid glob strpbrk)
AC_CHECK_FUNCS(strlcat strlcpy mtrace)

AC_CACHE_CHECK([for working socketpair],rsync_cv_HAVE_SOCKETPAIR,[
AC_TRY_RUN([#include <sys/types.h>
	    #include <sys/socket.h>
	    main() {
		int fd[2];
		exit((socketpair(AF_UNIX, SOCK_STREAM, 0, fd) != -1) ? 0 : 1);
	    }],
rsync_cv_HAVE_SOCKETPAIR=yes,rsync_cv_HAVE_SOCKETPAIR=no,rsync_cv_HAVE_SOCKETPAIR=cross)])
if test x"$rsync_cv_HAVE_SOCKETPAIR" = x"yes"; then
    AC_DEFINE(HAVE_SOCKETPAIR, 1, [ ])
fi

AC_CACHE_CHECK([for working fnmatch],rsync_cv_HAVE_FNMATCH,[
AC_TRY_RUN([#include <fnmatch.h>
main() { exit((fnmatch("*.o", "x.o", FNM_PATHNAME) == 0 &&
               fnmatch("a/b/*", "a/b/c/d", FNM_PATHNAME) != 0) ? 0: 1); }],
rsync_cv_HAVE_FNMATCH=yes,rsync_cv_HAVE_FNMATCH=no,rsync_cv_HAVE_FNMATCH=cross)])
if test x"$rsync_cv_HAVE_FNMATCH" = x"yes"; then
    AC_DEFINE(HAVE_FNMATCH, 1, [ ])
fi

if test x"$with_included_popt" != x"yes"
then
    AC_CHECK_LIB(popt, poptGetContext, , [with_included_popt=yes])
fi

AC_MSG_CHECKING([whether to use included libpopt])
if test x"$with_included_popt" = x"yes"
then
    AC_MSG_RESULT($srcdir/popt)
    BUILD_POPT='$(popt_OBJS)'
    CFLAGS="$CFLAGS -I$srcdir/popt"
else
    AC_MSG_RESULT(no)
fi

AC_CACHE_CHECK([for long long],rsync_cv_HAVE_LONGLONG,[
AC_TRY_RUN([#include <stdio.h>
main() { long long x = 1000000; x *= x; exit(((x/1000000) == 1000000)? 0: 1); }],
rsync_cv_HAVE_LONGLONG=yes,rsync_cv_HAVE_LONGLONG=no,rsync_cv_HAVE_LONGLONG=cross)])
if test x"$rsync_cv_HAVE_LONGLONG" = x"yes"; then
    AC_DEFINE(HAVE_LONGLONG, 1, [ ])
fi

AC_CACHE_CHECK([for off64_t],rsync_cv_HAVE_OFF64_T,[
AC_TRY_RUN([#include <stdio.h>
#include <sys/stat.h>
main() { struct stat64 st; off64_t s; if (sizeof(off_t) == sizeof(off64_t)) exit(1); exit((lstat64("/dev/null", &st)==0)?0:1); }],
rsync_cv_HAVE_OFF64_T=yes,rsync_cv_HAVE_OFF64_T=no,rsync_cv_HAVE_OFF64_T=cross)])
if test x"$rsync_cv_HAVE_OFF64_T" = x"yes"; then
    AC_DEFINE(HAVE_OFF64_T, 1, [ ])
fi

AC_CACHE_CHECK([for short ino_t],rsync_cv_HAVE_SHORT_INO_T,[
AC_TRY_RUN([#include <stdio.h>
#include <sys/types.h>
#include <sys/stat.h>
main() { if (sizeof(ino_t) < sizeof(unsigned int)) return 0; return 1; }],
rsync_cv_HAVE_SHORT_INO_T=yes,rsync_cv_HAVE_SHORT_INO_T=no,rsync_cv_HAVE_SHORT_INO_T=cross)])
if test x"$rsync_cv_HAVE_SHORT_INO_T" = x"yes"; then
    AC_DEFINE(HAVE_SHORT_INO_T, 1, [ ])
fi

AC_CACHE_CHECK([for unsigned char],rsync_cv_HAVE_UNSIGNED_CHAR,[
AC_TRY_RUN([#include <stdio.h>
main() { char c; c=250; exit((c > 0)?0:1); }],
rsync_cv_HAVE_UNSIGNED_CHAR=yes,rsync_cv_HAVE_UNSIGNED_CHAR=no,rsync_cv_HAVE_UNSIGNED_CHAR=cross)])
if test x"$rsync_cv_HAVE_UNSIGNED_CHAR" = x"yes"; then
    AC_DEFINE(HAVE_UNSIGNED_CHAR, 1, [ ])
fi

AC_CACHE_CHECK([for broken readdir],rsync_cv_HAVE_BROKEN_READDIR,[
AC_TRY_RUN([#include <sys/types.h>
#include <dirent.h>
main() { struct dirent *di; DIR *d = opendir("."); di = readdir(d);
if (di && di->d_name[-2] == '.' && di->d_name[-1] == 0 &&
di->d_name[0] == 0) exit(0); exit(1);} ],
rsync_cv_HAVE_BROKEN_READDIR=yes,rsync_cv_HAVE_BROKEN_READDIR=no,rsync_cv_HAVE_BROKEN_READDIR=cross)])
if test x"$rsync_cv_HAVE_BROKEN_READDIR" = x"yes"; then
    AC_DEFINE(HAVE_BROKEN_READDIR, 1, [ ])
fi

AC_CACHE_CHECK([for utimbuf],rsync_cv_HAVE_UTIMBUF,[
AC_TRY_COMPILE([#include <sys/types.h>
#include <utime.h>],
[struct utimbuf tbuf;  tbuf.actime = 0; tbuf.modtime = 1; exit(utime("foo.c",&tbuf));],
rsync_cv_HAVE_UTIMBUF=yes,rsync_cv_HAVE_UTIMBUF=no,rsync_cv_HAVE_UTIMBUF=cross)])
if test x"$rsync_cv_HAVE_UTIMBUF" = x"yes"; then
    AC_DEFINE(HAVE_UTIMBUF, 1, [ ])
fi

AC_CACHE_CHECK([if gettimeofday takes tz argument],rsync_cv_HAVE_GETTIMEOFDAY_TZ,[
AC_TRY_RUN([
#include <sys/time.h>
#include <unistd.h>
main() { struct timeval tv; exit(gettimeofday(&tv, NULL));}],
           rsync_cv_HAVE_GETTIMEOFDAY_TZ=yes,rsync_cv_HAVE_GETTIMEOFDAY_TZ=no,rsync_cv_HAVE_GETTIMEOFDAY_TZ=cross)])
if test x"$rsync_cv_HAVE_GETTIMEOFDAY_TZ" = x"yes"; then
    AC_DEFINE(HAVE_GETTIMEOFDAY_TZ, 1, [ ])
fi

AC_CACHE_CHECK([for C99 vsnprintf],rsync_cv_HAVE_C99_VSNPRINTF,[
AC_TRY_RUN([
#include <sys/types.h>
#include <stdarg.h>
void foo(const char *format, ...) { 
       va_list ap;
       int len;
       char buf[5];

       va_start(ap, format);
       len = vsnprintf(0, 0, format, ap);
       va_end(ap);
       if (len != 5) exit(1);

       if (snprintf(buf, 3, "hello") != 5 || strcmp(buf, "he") != 0) exit(1);

       exit(0);
}
main() { foo("hello"); }
],
rsync_cv_HAVE_C99_VSNPRINTF=yes,rsync_cv_HAVE_C99_VSNPRINTF=no,rsync_cv_HAVE_C99_VSNPRINTF=cross)])
if test x"$rsync_cv_HAVE_C99_VSNPRINTF" = x"yes"; then
    AC_DEFINE(HAVE_C99_VSNPRINTF, 1, [ ])
fi


AC_CACHE_CHECK([for secure mkstemp],rsync_cv_HAVE_SECURE_MKSTEMP,[
AC_TRY_RUN([#include <stdlib.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <unistd.h>
main() { 
  struct stat st;
  char tpl[20]="/tmp/test.XXXXXX"; 
  int fd = mkstemp(tpl); 
  if (fd == -1) exit(1);
  unlink(tpl);
  if (fstat(fd, &st) != 0) exit(1);
  if ((st.st_mode & 0777) != 0600) exit(1);
  exit(0);
}],
rsync_cv_HAVE_SECURE_MKSTEMP=yes,
rsync_cv_HAVE_SECURE_MKSTEMP=no,
rsync_cv_HAVE_SECURE_MKSTEMP=cross)])
if test x"$rsync_cv_HAVE_SECURE_MKSTEMP" = x"yes"; then
    AC_DEFINE(HAVE_SECURE_MKSTEMP, 1, [ ])
fi


AC_CACHE_CHECK([for broken inet_ntoa],rsync_cv_REPLACE_INET_NTOA,[
AC_TRY_RUN([
#include <stdio.h>
#include <sys/types.h>
#include <netinet/in.h>
#include <arpa/inet.h>
main() { struct in_addr ip; ip.s_addr = 0x12345678;
if (strcmp(inet_ntoa(ip),"18.52.86.120") &&
    strcmp(inet_ntoa(ip),"120.86.52.18")) { exit(1); } 
exit(0);}],
           rsync_cv_REPLACE_INET_NTOA=no,rsync_cv_REPLACE_INET_NTOA=yes,rsync_cv_REPLACE_INET_NTOA=cross)])
if test x"$rsync_cv_REPLACE_INET_NTOA" = x"yes"; then
    AC_DEFINE(REPLACE_INET_NTOA, 1, [ ])
fi


AC_CACHE_CHECK([for broken inet_aton],rsync_cv_REPLACE_INET_ATON,[
AC_TRY_RUN([
#include <stdio.h>
#include <sys/types.h>
#include <netinet/in.h>
#include <arpa/inet.h>
main() { struct in_addr ip; 
if (inet_aton("example", &ip) == 0) exit(0); exit(1);}],
           rsync_cv_REPLACE_INET_ATON=no,rsync_cv_REPLACE_INET_ATON=yes,rsync_cv_REPLACE_INET_ATON=cross)])
if test x"$rsync_cv_REPLACE_INET_ATON" = x"yes"; then
    AC_DEFINE(REPLACE_INET_ATON, 1, [ ])
fi

#
# The following test was mostly taken from the tcl/tk plus patches
#
AC_CACHE_CHECK([whether -c -o works],rsync_cv_DASHC_WORKS_WITH_DASHO,[
rm -rf conftest*
cat > conftest.$ac_ext <<EOF
int main() { return 0; }
EOF
${CC-cc} -c -o conftest..o conftest.$ac_ext
if test -f conftest..o; then
    rsync_cv_DASHC_WORKS_WITH_DASHO=yes
else
    rsync_cv_DASHC_WORKS_WITH_DASHO=no
fi
rm -rf conftest*
])
if test x"$rsync_cv_DASHC_WORKS_WITH_DASHO" = x"yes"; then
    OBJ_SAVE="#"
    OBJ_RESTORE="#"
    CC_SHOBJ_FLAG='-o $@'
else
    OBJ_SAVE='	@b=`basename $@ .o`;rm -f $$b.o.sav;if test -f $$b.o; then mv $$b.o $$b.o.sav;fi;'
    OBJ_RESTORE='	@b=`basename $@ .o`;if test "$$b.o" != "$@"; then mv $$b.o $@; if test -f $$b.o.sav; then mv $$b.o.sav $$b.o; fi; fi'
    CC_SHOBJ_FLAG=""
fi

AC_SUBST(OBJ_SAVE)
AC_SUBST(OBJ_RESTORE)
AC_SUBST(CC_SHOBJ_FLAG)
AC_SUBST(BUILD_POPT)

AC_OUTPUT(Makefile lib/dummy zlib/dummy)