--- /dev/null
+dnl aclocal.m4 generated automatically by aclocal 1.4
+
+dnl Copyright (C) 1994, 1995-8, 1999 Free Software Foundation, Inc.
+dnl This file is free software; the Free Software Foundation
+dnl gives unlimited permission to copy and/or distribute it,
+dnl with or without modifications, as long as this notice is preserved.
+
+dnl This program is distributed in the hope that it will be useful,
+dnl but WITHOUT ANY WARRANTY, to the extent permitted by law; without
+dnl even the implied warranty of MERCHANTABILITY or FITNESS FOR A
+dnl PARTICULAR PURPOSE.
+
+dnl
+dnl Macro: unet_PIPE_CFLAGS
+dnl
+dnl If the compiler understands -pipe, add it to CFLAGS if not already
+dnl there.
+dnl
+AC_DEFUN(unet_PIPE_CFLAGS,
+[AC_MSG_CHECKING([if the compiler understands -pipe])
+unet_cv_pipe_flags="$ac_cv_prog_gcc"
+if test "$ac_cv_prog_gcc" = no; then
+ OLDCFLAGS="$CFLAGS"
+ CFLAGS="$CFLAGS -pipe"
+ AC_TRY_COMPILE(,,unet_cv_pipe_flags=yes,)
+ CFLAGS="$OLDCFLAGS"
+fi
+AC_MSG_RESULT($unet_cv_pipe_flags)
+if test "$unet_cv_pipe_flags" = yes ; then
+ x=`echo $CFLAGS | grep 'pipe' 2>/dev/null`
+ if test "$x" = "" ; then
+ CFLAGS="$CFLAGS -pipe"
+ fi
+fi
+])
+
+dnl
+dnl Macro: unet_NONBLOCKING
+dnl
+dnl Check whether we have posix, bsd or sysv non-blocking sockets and
+dnl define respectively NBLOCK_POSIX, NBLOCK_BSD or NBLOCK_SYSV.
+dnl
+AC_DEFUN(unet_NONBLOCKING,
+[dnl Do we have posix, bsd or sysv non-blocking stuff ?
+AC_CACHE_CHECK([for posix non-blocking], unet_cv_sys_nonblocking_posix,
+[AC_TRY_RUN([#include <sys/types.h>
+#include <sys/socket.h>
+#include <fcntl.h>
+#include <sys/ioctl.h>
+#include <sys/file.h>
+#include <signal.h>
+$ac_cv_type_signal alarmed() { exit(1); }
+int main(void)
+{
+ char b[12];
+ struct sockaddr x;
+ size_t l = sizeof(x);
+ int f = socket(AF_INET, SOCK_DGRAM, 0);
+ if (f >= 0 && !(fcntl(f, F_SETFL, O_NONBLOCK)))
+ {
+ signal(SIGALRM, alarmed);
+ alarm(2);
+ recvfrom(f, b, 12, 0, &x, &l);
+ alarm(0);
+ exit(0);
+ }
+ exit(1);
+}], unet_cv_sys_nonblocking_posix=yes, unet_cv_sys_nonblocking_posix=no)])
+if test $unet_cv_sys_nonblocking_posix = yes; then
+ AC_DEFINE(NBLOCK_POSIX)
+else
+AC_CACHE_CHECK([for bsd non-blocking], unet_cv_sys_nonblocking_bsd,
+[AC_TRY_RUN([#include <sys/types.h>
+#include <sys/socket.h>
+#include <fcntl.h>
+#include <sys/ioctl.h>
+#include <sys/file.h>
+#include <signal.h>
+$ac_cv_type_signal alarmed() { exit(1); }
+int main(void)
+{
+ char b[12];
+ struct sockaddr x;
+ size_t l = sizeof(x);
+ int f = socket(AF_INET, SOCK_DGRAM, 0);
+ if (f >= 0 && !(fcntl(f, F_SETFL, O_NDELAY)))
+ {
+ signal(SIGALRM, alarmed);
+ alarm(2);
+ recvfrom(f, b, 12, 0, &x, &l);
+ alarm(0);
+ exit(0);
+ }
+ exit(1);
+}], unet_cv_sys_nonblocking_bsd=yes, unet_cv_sys_nonblocking_bsd=no)])
+if test $unet_cv_sys_nonblocking_bsd = yes; then
+ AC_DEFINE(NBLOCK_BSD)
+else
+ AC_DEFINE(NBLOCK_SYSV)
+fi
+fi])
+
+dnl
+dnl Macro: unet_SIGNALS
+dnl
+dnl Check if we have posix signals, reliable bsd signals or
+dnl unreliable sysv signals and define respectively POSIX_SIGNALS,
+dnl BSD_RELIABLE_SIGNALS or SYSV_UNRELIABLE_SIGNALS.
+dnl
+AC_DEFUN(unet_SIGNALS,
+[dnl Do we have posix signals, reliable bsd signals or unreliable sysv signals ?
+AC_CACHE_CHECK([for posix signals], unet_cv_sys_signal_posix,
+[AC_TRY_COMPILE([#include <signal.h>],
+[sigaction(SIGTERM, (struct sigaction *)0L, (struct sigaction *)0L)],
+unet_cv_sys_signal_posix=yes, unet_cv_sys_signal_posix=no)])
+if test $unet_cv_sys_signal_posix = yes; then
+ AC_DEFINE(POSIX_SIGNALS)
+else
+AC_CACHE_CHECK([for bsd reliable signals], unet_cv_sys_signal_bsd,
+[AC_TRY_RUN([#include <signal.h>
+int calls = 0;
+$ac_cv_type_signal handler()
+{
+ if (calls) return;
+ calls++;
+ kill(getpid(), SIGTERM);
+ sleep(1);
+}
+int main(void)
+{
+ signal(SIGTERM, handler);
+ kill(getpid(), SIGTERM);
+ exit (0);
+}], unet_cv_sys_signal_bsd=yes, unet_cv_sys_signal_bsd=no)])
+if test $unet_cv_sys_signal_bsd = yes; then
+ AC_DEFINE(BSD_RELIABLE_SIGNALS)
+else
+ AC_DEFINE(SYSV_UNRELIABLE_SIGNALS)
+fi
+fi])
+
+dnl
+dnl Macro: unet_CHECK_TYPE_SIZES
+dnl
+dnl Check the size of several types and define a valid int16_t and int32_t.
+dnl
+AC_DEFUN(unet_CHECK_TYPE_SIZES,
+[dnl Check type sizes
+AC_CHECK_SIZEOF(short)
+AC_CHECK_SIZEOF(int)
+AC_CHECK_SIZEOF(long)
+AC_CHECK_SIZEOF(void *)
+if test "$ac_cv_sizeof_int" = 2 ; then
+ AC_CHECK_TYPE(int16_t, int)
+ AC_CHECK_TYPE(u_int16_t, unsigned int)
+elif test "$ac_cv_sizeof_short" = 2 ; then
+ AC_CHECK_TYPE(int16_t, short)
+ AC_CHECK_TYPE(u_int16_t, unsigned short)
+else
+ AC_MSG_ERROR([Cannot find a type with size of 16 bits])
+fi
+if test "$ac_cv_sizeof_int" = 4 ; then
+ AC_CHECK_TYPE(int32_t, int)
+ AC_CHECK_TYPE(u_int32_t, unsigned int)
+elif test "$ac_cv_sizeof_short" = 4 ; then
+ AC_CHECK_TYPE(int32_t, short)
+ AC_CHECK_TYPE(u_int32_t, unsigned short)
+elif test "$ac_cv_sizeof_long" = 4 ; then
+ AC_CHECK_TYPE(int32_t, long)
+ AC_CHECK_TYPE(u_int32_t, unsigned long)
+else
+ AC_MSG_ERROR([Cannot find a type with size of 32 bits])
+fi])
+
+dnl Written by John Hawkinson <jhawk@mit.edu>. This code is in the Public
+dnl Domain.
+dnl
+dnl This test is for network applications that need socket() and
+dnl gethostbyname() -ish functions. Under Solaris, those applications need to
+dnl link with "-lsocket -lnsl". Under IRIX, they should *not* link with
+dnl "-lsocket" because libsocket.a breaks a number of things (for instance:
+dnl gethostbyname() under IRIX 5.2, and snoop sockets under most versions of
+dnl IRIX).
+dnl
+dnl Unfortunately, many application developers are not aware of this, and
+dnl mistakenly write tests that cause -lsocket to be used under IRIX. It is
+dnl also easy to write tests that cause -lnsl to be used under operating
+dnl systems where neither are necessary (or useful), such as SunOS 4.1.4, which
+dnl uses -lnsl for TLI.
+dnl
+dnl This test exists so that every application developer does not test this in
+dnl a different, and subtly broken fashion.
+dnl
+dnl It has been argued that this test should be broken up into two seperate
+dnl tests, one for the resolver libraries, and one for the libraries necessary
+dnl for using Sockets API. Unfortunately, the two are carefully intertwined and
+dnl allowing the autoconf user to use them independantly potentially results in
+dnl unfortunate ordering dependancies -- as such, such component macros would
+dnl have to carefully use indirection and be aware if the other components were
+dnl executed. Since other autoconf macros do not go to this trouble, and almost
+dnl no applications use sockets without the resolver, this complexity has not
+dnl been implemented.
+dnl
+dnl The check for libresolv is in case you are attempting to link statically
+dnl and happen to have a libresolv.a lying around (and no libnsl.a).
+dnl
+AC_DEFUN(AC_LIBRARY_NET, [
+ # Most operating systems have gethostbyname() in the default searched
+ # libraries (i.e. libc):
+ AC_CHECK_FUNC(gethostbyname, ,
+ # Some OSes (eg. Solaris) place it in libnsl:
+ AC_CHECK_LIB(nsl, gethostbyname, ,
+ # Some strange OSes (SINIX) have it in libsocket:
+ AC_CHECK_LIB(socket, gethostbyname, ,
+ # Unfortunately libsocket sometimes depends on libnsl.
+ # AC_CHECK_LIB's API is essentially broken so the following
+ # ugliness is necessary:
+ AC_CHECK_LIB(socket, gethostbyname,
+ LIBS="-lsocket -lnsl $LIBS",
+ AC_CHECK_LIB(resolv, gethostbyname),
+ -lnsl)
+ )
+ )
+ )
+ AC_CHECK_FUNC(socket, , AC_CHECK_LIB(socket, socket, ,
+ AC_CHECK_LIB(socket, socket, LIBS="-lsocket -lnsl $LIBS", , -lnsl)))
+ ])
+
+
+# serial 1
+
+# @defmac AC_PROG_CC_STDC
+# @maindex PROG_CC_STDC
+# @ovindex CC
+# If the C compiler in not in ANSI C mode by default, try to add an option
+# to output variable @code{CC} to make it so. This macro tries various
+# options that select ANSI C on some system or another. It considers the
+# compiler to be in ANSI C mode if it handles function prototypes correctly.
+#
+# If you use this macro, you should check after calling it whether the C
+# compiler has been set to accept ANSI C; if not, the shell variable
+# @code{am_cv_prog_cc_stdc} is set to @samp{no}. If you wrote your source
+# code in ANSI C, you can make an un-ANSIfied copy of it by using the
+# program @code{ansi2knr}, which comes with Ghostscript.
+# @end defmac
+
+AC_DEFUN(AM_PROG_CC_STDC,
+[AC_REQUIRE([AC_PROG_CC])
+AC_BEFORE([$0], [AC_C_INLINE])
+AC_BEFORE([$0], [AC_C_CONST])
+dnl Force this before AC_PROG_CPP. Some cpp's, eg on HPUX, require
+dnl a magic option to avoid problems with ANSI preprocessor commands
+dnl like #elif.
+dnl FIXME: can't do this because then AC_AIX won't work due to a
+dnl circular dependency.
+dnl AC_BEFORE([$0], [AC_PROG_CPP])
+AC_MSG_CHECKING(for ${CC-cc} option to accept ANSI C)
+AC_CACHE_VAL(am_cv_prog_cc_stdc,
+[am_cv_prog_cc_stdc=no
+ac_save_CC="$CC"
+# Don't try gcc -ansi; that turns off useful extensions and
+# breaks some systems' header files.
+# AIX -qlanglvl=ansi
+# Ultrix and OSF/1 -std1
+# HP-UX -Aa -D_HPUX_SOURCE
+# SVR4 -Xc -D__EXTENSIONS__
+for ac_arg in "" -qlanglvl=ansi -std1 "-Aa -D_HPUX_SOURCE" "-Xc -D__EXTENSIONS__"
+do
+ CC="$ac_save_CC $ac_arg"
+ AC_TRY_COMPILE(
+[#include <stdarg.h>
+#include <stdio.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+/* Most of the following tests are stolen from RCS 5.7's src/conf.sh. */
+struct buf { int x; };
+FILE * (*rcsopen) (struct buf *, struct stat *, int);
+static char *e (p, i)
+ char **p;
+ int i;
+{
+ return p[i];
+}
+static char *f (char * (*g) (char **, int), char **p, ...)
+{
+ char *s;
+ va_list v;
+ va_start (v,p);
+ s = g (p, va_arg (v,int));
+ va_end (v);
+ return s;
+}
+int test (int i, double x);
+struct s1 {int (*f) (int a);};
+struct s2 {int (*f) (double a);};
+int pairnames (int, char **, FILE *(*)(struct buf *, struct stat *, int), int, int);
+int argc;
+char **argv;
+], [
+return f (e, argv, 0) != argv[0] || f (e, argv, 1) != argv[1];
+],
+[am_cv_prog_cc_stdc="$ac_arg"; break])
+done
+CC="$ac_save_CC"
+])
+if test -z "$am_cv_prog_cc_stdc"; then
+ AC_MSG_RESULT([none needed])
+else
+ AC_MSG_RESULT($am_cv_prog_cc_stdc)
+fi
+case "x$am_cv_prog_cc_stdc" in
+ x|xno) ;;
+ *) CC="$CC $am_cv_prog_cc_stdc" ;;
+esac
+])
+
projects / ircu2.10.12-pk.git / blobdiff