aclocal.m4

ncurses 库 可能有用酒用 没用就算了 我觉得还可以用

	if test "$cf_cv_good_bcopy" = yes ; then
		AC_DEFINE(USE_OK_BCOPY)
	else
		AC_DEFINE(USE_MY_MEMMOVE)
	fi
])])dnl
dnl ---------------------------------------------------------------------------
dnl CF_FUNC_NANOSLEEP version: 1 updated: 2005/07/02 15:38:12
dnl -----------------
dnl Check for existence of workable nanosleep() function.  Some systems, e.g.,
dnl AIX 4.x, provide a non-working version.
AC_DEFUN([CF_FUNC_NANOSLEEP],[
AC_CACHE_CHECK(if nanosleep really works,cf_cv_func_nanosleep,[
AC_TRY_RUN([
#include <stdio.h>
#include <errno.h>
#include <time.h>

#ifdef HAVE_SYS_TIME_H
#include <sys/time.h>
#endif

int main() {
	struct timespec ts1, ts2;
	int code;
	ts1.tv_sec  = 0;
	ts1.tv_nsec = 750000000;
	ts2.tv_sec  = 0;
	ts2.tv_nsec = 0;
	errno = 0;
	code = nanosleep(&ts1, &ts2); /* on failure errno is ENOSYS. */
	exit(code != 0);
}
],
	[cf_cv_func_nanosleep=yes],
	[cf_cv_func_nanosleep=no],
	[cf_cv_func_nanosleep=unknown])])

test "$cf_cv_func_nanosleep" = "yes" && AC_DEFINE(HAVE_NANOSLEEP)
])
dnl ---------------------------------------------------------------------------
dnl CF_FUNC_POLL version: 2 updated: 2000/02/06 01:38:04
dnl ------------
dnl See if the poll function really works.  Some platforms have poll(), but
dnl it does not work for terminals or files.
AC_DEFUN([CF_FUNC_POLL],[
AC_CACHE_CHECK(if poll really works,cf_cv_working_poll,[
AC_TRY_RUN([
#include <stdio.h>
#ifdef HAVE_POLL_H
#include <poll.h>
#else
#include <sys/poll.h>
#endif
int main() {
	struct pollfd myfds;
	int ret;

	myfds.fd = 0;
	myfds.events = POLLIN;

	ret = poll(&myfds, 1, 100);
	exit(ret != 0);
}],
	[cf_cv_working_poll=yes],
	[cf_cv_working_poll=no],
	[cf_cv_working_poll=unknown])])
test "$cf_cv_working_poll" = "yes" && AC_DEFINE(HAVE_WORKING_POLL)
])dnl
dnl ---------------------------------------------------------------------------
dnl CF_FUNC_TERMIOS version: 2 updated: 2000/07/22 23:37:24
dnl ---------------
dnl Some old/broken variations define tcgetattr() only as a macro in
dnl termio(s).h
AC_DEFUN([CF_FUNC_TERMIOS],[
AC_REQUIRE([CF_STRUCT_TERMIOS])
AC_CACHE_CHECK(for tcgetattr, cf_cv_have_tcgetattr,[
AC_TRY_LINK([
#include <sys/types.h>
#ifdef HAVE_UNISTD_H
#include <unistd.h>
#endif
#ifdef HAVE_TERMIOS_H
#include <termios.h>
#define TTY struct termios
#else
#ifdef HAVE_TERMIO_H
#include <termio.h>
#define TTY struct termio
#endif
#endif
],[
TTY foo;
tcgetattr(1, &foo);],
[cf_cv_have_tcgetattr=yes],
[cf_cv_have_tcgetattr=no])])
test "$cf_cv_have_tcgetattr" = yes && AC_DEFINE(HAVE_TCGETATTR)
])dnl
dnl ---------------------------------------------------------------------------
dnl CF_FUNC_VSSCANF version: 3 updated: 2001/12/19 00:50:10
dnl ---------------
dnl Check for vsscanf() function, which is in c9x but generally not in earlier
dnl versions of C.  It is in the GNU C library, and can often be simulated by
dnl other functions.
AC_DEFUN([CF_FUNC_VSSCANF],
[
AC_CACHE_CHECK(for vsscanf function or workaround,cf_cv_func_vsscanf,[
AC_TRY_LINK([
#include <stdarg.h>
#include <stdio.h>],[
	va_list ap;
	vsscanf("from", "%d", ap)],[cf_cv_func_vsscanf=vsscanf],[
AC_TRY_LINK([
#include <stdarg.h>
#include <stdio.h>],[
    FILE strbuf;
    char *str = "from";

    strbuf._flag = _IOREAD;
    strbuf._ptr = strbuf._base = (unsigned char *) str;
    strbuf._cnt = strlen(str);
    strbuf._file = _NFILE;
    return (vfscanf(&strbuf, "%d", ap))],[cf_cv_func_vsscanf=vfscanf],[
AC_TRY_LINK([
#include <stdarg.h>
#include <stdio.h>],[
    FILE strbuf;
    char *str = "from";

    strbuf._flag = _IOREAD;
    strbuf._ptr = strbuf._base = (unsigned char *) str;
    strbuf._cnt = strlen(str);
    strbuf._file = _NFILE;
    return (_doscan(&strbuf, "%d", ap))],[cf_cv_func_vsscanf=_doscan],[
cf_cv_func_vsscanf=no])])])])

case $cf_cv_func_vsscanf in #(vi
vsscanf) AC_DEFINE(HAVE_VSSCANF);; #(vi
vfscanf) AC_DEFINE(HAVE_VFSCANF);; #(vi
_doscan) AC_DEFINE(HAVE__DOSCAN);;
esac

])dnl
dnl ---------------------------------------------------------------------------
dnl CF_GCC_ATTRIBUTES version: 10 updated: 2005/05/28 13:16:28
dnl -----------------
dnl Test for availability of useful gcc __attribute__ directives to quiet
dnl compiler warnings.  Though useful, not all are supported -- and contrary
dnl to documentation, unrecognized directives cause older compilers to barf.
AC_DEFUN([CF_GCC_ATTRIBUTES],
[
if test "$GCC" = yes
then
cat > conftest.i <<EOF
#ifndef GCC_PRINTF
#define GCC_PRINTF 0
#endif
#ifndef GCC_SCANF
#define GCC_SCANF 0
#endif
#ifndef GCC_NORETURN
#define GCC_NORETURN /* nothing */
#endif
#ifndef GCC_UNUSED
#define GCC_UNUSED /* nothing */
#endif
EOF
if test "$GCC" = yes
then
	AC_CHECKING([for $CC __attribute__ directives])
cat > conftest.$ac_ext <<EOF
#line __oline__ "configure"
#include "confdefs.h"
#include "conftest.h"
#include "conftest.i"
#if	GCC_PRINTF
#define GCC_PRINTFLIKE(fmt,var) __attribute__((format(printf,fmt,var)))
#else
#define GCC_PRINTFLIKE(fmt,var) /*nothing*/
#endif
#if	GCC_SCANF
#define GCC_SCANFLIKE(fmt,var)  __attribute__((format(scanf,fmt,var)))
#else
#define GCC_SCANFLIKE(fmt,var)  /*nothing*/
#endif
extern void wow(char *,...) GCC_SCANFLIKE(1,2);
extern void oops(char *,...) GCC_PRINTFLIKE(1,2) GCC_NORETURN;
extern void foo(void) GCC_NORETURN;
int main(int argc GCC_UNUSED, char *argv[[]] GCC_UNUSED) { return 0; }
EOF
	for cf_attribute in scanf printf unused noreturn
	do
		CF_UPPER(cf_ATTRIBUTE,$cf_attribute)
		cf_directive="__attribute__(($cf_attribute))"
		echo "checking for $CC $cf_directive" 1>&AC_FD_CC
		case $cf_attribute in
		scanf|printf)
		cat >conftest.h <<EOF
#define GCC_$cf_ATTRIBUTE 1
EOF
			;;
		*)
		cat >conftest.h <<EOF
#define GCC_$cf_ATTRIBUTE $cf_directive
EOF
			;;
		esac
		if AC_TRY_EVAL(ac_compile); then
			test -n "$verbose" && AC_MSG_RESULT(... $cf_attribute)
			cat conftest.h >>confdefs.h
		fi
	done
else
	fgrep define conftest.i >>confdefs.h
fi
rm -rf conftest*
fi
])dnl
dnl ---------------------------------------------------------------------------
dnl CF_GCC_VERSION version: 4 updated: 2005/08/27 09:53:42
dnl --------------
dnl Find version of gcc
AC_DEFUN([CF_GCC_VERSION],[
AC_REQUIRE([AC_PROG_CC])
GCC_VERSION=none
if test "$GCC" = yes ; then
	AC_MSG_CHECKING(version of $CC)
	GCC_VERSION="`${CC} --version| sed -e '2,$d' -e 's/^.*(GCC) //' -e 's/^[[^0-9.]]*//' -e 's/[[^0-9.]].*//'`"
	test -z "$GCC_VERSION" && GCC_VERSION=unknown
	AC_MSG_RESULT($GCC_VERSION)
fi
])dnl
dnl ---------------------------------------------------------------------------
dnl CF_GCC_WARNINGS version: 20 updated: 2005/08/06 18:37:29
dnl ---------------
dnl Check if the compiler supports useful warning options.  There's a few that
dnl we don't use, simply because they're too noisy:
dnl
dnl	-Wconversion (useful in older versions of gcc, but not in gcc 2.7.x)
dnl	-Wredundant-decls (system headers make this too noisy)
dnl	-Wtraditional (combines too many unrelated messages, only a few useful)
dnl	-Wwrite-strings (too noisy, but should review occasionally).  This
dnl		is enabled for ncurses using "--enable-const".
dnl	-pedantic
dnl
dnl Parameter:
dnl	$1 is an optional list of gcc warning flags that a particular
dnl		application might want to use, e.g., "no-unused" for
dnl		-Wno-unused
dnl Special:
dnl	If $with_ext_const is "yes", add a check for -Wwrite-strings
dnl
AC_DEFUN([CF_GCC_WARNINGS],
[
AC_REQUIRE([CF_GCC_VERSION])
CF_INTEL_COMPILER(GCC,INTEL_COMPILER,CFLAGS)

cat > conftest.$ac_ext <<EOF
#line __oline__ "configure"
int main(int argc, char *argv[[]]) { return (argv[[argc-1]] == 0) ; }
EOF

if test "$INTEL_COMPILER" = yes
then
# The "-wdXXX" options suppress warnings:
# remark #1419: external declaration in primary source file
# remark #1682: implicit conversion of a 64-bit integral type to a smaller integral type (potential portability problem)
# remark #1683: explicit conversion of a 64-bit integral type to a smaller integral type (potential portability problem)
# remark #1684: conversion from pointer to same-sized integral type (potential portability problem)
# remark #193: zero used for undefined preprocessing identifier
# remark #593: variable "curs_sb_left_arrow" was set but never used
# remark #810: conversion from "int" to "Dimension={unsigned short}" may lose significant bits
# remark #869: parameter "tw" was never referenced
# remark #981: operands are evaluated in unspecified order
# warning #269: invalid format string conversion

	AC_CHECKING([for $CC warning options])
	cf_save_CFLAGS="$CFLAGS"
	EXTRA_CFLAGS="-Wall"
	for cf_opt in $1 \
		wd1419 \
		wd1682 \
		wd1683 \
		wd1684 \
		wd193 \
		wd279 \
		wd593 \
		wd810 \
		wd869 \
		wd981
	do
		CFLAGS="$cf_save_CFLAGS $EXTRA_CFLAGS -$cf_opt"
		if AC_TRY_EVAL(ac_compile); then
			test -n "$verbose" && AC_MSG_RESULT(... -$cf_opt)
			EXTRA_CFLAGS="$EXTRA_CFLAGS -$cf_opt"
		fi
	done
	CFLAGS="$cf_save_CFLAGS"

elif test "$GCC" = yes
then
	AC_CHECKING([for $CC warning options])
	cf_save_CFLAGS="$CFLAGS"
	EXTRA_CFLAGS="-W -Wall"
	cf_warn_CONST=""
	test "$with_ext_const" = yes && cf_warn_CONST="Wwrite-strings"
	for cf_opt in \
		Wbad-function-cast \
		Wcast-align \
		Wcast-qual \
		Winline \
		Wmissing-declarations \
		Wmissing-prototypes \
		Wnested-externs \
		Wpointer-arith \
		Wshadow \
		Wstrict-prototypes \
		Wundef $cf_warn_CONST $1
	do
		CFLAGS="$cf_save_CFLAGS $EXTRA_CFLAGS -$cf_opt"
		if AC_TRY_EVAL(ac_compile); then
			test -n "$verbose" && AC_MSG_RESULT(... -$cf_opt)
			case $cf_opt in #(vi
			Wcast-qual) #(vi
				CPPFLAGS="$CPPFLAGS -DXTSTRINGDEFINES"
				;;
			Winline) #(vi
				case $GCC_VERSION in
				3.3*)
					CF_VERBOSE(feature is broken in gcc $GCC_VERSION)
					continue;;
				esac
				;;
			esac
			EXTRA_CFLAGS="$EXTRA_CFLAGS -$cf_opt"
		fi
	done
	CFLAGS="$cf_save_CFLAGS"
fi
rm -f conftest*

AC_SUBST(EXTRA_CFLAGS)
])dnl
dnl ---------------------------------------------------------------------------
dnl CF_GNAT_TRY_LINK version: 1 updated: 2004/08/21 19:02:08
dnl ----------------
dnl Verify that a test program compiles/links with GNAT.
dnl $cf_ada_make is set to the program that compiles/links
dnl $ADAFLAGS may be set to the GNAT flags.
dnl
dnl $1 is the text of the spec
dnl $2 is the text of the body
dnl $3 is the shell command to execute if successful
dnl $4 is the shell command to execute if not successful
AC_DEFUN([CF_GNAT_TRY_LINK],
[
rm -f conftest*
cat >>conftest.ads <<CF_EOF
$1
CF_EOF
cat >>conftest.adb <<CF_EOF
$2
CF_EOF
if ( $cf_ada_make $ADAFLAGS conftest 1>&AC_FD_CC 2>&1 ) ; then
ifelse($3,,      :,[      $3])
ifelse($4,,,[else
   $4])
fi
rm -f conftest*
])dnl
dnl ---------------------------------------------------------------------------
dnl CF_GNAT_TRY_RUN version: 3 updated: 2004/08/21 19:02:08
dnl ---------------
dnl Verify that a test program compiles and runs with GNAT
dnl $cf_ada_make is set to the program that compiles/links
dnl $ADAFLAGS may be set to the GNAT flags.
dnl
dnl $1 is the text of the spec
dnl $2 is the text of the body
dnl $3 is the shell command to execute if successful
dnl $4 is the shell command to execute if not successful
AC_DEFUN([CF_GNAT_TRY_RUN],
[
rm -f conftest*
cat >>conftest.ads <<CF_EOF
$1
CF_EOF
cat >>conftest.adb <<CF_EOF
$2
CF_EOF
if ( $cf_ada_make $ADAFLAGS conftest 1>&AC_FD_CC 2>&1 ) ; then
   if ( ./conftest 1>&AC_FD_CC 2>&1 ) ; then
ifelse($3,,      :,[      $3])
ifelse($4,,,[   else
      $4])
   fi
ifelse($4,,,[else
   $4])
fi
rm -f conftest*
])dnl
dnl ---------------------------------------------------------------------------
dnl CF_GNAT_VERSION version: 11 updated: 2003/09/06 19:42:09
dnl ---------------
dnl Verify version of GNAT.
AC_DEFUN([CF_GNAT_VERSION],
[
AC_MSG_CHECKING(for gnat version)
cf_gnat_version=`${cf_ada_make-gnatmake} -v 2>&1 | grep '[[0-9]].[[0-9]][[0-9]]*' |\
  sed -e '2,$d' -e 's/[[^0-9 \.]]//g' -e 's/^[[ ]]*//' -e 's/ .*//'`
AC_MSG_RESULT($cf_gnat_version)

case $cf_gnat_version in
  3.1[[1-9]]*|3.[[2-9]]*|[[4-9]].*)
    cf_cv_prog_gnat_correct=yes
    ;;
  *) echo Unsupported GNAT version $cf_gnat_version. Required is 3.11 or better. Disabling Ada95 binding.
     cf_cv_prog_gnat_correct=no
     ;;
esac
case $cf_gnat_version in
  3.[[1-9]]*|[[4-9]].*)
      cf_compile_generics=generics
      cf_generic_objects="\$(GENOBJS)"
      ;;
  *)  cf_compile_generics=
      cf_generic_objects=
      ;;
esac
])
dnl ---------------------------------------------------------------------------
dnl CF_GNU_SOURCE version: 6 updated: 2005/07/09 13:23:07
dnl -------------
dnl Check if we must define _GNU_SOURCE to get a reasonable value for
dnl _XOPEN_SOURCE, upon which many POSIX definitions depend.  This is a defect
dnl (or misfeature) of glibc2, which breaks portability of many applications,
dnl since it is interwoven with GNU extensions.
dnl
dnl Well, yes we could work around it...
AC_DEFUN([CF_GNU_SOURCE],
[
AC_CACHE_CHECK(if we must define _GNU_SOURCE,cf_cv_gnu_source,[
AC_TRY_COMPILE([#include <sys/types.h>],[
#ifndef _XOPEN_SOURCE
make an error
#endif],
	[cf_cv_gnu_source=no],
	[cf_save="$CPPFLAGS"
	 CPPFLAGS="$CPPFLAGS -D_GNU_SOURCE"
	 AC_TRY_COMPILE([#include <sys/types.h>],[
#ifdef _XOPEN_SOURCE