aclocal.m4

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dnl We don't use AC_PREFIX_DEFAULT, because it gets evaluated too soon, and
dnl we don't use AC_PREFIX_PROGRAM, because we cannot distinguish ncurses's
dnl programs from a vendor's.
AC_DEFUN([CF_CFG_DEFAULTS],
[
AC_MSG_CHECKING(for prefix)
if test "x$prefix" = "xNONE" ; then
	case "$cf_cv_system_name" in
		# non-vendor systems don't have a conflict
	openbsd*|freebsd*|linux*|cygwin*|k*bsd*-gnu)
		prefix=/usr
		;;
	*)	prefix=$ac_default_prefix
		;;
	esac
fi
AC_MSG_RESULT($prefix)

if test "x$prefix" = "xNONE" ; then
AC_MSG_CHECKING(for default include-directory)
test -n "$verbose" && echo 1>&AC_FD_MSG
for cf_symbol in \
	$includedir \
	$includedir/ncurses \
	$prefix/include \
	$prefix/include/ncurses \
	/usr/local/include \
	/usr/local/include/ncurses \
	/usr/include \
	/usr/include/ncurses
do
	cf_dir=`eval echo $cf_symbol`
	if test -f $cf_dir/curses.h ; then
	if ( fgrep NCURSES_VERSION $cf_dir/curses.h 2>&1 >/dev/null ) ; then
		includedir="$cf_symbol"
		test -n "$verbose"  && echo $ac_n "	found " 1>&AC_FD_MSG
		break
	fi
	fi
	test -n "$verbose"  && echo "	tested $cf_dir" 1>&AC_FD_MSG
done
AC_MSG_RESULT($includedir)
fi
])dnl
dnl ---------------------------------------------------------------------------
dnl CF_CGETENT version: 3 updated: 2000/08/12 23:18:52
dnl ----------
dnl Check if the terminal-capability database functions are available.  If not,
dnl ncurses has a much-reduced version.
AC_DEFUN([CF_CGETENT],[
AC_MSG_CHECKING(for terminal-capability database functions)
AC_CACHE_VAL(cf_cv_cgetent,[
AC_TRY_LINK([
#include <stdlib.h>],[
	char temp[128];
	char *buf = temp;
	char *db_array = temp;
	cgetent(&buf, /* int *, */ &db_array, "vt100");
	cgetcap(buf, "tc", '=');
	cgetmatch(buf, "tc");
	],
	[cf_cv_cgetent=yes],
	[cf_cv_cgetent=no])
])
AC_MSG_RESULT($cf_cv_cgetent)
test "$cf_cv_cgetent" = yes && AC_DEFINE(HAVE_BSD_CGETENT)
])dnl
dnl ---------------------------------------------------------------------------
dnl CF_CHECK_CACHE version: 10 updated: 2004/05/23 13:03:31
dnl --------------
dnl Check if we're accidentally using a cache from a different machine.
dnl Derive the system name, as a check for reusing the autoconf cache.
dnl
dnl If we've packaged config.guess and config.sub, run that (since it does a
dnl better job than uname).  Normally we'll use AC_CANONICAL_HOST, but allow
dnl an extra parameter that we may override, e.g., for AC_CANONICAL_SYSTEM
dnl which is useful in cross-compiles.
dnl
dnl Note: we would use $ac_config_sub, but that is one of the places where
dnl autoconf 2.5x broke compatibility with autoconf 2.13
AC_DEFUN([CF_CHECK_CACHE],
[
if test -f $srcdir/config.guess || test -f $ac_aux_dir/config.guess ; then
	ifelse([$1],,[AC_CANONICAL_HOST],[$1])
	system_name="$host_os"
else
	system_name="`(uname -s -r) 2>/dev/null`"
	if test -z "$system_name" ; then
		system_name="`(hostname) 2>/dev/null`"
	fi
fi
test -n "$system_name" && AC_DEFINE_UNQUOTED(SYSTEM_NAME,"$system_name")
AC_CACHE_VAL(cf_cv_system_name,[cf_cv_system_name="$system_name"])

test -z "$system_name" && system_name="$cf_cv_system_name"
test -n "$cf_cv_system_name" && AC_MSG_RESULT(Configuring for $cf_cv_system_name)

if test ".$system_name" != ".$cf_cv_system_name" ; then
	AC_MSG_RESULT(Cached system name ($system_name) does not agree with actual ($cf_cv_system_name))
	AC_ERROR("Please remove config.cache and try again.")
fi
])dnl
dnl ---------------------------------------------------------------------------
dnl CF_CHECK_ERRNO version: 9 updated: 2001/12/30 18:03:23
dnl --------------
dnl Check for data that is usually declared in <stdio.h> or <errno.h>, e.g.,
dnl the 'errno' variable.  Define a DECL_xxx symbol if we must declare it
dnl ourselves.
dnl
dnl $1 = the name to check
AC_DEFUN([CF_CHECK_ERRNO],
[
AC_CACHE_CHECK(if external $1 is declared, cf_cv_dcl_$1,[
    AC_TRY_COMPILE([
#ifdef HAVE_STDLIB_H
#include <stdlib.h>
#endif
#include <stdio.h>
#include <sys/types.h>
#include <errno.h> ],
    [long x = (long) $1],
    [cf_cv_dcl_$1=yes],
    [cf_cv_dcl_$1=no])
])

if test "$cf_cv_dcl_$1" = no ; then
    CF_UPPER(cf_result,decl_$1)
    AC_DEFINE_UNQUOTED($cf_result)
fi

# It's possible (for near-UNIX clones) that the data doesn't exist
CF_CHECK_EXTERN_DATA($1,int)
])dnl
dnl ---------------------------------------------------------------------------
dnl CF_CHECK_EXTERN_DATA version: 3 updated: 2001/12/30 18:03:23
dnl --------------------
dnl Check for existence of external data in the current set of libraries.  If
dnl we can modify it, it's real enough.
dnl $1 = the name to check
dnl $2 = its type
AC_DEFUN([CF_CHECK_EXTERN_DATA],
[
AC_CACHE_CHECK(if external $1 exists, cf_cv_have_$1,[
    AC_TRY_LINK([
#undef $1
extern $2 $1;
],
    [$1 = 2],
    [cf_cv_have_$1=yes],
    [cf_cv_have_$1=no])
])

if test "$cf_cv_have_$1" = yes ; then
    CF_UPPER(cf_result,have_$1)
    AC_DEFINE_UNQUOTED($cf_result)
fi

])dnl
dnl ---------------------------------------------------------------------------
dnl CF_CPP_PARAM_INIT version: 4 updated: 2001/04/07 22:31:18
dnl -----------------
dnl Check if the C++ compiler accepts duplicate parameter initialization.  This
dnl is a late feature for the standard and is not in some recent compilers
dnl (1999/9/11).
AC_DEFUN([CF_CPP_PARAM_INIT],
[
if test -n "$CXX"; then
AC_CACHE_CHECK(if $CXX accepts parameter initialization,cf_cv_cpp_param_init,[
	AC_LANG_SAVE
	AC_LANG_CPLUSPLUS
	AC_TRY_RUN([
class TEST {
private:
	int value;
public:
	TEST(int x = 1);
	~TEST();
};

TEST::TEST(int x = 1)	// some compilers do not like second initializer
{
	value = x;
}
void main() { }
],
	[cf_cv_cpp_param_init=yes],
	[cf_cv_cpp_param_init=no],
	[cf_cv_cpp_param_init=unknown])
	AC_LANG_RESTORE
])
fi
test "$cf_cv_cpp_param_init" = yes && AC_DEFINE(CPP_HAS_PARAM_INIT)
])dnl
dnl ---------------------------------------------------------------------------
dnl CF_CPP_STATIC_CAST version: 1 updated: 2005/07/23 16:52:43
dnl ------------------
dnl Check if the C++ compiler accepts static_cast in generics.  This appears to
dnl not be supported in g++ before 3.0
AC_DEFUN([CF_CPP_STATIC_CAST],
[
if test -n "$CXX"; then

AC_CACHE_CHECK(if $CXX accepts static_cast,cf_cv_cpp_static_cast,[
	AC_LANG_SAVE
	AC_LANG_CPLUSPLUS

	AC_TRY_COMPILE([
class NCursesPanel
{
public:
  NCursesPanel(int nlines,
	       int ncols,
	       int begin_y = 0,
	       int begin_x = 0)
  {
  }

  ~NCursesPanel();
};

template<class T> class NCursesUserPanel : public NCursesPanel
{
public:
  NCursesUserPanel (int nlines,
		    int ncols,
		    int begin_y = 0,
		    int begin_x = 0,
		    const T* p_UserData = static_cast<T*>(0))
    : NCursesPanel (nlines, ncols, begin_y, begin_x)
  {
  };
  NCursesUserPanel(const T* p_UserData = static_cast<T*>(0)) : NCursesPanel()
  {
  };

  virtual ~NCursesUserPanel() {};
};
],[
	const char* p_UserData = static_cast<char*>(0)],
	[cf_cv_cpp_static_cast=yes],
	[cf_cv_cpp_static_cast=no])

	AC_LANG_RESTORE
])

fi

test "$cf_cv_cpp_static_cast" = yes && AC_DEFINE(CPP_HAS_STATIC_CAST)
])dnl
dnl ---------------------------------------------------------------------------
dnl CF_CPP_VSCAN_FUNC version: 5 updated: 2001/12/02 01:39:28
dnl -----------------
dnl Check if the g++ compiler supports vscan function (not a standard feature).
AC_DEFUN([CF_CPP_VSCAN_FUNC],
[
if test -n "$CXX"; then

AC_LANG_SAVE
AC_LANG_CPLUSPLUS
AC_CHECK_HEADERS(strstream.h)

AC_CACHE_CHECK(if $CXX supports vscan function,cf_cv_cpp_vscan_func,[
	for cf_vscan_func in strstream strstream_cast stdio
	do
	case $cf_vscan_func in #(vi
	stdio)		cf_vscan_defs=USE_STDIO_VSCAN ;; #(vi
	strstream)	cf_vscan_defs=USE_STRSTREAM_VSCAN ;;
	strstream_cast)	cf_vscan_defs=USE_STRSTREAM_VSCAN_CAST ;;
	esac
	AC_TRY_LINK([
#include <stdio.h>
#include <stdarg.h>
#define $cf_vscan_defs 1
#if defined(USE_STDIO_VSCAN)
#elif defined(HAVE_STRSTREAM_H) && defined(USE_STRSTREAM_VSCAN)
#include <strstream.h>
#endif

int scanw(const char* fmt, ...)
{
    int result = -1;
    char buf[BUFSIZ];

    va_list args;
    va_start(args, fmt);
#if defined(USE_STDIO_VSCAN)
    if (::vsscanf(buf, fmt, args) != -1)
	result = 0;
#elif defined(USE_STRSTREAM_VSCAN)
    strstreambuf ss(buf, sizeof(buf));
    if (ss.vscan(fmt, args) != -1)
	result = 0;
#elif defined(USE_STRSTREAM_VSCAN_CAST)
    strstreambuf ss(buf, sizeof(buf));
    if (ss.vscan(fmt, (_IO_va_list)args) != -1)
	result = 0;
#else
#error case $cf_vscan_func failed
#endif
    va_end(args);
    return result;
}
],[int tmp, foo = scanw("%d", &tmp)],
	[cf_cv_cpp_vscan_func=$cf_vscan_func; break],
	[cf_cv_cpp_vscan_func=no])
	test "$cf_cv_cpp_vscan_func" != no && break
	done
])

AC_LANG_RESTORE
fi

case $cf_cv_cpp_vscan_func in #(vi
stdio) #(vi
	AC_DEFINE(CPP_HAS_VSCAN_FUNC)
	AC_DEFINE(USE_STDIO_VSCAN)
	;;
strstream)
	AC_DEFINE(CPP_HAS_VSCAN_FUNC)
	AC_DEFINE(USE_STRSTREAM_VSCAN)
	;;
strstream_cast)
	AC_DEFINE(CPP_HAS_VSCAN_FUNC)
	AC_DEFINE(USE_STRSTREAM_VSCAN_CAST)
	;;
esac
])dnl
dnl ---------------------------------------------------------------------------
dnl CF_DIRNAME version: 4 updated: 2002/12/21 19:25:52
dnl ----------
dnl "dirname" is not portable, so we fake it with a shell script.
AC_DEFUN([CF_DIRNAME],[$1=`echo $2 | sed -e 's%/[[^/]]*$%%'`])dnl
dnl ---------------------------------------------------------------------------
dnl CF_DIRS_TO_MAKE version: 3 updated: 2002/02/23 20:38:31
dnl ---------------
AC_DEFUN([CF_DIRS_TO_MAKE],
[
DIRS_TO_MAKE="lib"
for cf_item in $cf_list_models
do
	CF_OBJ_SUBDIR($cf_item,cf_subdir)
	for cf_item2 in $DIRS_TO_MAKE
	do
		test $cf_item2 = $cf_subdir && break
	done
	test ".$cf_item2" != ".$cf_subdir" && DIRS_TO_MAKE="$DIRS_TO_MAKE $cf_subdir"
done
for cf_dir in $DIRS_TO_MAKE
do
	test ! -d $cf_dir && mkdir $cf_dir
done
AC_SUBST(DIRS_TO_MAKE)
])dnl
dnl ---------------------------------------------------------------------------
dnl CF_ERRNO version: 5 updated: 1997/11/30 12:44:39
dnl --------
dnl Check if 'errno' is declared in <errno.h>
AC_DEFUN([CF_ERRNO],
[
CF_CHECK_ERRNO(errno)
])dnl
dnl ---------------------------------------------------------------------------
dnl CF_ETIP_DEFINES version: 3 updated: 2003/03/22 19:13:43
dnl ---------------
dnl Test for conflicting definitions of exception in gcc 2.8.0, etc., between
dnl math.h and builtin.h, only for ncurses
AC_DEFUN([CF_ETIP_DEFINES],
[
AC_MSG_CHECKING(for special defines needed for etip.h)
cf_save_CXXFLAGS="$CXXFLAGS"
cf_result="none"
for cf_math in "" MATH_H
do
for cf_excp in "" MATH_EXCEPTION
do
	CXXFLAGS="$cf_save_CXXFLAGS -I${srcdir}/c++ -I${srcdir}/menu -I${srcdir}/include"
	test -n "$cf_math" && CXXFLAGS="$CXXFLAGS -DETIP_NEEDS_${cf_math}"
	test -n "$cf_excp" && CXXFLAGS="$CXXFLAGS -DETIP_NEEDS_${cf_excp}"
AC_TRY_COMPILE([
#include <etip.h.in>
],[],[
	test -n "$cf_math" && AC_DEFINE_UNQUOTED(ETIP_NEEDS_${cf_math})
	test -n "$cf_excp" && AC_DEFINE_UNQUOTED(ETIP_NEEDS_${cf_excp})
	cf_result="$cf_math $cf_excp"
	break
],[])
done
done
AC_MSG_RESULT($cf_result)
CXXFLAGS="$cf_save_CXXFLAGS"
])
dnl ---------------------------------------------------------------------------
dnl CF_FUNC_DLSYM version: 1 updated: 2004/06/16 20:52:45
dnl -------------
dnl Test for dlsym() and related functions, as well as libdl.
dnl
dnl Sets
dnl	$cf_have_dlsym
dnl	$cf_have_libdl
AC_DEFUN([CF_FUNC_DLSYM],[
cf_have_dlsym=no
AC_CHECK_FUNC(dlsym,cf_have_dlsym=yes,[

cf_have_libdl=no
AC_CHECK_LIB(dl,dlsym,[
	cf_have_dlsym=yes
	cf_have_libdl=yes])])

if test "$cf_have_dlsym" = yes ; then
	test "$cf_have_libdl" = yes && LIBS="-ldl $LIBS"

	AC_MSG_CHECKING(whether able to link to dl*() functions)
	AC_TRY_LINK([#include <dlfcn.h>],[
		void *obj;
		if ((obj = dlopen("filename", 0)) != 0) {
			if (dlsym(obj, "symbolname") == 0) {
			dlclose(obj);
			}
		}],[
		AC_DEFINE(HAVE_LIBDL)],[
		AC_MSG_ERROR(Cannot link test program for libdl)])
	AC_MSG_RESULT(ok)
else
	AC_MSG_ERROR(Cannot find dlsym function)
fi
])
dnl ---------------------------------------------------------------------------
dnl CF_FUNC_MEMMOVE version: 5 updated: 2000/08/12 23:18:52
dnl ---------------
dnl Check for memmove, or a bcopy that can handle overlapping copy.  If neither
dnl is found, add our own version of memmove to the list of objects.
AC_DEFUN([CF_FUNC_MEMMOVE],
[
AC_CHECK_FUNC(memmove,,[
AC_CHECK_FUNC(bcopy,[
	AC_CACHE_CHECK(if bcopy does overlapping moves,cf_cv_good_bcopy,[
		AC_TRY_RUN([
int main() {
	static char data[] = "abcdefghijklmnopqrstuwwxyz";
	char temp[40];
	bcopy(data, temp, sizeof(data));
	bcopy(temp+10, temp, 15);
	bcopy(temp+5, temp+15, 10);
	exit (strcmp(temp, "klmnopqrstuwwxypqrstuwwxyz"));
}
		],
		[cf_cv_good_bcopy=yes],
		[cf_cv_good_bcopy=no],
		[cf_cv_good_bcopy=unknown])
		])
	],[cf_cv_good_bcopy=no])