dnl
dnl Author: Thomas E. Dickey 1995-on
dnl
-dnl $Id: aclocal.m4,v 1.903 2020/03/08 01:05:14 tom Exp $
+dnl $Id: aclocal.m4,v 1.904 2020/03/20 00:46:13 tom Exp $
dnl Macros used in NCURSES auto-configuration script.
dnl
dnl These macros are maintained separately from NCURSES. The copyright on
dnl
dnl ---------------------------------------------------------------------------
dnl ---------------------------------------------------------------------------
-dnl AM_LANGINFO_CODESET version: 4 updated: 2015/04/18 08:56:57
+dnl AM_LANGINFO_CODESET version: 5 updated: 2020/03/10 18:53:47
dnl -------------------
dnl Inserted as requested by gettext 0.10.40
dnl File from /usr/share/aclocal
[
AC_CACHE_CHECK([for nl_langinfo and CODESET], am_cv_langinfo_codeset,
[AC_TRY_LINK([#include <langinfo.h>],
- [char* cs = nl_langinfo(CODESET);],
+ [char* cs = nl_langinfo(CODESET); (void)cs],
am_cv_langinfo_codeset=yes,
am_cv_langinfo_codeset=no)
])
CF_CHECK_EXTERN_DATA($1,ifelse([$2],,int,[$2]))
])dnl
dnl ---------------------------------------------------------------------------
-dnl CF_CHECK_ERRNO version: 12 updated: 2015/04/18 08:56:57
+dnl CF_CHECK_ERRNO version: 13 updated: 2020/03/10 18:53:47
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
#include <stdio.h>
#include <sys/types.h>
#include <errno.h> ],
- ifelse([$2],,int,[$2]) x = (ifelse([$2],,int,[$2])) $1,
+ ifelse([$2],,int,[$2]) x = (ifelse([$2],,int,[$2])) $1; (void)x,
[cf_cv_dcl_$1=yes],
[cf_cv_dcl_$1=no])
])
fi
])
dnl ---------------------------------------------------------------------------
-dnl CF_CONST_X_STRING version: 3 updated: 2020/01/11 18:39:22
+dnl CF_CONST_X_STRING version: 4 updated: 2020/03/10 18:53:47
dnl -----------------
dnl The X11R4-X11R6 Xt specification uses an ambiguous String type for most
dnl character-strings.
#include <stdlib.h>
#include <X11/Intrinsic.h>
],
-[String foo = malloc(1)],[
+[String foo = malloc(1); (void)foo],[
AC_CACHE_CHECK(for X11/Xt const-feature,cf_cv_const_x_string,[
AC_TRY_COMPILE(
])dnl
dnl ---------------------------------------------------------------------------
-dnl CF_GCC_ATTRIBUTES version: 17 updated: 2015/04/12 15:39:00
+dnl CF_GCC_ATTRIBUTES version: 18 updated: 2020/03/10 18:53:47
dnl -----------------
dnl Test for availability of useful gcc __attribute__ directives to quiet
dnl compiler warnings. Though useful, not all are supported -- and contrary
extern void wow(char *,...) GCC_SCANFLIKE(1,2);
extern void oops(char *,...) GCC_PRINTFLIKE(1,2) GCC_NORETURN;
extern void foo(void) GCC_NORETURN;
-int main(int argc GCC_UNUSED, char *argv[[]] GCC_UNUSED) { return 0; }
+int main(int argc GCC_UNUSED, char *argv[[]] GCC_UNUSED) { (void)argc; (void)argv; return 0; }
EOF
cf_printf_attribute=no
cf_scanf_attribute=no
test "$cf_cv_have_isascii" = yes && AC_DEFINE(HAVE_ISASCII,1,[Define to 1 if we have isascii()])
])dnl
dnl ---------------------------------------------------------------------------
-dnl CF_LARGEFILE version: 11 updated: 2018/06/20 20:23:13
+dnl CF_LARGEFILE version: 12 updated: 2020/03/19 20:23:48
dnl ------------
dnl Add checks for large file support.
AC_DEFUN([CF_LARGEFILE],[
struct dirent64 *x = readdir((DIR *)0);
struct dirent *y = readdir((DIR *)0);
int z = x - y;
+ (void)z;
],
[cf_cv_struct_dirent64=yes],
[cf_cv_struct_dirent64=no])
test "$cf_prog_ln_sf" = yes && LN_S="$LN_S -f"
])dnl
dnl ---------------------------------------------------------------------------
-dnl CF_REGEX version: 12 updated: 2015/04/18 08:56:57
+dnl CF_REGEX version: 13 updated: 2020/03/10 18:53:47
dnl --------
dnl Attempt to determine if we've got one of the flavors of regular-expression
dnl code that we can support.
AC_TRY_LINK([#include <$cf_regex_hdr>],[
char *p = compile("", "", "", 0);
int x = step("", "");
+ (void)p;
+ (void)x;
],[
cf_cv_regex_hdrs=$cf_regex_hdr
break
do
AC_TRY_LINK([#include <sys/types.h>
#include <$cf_regex_hdr>],[
- regex_t *p;
+ regex_t *p = 0;
int x = regcomp(p, "", 0);
int y = regexec(p, "", 0, 0, 0);
+ (void)x;
+ (void)y;
regfree(p);
],[
cf_cv_regex_hdrs=$cf_regex_hdr
fi
])
dnl ---------------------------------------------------------------------------
-dnl CF_SIGWINCH version: 2 updated: 2019/03/23 19:54:44
+dnl CF_SIGWINCH version: 3 updated: 2020/03/10 18:53:47
dnl -----------
dnl Use this macro after CF_XOPEN_SOURCE, but do not require it (not all
dnl programs need this test).
AC_TRY_COMPILE([
#include <sys/types.h>
#include <sys/signal.h>
-],[int x = SIGWINCH],
+],[int x = SIGWINCH; (void)x],
[cf_cv_define_sigwinch=yes],
[AC_TRY_COMPILE([
#undef _XOPEN_SOURCE
#undef _POSIX_C_SOURCE
#include <sys/types.h>
#include <sys/signal.h>
-],[int x = SIGWINCH],
+],[int x = SIGWINCH; (void)x],
[cf_cv_define_sigwinch=maybe],
[cf_cv_define_sigwinch=no])
])
#if SIGWINCH != $cf_sigwinch
make an error
#endif
-int x = SIGWINCH],
+int x = SIGWINCH; (void)x],
[cf_cv_fixup_sigwinch=$cf_sigwinch
break])
fi
])dnl
dnl ---------------------------------------------------------------------------
-dnl CF_SIG_ATOMIC_T version: 4 updated: 2020/01/18 12:30:44
+dnl CF_SIG_ATOMIC_T version: 5 updated: 2020/03/10 18:53:47
dnl ---------------
dnl signal handler, but there are some gcc dependencies in that recommendation.
dnl Try anyway.
$cf_type x;
static void handler(int sig)
{
+ (void)sig;
x = 5;
}],
[signal(SIGINT, handler);
test "$cf_cv_sig_atomic_t" != no && AC_DEFINE_UNQUOTED(SIG_ATOMIC_T, $cf_cv_sig_atomic_t,[Define to signal global datatype])
])dnl
dnl ---------------------------------------------------------------------------
-dnl CF_SIZECHANGE version: 14 updated: 2018/06/20 20:23:13
+dnl CF_SIZECHANGE version: 16 updated: 2020/03/19 20:46:13
dnl -------------
dnl Check for definitions & structures needed for window size-changing
dnl
],[
#ifdef TIOCGSIZE
struct ttysize win; /* SunOS 3.0... */
- int y = win.ts_lines;
- int x = win.ts_cols;
+ int y = win.ts_lines = 2;
+ int x = win.ts_cols = 1;
+ (void)y;
+ (void)x;
#else
#ifdef TIOCGWINSZ
struct winsize win; /* everything else */
- int y = win.ws_row;
- int x = win.ws_col;
+ int y = win.ws_row = 2;
+ int x = win.ws_col = 1;
+ (void)y;
+ (void)x;
#else
no TIOCGSIZE or TIOCGWINSZ
#endif /* TIOCGWINSZ */
fi
])dnl
dnl ---------------------------------------------------------------------------
-dnl CF_STRUCT_TERMIOS version: 9 updated: 2018/06/08 21:57:23
+dnl CF_STRUCT_TERMIOS version: 11 updated: 2020/03/19 20:46:13
dnl -----------------
dnl Some machines require _POSIX_SOURCE to completely define struct termios.
AC_DEFUN([CF_STRUCT_TERMIOS],[
if test "$termios_bad" = maybe ; then
AC_MSG_CHECKING(whether termios.h needs _POSIX_SOURCE)
AC_TRY_COMPILE([#include <termios.h>],
- [struct termios foo; int x = foo.c_iflag],
+ [struct termios foo; int x = foo.c_iflag = 1; (void)x],
termios_bad=no, [
AC_TRY_COMPILE([
#define _POSIX_SOURCE
#include <termios.h>],
- [struct termios foo; int x = foo.c_iflag],
+ [struct termios foo; int x = foo.c_iflag = 2; (void)x],
termios_bad=unknown,
termios_bad=yes AC_DEFINE(_POSIX_SOURCE,1,[Define to 1 if we must define _POSIX_SOURCE]))
])