diff options
Diffstat (limited to 'test/aclocal.m4')
| -rw-r--r-- | test/aclocal.m4 | 37 |
1 files changed, 27 insertions, 10 deletions
diff --git a/test/aclocal.m4 b/test/aclocal.m4 index 423744872bee..788c1bbd64b2 100644 --- a/test/aclocal.m4 +++ b/test/aclocal.m4 @@ -1,5 +1,6 @@ dnl*************************************************************************** -dnl Copyright (c) 2003-2019,2020 Free Software Foundation, Inc. * +dnl Copyright 2018-2019,2020 Thomas E. Dickey * +dnl Copyright 2003-2017,2018 Free Software Foundation, Inc. * dnl * dnl Permission is hereby granted, free of charge, to any person obtaining a * dnl copy of this software and associated documentation files (the * @@ -26,7 +27,7 @@ dnl sale, use or other dealings in this Software without prior written * dnl authorization. * dnl*************************************************************************** dnl -dnl $Id: aclocal.m4,v 1.172 2020/01/18 17:30:44 tom Exp $ +dnl $Id: aclocal.m4,v 1.176 2020/02/09 02:02:53 tom Exp $ dnl dnl Author: Thomas E. Dickey dnl @@ -680,7 +681,7 @@ done test "$cf_cv_curses_acs_map" != unknown && AC_DEFINE_UNQUOTED(CURSES_ACS_ARRAY,$cf_cv_curses_acs_map,[Define as needed to override ncurses prefix _nc_]) ]) dnl --------------------------------------------------------------------------- -dnl CF_CURSES_CHECK_DATA version: 7 updated: 2018/01/03 04:47:33 +dnl CF_CURSES_CHECK_DATA version: 9 updated: 2020/02/08 21:00:26 dnl -------------------- dnl Check if curses.h defines the given data/variable. dnl Use this after CF_NCURSES_CONFIG or CF_CURSES_CONFIG. @@ -693,9 +694,9 @@ for cf_data in $1 do AC_MSG_CHECKING(for data $cf_data declaration in ${cf_cv_ncurses_header:-curses.h}) -AC_TRY_COMPILE(CF__CURSES_HEAD,[ -void *foo = &($cf_data) -],[cf_result=yes +AC_TRY_COMPILE(CF__CURSES_HEAD, +CF__CURSES_DATA(foo,$cf_data) +,[cf_result=yes ],[cf_result=no]) AC_MSG_RESULT($cf_result) @@ -711,8 +712,7 @@ else extern char $cf_data; int main(void) { - void *foo = &($cf_data); - fprintf(stderr, "testing linkage of $cf_data:%p\n", (void *)foo); + ]CF__CURSES_DATA(foo,$cf_data)[ ${cf_cv_main_return:-return}(foo == 0); }],[cf_result=yes ],[cf_result=no],[ @@ -720,8 +720,7 @@ int main(void) AC_TRY_LINK(CF__CURSES_HEAD [extern char $cf_data;],[ do { - void *foo = &($cf_data); - fprintf(stderr, "testing linkage of $cf_data:%p\n", (void *)foo); + ]CF__CURSES_DATA(foo,$cf_data)[ ${cf_cv_main_return:-return}(foo == 0); } while (0) ],[cf_result=yes],[cf_result=no]) @@ -4433,6 +4432,24 @@ to makefile.]) fi ])dnl dnl --------------------------------------------------------------------------- +dnl CF__CURSES_DATA version: 2 updated: 2020/02/08 21:00:26 +dnl --------------- +dnl Attempt to make a copy of a curses data item. This is needed in the +dnl check-data configure tests when using ncurses, because the symbol may be +dnl actually a function return-value. That could happen if the linker is +dnl broken (does not resolve data-only references), or if ncurses is configured +dnl to support re-entrant code. +dnl $1 = target +dnl $2 = source +define([CF__CURSES_DATA],[ +#if defined($2) && ((defined(NCURSES_WRAPPED_VAR) && (NCURSES_VERSION_PATCH < 20200208)) || defined(NCURSES_BROKEN_LINKER) || defined(NCURSES_REENTRANT)) + const void *$1 = (const void *)($2); +#else + const void *$1 = &($2); +#endif + fprintf(stderr, "testing linkage of $2:%p\n", (const void *)$1); +])dnl +dnl --------------------------------------------------------------------------- dnl CF__CURSES_HEAD version: 2 updated: 2010/10/23 15:54:49 dnl --------------- dnl Define a reusable chunk which includes <curses.h> and <term.h> when they |