[master] dd0a14f Fix up curses detection logic, Solaris fixes
Tollef Fog Heen
tfheen at varnish-cache.org
Mon Jul 1 14:28:36 CEST 2013
commit dd0a14fcad95cd107980499f64128df4990f38e5
Author: Tollef Fog Heen <tfheen at varnish-software.com>
Date: Fri Jun 14 09:12:09 2013 +0200
Fix up curses detection logic, Solaris fixes
Makes git master compile on Solaris again, and mostly work.
diff --git a/bin/Makefile.am b/bin/Makefile.am
index 02bfe66..0700f27 100644
--- a/bin/Makefile.am
+++ b/bin/Makefile.am
@@ -5,7 +5,7 @@
#SUBDIRS = varnishadm varnishd varnishlog varnishncsa varnishreplay varnishtest
SUBDIRS = varnishadm varnishd varnishlog varnishtest
-if HAVE_CURSES
+if VARNISH_CURSES
#SUBDIRS += varnishhist varnishstat varnishtop
SUBDIRS += varnishstat
endif
diff --git a/bin/varnishhist/Makefile.am b/bin/varnishhist/Makefile.am
index 91719e8..5423155 100644
--- a/bin/varnishhist/Makefile.am
+++ b/bin/varnishhist/Makefile.am
@@ -14,7 +14,7 @@ varnishhist_LDADD = \
$(top_builddir)/lib/libvarnishcompat/libvarnishcompat.la \
$(top_builddir)/lib/libvarnishapi/libvarnishapi.la \
-lm \
- ${CURSES_LIBS} ${RT_LIBS} ${PTHREAD_LIBS}
+ @CURSES_LIB@ ${RT_LIBS} ${PTHREAD_LIBS}
varnishhist.1: $(top_srcdir)/doc/sphinx/reference/varnishhist.rst
if HAVE_RST2MAN
diff --git a/bin/varnishstat/Makefile.am b/bin/varnishstat/Makefile.am
index 6060438..d22edac 100644
--- a/bin/varnishstat/Makefile.am
+++ b/bin/varnishstat/Makefile.am
@@ -18,7 +18,7 @@ varnishstat_SOURCES = \
varnishstat_LDADD = \
$(top_builddir)/lib/libvarnishcompat/libvarnishcompat.la \
$(top_builddir)/lib/libvarnishapi/libvarnishapi.la \
- ${CURSES_LIBS} ${RT_LIBS} ${LIBM} ${PTHREAD_LIBS}
+ @CURSES_LIB@ ${RT_LIBS} ${LIBM} ${PTHREAD_LIBS}
varnishstat.1: $(top_srcdir)/doc/sphinx/reference/varnishstat.rst
if HAVE_RST2MAN
diff --git a/bin/varnishstat/varnishstat_curses.c b/bin/varnishstat/varnishstat_curses.c
index 6fc7c8a..16df1b4 100644
--- a/bin/varnishstat/varnishstat_curses.c
+++ b/bin/varnishstat/varnishstat_curses.c
@@ -54,12 +54,18 @@
#include "varnishstat.h"
-#ifdef HAVE_NCURSES_CURSES_H
+#if defined HAVE_NCURSESW_CURSES_H
+# include <ncursesw/curses.h>
+#elif defined HAVE_NCURSESW_H
+# include <ncursesw.h>
+#elif defined HAVE_NCURSES_CURSES_H
# include <ncurses/curses.h>
+#elif defined HAVE_NCURSES_H
+# include <ncurses.h>
+#elif defined HAVE_CURSES_H
+# include <curses.h>
#else
-# ifdef HAVE_CURSES_H
-# include <curses.h>
-# endif
+# error "SysV or X/Open-compatible Curses header file required"
#endif
#define LINES_STATUS 3
@@ -892,10 +898,12 @@ do_curses(struct VSM_data *vd, int delay)
switch (ch = wgetch(w_status)) {
case ERR:
break;
+#ifdef KEY_RESIZE /* sigh, Solaris lacks this.. */
case KEY_RESIZE:
make_windows();
update_position();
break;
+#endif
default:
handle_keypress(ch);
break;
diff --git a/bin/varnishtop/Makefile.am b/bin/varnishtop/Makefile.am
index b2f5c89..54e672f 100644
--- a/bin/varnishtop/Makefile.am
+++ b/bin/varnishtop/Makefile.am
@@ -13,7 +13,7 @@ varnishtop_SOURCES = varnishtop.c \
varnishtop_LDADD = \
$(top_builddir)/lib/libvarnishcompat/libvarnishcompat.la \
$(top_builddir)/lib/libvarnishapi/libvarnishapi.la \
- ${CURSES_LIBS} ${RT_LIBS} ${LIBM} ${PTHREAD_LIBS}
+ @CURSES_LIB@ ${RT_LIBS} ${LIBM} ${PTHREAD_LIBS}
varnishtop.1: $(top_srcdir)/doc/sphinx/reference/varnishtop.rst
if HAVE_RST2MAN
diff --git a/configure.ac b/configure.ac
index f2efa37..a43f209 100644
--- a/configure.ac
+++ b/configure.ac
@@ -84,18 +84,8 @@ DL_LIBS="${LIBS}"
LIBS="${save_LIBS}"
AC_SUBST(DL_LIBS)
-save_LIBS="${LIBS}"
-LIBS=""
-AC_SEARCH_LIBS(initscr, [curses ncurses],
- [have_curses=yes], [have_curses=no])
-CURSES_LIBS="${LIBS}"
-LIBS="${save_LIBS}"
-AC_SUBST(CURSES_LIBS)
-if test "$have_curses" = no; then
- AC_MSG_WARN([curses not found; some tools will not be built])
-fi
-AC_CHECK_HEADERS([ncurses/curses.h curses.h])
-AM_CONDITIONAL([HAVE_CURSES], [test x$have_curses = xyes])
+AX_WITH_CURSES
+AM_CONDITIONAL(VARNISH_CURSES, test x$ax_cv_curses = xyes)
save_LIBS="${LIBS}"
LIBS=""
diff --git a/m4/ax_with_curses.m4 b/m4/ax_with_curses.m4
new file mode 100644
index 0000000..33a37ac
--- /dev/null
+++ b/m4/ax_with_curses.m4
@@ -0,0 +1,518 @@
+# ===========================================================================
+# http://www.gnu.org/software/autoconf-archive/ax_with_curses.html
+# ===========================================================================
+#
+# SYNOPSIS
+#
+# AX_WITH_CURSES
+#
+# DESCRIPTION
+#
+# This macro checks whether a SysV or X/Open-compatible Curses library is
+# present, along with the associated header file. The NcursesW
+# (wide-character) library is searched for first, followed by Ncurses,
+# then the system-default plain Curses. The first library found is the
+# one returned.
+#
+# The following options are understood: --with-ncursesw, --with-ncurses,
+# --without-ncursesw, --without-ncurses. The "--with" options force the
+# macro to use that particular library, terminating with an error if not
+# found. The "--without" options simply skip the check for that library.
+# The effect on the search pattern is:
+#
+# (no options) - NcursesW, Ncurses, Curses
+# --with-ncurses --with-ncursesw - NcursesW only [*]
+# --without-ncurses --with-ncursesw - NcursesW only [*]
+# --with-ncursesw - NcursesW only [*]
+# --with-ncurses --without-ncursesw - Ncurses only [*]
+# --with-ncurses - NcursesW, Ncurses [**]
+# --without-ncurses --without-ncursesw - Curses only
+# --without-ncursesw - Ncurses, Curses
+# --without-ncurses - NcursesW, Curses
+#
+# [*] If the library is not found, abort the configure script.
+#
+# [**] If the second library (Ncurses) is not found, abort configure.
+#
+# The following preprocessor symbols may be defined by this macro if the
+# appropriate conditions are met:
+#
+# HAVE_CURSES - if any SysV or X/Open Curses library found
+# HAVE_CURSES_ENHANCED - if library supports X/Open Enhanced functions
+# HAVE_CURSES_COLOR - if library supports color (enhanced functions)
+# HAVE_CURSES_OBSOLETE - if library supports certain obsolete features
+# HAVE_NCURSESW - if NcursesW (wide char) library is to be used
+# HAVE_NCURSES - if the Ncurses library is to be used
+#
+# HAVE_CURSES_H - if <curses.h> is present and should be used
+# HAVE_NCURSESW_H - if <ncursesw.h> should be used
+# HAVE_NCURSES_H - if <ncurses.h> should be used
+# HAVE_NCURSESW_CURSES_H - if <ncursesw/curses.h> should be used
+# HAVE_NCURSES_CURSES_H - if <ncurses/curses.h> should be used
+#
+# (These preprocessor symbols are discussed later in this document.)
+#
+# The following output variable is defined by this macro; it is precious
+# and may be overridden on the ./configure command line:
+#
+# CURSES_LIB - library to add to xxx_LDADD
+#
+# The library listed in CURSES_LIB is NOT added to LIBS by default. You
+# need to add CURSES_LIB to the appropriate xxx_LDADD line in your
+# Makefile.am. For example:
+#
+# prog_LDADD = @CURSES_LIB@
+#
+# If CURSES_LIB is set on the configure command line (such as by running
+# "./configure CURSES_LIB=-lmycurses"), then the only header searched for
+# is <curses.h>. The user may use the CPPFLAGS precious variable to
+# override the standard #include search path. If the user needs to
+# specify an alternative path for a library (such as for a non-standard
+# NcurseW), the user should use the LDFLAGS variable.
+#
+# The following shell variables may be defined by this macro:
+#
+# ax_cv_curses - set to "yes" if any Curses library found
+# ax_cv_curses_enhanced - set to "yes" if Enhanced functions present
+# ax_cv_curses_color - set to "yes" if color functions present
+# ax_cv_curses_obsolete - set to "yes" if obsolete features present
+#
+# ax_cv_ncursesw - set to "yes" if NcursesW library found
+# ax_cv_ncurses - set to "yes" if Ncurses library found
+# ax_cv_plaincurses - set to "yes" if plain Curses library found
+# ax_cv_curses_which - set to "ncursesw", "ncurses", "plaincurses" or "no"
+#
+# These variables can be used in your configure.ac to determine the level
+# of support you need from the Curses library. For example, if you must
+# have either Ncurses or NcursesW, you could include:
+#
+# AX_WITH_CURSES
+# if test "x$ax_cv_ncursesw" != xyes && test "x$ax_cv_ncurses" != xyes; then
+# AX_MSG_ERROR([requires either NcursesW or Ncurses library])
+# fi
+#
+# If any Curses library will do (but one must be present and must support
+# color), you could use:
+#
+# AX_WITH_CURSES
+# if test "x$ax_cv_curses" != xyes || test "x$ax_cv_curses_color" != xyes; then
+# AC_MSG_ERROR([requires an X/Open-compatible Curses library with color])
+# fi
+#
+# Certain preprocessor symbols and shell variables defined by this macro
+# can be used to determine various features of the Curses library. In
+# particular, HAVE_CURSES and ax_cv_curses are defined if the Curses
+# library found conforms to the traditional SysV and/or X/Open Base Curses
+# definition. Any working Curses library conforms to this level.
+#
+# HAVE_CURSES_ENHANCED and ax_cv_curses_enhanced are defined if the
+# library supports the X/Open Enhanced Curses definition. In particular,
+# the wide-character types attr_t, cchar_t and wint_t, the functions
+# wattr_set() and wget_wch() and the macros WA_NORMAL and _XOPEN_CURSES
+# are checked. The Ncurses library does NOT conform to this definition,
+# although NcursesW does.
+#
+# HAVE_CURSES_COLOR and ax_cv_curses_color are defined if the library
+# supports color functions and macros such as COLOR_PAIR, A_COLOR,
+# COLOR_WHITE, COLOR_RED and init_pair(). These are NOT part of the
+# X/Open Base Curses definition, but are part of the Enhanced set of
+# functions. The Ncurses library DOES support these functions, as does
+# NcursesW.
+#
+# HAVE_CURSES_OBSOLETE and ax_cv_curses_obsolete are defined if the
+# library supports certain features present in SysV and BSD Curses but not
+# defined in the X/Open definition. In particular, the functions
+# getattrs(), getcurx() and getmaxx() are checked.
+#
+# To use the HAVE_xxx_H preprocessor symbols, insert the following into
+# your system.h (or equivalent) header file:
+#
+# #if defined HAVE_NCURSESW_CURSES_H
+# # include <ncursesw/curses.h>
+# #elif defined HAVE_NCURSESW_H
+# # include <ncursesw.h>
+# #elif defined HAVE_NCURSES_CURSES_H
+# # include <ncurses/curses.h>
+# #elif defined HAVE_NCURSES_H
+# # include <ncurses.h>
+# #elif defined HAVE_CURSES_H
+# # include <curses.h>
+# #else
+# # error "SysV or X/Open-compatible Curses header file required"
+# #endif
+#
+# For previous users of this macro: you should not need to change anything
+# in your configure.ac or Makefile.am, as the previous (serial 10)
+# semantics are still valid. However, you should update your system.h (or
+# equivalent) header file to the fragment shown above. You are encouraged
+# also to make use of the extended functionality provided by this version
+# of AX_WITH_CURSES, as well as in the additional macros
+# AX_WITH_CURSES_PANEL, AX_WITH_CURSES_MENU and AX_WITH_CURSES_FORM.
+#
+# LICENSE
+#
+# Copyright (c) 2009 Mark Pulford <mark at kyne.com.au>
+# Copyright (c) 2009 Damian Pietras <daper at daper.net>
+# Copyright (c) 2012 Reuben Thomas <rrt at sc3d.org>
+# Copyright (c) 2011 John Zaitseff <J.Zaitseff at zap.org.au>
+#
+# This program is free software: you can redistribute it and/or modify it
+# under the terms of the GNU General Public License as published by the
+# Free Software Foundation, either version 3 of the License, or (at your
+# option) any later version.
+#
+# This program is distributed in the hope that it will be useful, but
+# WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
+# Public License for more details.
+#
+# You should have received a copy of the GNU General Public License along
+# with this program. If not, see <http://www.gnu.org/licenses/>.
+#
+# As a special exception, the respective Autoconf Macro's copyright owner
+# gives unlimited permission to copy, distribute and modify the configure
+# scripts that are the output of Autoconf when processing the Macro. You
+# need not follow the terms of the GNU General Public License when using
+# or distributing such scripts, even though portions of the text of the
+# Macro appear in them. The GNU General Public License (GPL) does govern
+# all other use of the material that constitutes the Autoconf Macro.
+#
+# This special exception to the GPL applies to versions of the Autoconf
+# Macro released by the Autoconf Archive. When you make and distribute a
+# modified version of the Autoconf Macro, you may extend this special
+# exception to the GPL to apply to your modified version as well.
+
+#serial 13
+
+AU_ALIAS([MP_WITH_CURSES], [AX_WITH_CURSES])
+AC_DEFUN([AX_WITH_CURSES], [
+ AC_ARG_VAR([CURSES_LIB], [linker library for Curses, e.g. -lcurses])
+ AC_ARG_WITH([ncurses], [AS_HELP_STRING([--with-ncurses],
+ [force the use of Ncurses or NcursesW])],
+ [], [with_ncurses=check])
+ AC_ARG_WITH([ncursesw], [AS_HELP_STRING([--without-ncursesw],
+ [do not use NcursesW (wide character support)])],
+ [], [with_ncursesw=check])
+
+ ax_saved_LIBS=$LIBS
+ AS_IF([test "x$with_ncurses" = xyes || test "x$with_ncursesw" = xyes],
+ [ax_with_plaincurses=no], [ax_with_plaincurses=check])
+
+ ax_cv_curses_which=no
+
+ # Test for NcursesW
+
+ AS_IF([test "x$CURSES_LIB" = x && test "x$with_ncursesw" != xno], [
+ LIBS="$ax_saved_LIBS -lncursesw"
+
+ AC_CACHE_CHECK([for NcursesW wide-character library], [ax_cv_ncursesw], [
+ AC_LINK_IFELSE([AC_LANG_CALL([], [initscr])],
+ [ax_cv_ncursesw=yes], [ax_cv_ncursesw=no])
+ ])
+ AS_IF([test "x$ax_cv_ncursesw" = xno && test "x$with_ncursesw" = xyes], [
+ AC_MSG_ERROR([--with-ncursesw specified but could not find NcursesW library])
+ ])
+
+ AS_IF([test "x$ax_cv_ncursesw" = xyes], [
+ ax_cv_curses=yes
+ ax_cv_curses_which=ncursesw
+ CURSES_LIB="-lncursesw"
+ AC_DEFINE([HAVE_NCURSESW], [1], [Define to 1 if the NcursesW library is present])
+ AC_DEFINE([HAVE_CURSES], [1], [Define to 1 if a SysV or X/Open compatible Curses library is present])
+
+ AC_CACHE_CHECK([for working ncursesw/curses.h], [ax_cv_header_ncursesw_curses_h], [
+ AC_LINK_IFELSE([AC_LANG_PROGRAM([[
+ @%:@define _XOPEN_SOURCE_EXTENDED 1
+ @%:@include <ncursesw/curses.h>
+ ]], [[
+ chtype a = A_BOLD;
+ int b = KEY_LEFT;
+ chtype c = COLOR_PAIR(1) & A_COLOR;
+ attr_t d = WA_NORMAL;
+ cchar_t e;
+ wint_t f;
+ int g = getattrs(stdscr);
+ int h = getcurx(stdscr) + getmaxx(stdscr);
+ initscr();
+ init_pair(1, COLOR_WHITE, COLOR_RED);
+ wattr_set(stdscr, d, 0, NULL);
+ wget_wch(stdscr, &f);
+ ]])],
+ [ax_cv_header_ncursesw_curses_h=yes],
+ [ax_cv_header_ncursesw_curses_h=no])
+ ])
+ AS_IF([test "x$ax_cv_header_ncursesw_curses_h" = xyes], [
+ ax_cv_curses_enhanced=yes
+ ax_cv_curses_color=yes
+ ax_cv_curses_obsolete=yes
+ AC_DEFINE([HAVE_CURSES_ENHANCED], [1], [Define to 1 if library supports X/Open Enhanced functions])
+ AC_DEFINE([HAVE_CURSES_COLOR], [1], [Define to 1 if library supports color (enhanced functions)])
+ AC_DEFINE([HAVE_CURSES_OBSOLETE], [1], [Define to 1 if library supports certain obsolete features])
+ AC_DEFINE([HAVE_NCURSESW_CURSES_H], [1], [Define to 1 if <ncursesw/curses.h> is present])
+ ])
+
+ AC_CACHE_CHECK([for working ncursesw.h], [ax_cv_header_ncursesw_h], [
+ AC_LINK_IFELSE([AC_LANG_PROGRAM([[
+ @%:@define _XOPEN_SOURCE_EXTENDED 1
+ @%:@include <ncursesw.h>
+ ]], [[
+ chtype a = A_BOLD;
+ int b = KEY_LEFT;
+ chtype c = COLOR_PAIR(1) & A_COLOR;
+ attr_t d = WA_NORMAL;
+ cchar_t e;
+ wint_t f;
+ int g = getattrs(stdscr);
+ int h = getcurx(stdscr) + getmaxx(stdscr);
+ initscr();
+ init_pair(1, COLOR_WHITE, COLOR_RED);
+ wattr_set(stdscr, d, 0, NULL);
+ wget_wch(stdscr, &f);
+ ]])],
+ [ax_cv_header_ncursesw_h=yes],
+ [ax_cv_header_ncursesw_h=no])
+ ])
+ AS_IF([test "x$ax_cv_header_ncursesw_h" = xyes], [
+ ax_cv_curses_enhanced=yes
+ ax_cv_curses_color=yes
+ ax_cv_curses_obsolete=yes
+ AC_DEFINE([HAVE_CURSES_ENHANCED], [1], [Define to 1 if library supports X/Open Enhanced functions])
+ AC_DEFINE([HAVE_CURSES_COLOR], [1], [Define to 1 if library supports color (enhanced functions)])
+ AC_DEFINE([HAVE_CURSES_OBSOLETE], [1], [Define to 1 if library supports certain obsolete features])
+ AC_DEFINE([HAVE_NCURSESW_H], [1], [Define to 1 if <ncursesw.h> is present])
+ ])
+
+ AC_CACHE_CHECK([for working ncurses.h], [ax_cv_header_ncurses_h_with_ncursesw], [
+ AC_LINK_IFELSE([AC_LANG_PROGRAM([[
+ @%:@define _XOPEN_SOURCE_EXTENDED 1
+ @%:@include <ncurses.h>
+ ]], [[
+ chtype a = A_BOLD;
+ int b = KEY_LEFT;
+ chtype c = COLOR_PAIR(1) & A_COLOR;
+ attr_t d = WA_NORMAL;
+ cchar_t e;
+ wint_t f;
+ int g = getattrs(stdscr);
+ int h = getcurx(stdscr) + getmaxx(stdscr);
+ initscr();
+ init_pair(1, COLOR_WHITE, COLOR_RED);
+ wattr_set(stdscr, d, 0, NULL);
+ wget_wch(stdscr, &f);
+ ]])],
+ [ax_cv_header_ncurses_h_with_ncursesw=yes],
+ [ax_cv_header_ncurses_h_with_ncursesw=no])
+ ])
+ AS_IF([test "x$ax_cv_header_ncurses_h_with_ncursesw" = xyes], [
+ ax_cv_curses_enhanced=yes
+ ax_cv_curses_color=yes
+ ax_cv_curses_obsolete=yes
+ AC_DEFINE([HAVE_CURSES_ENHANCED], [1], [Define to 1 if library supports X/Open Enhanced functions])
+ AC_DEFINE([HAVE_CURSES_COLOR], [1], [Define to 1 if library supports color (enhanced functions)])
+ AC_DEFINE([HAVE_CURSES_OBSOLETE], [1], [Define to 1 if library supports certain obsolete features])
+ AC_DEFINE([HAVE_NCURSES_H], [1], [Define to 1 if <ncurses.h> is present])
+ ])
+
+ AS_IF([test "x$ax_cv_header_ncursesw_curses_h" = xno && test "x$ax_cv_header_ncursesw_h" = xno && test "x$ax_cv_header_ncurses_h_with_ncursesw" = xno], [
+ AC_MSG_WARN([could not find a working ncursesw/curses.h, ncursesw.h or ncurses.h])
+ ])
+ ])
+ ])
+
+ # Test for Ncurses
+
+ AS_IF([test "x$CURSES_LIB" = x && test "x$with_ncurses" != xno && test "x$ax_cv_curses_which" = xno], [
+ LIBS="$ax_saved_LIBS -lncurses"
+
+ AC_CACHE_CHECK([for Ncurses library], [ax_cv_ncurses], [
+ AC_LINK_IFELSE([AC_LANG_CALL([], [initscr])],
+ [ax_cv_ncurses=yes], [ax_cv_ncurses=no])
+ ])
+ AS_IF([test "x$ax_cv_ncurses" = xno && test "x$with_ncurses" = xyes], [
+ AC_MSG_ERROR([--with-ncurses specified but could not find Ncurses library])
+ ])
+
+ AS_IF([test "x$ax_cv_ncurses" = xyes], [
+ ax_cv_curses=yes
+ ax_cv_curses_which=ncurses
+ CURSES_LIB="-lncurses"
+ AC_DEFINE([HAVE_NCURSES], [1], [Define to 1 if the Ncurses library is present])
+ AC_DEFINE([HAVE_CURSES], [1], [Define to 1 if a SysV or X/Open compatible Curses library is present])
+
+ AC_CACHE_CHECK([for working ncurses/curses.h], [ax_cv_header_ncurses_curses_h], [
+ AC_LINK_IFELSE([AC_LANG_PROGRAM([[
+ @%:@include <ncurses/curses.h>
+ ]], [[
+ chtype a = A_BOLD;
+ int b = KEY_LEFT;
+ chtype c = COLOR_PAIR(1) & A_COLOR;
+ int g = getattrs(stdscr);
+ int h = getcurx(stdscr) + getmaxx(stdscr);
+ initscr();
+ init_pair(1, COLOR_WHITE, COLOR_RED);
+ ]])],
+ [ax_cv_header_ncurses_curses_h=yes],
+ [ax_cv_header_ncurses_curses_h=no])
+ ])
+ AS_IF([test "x$ax_cv_header_ncurses_curses_h" = xyes], [
+ ax_cv_curses_color=yes
+ ax_cv_curses_obsolete=yes
+ AC_DEFINE([HAVE_CURSES_COLOR], [1], [Define to 1 if library supports color (enhanced functions)])
+ AC_DEFINE([HAVE_CURSES_OBSOLETE], [1], [Define to 1 if library supports certain obsolete features])
+ AC_DEFINE([HAVE_NCURSES_CURSES_H], [1], [Define to 1 if <ncurses/curses.h> is present])
+ ])
+
+ AC_CACHE_CHECK([for working ncurses.h], [ax_cv_header_ncurses_h], [
+ AC_LINK_IFELSE([AC_LANG_PROGRAM([[
+ @%:@include <ncurses.h>
+ ]], [[
+ chtype a = A_BOLD;
+ int b = KEY_LEFT;
+ chtype c = COLOR_PAIR(1) & A_COLOR;
+ int g = getattrs(stdscr);
+ int h = getcurx(stdscr) + getmaxx(stdscr);
+ initscr();
+ init_pair(1, COLOR_WHITE, COLOR_RED);
+ ]])],
+ [ax_cv_header_ncurses_h=yes],
+ [ax_cv_header_ncurses_h=no])
+ ])
+ AS_IF([test "x$ax_cv_header_ncurses_h" = xyes], [
+ ax_cv_curses_color=yes
+ ax_cv_curses_obsolete=yes
+ AC_DEFINE([HAVE_CURSES_COLOR], [1], [Define to 1 if library supports color (enhanced functions)])
+ AC_DEFINE([HAVE_CURSES_OBSOLETE], [1], [Define to 1 if library supports certain obsolete features])
+ AC_DEFINE([HAVE_NCURSES_H], [1], [Define to 1 if <ncurses.h> is present])
+ ])
+
+ AS_IF([test "x$ax_cv_header_ncurses_curses_h" = xno && test "x$ax_cv_header_ncurses_h" = xno], [
+ AC_MSG_WARN([could not find a working ncurses/curses.h or ncurses.h])
+ ])
+ ])
+ ])
+
+ # Test for plain Curses (or if CURSES_LIB was set by user)
+
+ AS_IF([test "x$with_plaincurses" != xno && test "x$ax_cv_curses_which" = xno], [
+ AS_IF([test "x$CURSES_LIB" != x], [
+ LIBS="$ax_saved_LIBS $CURSES_LIB"
+ ], [
+ LIBS="$ax_saved_LIBS -lcurses"
+ ])
+
+ AC_CACHE_CHECK([for Curses library], [ax_cv_plaincurses], [
+ AC_LINK_IFELSE([AC_LANG_CALL([], [initscr])],
+ [ax_cv_plaincurses=yes], [ax_cv_plaincurses=no])
+ ])
+
+ AS_IF([test "x$ax_cv_plaincurses" = xyes], [
+ ax_cv_curses=yes
+ ax_cv_curses_which=plaincurses
+ AS_IF([test "x$CURSES_LIB" = x], [
+ CURSES_LIB="-lcurses"
+ ])
+ AC_DEFINE([HAVE_CURSES], [1], [Define to 1 if a SysV or X/Open compatible Curses library is present])
+
+ # Check for base conformance (and header file)
+
+ AC_CACHE_CHECK([for working curses.h], [ax_cv_header_curses_h], [
+ AC_LINK_IFELSE([AC_LANG_PROGRAM([[
+ @%:@include <curses.h>
+ ]], [[
+ chtype a = A_BOLD;
+ int b = KEY_LEFT;
+ initscr();
+ ]])],
+ [ax_cv_header_curses_h=yes],
+ [ax_cv_header_curses_h=no])
+ ])
+ AS_IF([test "x$ax_cv_header_curses_h" = xyes], [
+ AC_DEFINE([HAVE_CURSES_H], [1], [Define to 1 if <curses.h> is present])
+
+ # Check for X/Open Enhanced conformance
+
+ AC_CACHE_CHECK([for X/Open Enhanced Curses conformance], [ax_cv_plaincurses_enhanced], [
+ AC_LINK_IFELSE([AC_LANG_PROGRAM([[
+ @%:@define _XOPEN_SOURCE_EXTENDED 1
+ @%:@include <curses.h>
+ @%:@ifndef _XOPEN_CURSES
+ @%:@error "this Curses library is not enhanced"
+ "this Curses library is not enhanced"
+ @%:@endif
+ ]], [[
+ chtype a = A_BOLD;
+ int b = KEY_LEFT;
+ chtype c = COLOR_PAIR(1) & A_COLOR;
+ attr_t d = WA_NORMAL;
+ cchar_t e;
+ wint_t f;
+ initscr();
+ init_pair(1, COLOR_WHITE, COLOR_RED);
+ wattr_set(stdscr, d, 0, NULL);
+ wget_wch(stdscr, &f);
+ ]])],
+ [ax_cv_plaincurses_enhanced=yes],
+ [ax_cv_plaincurses_enhanced=no])
+ ])
+ AS_IF([test "x$ax_cv_plaincurses_enhanced" = xyes], [
+ ax_cv_curses_enhanced=yes
+ ax_cv_curses_color=yes
+ AC_DEFINE([HAVE_CURSES_ENHANCED], [1], [Define to 1 if library supports X/Open Enhanced functions])
+ AC_DEFINE([HAVE_CURSES_COLOR], [1], [Define to 1 if library supports color (enhanced functions)])
+ ])
+
+ # Check for color functions
+
+ AC_CACHE_CHECK([for Curses color functions], [ax_cv_plaincurses_color], [
+ AC_LINK_IFELSE([AC_LANG_PROGRAM([[
+ @%:@define _XOPEN_SOURCE_EXTENDED 1
+ @%:@include <curses.h>
+ ]], [[
+ chtype a = A_BOLD;
+ int b = KEY_LEFT;
+ chtype c = COLOR_PAIR(1) & A_COLOR;
+ initscr();
+ init_pair(1, COLOR_WHITE, COLOR_RED);
+ ]])],
+ [ax_cv_plaincurses_color=yes],
+ [ax_cv_plaincurses_color=no])
+ ])
+ AS_IF([test "x$ax_cv_plaincurses_color" = xyes], [
+ ax_cv_curses_color=yes
+ AC_DEFINE([HAVE_CURSES_COLOR], [1], [Define to 1 if library supports color (enhanced functions)])
+ ])
+
+ # Check for obsolete functions
+
+ AC_CACHE_CHECK([for obsolete Curses functions], [ax_cv_plaincurses_obsolete], [
+ AC_LINK_IFELSE([AC_LANG_PROGRAM([[
+ @%:@include <curses.h>
+ ]], [[
+ chtype a = A_BOLD;
+ int b = KEY_LEFT;
+ int g = getattrs(stdscr);
+ int h = getcurx(stdscr) + getmaxx(stdscr);
+ initscr();
+ ]])],
+ [ax_cv_plaincurses_obsolete=yes],
+ [ax_cv_plaincurses_obsolete=no])
+ ])
+ AS_IF([test "x$ax_cv_plaincurses_obsolete" = xyes], [
+ ax_cv_curses_obsolete=yes
+ AC_DEFINE([HAVE_CURSES_OBSOLETE], [1], [Define to 1 if library supports certain obsolete features])
+ ])
+ ])
+
+ AS_IF([test "x$ax_cv_header_curses_h" = xno], [
+ AC_MSG_WARN([could not find a working curses.h])
+ ])
+ ])
+ ])
+
+ AS_IF([test "x$ax_cv_curses" != xyes], [ax_cv_curses=no])
+ AS_IF([test "x$ax_cv_curses_enhanced" != xyes], [ax_cv_curses_enhanced=no])
+ AS_IF([test "x$ax_cv_curses_color" != xyes], [ax_cv_curses_color=no])
+ AS_IF([test "x$ax_cv_curses_obsolete" != xyes], [ax_cv_curses_obsolete=no])
+
+ LIBS=$ax_saved_LIBS
+])dnl
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