Avoid Gnulib std-gnu11 module.

[rrace.git] / configure.ac

diff --git a/configure.ac b/configure.ac
index 755d911fba6d30315bb4b73a2af2a611173769fe..9b39749c2c0001a2c45d1a721378caaa3090055d 100644 (file)
--- a/configure.ac
+++ b/configure.ac
@@ -29,6 +29,21 @@ m4_traceoff([AM_GNU_GETTEXT])
 AM_GNU_GETTEXT([external])
 AH_BOTTOM([#include <conf_post.h>])
 
+# Checks for curses
+AC_ARG_WITH([curses], [AS_HELP_STRING([--with-curses],
+  [use curses for playing in text mode (default: auto)])],
+  [], [with_curses=auto])
+AS_IF([test x"$with_curses" != x"no"],
+  [DX_LIB_CURSES([have_curses=yes], [have_curses=no])])
+AS_IF([test x"$with_curses" = x"yes" && x"$have_curses" != x"yes"],
+  [AC_MSG_FAILURE([--with-curses requested but curses was not found])])
+AM_CONDITIONAL([HAVE_CURSES], [test x"$have_curses" = x"yes"])
+
+AM_COND_IF([HAVE_CURSES],
+[DX_CHECK_CURSES_FUNC([wresize], [0,0,0])
+DX_CHECK_CURSES_MOUSE_SUPPORT])
+
+# Checks for X11
 AC_PATH_XTRA
 AS_IF([test x"$no_x" != x"yes"],
 [AC_CACHE_CHECK([for Motif], [dx_cv_have_motif],
@@ -47,13 +62,37 @@ AS_IF([test x"$with_x" = x"yes" && test "$dx_cv_have_motif" != x"yes"],
 
 AC_SUBST([MOTIF_CFLAGS], [@&t@])
 AC_SUBST([MOTIF_LIBS], [@&t@])
-AS_IF([test x"$dx_cv_have_motif" = x"yes"],
+AM_CONDITIONAL([HAVE_MOTIF],
+  [test x"$with_x" != x"no" && test x"$dx_cv_have_motif" = x"yes"])
+AM_COND_IF([HAVE_MOTIF],
   [MOTIF_CFLAGS=$dx_cv_motif_cflags MOTIF_LIBS=$dx_cv_motif_libs],
   [AC_DEFINE([X_DISPLAY_MISSING])])
-AM_CONDITIONAL([HAVE_MOTIF], [test x"$dx_cv_have_motif" = x"yes"])
 AH_TEMPLATE([X11_RENDER_DEBUG],
   [Define to 1 to enable visual aids for debugging X11 rendering.])
 
+# Check for XmPIXMAP_AND_STRING.
+#
+# Just checking for the existence of this identifier is sufficient, to ensure
+# that the C compiler accepts the name.  If it turns out to not actually be
+# supported by the library used at runtime, Motif itself will catch this
+# and set to the default (i.e., XmSTRING).
+AM_COND_IF([HAVE_MOTIF],
+[AC_CACHE_CHECK([whether Motif supports XmPIXMAP_AND_STRING],
+[dx_cv_motif_have_pixmap_and_string],
+[save_CFLAGS=$CFLAGS save_LIBS=$LIBS
+CFLAGS="$MOTIF_CFLAGS $CFLAGS" LIBS="$MOTIF_LIBS $LIBS"
+AC_COMPUTE_INT([dx_tmp],
+  [XmPIXMAP != XmPIXMAP_AND_STRING && XmSTRING != XmPIXMAP_AND_STRING],
+  [#include <Xm/Label.h>], [dx_tmp=0])
+AS_IF([test x"$dx_tmp" = x"1"],
+  [dx_cv_motif_have_pixmap_and_string=yes],
+  [dx_cv_motif_have_pixmap_and_string=no])
+CFLAGS=$save_CFLAGS LIBS=$save_LIBS])
+AS_IF([test x"$dx_cv_motif_have_pixmap_and_string" = x"yes"],
+  [AC_DEFINE([HAVE_MOTIF_PIXMAP_AND_STRING], [1],
+    [Define to 1 if Motif supports XmPIXMAP_AND_STRING])])
+])
+
 AC_CONFIG_TESTDIR([.], [t:.])
 DX_PROG_AUTOTEST
 AM_CONDITIONAL([HAVE_AUTOTEST], [test x"$dx_cv_autotest_works" = x"yes"])
@@ -110,3 +149,10 @@ AC_CHECK_PROGS([OPTIPNG], [optipng])
 
 AC_CONFIG_FILES([Makefile])
 AC_OUTPUT
+
+have_ui=false
+AM_COND_IF([HAVE_CURSES], [have_ui=:])
+AM_COND_IF([HAVE_MOTIF], [have_ui=:])
+AS_IF([$have_ui], [],
+[AC_MSG_WARN([No user interface is enabled.])
+AC_MSG_WARN([It will not be possible to play the game.])])