Misc. fixes

With the siwtch to a C++ compiler, the AC_PATH_XTRA has become less
effective as it internally relies on the C compiler invokation.  Fixed
CXXFLAGS, CPPFLAGS, and LDFLAGS when detecting <X11/xpm.h> usability.

Various bitmasks in src/hyper and src/graph were bogusly using 'char'
(instead of 'unsigned char') when they specify values larger than 127.
Caught by the C++ compiler, thanks to no-narrowing conversion.  Fixed.

Eventually the X11-based HD interface and graphics should be replaced
by a more modern GUI interface.

20 files changed, 60 insertions, 50 deletions

diff --git a/Makefile.in b/Makefile.in
index 1681494f..8f845fe2 100644
--- a/Makefile.in
+++ b/Makefile.in
@@ -370,7 +370,6 @@ TOUCH = @TOUCH@
 VERSION = @VERSION@
 XMKMF = @XMKMF@
 X_CFLAGS = @X_CFLAGS@
-X_CLFAGS = @X_CLFAGS@
 X_EXTRA_LIBS = @X_EXTRA_LIBS@
 X_LIBS = @X_LIBS@
 X_PRE_LIBS = @X_PRE_LIBS@
diff --git a/config/open-axiom.m4 b/config/open-axiom.m4
index 991424c6..747319aa 100644
--- a/config/open-axiom.m4
+++ b/config/open-axiom.m4
@@ -1009,12 +1009,6 @@ dnl  4. checks for special X11R6 libraries that need to be linked before
 dnl      the flag [[-lX11]].
 AC_DEFUN([OPENAXIOM_CHECK_X11],[
 AC_PATH_XTRA
-## Output directives for the C compiler
-AC_SUBST(X_CLFAGS)
-## Output directives for the linker
-AC_SUBST(X_LIBS)
-## Output any extra libraries required by X11
-AC_SUBST(X_EXTRA_LIBS)
 
 ## Finally, output the list of libraries that need to appear before -lX11
 ## Some part of OpenAxiom depends on Xpm.  That library has kind of uncertain
@@ -1035,10 +1029,19 @@ oa_use_x=no
 if test x"$no_x" = xyes; then
     AC_MSG_NOTICE([The Graphics component is disabled.])
 else
+    oa_saved_cxxflags=$CXXFLAGS
+    oa_saved_cppflags=$CPPFLAGS
+    oa_saved_ldflags=$LDFLAGS
+    CXXFLAGS="$CXXFLAGS $X_CFLAGS"
+    CPPFLAGS="$CPPFLAGS $X_CFLAGS"
+    LDFLAGS="$X_PRE_LIBS $X_LIBS $X_EXTRA_LIBS"
     AC_CHECK_HEADERS([X11/xpm.h],[],
       [AC_MSG_ERROR([The header <X11/xpm.h> could not be found.  Install Xpm development package and re-start the configuration process.])])
     oa_use_x=yes
     oa_c_runtime="$oa_c_runtime graphics"
+    LDFLAGS=$oa_saved_ldflags
+    CPPFLAGS=$oa_saved_cppflags
+    CXXFLAGS=$oa_saved_cxxflags
 fi
 AC_SUBST(oa_use_x)
 ])
diff --git a/configure b/configure
index 1afe1529..77117458 100755
--- a/configure
+++ b/configure
@@ -1,6 +1,6 @@
 #! /bin/sh
 # Guess values for system-dependent variables and create Makefiles.
-# Generated by GNU Autoconf 2.69 for OpenAxiom 1.5.0-2016-01-16.
+# Generated by GNU Autoconf 2.69 for OpenAxiom 1.5.0-2016-01-24.
 #
 # Report bugs to <open-axiom-bugs@lists.sf.net>.
 #
@@ -590,8 +590,8 @@ MAKEFLAGS=
 # Identity of this package.
 PACKAGE_NAME='OpenAxiom'
 PACKAGE_TARNAME='openaxiom'
-PACKAGE_VERSION='1.5.0-2016-01-16'
-PACKAGE_STRING='OpenAxiom 1.5.0-2016-01-16'
+PACKAGE_VERSION='1.5.0-2016-01-24'
+PACKAGE_STRING='OpenAxiom 1.5.0-2016-01-24'
 PACKAGE_BUGREPORT='open-axiom-bugs@lists.sf.net'
 PACKAGE_URL=''
 
@@ -652,7 +652,6 @@ oa_host_has_regex
 OA_QT_QMAKE
 OA_QT_MOC
 oa_use_x
-X_CLFAGS
 X_EXTRA_LIBS
 X_LIBS
 X_PRE_LIBS
@@ -1421,7 +1420,7 @@ if test "$ac_init_help" = "long"; then
   # Omit some internal or obsolete options to make the list less imposing.
   # This message is too long to be a string in the A/UX 3.1 sh.
   cat <<_ACEOF
-\`configure' configures OpenAxiom 1.5.0-2016-01-16 to adapt to many kinds of systems.
+\`configure' configures OpenAxiom 1.5.0-2016-01-24 to adapt to many kinds of systems.
 
 Usage: $0 [OPTION]... [VAR=VALUE]...
 
@@ -1496,7 +1495,7 @@ fi
 
 if test -n "$ac_init_help"; then
   case $ac_init_help in
-     short | recursive ) echo "Configuration of OpenAxiom 1.5.0-2016-01-16:";;
+     short | recursive ) echo "Configuration of OpenAxiom 1.5.0-2016-01-24:";;
    esac
   cat <<\_ACEOF
 
@@ -1613,7 +1612,7 @@ fi
 test -n "$ac_init_help" && exit $ac_status
 if $ac_init_version; then
   cat <<\_ACEOF
-OpenAxiom configure 1.5.0-2016-01-16
+OpenAxiom configure 1.5.0-2016-01-24
 generated by GNU Autoconf 2.69
 
 Copyright (C) 2012 Free Software Foundation, Inc.
@@ -2430,7 +2429,7 @@ cat >config.log <<_ACEOF
 This file contains any messages produced by compilers while
 running configure, to aid debugging if configure makes a mistake.
 
-It was created by OpenAxiom $as_me 1.5.0-2016-01-16, which was
+It was created by OpenAxiom $as_me 1.5.0-2016-01-24, which was
 generated by GNU Autoconf 2.69.  Invocation command line was
 
   $ $0 $@
@@ -3449,7 +3448,7 @@ fi
 
 # Define the identity of the package.
  PACKAGE='openaxiom'
- VERSION='1.5.0-2016-01-16'
+ VERSION='1.5.0-2016-01-24'
 
 
 cat >>confdefs.h <<_ACEOF
@@ -18978,12 +18977,6 @@ fi
 
 fi
 
-## Output directives for the C compiler
-
-## Output directives for the linker
-
-## Output any extra libraries required by X11
-
 
 ## Finally, output the list of libraries that need to appear before -lX11
 ## Some part of OpenAxiom depends on Xpm.  That library has kind of uncertain
@@ -19005,6 +18998,12 @@ if test x"$no_x" = xyes; then
     { $as_echo "$as_me:${as_lineno-$LINENO}: The Graphics component is disabled." >&5
 $as_echo "$as_me: The Graphics component is disabled." >&6;}
 else
+    oa_saved_cxxflags=$CXXFLAGS
+    oa_saved_cppflags=$CPPFLAGS
+    oa_saved_ldflags=$LDFLAGS
+    CXXFLAGS="$CXXFLAGS $X_CFLAGS"
+    CPPFLAGS="$CPPFLAGS $X_CFLAGS"
+    LDFLAGS="$X_PRE_LIBS $X_LIBS $X_EXTRA_LIBS"
     for ac_header in X11/xpm.h
 do :
   ac_fn_cxx_check_header_mongrel "$LINENO" "X11/xpm.h" "ac_cv_header_X11_xpm_h" "$ac_includes_default"
@@ -19021,6 +19020,9 @@ done
 
     oa_use_x=yes
     oa_c_runtime="$oa_c_runtime graphics"
+    LDFLAGS=$oa_saved_ldflags
+    CPPFLAGS=$oa_saved_cppflags
+    CXXFLAGS=$oa_saved_cxxflags
 fi
 
 
@@ -20053,7 +20055,7 @@ cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
 # report actual input values of CONFIG_FILES etc. instead of their
 # values after options handling.
 ac_log="
-This file was extended by OpenAxiom $as_me 1.5.0-2016-01-16, which was
+This file was extended by OpenAxiom $as_me 1.5.0-2016-01-24, which was
 generated by GNU Autoconf 2.69.  Invocation command line was
 
   CONFIG_FILES    = $CONFIG_FILES
@@ -20123,7 +20125,7 @@ _ACEOF
 cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
 ac_cs_config="`$as_echo "$ac_configure_args" | sed 's/^ //; s/[\\""\`\$]/\\\\&/g'`"
 ac_cs_version="\\
-OpenAxiom config.status 1.5.0-2016-01-16
+OpenAxiom config.status 1.5.0-2016-01-24
 configured by $0, generated by GNU Autoconf 2.69,
   with options \\"\$ac_cs_config\\"
 
diff --git a/configure.ac b/configure.ac
index c46054ed..bf56ccd5 100644
--- a/configure.ac
+++ b/configure.ac
@@ -33,7 +33,7 @@ dnl  Makefiles for building OpenAxiom interpreter, compiler, libraries, and
 dnl  auxiliary tools where appropriate.
 dnl
 
-AC_INIT([OpenAxiom], [1.5.0-2016-01-16], 
+AC_INIT([OpenAxiom], [1.5.0-2016-01-24], 
         [open-axiom-bugs@lists.sf.net])
 
 dnl Most of the macros used in this configure.ac are defined in files
diff --git a/src/Makefile.in b/src/Makefile.in
index 44d8bf06..8598a6c9 100644
--- a/src/Makefile.in
+++ b/src/Makefile.in
@@ -302,7 +302,6 @@ TOUCH = @TOUCH@
 VERSION = @VERSION@
 XMKMF = @XMKMF@
 X_CFLAGS = @X_CFLAGS@
-X_CLFAGS = @X_CLFAGS@
 X_EXTRA_LIBS = @X_EXTRA_LIBS@
 X_LIBS = @X_LIBS@
 X_PRE_LIBS = @X_PRE_LIBS@
diff --git a/src/algebra/Makefile.in b/src/algebra/Makefile.in
index 1b0f9f54..48274f0b 100644
--- a/src/algebra/Makefile.in
+++ b/src/algebra/Makefile.in
@@ -486,7 +486,6 @@ TOUCH = @TOUCH@
 VERSION = @VERSION@
 XMKMF = @XMKMF@
 X_CFLAGS = @X_CFLAGS@
-X_CLFAGS = @X_CLFAGS@
 X_EXTRA_LIBS = @X_EXTRA_LIBS@
 X_LIBS = @X_LIBS@
 X_PRE_LIBS = @X_PRE_LIBS@
diff --git a/src/boot/Makefile.in b/src/boot/Makefile.in
index 67afa9b1..4a06e736 100644
--- a/src/boot/Makefile.in
+++ b/src/boot/Makefile.in
@@ -330,7 +330,6 @@ TOUCH = @TOUCH@
 VERSION = @VERSION@
 XMKMF = @XMKMF@
 X_CFLAGS = @X_CFLAGS@
-X_CLFAGS = @X_CLFAGS@
 X_EXTRA_LIBS = @X_EXTRA_LIBS@
 X_LIBS = @X_LIBS@
 X_PRE_LIBS = @X_PRE_LIBS@
diff --git a/src/graph/include/light11.mask b/src/graph/include/light11.mask
index 4fffa962..dc1025fd 100644
--- a/src/graph/include/light11.mask
+++ b/src/graph/include/light11.mask
@@ -2,7 +2,7 @@
 #define lightMask_height 16
 #define lightMask_x_hot 8
 #define lightMask_y_hot 0
-static char lightMask_bits[] = {
+static unsigned char lightMask_bits[] = {
    0x00, 0x01, 0x00, 0x01, 0x00, 0x01, 0x04, 0x40, 0xc8, 0x27, 0x20, 0x08,
    0x10, 0x11, 0x96, 0x12, 0x90, 0xd2, 0x90, 0x10, 0x24, 0x09, 0x42, 0x45,
    0x40, 0x85, 0x80, 0x03, 0x80, 0x02, 0x00, 0x01};
diff --git a/src/hyper/ht_icon b/src/hyper/ht_icon
index 859e0fe2..b50a3143 100644
--- a/src/hyper/ht_icon
+++ b/src/hyper/ht_icon
@@ -2,7 +2,7 @@
 #define ht_icon_height 40
 #define ht_icon_x_hot -1
 #define ht_icon_y_hot -1
-static char ht_icon_bits[] = {
+static unsigned char ht_icon_bits[] = {
    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
    0x00, 0x00, 0x00, 0xf7, 0x00, 0x00, 0x00, 0x00, 0xe7, 0x00, 0x00, 0x00,
    0x00, 0xe7, 0x00, 0x00, 0x00, 0x00, 0xe7, 0xef, 0x7b, 0x3c, 0xe7, 0xff,
diff --git a/src/hyper/hyper.h b/src/hyper/hyper.h
index c4956a5f..9f936764 100644
--- a/src/hyper/hyper.h
+++ b/src/hyper/hyper.h
@@ -1,7 +1,7 @@
 /*
   Copyright (C) 1991-2002, The Numerical Algorithms Group Ltd.
   All rights reserved.
-  Copyright (C) 2007-2010, Gabriel Dos Reis.
+  Copyright (C) 2007-2016, Gabriel Dos Reis.
   All rights reserved.
 
   Redistribution and use in source and binary forms, with or without
@@ -303,4 +303,13 @@ extern GroupItem   *gTopOfGroupStack;
 
 extern HyperDocPage *gPageBeingParsed;
 
+
+// Kludge between the more correct 'array of unsigned char' incoming data,
+// and the unprincipled 'pointer to char' parameters of several X11
+// functions below.
+template<int N>
+inline const char* as_chars(const unsigned char (&ary)[N]) {
+   return reinterpret_cast<const char*>(&ary[0]);
+}
+
 #endif
diff --git a/src/hyper/initx.c b/src/hyper/initx.c
index 521bc8cb..5b8dee53 100644
--- a/src/hyper/initx.c
+++ b/src/hyper/initx.c
@@ -1,7 +1,7 @@
 /*
   Copyright (C) 1991-2002, The Numerical Algorithms Group Ltd.
   All rights reserved.
-  Copyright (C) 2007-2012, Gabriel Dos Reis.
+  Copyright (C) 2007-2016, Gabriel Dos Reis.
   All rights reserved.
 
   Redistribution and use in source and binary forms, with or without
@@ -86,6 +86,7 @@ static void open_window(Window w);
 static void set_name_and_icon(void);
 static void set_size_hints(Window w);
 
+
 static GContext server_font;
 unsigned long *spadColors;
 int scrn;  /* used in spad_colors */
@@ -176,11 +177,11 @@ initializeWindowSystem(void)
 /*  fprintf(stderr,"initx:initializeWindowSystem:XCreateBitmapFromData 1\n");*/
     mousebits = XCreateBitmapFromData(gXDisplay,
         RootWindow(gXDisplay, gXScreenNumber),
-        mouseBitmap_bits, mouseBitmap_width,mouseBitmap_height);
+        as_chars(mouseBitmap_bits), mouseBitmap_width,mouseBitmap_height);
 /* fprintf(stderr,"initx:initializeWindowSystem:XCreateBitmapFromData 2\n");*/
     mousemask = XCreateBitmapFromData(gXDisplay,
         RootWindow(gXDisplay, gXScreenNumber),
-        mouseMask_bits, mouseMask_width,mouseMask_height);
+        as_chars(mouseMask_bits), mouseMask_width,mouseMask_height);
 /* fprintf(stderr,"initx:initializeWindowSystem:XCreateBitmapFromData 2\n");*/
     gActiveCursor = XCreatePixmapCursor(gXDisplay,
         mousebits, mousemask, &fg, &bg,
@@ -396,7 +397,8 @@ set_name_and_icon(void)
     XStoreName(gXDisplay, gWindow->fMainWindow, "HyperDoc");
 
     /* define and assign the pixmap for the icon */
-    icon_pixmap = XCreateBitmapFromData(gXDisplay, gWindow->fMainWindow, ht_icon_bits,
+    icon_pixmap = XCreateBitmapFromData(gXDisplay, gWindow->fMainWindow,
+                                        as_chars(ht_icon_bits),
                                         ht_icon_width, ht_icon_height);
     wmhints.icon_pixmap = icon_pixmap;
     wmhints.flags = IconPixmapHint;
@@ -592,7 +594,7 @@ set_size_hints(Window w)
 
 #define stipple_width 4
 #define stipple_height 4
-static char stipple_bits[] = {
+static unsigned char stipple_bits[] = {
                               0xff, 0xff, 0xff, 0xff};
 Pixmap stipple;
 
@@ -615,7 +617,7 @@ get_GCs(HDWindow *window)
 
     stipple = XCreateBitmapFromData(gXDisplay,
         RootWindow(gXDisplay, gXScreenNumber),
-        stipple_bits, stipple_width, stipple_height);
+        as_chars(stipple_bits), stipple_width, stipple_height);
 
     values.background = gInputBackgroundColor;
     values.foreground = gInputForegroundColor;
diff --git a/src/hyper/mouse11.bitmap b/src/hyper/mouse11.bitmap
index 231c6630..7ed282f2 100644
--- a/src/hyper/mouse11.bitmap
+++ b/src/hyper/mouse11.bitmap
@@ -2,7 +2,7 @@
 #define mouseBitmap_height 16
 #define mouseBitmap_x_hot 8
 #define mouseBitmap_y_hot 0
-static char mouseBitmap_bits[] = {
+static unsigned char mouseBitmap_bits[] = {
    0x00, 0x01, 0x00, 0x01, 0x80, 0x02, 0x40, 0x04, 0xc0, 0x06, 0x20, 0x08,
    0x20, 0x08, 0x30, 0x18, 0x50, 0x14, 0x58, 0x34, 0x90, 0x12, 0x20, 0x08,
    0xc0, 0x47, 0x00, 0x21, 0x80, 0x10, 0x00, 0x0f};
diff --git a/src/hyper/mouse11.mask b/src/hyper/mouse11.mask
index 6e5621f4..e458acd7 100644
--- a/src/hyper/mouse11.mask
+++ b/src/hyper/mouse11.mask
@@ -1,6 +1,6 @@
 #define mouseMask_width 16
 #define mouseMask_height 16
-static char mouseMask_bits[] = {
+static unsigned char mouseMask_bits[] = {
    0x00, 0x01, 0x00, 0x01, 0x80, 0x03, 0xc0, 0x07, 0xc0, 0x07, 0xe0, 0x0f,
    0xe0, 0x0f, 0xf0, 0x1f, 0xf0, 0x1f, 0xf8, 0x3f, 0xf0, 0x1f, 0xe0, 0x0f,
    0xc0, 0x47, 0x00, 0x21, 0x80, 0x10, 0x00, 0x0f};
diff --git a/src/hyper/scrollbar.c b/src/hyper/scrollbar.c
index bc858325..1bcc47bf 100644
--- a/src/hyper/scrollbar.c
+++ b/src/hyper/scrollbar.c
@@ -1,7 +1,7 @@
 /*
   Copyright (C) 1991-2002, The Numerical Algorithms Group Ltd.
   All rights reserved.
-  Copyright (C) 2007-2010, Gabriel Dos Reis.
+  Copyright (C) 2007-2016, Gabriel Dos Reis.
   All rights reserved.
 
   Redistribution and use in source and binary forms, with or without
@@ -183,7 +183,7 @@ makeScrollBarWindows(void)
         sup = XCreatePixmapFromBitmapData(
                                           gXDisplay,
                                     RootWindow(gXDisplay, gXScreenNumber),
-                                          sup_bits, supwidth, supheight,
+                                          const_cast<char*>(as_chars(sup_bits)), supwidth, supheight,
                                           FORECOLOR, BACKCOLOR,
                                  DefaultDepth(gXDisplay, gXScreenNumber));
 
@@ -191,7 +191,7 @@ makeScrollBarWindows(void)
         sdown = XCreatePixmapFromBitmapData(
                                             gXDisplay,
                                     RootWindow(gXDisplay, gXScreenNumber),
-                                      sdown_bits, sdown_width, sdown_height,
+                                    const_cast<char*>(as_chars(sdown_bits)), sdown_width, sdown_height,
                                             FORECOLOR, BACKCOLOR,
                                  DefaultDepth(gXDisplay, gXScreenNumber));
 
@@ -199,13 +199,13 @@ makeScrollBarWindows(void)
         sup_pressed = XCreatePixmapFromBitmapData(
                                                   gXDisplay,
                                     RootWindow(gXDisplay, gXScreenNumber),
-                                sup3dpr_bits, sup3dpr_width, sup3dpr_height,
+                                                  const_cast<char*>(as_chars(sup3dpr_bits)), sup3dpr_width, sup3dpr_height,
                                                   FORECOLOR, BACKCOLOR,
                                  DefaultDepth(gXDisplay, gXScreenNumber));
         sdown_pressed = XCreatePixmapFromBitmapData(
                                                     gXDisplay,
                                     RootWindow(gXDisplay, gXScreenNumber),
-                          sdown3dpr_bits, sdown3dpr_width, sdown3dpr_height,
+                                    const_cast<char*>(as_chars(sdown3dpr_bits)), sdown3dpr_width, sdown3dpr_height,
                                                     FORECOLOR, BACKCOLOR,
                                  DefaultDepth(gXDisplay, gXScreenNumber));
     }
diff --git a/src/hyper/sdown3d.bitmap b/src/hyper/sdown3d.bitmap
index e34dc105..ccdf726b 100644
--- a/src/hyper/sdown3d.bitmap
+++ b/src/hyper/sdown3d.bitmap
@@ -1,6 +1,6 @@
 #define sdown3d_width 21
 #define sdown3d_height 21
-static char sdown3d_bits[] = {
+static unsigned char sdown3d_bits[] = {
    0xaa, 0xaa, 0x0a, 0x55, 0x55, 0x15, 0x02, 0x00, 0x0c, 0x51, 0x55, 0x15,
    0xaa, 0xaa, 0x0e, 0x51, 0x5f, 0x15, 0xaa, 0xae, 0x0e, 0x51, 0x5f, 0x15,
    0xaa, 0xae, 0x0e, 0x51, 0x5f, 0x15, 0xea, 0xff, 0x0e, 0xd1, 0x7f, 0x15,
diff --git a/src/hyper/sdown3dpr.bitmap b/src/hyper/sdown3dpr.bitmap
index 6ce090b1..54c693a6 100644
--- a/src/hyper/sdown3dpr.bitmap
+++ b/src/hyper/sdown3dpr.bitmap
@@ -1,6 +1,6 @@
 #define sdown3dpr_width 21
 #define sdown3dpr_height 21
-static char sdown3dpr_bits[] = {
+static unsigned char sdown3dpr_bits[] = {
    0xaa, 0xaa, 0x0a, 0x55, 0x55, 0x15, 0xfe, 0xff, 0x0f, 0x55, 0x55, 0x11,
    0xae, 0xaa, 0x0a, 0x55, 0x55, 0x11, 0xae, 0xbe, 0x0a, 0x55, 0x5d, 0x11,
    0xae, 0xbe, 0x0a, 0x55, 0x5d, 0x11, 0xae, 0xbe, 0x0a, 0xd5, 0xff, 0x11,
diff --git a/src/hyper/sup3d.bitmap b/src/hyper/sup3d.bitmap
index c1dd285b..f5197b5a 100644
--- a/src/hyper/sup3d.bitmap
+++ b/src/hyper/sup3d.bitmap
@@ -1,6 +1,6 @@
 #define sup3d_width 21
 #define sup3d_height 21
-static char sup3d_bits[] = {
+static unsigned char sup3d_bits[] = {
    0xaa, 0xaa, 0x0a, 0x55, 0x55, 0x15, 0x02, 0x00, 0x0c, 0x51, 0x55, 0x15,
    0xaa, 0xaa, 0x0e, 0x51, 0x55, 0x15, 0xaa, 0xae, 0x0e, 0x51, 0x5f, 0x15,
    0xaa, 0xbf, 0x0e, 0xd1, 0x7f, 0x15, 0xea, 0xff, 0x0e, 0x51, 0x5f, 0x15,
diff --git a/src/hyper/sup3dpr.bitmap b/src/hyper/sup3dpr.bitmap
index 2617792f..e2e7109a 100644
--- a/src/hyper/sup3dpr.bitmap
+++ b/src/hyper/sup3dpr.bitmap
@@ -1,6 +1,6 @@
 #define sup3dpr_width 21
 #define sup3dpr_height 21
-static char sup3dpr_bits[] = {
+static unsigned char sup3dpr_bits[] = {
    0xaa, 0xaa, 0x0a, 0x55, 0x55, 0x15, 0xfe, 0xff, 0x0f, 0x55, 0x55, 0x11,
    0xae, 0xaa, 0x0a, 0x55, 0x55, 0x11, 0xae, 0xaa, 0x0a, 0x55, 0x5d, 0x11,
    0xae, 0xbe, 0x0a, 0x55, 0x7f, 0x11, 0xae, 0xff, 0x0a, 0xd5, 0xff, 0x11,
diff --git a/src/rt/Makefile.in b/src/rt/Makefile.in
index b5b6e154..712b3094 100644
--- a/src/rt/Makefile.in
+++ b/src/rt/Makefile.in
@@ -292,7 +292,6 @@ TOUCH = @TOUCH@
 VERSION = @VERSION@
 XMKMF = @XMKMF@
 X_CFLAGS = @X_CFLAGS@
-X_CLFAGS = @X_CLFAGS@
 X_EXTRA_LIBS = @X_EXTRA_LIBS@
 X_LIBS = @X_LIBS@
 X_PRE_LIBS = @X_PRE_LIBS@
diff --git a/src/utils/Makefile.in b/src/utils/Makefile.in
index cde398ed..7450de6c 100644
--- a/src/utils/Makefile.in
+++ b/src/utils/Makefile.in
@@ -307,7 +307,6 @@ TOUCH = @TOUCH@
 VERSION = @VERSION@
 XMKMF = @XMKMF@
 X_CFLAGS = @X_CFLAGS@
-X_CLFAGS = @X_CLFAGS@
 X_EXTRA_LIBS = @X_EXTRA_LIBS@
 X_LIBS = @X_LIBS@
 X_PRE_LIBS = @X_PRE_LIBS@