Be more careful including twin headers

Not all twin headers are always present, so conditionally include
depending on whether _USE_X11 is set. Also, don't #define _USE_X11
by default.

Signed-off-by: Jeremy Kerr <jk@ozlabs.org>

diff --git a/petitboot.c b/petitboot.c
index e7eff4c91fee02730173febe09c0794e3486cf78..928bbe05e1997abcd66d790a09681c538215ea90 100644 (file)
--- a/petitboot.c
+++ b/petitboot.c
@@ -7,19 +7,23 @@
 
 #include <linux/input.h>
 
+#undef _USE_X11
+
 #include <libtwin/twin.h>
-#include <libtwin/twin_fbdev.h>
-#include <libtwin/twin_x11.h>
 #include <libtwin/twin_linux_mouse.h>
 #include <libtwin/twin_png.h>
 
 #include "petitboot.h"
 #include "petitboot-paths.h"
 
-#define _USE_X11
-
-static twin_fbdev_t *pboot_fbdev;
+#ifdef _USE_X11
+#include <libtwin/twin_x11.h>
 static twin_x11_t *pboot_x11;
+#else
+#include <libtwin/twin_fbdev.h>
+static twin_fbdev_t *pboot_fbdev;
+#endif
+
 static twin_screen_t *pboot_screen;
 
 #define PBOOT_LEFT_PANE_SIZE           200
@@ -850,9 +854,11 @@ int pboot_remove_device(const char *dev_id)
 
 static void exitfunc(void)
 {
+#ifndef _USE_X11
        if (pboot_fbdev)
                twin_fbdev_destroy(pboot_fbdev);
        pboot_fbdev = NULL;
+#endif
 }
 
 static void sigint(int sig)
@@ -885,7 +891,6 @@ int main(int argc, char **argv)
        }
        pboot_screen = pboot_fbdev->screen;
        twin_linux_mouse_create(NULL, pboot_screen);
-#endif
 
        if (pboot_fbdev != NULL) {
                char *cursor_path = artwork_pathname("cursor");
@@ -897,6 +902,7 @@ int main(int argc, char **argv)
                                twin_get_default_cursor(&pboot_cursor_hx,
                                                        &pboot_cursor_hy);
        }
+#endif
 
        /* Set background pixmap */
        background_path = artwork_pathname("background.png");
@@ -921,8 +927,10 @@ int main(int argc, char **argv)
        pboot_screen->event_filter = pboot_event_filter;
 
        /* Console switch */
+#ifndef _USE_X11
        if (pboot_fbdev)
                twin_fbdev_activate(pboot_fbdev);
+#endif
 
        /* Process events */
        twin_dispatch ();