From a159f627cb81f3179aac0fee477e172f2e9520c5 Mon Sep 17 00:00:00 2001
From: Tom Hughes <tom@compton.nu>
Date: Thu, 22 Apr 2004 07:28:43 +0000
Subject: [PATCH] Make support for the FBIOGET ioctls conditional on linux/fb.h
 being present at compile time.

git-svn-id: svn://svn.valgrind.org/valgrind/trunk@2382
---
 configure.in            | 2 +-
 coregrind/vg_syscalls.c | 4 ++++
 coregrind/vg_unsafe.h   | 2 ++
 3 files changed, 7 insertions(+), 1 deletion(-)

diff --git a/configure.in b/configure.in
index 8842f8a2b..9df9883e1 100644
--- a/configure.in
+++ b/configure.in
@@ -331,7 +331,7 @@ AC_SUBST(PREFERRED_STACK_BOUNDARY)
 
 # Checks for header files.
 AC_HEADER_STDC
-AC_CHECK_HEADERS([fcntl.h stdlib.h string.h sys/socket.h sys/statfs.h sys/time.h sys/endian.h endian.h termios.h unistd.h utime.h])
+AC_CHECK_HEADERS([fcntl.h stdlib.h string.h sys/socket.h sys/statfs.h sys/time.h sys/endian.h endian.h termios.h unistd.h utime.h linux/fb.h])
 
 # Checks for typedefs, structures, and compiler characteristics.
 AC_TYPE_UID_T
diff --git a/coregrind/vg_syscalls.c b/coregrind/vg_syscalls.c
index 31f5d4916..d0ffca7ac 100644
--- a/coregrind/vg_syscalls.c
+++ b/coregrind/vg_syscalls.c
@@ -3231,6 +3231,7 @@ PRE(ioctl)
    case CDROM_CLEAR_OPTIONS: /* 0x5321 */
       break;
       
+#ifdef HAVE_LINUX_FB_H
    case FBIOGET_VSCREENINFO: /* 0x4600 */
       SYSCALL_TRACK( pre_mem_write,tid,
                      "ioctl(FBIOGET_VSCREENINFO)", arg3,
@@ -3241,6 +3242,7 @@ PRE(ioctl)
                      "ioctl(FBIOGET_FSCREENINFO)", arg3,
                      sizeof(struct fb_fix_screeninfo));
       break;
+#endif
 
       /* We don't have any specific information on it, so
 	 try to do something reasonable based on direction and
@@ -3595,6 +3597,7 @@ POST(ioctl)
    case CDROM_CLEAR_OPTIONS: /* 0x5321 */
       break;
 
+#ifdef HAVE_LINUX_FB_H
    case FBIOGET_VSCREENINFO: //0x4600
       if (res == 0)
          VG_TRACK( post_mem_write,arg3, sizeof(struct fb_var_screeninfo));
@@ -3603,6 +3606,7 @@ POST(ioctl)
       if (res == 0)
          VG_TRACK( post_mem_write,arg3, sizeof(struct fb_fix_screeninfo));
       break;
+#endif
 
       /* We don't have any specific information on it, so
 	 try to do something reasonable based on direction and
diff --git a/coregrind/vg_unsafe.h b/coregrind/vg_unsafe.h
index 2e86f252b..cfeac81f4 100644
--- a/coregrind/vg_unsafe.h
+++ b/coregrind/vg_unsafe.h
@@ -63,7 +63,9 @@
 #include <linux/cdrom.h>  /* for cd-rom ioctls */
 #include <signal.h>       /* for siginfo_t */
 #include <linux/timex.h>  /* for adjtimex */
+#ifdef HAVE_LINUX_FB_H
 #include <linux/fb.h>     /* for fb_* structs */
+#endif
 
 #define __USE_LARGEFILE64
 #include <sys/stat.h>     /* for struct stat */