[glib] Check availability of linux/magic.h



commit 37858f7f5ef842c606f99e4808a591c4773550c0
Author: Martin Nordholts <martinn src gnome org>
Date:   Tue Mar 8 07:36:15 2011 +0100

    Check availability of linux/magic.h
    
    Check availability of linux/magic.h. It isn't available in Linux
    versions before 2.6.19.

 configure.ac      |    1 +
 glib/gfileutils.c |    2 +-
 2 files changed, 2 insertions(+), 1 deletions(-)
---
diff --git a/configure.ac b/configure.ac
index adc2da8..1fafc76 100644
--- a/configure.ac
+++ b/configure.ac
@@ -903,6 +903,7 @@ AC_CHECK_HEADERS([sys/select.h sys/types.h stdint.h inttypes.h sched.h malloc.h]
 AC_CHECK_HEADERS([sys/vfs.h sys/mount.h sys/vmount.h sys/statfs.h sys/statvfs.h])
 AC_CHECK_HEADERS([mntent.h sys/mnttab.h sys/vfstab.h sys/mntctl.h sys/sysctl.h fstab.h])
 AC_CHECK_HEADERS([sys/uio.h sys/mkdev.h])
+AC_CHECK_HEADERS([linux/magic.h])
 
 # check for structure fields
 AC_CHECK_MEMBERS([struct stat.st_mtimensec, struct stat.st_mtim.tv_nsec, struct stat.st_atimensec, struct stat.st_atim.tv_nsec, struct stat.st_ctimensec, struct stat.st_ctim.tv_nsec])
diff --git a/glib/gfileutils.c b/glib/gfileutils.c
index a87f0e9..da6cacd 100644
--- a/glib/gfileutils.c
+++ b/glib/gfileutils.c
@@ -53,7 +53,7 @@
 #include "gstdio.h"
 #include "glibintl.h"
 
-#ifdef __linux__ /* for btrfs check */
+#ifdef HAVE_LINUX_MAGIC_H /* for btrfs check */
 #include <linux/magic.h>
 #include <sys/vfs.h>
 #endif



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