[PATCH] x86: fix perf build with uclibc toolchains

[Florian Fainelli]

libio.h is not provided by uClibc, in order to be able to test the
definition of __UCLIBC__ we need to include stdlib.h, which also
includes stddef.h, providing the definition of 'NULL'

Signed-off-by: Florian Fainelli <florian@xxxxxxxxxxx>
---
 tools/perf/arch/x86/util/dwarf-regs.c |    3 +++
 1 file changed, 3 insertions(+)

diff --git a/tools/perf/arch/x86/util/dwarf-regs.c b/tools/perf/arch/x86/util/dwarf-regs.c
index a794d30..6f5267f 100644
--- a/tools/perf/arch/x86/util/dwarf-regs.c
+++ b/tools/perf/arch/x86/util/dwarf-regs.c
@@ -20,7 +20,10 @@
  *
  */
 
+#include <stdlib.h>
+#ifndef __UCLIBC__
 #include <libio.h>
+#endif
 #include <dwarf-regs.h>
 
 /*
-- 
1.7.10.4

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