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-rw-r--r--TOOLS/cpuinfo.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/TOOLS/cpuinfo.c b/TOOLS/cpuinfo.c
index b984bd6376..1bdf2f30e2 100644
--- a/TOOLS/cpuinfo.c
+++ b/TOOLS/cpuinfo.c
@@ -1,3 +1,6 @@
+/* small utility to extract CPU information
+ Used by configure to set CPU optimization levels on some operating
+ systems where /proc/cpuinfo is non-existent or unreliable. */
#include <stdio.h>
#include <sys/time.h>