1 files changed, 3 insertions, 7 deletions
diff --git a/contrib/libf2c/libF77/r_atan.c b/contrib/libf2c/libF77/r_atan.c
index 36479c9..33a6589 100644
--- a/contrib/libf2c/libF77/r_atan.c
+++ b/contrib/libf2c/libF77/r_atan.c
@@ -1,13 +1,9 @@
 #include "f2c.h"
 
-#ifdef KR_headers
-double atan();
-double r_atan(x) real *x;
-#else
 #undef abs
 #include <math.h>
-double r_atan(real *x)
-#endif
+double
+r_atan (real * x)
 {
-return( atan(*x) );
+  return (atan (*x));
 }