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-rw-r--r--libf2c/libF77/r_acos.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/libf2c/libF77/r_acos.c b/libf2c/libF77/r_acos.c
index 330f88a3092..328812ab6aa 100644
--- a/libf2c/libF77/r_acos.c
+++ b/libf2c/libF77/r_acos.c
@@ -5,7 +5,7 @@ double acos();
double r_acos(x) real *x;
#else
#undef abs
-#include <math.h>
+#include "math.h"
double r_acos(real *x)
#endif
{