1 files changed, 12 insertions, 0 deletions

diff --git a/lib/libF77/d_abs.c b/lib/libF77/d_abs.c
new file mode 100644
index 000000000000..cb157e067b73
--- /dev/null
+++ b/lib/libF77/d_abs.c
@@ -0,0 +1,12 @@
+#include "f2c.h"
+
+#ifdef KR_headers
+double d_abs(x) doublereal *x;
+#else
+double d_abs(doublereal *x)
+#endif
+{
+if(*x >= 0)
+	return(*x);
+return(- *x);
+}