1 files changed, 15 insertions, 0 deletions

diff --git a/lib/libF77/r_lg10.c b/lib/libF77/r_lg10.c
new file mode 100644
index 000000000000..4ea02f451003
--- /dev/null
+++ b/lib/libF77/r_lg10.c
@@ -0,0 +1,15 @@
+#include "f2c.h"
+
+#define log10e 0.43429448190325182765
+
+#ifdef KR_headers
+double log();
+double r_lg10(x) real *x;
+#else
+#undef abs
+#include "math.h"
+double r_lg10(real *x)
+#endif
+{
+return( log10e * log(*x) );
+}