1 files changed, 26 insertions, 0 deletions

diff --git a/lib/libF77/i_indx.c b/lib/libF77/i_indx.c
new file mode 100644
index 000000000000..96e7bc51ba85
--- /dev/null
+++ b/lib/libF77/i_indx.c
@@ -0,0 +1,26 @@
+#include "f2c.h"
+
+#ifdef KR_headers
+integer i_indx(a, b, la, lb) char *a, *b; ftnlen la, lb;
+#else
+integer i_indx(char *a, char *b, ftnlen la, ftnlen lb)
+#endif
+{
+ftnlen i, n;
+char *s, *t, *bend;
+
+n = la - lb + 1;
+bend = b + lb;
+
+for(i = 0 ; i < n ; ++i)
+	{
+	s = a + i;
+	t = b;
+	while(t < bend)
+		if(*s++ != *t++)
+			goto no;
+	return(i+1);
+	no: ;
+	}
+return(0);
+}