add some f2c runtime functions, remove exception, avoid name conflict with libgfortran

lib/linalg/s_lmp_copy.cpp

@@ -0,0 +1,26 @@
+
+#include "lmp_f2c.h"
+
+extern "C" {
+
+/* assign strings:  a = b */
+
+void s_lmp_copy(register char *a, register char *b, ftnlen la, ftnlen lb)
+{
+    register char *aend, *bend;
+
+    aend = a + la;
+
+    if (la <= lb)
+        while (a < aend)
+            *a++ = *b++;
+
+    else {
+        bend = b + lb;
+        while (b < bend)
+            *a++ = *b++;
+        while (a < aend)
+            *a++ = ' ';
+    }
+}
+}