Add POSIX::strftime and POSIX::mktime Perl wrappers

src/main/java/org/perlonjava/backend/jvm/EmitterMethodCreator.java

@@ -1480,6 +1480,12 @@ public static RuntimeCode createRuntimeCode(
                 return compileToInterpreter(ast, ctx, useTryCatch);
             }
             throw e;
+        } catch (InterpreterFallbackException e) {
+            // InterpreterFallbackException already carries the InterpretedCode
+            if (SHOW_FALLBACK) {
+                System.err.println("Note: Using interpreter fallback (ASM frame compute crash).");
+            }
+            return e.interpretedCode;
         } catch (RuntimeException e) {
             if (USE_INTERPRETER_FALLBACK && needsInterpreterFallback(e)) {
                 if (SHOW_FALLBACK) {

src/main/java/org/perlonjava/runtime/runtimetypes/RuntimeCode.java

@@ -7,6 +7,7 @@
 import org.perlonjava.backend.bytecode.InterpreterState;
 import org.perlonjava.backend.jvm.EmitterContext;
 import org.perlonjava.backend.jvm.EmitterMethodCreator;
+import org.perlonjava.backend.jvm.InterpreterFallbackException;
 import org.perlonjava.backend.jvm.JavaClassInfo;
 import org.perlonjava.frontend.astnode.Node;
 import org.perlonjava.frontend.astnode.OperatorNode;

src/main/perl/lib/POSIX.pm

@@ -232,6 +232,8 @@ sub chdir { POSIX::_chdir(@_) }
 sub time { POSIX::_time() }
 sub sleep { POSIX::_sleep(@_) }
 sub alarm { POSIX::_alarm(@_) }
+sub strftime { POSIX::_strftime(@_) }
+sub mktime { POSIX::_mktime(@_) }
 
 # Math functions (many can use Perl builtins)
 sub abs { CORE::abs($_[0]) }