diff --git a/repl/lib_compound.c b/repl/lib_compound.c
index 895bcba..b65e594 100644
--- a/repl/lib_compound.c
+++ b/repl/lib_compound.c
@@ -629,6 +629,53 @@ static int nativeGetValues(Toy_Interpreter* interpreter, Toy_LiteralArray* argum
 	return 1;
 }
 
+static int nativeIndexOf(Toy_Interpreter* interpreter, Toy_LiteralArray* arguments) {
+	//no arguments
+	if (arguments->count != 2) {
+		interpreter->errorOutput("Incorrect number of arguments to _indexOf\n");
+		return -1;
+	}
+
+	//get the args
+	Toy_Literal valueLiteral = Toy_popLiteralArray(arguments);
+	Toy_Literal selfLiteral = Toy_popLiteralArray(arguments);
+
+	//parse to value if needed
+	Toy_Literal selfLiteralIdn = selfLiteral;
+	if (TOY_IS_IDENTIFIER(selfLiteral) && Toy_parseIdentifierToValue(interpreter, &selfLiteral)) {
+		Toy_freeLiteral(selfLiteralIdn);
+	}
+
+	Toy_Literal valueLiteralIdn = valueLiteral;
+	if (TOY_IS_IDENTIFIER(valueLiteral) && Toy_parseIdentifierToValue(interpreter, &valueLiteral)) {
+		Toy_freeLiteral(valueLiteralIdn);
+	}
+
+	//check type
+	if (!TOY_IS_ARRAY(selfLiteral)) {
+		interpreter->errorOutput("Incorrect argument type passed to indexOf\n");
+		Toy_freeLiteral(selfLiteral);
+		Toy_freeLiteral(valueLiteral);
+		return -1;
+	}
+
+	//search the array for the matching literal
+	Toy_Literal resultLiteral = TOY_TO_NULL_LITERAL;
+	for (int i = 0; i < TOY_AS_ARRAY(selfLiteral)->count; i++) {
+		if (Toy_literalsAreEqual(valueLiteral, TOY_AS_ARRAY(selfLiteral)->literals[i])) {
+			resultLiteral = TOY_TO_INTEGER_LITERAL(i);
+			break;
+		}
+	}
+
+	//return the result and clean up
+	Toy_pushLiteralArray(&interpreter->stack, resultLiteral);
+	Toy_freeLiteral(resultLiteral);
+	Toy_freeLiteral(selfLiteral);
+
+	return 1;
+}
+
 static int nativeMap(Toy_Interpreter* interpreter, Toy_LiteralArray* arguments) {
 	//no arguments
 	if (arguments->count != 2) {
@@ -1400,7 +1447,7 @@ int Toy_hookCompound(Toy_Interpreter* interpreter, Toy_Literal identifier, Toy_L
 		{"_forEach", nativeForEach}, //array, dictionary
 		{"_getKeys", nativeGetKeys}, //dictionary
 		{"_getValues", nativeGetValues}, //dictionary
-		// {"_indexOf", native}, //array, string
+		{"_indexOf", nativeIndexOf}, //array
 		// {"_insert", native}, //array, dictionary, string
 		{"_map", nativeMap}, //array, dictionary
 		{"_reduce", nativeReduce}, //array, dictionary
diff --git a/source/toy_common.h b/source/toy_common.h
index 3b1b415..c0c671a 100644
--- a/source/toy_common.h
+++ b/source/toy_common.h
@@ -10,7 +10,7 @@
 #define TOY_VERSION_BUILD __DATE__ " " __TIME__
 
 //platform/compiler-specific instructions
-#if defined(__linux__)
+#if defined(__linux__) || defined(__MINGW32__) || defined(__GNUC__)
 
 #define TOY_API extern
 
@@ -22,10 +22,6 @@
 #define TOY_API __declspec(dllexport)
 #endif
 
-#elif defined(__MINGW32__)
-
-#define TOY_API extern
-
 #else
 
 #define TOY_API extern
diff --git a/source/toy_console_colors.h b/source/toy_console_colors.h
index 9671002..c1428f7 100644
--- a/source/toy_console_colors.h
+++ b/source/toy_console_colors.h
@@ -3,7 +3,7 @@
 //NOTE: you need both font AND background for these to work
 
 //platform/compiler-specific instructions
-#if defined(__linux__) || defined(__MINGW32__)
+#if defined(__linux__) || defined(__MINGW32__) || defined(__GNUC__)
 
 //fonts color
 #define TOY_CC_FONT_BLACK      "\033[30;"
diff --git a/test/scripts/lib/compound.toy b/test/scripts/lib/compound.toy
index 3ea3bcf..d0d9256 100644
--- a/test/scripts/lib/compound.toy
+++ b/test/scripts/lib/compound.toy
@@ -155,6 +155,15 @@ import compound;
 }
 
 
+//test indexOf
+{
+	var a = [1, 2, 42, 3];
+
+	//results are zero-indexed
+	assert a.indexOf(42) == 2, "_indexOf failed";
+}
+
+
 //test map
 {
 	//test map with toy functions