From 83c2013dfbe4c0a3f15be6b8cbd255787d774de0 Mon Sep 17 00:00:00 2001
From: Bob Nystrom <robert@stuffwithstuff.com>
Date: Wed, 26 Nov 2014 14:03:05 -0800
Subject: [PATCH] Fixes to make GCC happier.

---
 Makefile            | 4 ++--
 src/main.c          | 6 ++++++
 src/wren_compiler.c | 3 +++
 src/wren_value.c    | 2 +-
 src/wren_value.h    | 2 +-
 5 files changed, 13 insertions(+), 4 deletions(-)

diff --git a/Makefile b/Makefile
index 692da17f..3f910c43 100644
--- a/Makefile
+++ b/Makefile
@@ -27,7 +27,7 @@ debug: prep wrend
 
 # Debug command-line interpreter.
 wrend: $(DEBUG_OBJECTS)
-	$(CC) $(CFLAGS) $(DEBUG_CFLAGS) -Iinclude -o wrend $^
+	$(CC) $(CFLAGS) $(DEBUG_CFLAGS) -Iinclude -lm -o wrend $^
 
 # Debug object files.
 build/debug/%.o: src/%.c include/wren.h $(HEADERS)
@@ -38,7 +38,7 @@ release: prep wren
 
 # Release command-line interpreter.
 wren: $(RELEASE_OBJECTS)
-	$(CC) $(CFLAGS) $(RELEASE_CFLAGS) -Iinclude -o wren $^
+	$(CC) $(CFLAGS) $(RELEASE_CFLAGS) -Iinclude -lm -o wren $^
 
 # Release object files.
 build/release/%.o: src/%.c include/wren.h $(HEADERS)
diff --git a/src/main.c b/src/main.c
index 55f3b1fc..8be07ba1 100644
--- a/src/main.c
+++ b/src/main.c
@@ -1,3 +1,5 @@
+#define _GNU_SOURCE // Makes getline() available in GCC.
+
 #include <stdarg.h>
 #include <stdbool.h>
 #include <stdio.h>
@@ -56,6 +58,10 @@ static int runFile(WrenVM* vm, const char* path)
     case WREN_RESULT_SUCCESS: result = 0; break;
     case WREN_RESULT_COMPILE_ERROR: result = 65; break; // EX_DATAERR.
     case WREN_RESULT_RUNTIME_ERROR: result = 70; break; // EX_SOFTWARE.
+    default:
+      // Unreachable.
+      result = 255;
+      break;
   }
 
   wrenFreeVM(vm);
diff --git a/src/wren_compiler.c b/src/wren_compiler.c
index 3c05aed2..2be8055a 100644
--- a/src/wren_compiler.c
+++ b/src/wren_compiler.c
@@ -2248,6 +2248,9 @@ static int getNumArguments(const uint8_t* bytecode, const Value* constants,
       // There are two bytes for the constant, then two for each upvalue.
       return 2 + (loadedFn->numUpvalues * 2);
     }
+
+    default:
+      UNREACHABLE();
   }
 }
 
diff --git a/src/wren_value.c b/src/wren_value.c
index b7c6f034..9d262bb2 100644
--- a/src/wren_value.c
+++ b/src/wren_value.c
@@ -159,7 +159,7 @@ ObjFiber* wrenNewFiber(WrenVM* vm, Obj* fn)
 
 ObjFn* wrenNewFunction(WrenVM* vm, Value* constants, int numConstants,
                        int numUpvalues, int numParams,
-                       u_int8_t* bytecode, int bytecodeLength,
+                       uint8_t* bytecode, int bytecodeLength,
                        ObjString* debugSourcePath,
                        const char* debugName, int debugNameLength,
                        int* sourceLines)
diff --git a/src/wren_value.h b/src/wren_value.h
index 8ccfb12c..ba0ce655 100644
--- a/src/wren_value.h
+++ b/src/wren_value.h
@@ -564,7 +564,7 @@ ObjFiber* wrenNewFiber(WrenVM* vm, Obj* fn);
 // copy [constants] into its own array.
 ObjFn* wrenNewFunction(WrenVM* vm, Value* constants, int numConstants,
                        int numUpvalues, int numParams,
-                       u_int8_t* bytecode, int bytecodeLength,
+                       uint8_t* bytecode, int bytecodeLength,
                        ObjString* debugSourcePath,
                        const char* debugName, int debugNameLength,
                        int* sourceLines);