diff --git a/build_file.cpp b/build_file.cpp
index 8743660..466e189 100644
--- a/build_file.cpp
+++ b/build_file.cpp
@@ -58,9 +58,9 @@ int main(int argc, char **argv) {
             Array<S8_String> flags = {scratch};
             flags += "-g -Wno-write-strings";
             flags += "-fdiagnostics-absolute-paths";
-            flags += "-fno-exceptions";
+            flags += "-fsanitize=address";
+            if (is_cpp) flags += "-fno-exceptions";
             if (is_cpp) flags += "-fno-rtti";
-            if (is_cpp) flags += "-fsanitize=address";
             if (is_cpp) flags += "-std=c++11";
             flags += Fmt("-o %.*s", S8_Expand(exe));
 
diff --git a/standalone_libraries/io.h b/standalone_libraries/io.h
index 99ae5fc..72b8711 100644
--- a/standalone_libraries/io.h
+++ b/standalone_libraries/io.h
@@ -32,6 +32,7 @@ typedef enum IO_ErrorResult {
     #define IO__PrintfFormat(fmt, va)
 #endif
 
+typedef void IO_MessageHandler(int kind, const char *file, int line, char *str, int len);
 extern void (*IO_User_OutputMessage)(int kind, const char *file, int line, char *str, int len);
 
 #define IO__STRINGIFY(x) #x
@@ -83,8 +84,8 @@ IO_API IO_ErrorResult IO_OutputError(char *str, int len);
 IO_API void IO_Exit(int error_code);
 IO_API bool IO_IsDebuggerPresent(void);
 
-const int IO_KindPrintf = 1;
-const int IO_KindWarningf = 2;
+static const int IO_KindPrintf = 1;
+static const int IO_KindWarningf = 2;
 
 #define IO_Printf(...) IO__Printf(IO_KindPrintf, __FILE__, __LINE__, __VA_ARGS__)
 #define IO_Warningf(...) IO__Printf(IO_KindWarningf, __FILE__, __LINE__, __VA_ARGS__)
diff --git a/standalone_libraries/preproc_env.h b/standalone_libraries/preproc_env.h
index 8294033..a6a5383 100644
--- a/standalone_libraries/preproc_env.h
+++ b/standalone_libraries/preproc_env.h
@@ -113,8 +113,4 @@
     #error couldnt figure out OS
 #endif
 
-// #if COMPILER_CLANG
-//     #pragma clang diagnostic push
-//     #pragma clang diagnostic ignored "-Wmicrosoft-enum-forward-reference"
-// #endif
 #endif
\ No newline at end of file
diff --git a/standalone_libraries/string.h b/standalone_libraries/string.h
index fb28dc9..4a71c5c 100644
--- a/standalone_libraries/string.h
+++ b/standalone_libraries/string.h
@@ -99,7 +99,7 @@ enum {
     S8_SplitFlag_SplitInclusive = 2,
 };
 
-const bool S8_IgnoreCase = true;
+static const bool S8_IgnoreCase = true;
 
 #if defined(__has_attribute)
     #if __has_attribute(format)