stdlib: Fixed compiler warnings about int vs size_t.
diff --git a/src/stdlib/SDL_getenv.c b/src/stdlib/SDL_getenv.c
index fd636e7..2bdacd3 100644
--- a/src/stdlib/SDL_getenv.c
+++ b/src/stdlib/SDL_getenv.c
@@ -110,7 +110,7 @@ int
SDL_setenv(const char *name, const char *value, int overwrite)
{
int added;
- int len, i;
+ size_t len, i;
char **new_env;
char *new_variable;
@@ -218,7 +218,7 @@ SDL_getenv(const char *name)
char *
SDL_getenv(const char *name)
{
- int len, i;
+ size_t len, i;
char *value;
/* Input validation */