Add comments explaining changes to upstream source files.

[wasi-libc.git] / libc-top-half / musl / src / locale / locale_map.c

diff --git a/libc-top-half/musl/src/locale/locale_map.c b/libc-top-half/musl/src/locale/locale_map.c
index 4fbac55925f2e61617a82829423297673ac5b174..ff9ae981cfe001ffdab32b6315edd5cfd36c6144 100644 (file)
--- a/libc-top-half/musl/src/locale/locale_map.c
+++ b/libc-top-half/musl/src/locale/locale_map.c
@@ -1,6 +1,6 @@
 #include <locale.h>
 #include <string.h>
-#ifdef __wasilibc_unmodified_upstream
+#ifdef __wasilibc_unmodified_upstream // WASI has no mmap
 #include <sys/mman.h>
 #endif
 #include "locale_impl.h"
@@ -34,11 +34,9 @@ const struct __locale_map *__get_locale(int cat, const char *val)
        size_t l, n;
 
        if (!*val) {
-#ifdef __wasilibc_unmodified_upstream // getenv
                (val = getenv("LC_ALL")) && *val ||
                (val = getenv(envvars[cat])) && *val ||
                (val = getenv("LANG")) && *val ||
-#endif
                (val = "C.UTF-8");
        }
 
@@ -66,7 +64,7 @@ const struct __locale_map *__get_locale(int cat, const char *val)
                        return p;
                }
 
-#ifdef __wasilibc_unmodified_upstream // locales
+#ifdef __wasilibc_unmodified_upstream // WASI has no mmap, though this code could be made to use something else
        if (!libc.secure) path = getenv("MUSL_LOCPATH");
        /* FIXME: add a default path? */