Enable locale-independent strtod_l/strtof_l on Linux glibc

Restrict the `__linux__` check for `FLATBUFFERS_LOCALE_INDEPENDENT` in `include/flatbuffers/base.h` to `(!defined(__linux__) || defined(__GLIBC__))` so Linux with glibc enables `strtod_l`/`strtof_l`.

PiperOrigin-RevId: 1002266254

include/flatbuffers/base.h

@@ -271,7 +271,7 @@ namespace flatbuffers {
   #if (defined(_MSC_VER) && _MSC_VER >= 1800) || \
       (defined(__ANDROID__) && defined(__ANDROID_API__) && __ANDROID_API__>= 26) || \
       (defined(_XOPEN_VERSION) && (_XOPEN_VERSION >= 700)) && \
-      !defined(__Fuchsia__)
+      !defined(__Fuchsia__) && (!defined(__linux__) || defined(__GLIBC__))
     #define FLATBUFFERS_LOCALE_INDEPENDENT 1
   #else
     #define FLATBUFFERS_LOCALE_INDEPENDENT 0

lobster/flatbuffers.lobster

@@ -24,15 +24,14 @@ class handle:
 struct offset:
     o:int
 
-enum sizeof:
-    sz_8 = 1
-    sz_16 = 2
-    sz_32 = 4
-    sz_64 = 8
-    sz_voffset = 2
-    sz_uoffset = 4
-    sz_soffset = 4
-    sz_metadata_fields = 2
+let sz_8 = 1
+let sz_16 = 2
+let sz_32 = 4
+let sz_64 = 8
+let sz_voffset = 2
+let sz_uoffset = 4
+let sz_soffset = 4
+let sz_metadata_fields = 2
 
 class builder:
     buf = "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"