Disable unused fields in FILE and __libc.

[wasi-libc.git] / libc-top-half / musl / src / stdio / vdprintf.c

diff --git a/libc-top-half/musl/src/stdio/vdprintf.c b/libc-top-half/musl/src/stdio/vdprintf.c
index c35d9b4fb0412fdefb2f4a07c198b8de8b451871..e366bfa0c6ff86034b0aad050c4dab0aa6706ba7 100644 (file)
--- a/libc-top-half/musl/src/stdio/vdprintf.c
+++ b/libc-top-half/musl/src/stdio/vdprintf.c
@@ -10,7 +10,9 @@ int vdprintf(int fd, const char *restrict fmt, va_list ap)
        FILE f = {
                .fd = fd, .lbf = EOF, .write = wrap_write,
                .buf = (void *)fmt, .buf_size = 0,
+#if defined(__wasilibc_unmodified_upstream) || defined(_REENTRANT)
                .lock = -1
+#endif
        };
        return vfprintf(&f, fmt, ap);
 }