diff -r 5136f2fc32ec -r 26500fc24058 src/printf.c
--- a/src/printf.c	Sat Jan 13 17:51:42 2024 +0100
+++ b/src/printf.c	Sun Jan 14 13:13:12 2024 +0100
@@ -34,6 +34,7 @@
 #ifndef CX_PRINTF_SBO_SIZE
 #define CX_PRINTF_SBO_SIZE 512
 #endif
+unsigned const cx_printf_sbo_size = CX_PRINTF_SBO_SIZE;
 
 int cx_fprintf(
         void *stream,
@@ -85,9 +86,8 @@
         ...
 ) {
     va_list ap;
-    cxmutstr ret;
     va_start(ap, fmt);
-    ret = cx_vasprintf_a(allocator, fmt, ap);
+    cxmutstr ret = cx_vasprintf_a(allocator, fmt, ap);
     va_end(ap);
     return ret;
 }