diff -r ca4c6f590a08 -r 4c3a69b9723a src/cx/printf.h
--- a/src/cx/printf.h	Mon Feb 10 21:30:51 2025 +0100
+++ b/src/cx/printf.h	Mon Feb 10 20:59:02 2025 +0100
@@ -56,6 +56,7 @@
 /**
  * The maximum string length that fits into stack memory.
  */
+cx_attr_export
 extern const unsigned cx_printf_sbo_size;
 
 /**
@@ -71,6 +72,7 @@
 cx_attr_nonnull_arg(1, 2, 3)
 cx_attr_printf(3, 4)
 cx_attr_cstr_arg(3)
+cx_attr_export
 int cx_fprintf(
         void *stream,
         cx_write_func wfc,
@@ -91,6 +93,7 @@
  */
 cx_attr_nonnull
 cx_attr_cstr_arg(3)
+cx_attr_export
 int cx_vfprintf(
         void *stream,
         cx_write_func wfc,
@@ -115,6 +118,7 @@
 cx_attr_nonnull_arg(1, 2)
 cx_attr_printf(2, 3)
 cx_attr_cstr_arg(2)
+cx_attr_export
 cxmutstr cx_asprintf_a(
         const CxAllocator *allocator,
         const char *fmt,
@@ -153,6 +157,7 @@
  */
 cx_attr_nonnull
 cx_attr_cstr_arg(2)
+cx_attr_export
 cxmutstr cx_vasprintf_a(
         const CxAllocator *allocator,
         const char *fmt,
@@ -222,6 +227,7 @@
 cx_attr_nonnull_arg(1, 2, 3, 4)
 cx_attr_printf(4, 5)
 cx_attr_cstr_arg(4)
+cx_attr_export
 int cx_sprintf_a(
         CxAllocator *alloc,
         char **str,
@@ -266,6 +272,7 @@
 cx_attr_cstr_arg(4)
 cx_attr_access_rw(2)
 cx_attr_access_rw(3)
+cx_attr_export
 int cx_vsprintf_a(
         CxAllocator *alloc,
         char **str,
@@ -324,6 +331,7 @@
 cx_attr_access_rw(2)
 cx_attr_access_rw(3)
 cx_attr_access_rw(4)
+cx_attr_export
 int cx_sprintf_sa(
         CxAllocator *alloc,
         char *buf,
@@ -378,6 +386,7 @@
  */
 cx_attr_nonnull
 cx_attr_cstr_arg(5)
+cx_attr_export
 int cx_vsprintf_sa(
         CxAllocator *alloc,
         char *buf,