Default to register_printf_specifier() if no printf hooking #defined

This allows us to build (non-./configured) external tools against
libstrongswan without explicitly specifiying the most commonly used
printf hooking function.

diff --git a/src/libstrongswan/printf_hook.h b/src/libstrongswan/printf_hook.h
index 11fd66ce9cba5d467045cc4a87c5802376e088a2..8e4a08302322c60470e3a0bc89d4507d925f1347 100644 (file)
--- a/src/libstrongswan/printf_hook.h
+++ b/src/libstrongswan/printf_hook.h
@@ -26,6 +26,13 @@ typedef struct printf_hook_t printf_hook_t;
 typedef struct printf_hook_spec_t printf_hook_spec_t;
 typedef enum printf_hook_argtype_t printf_hook_argtype_t;
 
+#if !defined(USE_VSTR) && \
+       !defined(HAVE_PRINTF_FUNCTION) && \
+       !defined(HAVE_PRINTF_SPECIFIER)
+/* assume newer glibc register_printf_specifier if none given */
+#define HAVE_PRINTF_SPECIFIER
+#endif
+
 #if !defined(USE_VSTR) && \
        (defined(HAVE_PRINTF_FUNCTION) || defined(HAVE_PRINTF_SPECIFIER))