X-Git-Url: https://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?p=elogind.git;a=blobdiff_plain;f=src%2Fsd-daemon.h;h=fdf3cc03548cce17bd94bb5811dd00edccbd761e;hp=347421381f4ec61d14cea796b8954ace502c5f7b;hb=5a1e99375d03bc88795d68c66bf3933dd04c1015;hpb=96d4ce01103ebebe9335fb321667043bb620c06b

diff --git a/src/sd-daemon.h b/src/sd-daemon.h
index 347421381..fdf3cc035 100644
--- a/src/sd-daemon.h
+++ b/src/sd-daemon.h
@@ -67,13 +67,21 @@ extern "C" {
   See sd-daemon(7) for more information.
 */
 
+#ifndef _sd_printf_attr_
 #if __GNUC__ >= 4
 #define _sd_printf_attr_(a,b) __attribute__ ((format (printf, a, b)))
-#define _sd_hidden_ __attribute__ ((visibility("hidden")))
 #else
 #define _sd_printf_attr_(a,b)
+#endif
+#endif
+
+#ifndef _sd_hidden_
+#if (__GNUC__ >= 4) && !defined(SD_EXPORT_SYMBOLS)
+#define _sd_hidden_ __attribute__ ((visibility("hidden")))
+#else
 #define _sd_hidden_
 #endif
+#endif
 
 /*
   Log levels for usage on stderr: