X-Git-Url: https://git.exim.org/exim.git/blobdiff_plain/9c19b270ead379003ece51fb49b83e7ea8b2d25e..7b6f3bd52dc20f14fe0e73859e4d63e5668bc97c:/src/OS/os.h-SunOS5

diff --git a/src/OS/os.h-SunOS5 b/src/OS/os.h-SunOS5
index dd14f25c8..45a1171c8 100644
--- a/src/OS/os.h-SunOS5
+++ b/src/OS/os.h-SunOS5
@@ -28,7 +28,13 @@ it seems. */
 
 #define PAM_CONVERSE_ARG2_TYPE  struct pam_message
 
+
 /* default is non-const */
 #define ICONV_ARG2_TYPE const char **
 
+#if _POSIX_C_SOURCE < 200112L
+# define MISSING_UNSETENV_3
+#endif
+
+
 /* End */