Fix EXPERIMENTAL_DMARC build

[users/jgh/exim.git] / src / OS / os.h-OpenUNIX

diff --git a/src/OS/os.h-OpenUNIX b/src/OS/os.h-OpenUNIX
index 90be8d56deb51bcb1c26960e94fb304c24037cde..67d1063b0851d841bde5750ce5db55a7ee0c9289 100644 (file)
--- a/src/OS/os.h-OpenUNIX
+++ b/src/OS/os.h-OpenUNIX
@@ -13,4 +13,7 @@
 #define _SVID3
 #define NEED_H_ERRNO
 
+/* default is non-const */
+#define ICONV_ARG2_TYPE const char **
+
 /* End */