features.h; tls_validate_require_cipher: log flag & tests

[exim.git] / src / OS / os.h-Linux

diff --git a/src/OS/os.h-Linux b/src/OS/os.h-Linux
index eb7036d0f9f76d204947b52af19bc1333b7a4e17..5186ec89dde44f645efa85bf55ae03954ed24b8a 100644 (file)
--- a/src/OS/os.h-Linux
+++ b/src/OS/os.h-Linux
@@ -1,5 +1,12 @@
 /* Exim: OS-specific C header file for Linux */
 
+/* Some weird variants may require invocation with C99 and features.h
+inclusion to build, with the 64-bit arithmetic. Make compiler selection
+their problem, but build anyway. */
+
+#include <features.h>
+
+
 #define CRYPT_H
 #define GLIBC_IP_OPTIONS
 #define HAVE_MMAP