X-Git-Url: https://perl5.git.perl.org/perl5.git/blobdiff_plain/34d1470613b86b900a3785aa28a5327a34f54cba..196f7c461ba850055201ff924cdf91c397a77bc7:/README.hpux

diff --git a/README.hpux b/README.hpux
index 6f65c6b..9d78a86 100644
--- a/README.hpux
+++ b/README.hpux
@@ -661,6 +661,26 @@ best fix is to patch the header to match:
 
   #define INT64_C(__c)                    __CONCAT_L__(__c,l)
 
+=head1 Redeclaration of "sendpath" with a different storage class specifier
+
+The following compilation warnings may happen in HP-UX releases
+earlier than 11.31 but are harmless:
+
+  cc: "/usr/include/sys/socket.h", line 535: warning 562: Redeclaration of "sendfile" with a different storage class specifier: "sendfile" will have internal linkage.
+  cc: "/usr/include/sys/socket.h", line 536: warning 562: Redeclaration of "sendpath" with a different storage class specifier: "sendpath" will have internal linkage.
+
+They seem to be caused by broken system header files, and also other
+open source projects are seeing them.  The following HP-UX patches
+should make the warnings go away:
+
+  CR JAGae12001: PHNE_27063
+  Warning 562 on sys/socket.h due to redeclaration of prototypes
+
+  CR JAGae16787:
+  Warning 562 from socket.h sendpath/sendfile -D_FILEFFSET_BITS=64
+
+  CR JAGae73470 (11.23)
+  ER: Compiling socket.h with cc -D_FILEFFSET_BITS=64 warning 267/562
 
 =head1 Miscellaneous