From b6f55eac14a2db703b1fae978a51dc6668301595 Mon Sep 17 00:00:00 2001
From: Luca Boccassi <bluca@debian.org>
Date: Sun, 4 Nov 2018 21:14:35 +0000
Subject: [PATCH] Problem: unity build broken with Sun Studio

Solution: define UNITY_WEAK_PRAGMA when building with the Sun compiler
as it does not support the weak attribute.
---
 configure.ac | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/configure.ac b/configure.ac
index 00b3b7a1..254005b9 100644
--- a/configure.ac
+++ b/configure.ac
@@ -322,10 +322,11 @@ case "${host_os}" in
         ;;
 esac
 
-# Sun Studio does not like anonymous structures in unions
+# Sun Studio does not like anonymous structures in unions and does not have weak attribute
 if test "x$libzmq_cv_[]_AC_LANG_ABBREV[]_sun_studio_compiler" = "xyes"; then
     CXXFLAGS="${CXXFLAGS} -features=extensions"
     CFLAGS="${CFLAGS} -features=extensions"
+    CPPFLAGS="${CPPFLAGS} -DUNITY_WEAK_PRAGMA"
 fi
 
 # Checks for libraries