That worked. Now try +w2 with SunStudio cc.

diff --git a/configure.ac b/configure.ac
index 3e37b88..271cd09 100644 (file)
--- a/configure.ac
+++ b/configure.ac
@@ -100,7 +100,7 @@ fi
 dnl Use SunStudio cc on Solaris.
 if test -d /opt/solarisstudio12.3/bin; then
   PATH=/opt/solarisstudio12.3/bin:$PATH
 dnl Use SunStudio cc on Solaris.
 if test -d /opt/solarisstudio12.3/bin; then
   PATH=/opt/solarisstudio12.3/bin:$PATH

-  CC=/opt/solarisstudio12.3/bin/cc; export CC
+  CC='/opt/solarisstudio12.3/bin/cc +w2'; export CC

 fi
 
 AC_PROG_CC([cc clang gcc])
 fi
 
 AC_PROG_CC([cc clang gcc])