don't use -Werror on solaris

Author: erh

SConstruct

@@ -741,7 +741,9 @@ else:
     print( "No special config for [" + os.sys.platform + "] which probably means it won't work" )
 
 if nix:
-    env.Append( CPPFLAGS="-fPIC -fno-strict-aliasing -ggdb -pthread -Wall -Werror -Wsign-compare -Wno-unknown-pragmas -Winvalid-pch" )
+    env.Append( CPPFLAGS="-fPIC -fno-strict-aliasing -ggdb -pthread -Wall -Wsign-compare -Wno-unknown-pragmas -Winvalid-pch" )
+    if not solaris:
+        env.Append( CPPFLAGS=" -Werror " )
     env.Append( CXXFLAGS=" -Wnon-virtual-dtor " )
     env.Append( LINKFLAGS=" -fPIC -pthread -rdynamic" )
     env.Append( LIBS=[] )