Add back -DCENTOS switch for cmake, since the previous solution wasn't working for everyone.

--HG--
branch : trunk

CMakeLists.txt

@@ -22,6 +22,7 @@ OPTION(DO_DEBUG "Debug mode" 0)
 OPTION(DO_WARN "Enable all compile warnings" 0)
 OPTION(LARGE_CELL "Large cell size" 0)
 OPTION(SHORT_SLEEP "Short sleep" 0)
+OPTION(CENTOS "CENTOS" 0)
 
 SET(GENREV_SRC
 src/tools/genrevision/genrevision.cpp
@@ -126,12 +127,12 @@ else(SHORT_SLEEP)
 message("* System sleep time is 100ms")
 endif(SHORT_SLEEP)
 
-IF(EXISTS /etc/centos-release)
-    SET(CENTOS 1)
+IF(CENTOS)
+add_definitions(-DCENTOS)
     message("* Building with termcap")
-else(EXISTS /etc/centos-release)
-    SET(CENTOS 0)
-ENDIF(EXISTS /etc/centos-release)
+else(CENTOS)
+    message("* Building with readline")
+ENDIF(CENTOS)
 
 FIND_ACE(ACE)
 if(ACE_FOUND)