Updating readme.

src/base/main/mainUtils.c

@@ -22,13 +22,17 @@
 #include "mainInt.h"
 
 #if !defined(_WIN32) && !defined(AIX) 
+// comment out the following line if 'readline' is not available
+#define ABC_USE_READ_LINE
+#endif
+
+#ifdef ABC_USE_READ_LINE
 #include <readline/readline.h>
 #include <readline/history.h>
 #endif
 
 ABC_NAMESPACE_IMPL_START
 
-
 ////////////////////////////////////////////////////////////////////////
 ///                        DECLARATIONS                              ///
 ////////////////////////////////////////////////////////////////////////
@@ -72,7 +76,7 @@ char * Abc_UtilsGetUsersInput( Abc_Frame_t * pAbc )
 {
     static char Prompt[5000];
     sprintf( Prompt, "abc %02d> ", pAbc->nSteps );
-#if !defined(_WIN32) && !defined(AIX) 
+#ifdef ABC_USE_READ_LINE
     {
     static char * line = NULL;
     if (line != NULL) ABC_FREE(line);

src/proof/abs/absPth.c

@@ -22,7 +22,8 @@
 #include "proof/pdr/pdr.h"
 #include "proof/ssw/ssw.h"
 
-// to compile on Linux, add -lpthread to LIBS in Makefile
+
+
 
 // comment out this line to disable pthreads
 #define ABC_USE_PTHREADS