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-rw-r--r--src/base/io/ioReadEqn.c7
1 files changed, 7 insertions, 0 deletions
diff --git a/src/base/io/ioReadEqn.c b/src/base/io/ioReadEqn.c
index 1e4f5d46..999834d6 100644
--- a/src/base/io/ioReadEqn.c
+++ b/src/base/io/ioReadEqn.c
@@ -27,6 +27,8 @@ ABC_NAMESPACE_IMPL_START
/// DECLARATIONS ///
////////////////////////////////////////////////////////////////////////
+#ifdef ABC_USE_CUDD
+
static Abc_Ntk_t * Io_ReadEqnNetwork( Extra_FileReader_t * p );
static void Io_ReadEqnStrCompact( char * pStr );
static int Io_ReadEqnStrFind( Vec_Ptr_t * vTokens, char * pName );
@@ -233,6 +235,11 @@ void Io_ReadEqnStrCutAt( char * pStr, char * pStop, int fUniqueOnly, Vec_Ptr_t *
Vec_PtrPush( vTokens, pToken );
}
+#else
+
+Abc_Ntk_t * Io_ReadEqn( char * pFileName, int fCheck ) { return NULL; }
+
+#endif
////////////////////////////////////////////////////////////////////////
/// END OF FILE ///