5 files changed, 31 insertions, 2 deletions
diff --git a/src/misc/bzlib/decompress.c b/src/misc/bzlib/decompress.c
index 47dd98e4..4b7370f1 100644
--- a/src/misc/bzlib/decompress.c
+++ b/src/misc/bzlib/decompress.c
@@ -21,6 +21,10 @@
 
 #include "bzlib_private.h"
 
+#if (__GNUC__ >= 8)
+  #pragma GCC diagnostic ignored "-Wimplicit-fallthrough"
+#endif
+
 ABC_NAMESPACE_IMPL_START
 
 
diff --git a/src/misc/extra/extraUtilReader.c b/src/misc/extra/extraUtilReader.c
index db604396..7ee3ddc3 100644
--- a/src/misc/extra/extraUtilReader.c
+++ b/src/misc/extra/extraUtilReader.c
@@ -22,8 +22,11 @@
 #include "extra.h"
 #include "misc/vec/vec.h"
 
-ABC_NAMESPACE_IMPL_START
+#if (__GNUC__ >= 8)
+  #pragma GCC diagnostic ignored "-Wimplicit-fallthrough"
+#endif
 
+ABC_NAMESPACE_IMPL_START
 
 ////////////////////////////////////////////////////////////////////////
 ///                        DECLARATIONS                              ///
diff --git a/src/misc/mem/mem.c b/src/misc/mem/mem.c
index 23d8d7ec..347d0130 100644
--- a/src/misc/mem/mem.c
+++ b/src/misc/mem/mem.c
@@ -156,6 +156,22 @@ void Mem_FixedStop( Mem_Fixed_t * p, int fVerbose )
 
 /**Function*************************************************************
 
+  Synopsis    [Wrapper for Mem_FlexStop for use in Vec_AttAlloc]
+
+  Description []
+               
+  SideEffects []
+
+  SeeAlso     []
+
+***********************************************************************/
+void Mem_FlexStop2( Mem_Flex_t * p )
+{
+     Mem_FlexStop( p, 0 );  
+}
+
+/**Function*************************************************************
+
   Synopsis    []
 
   Description []
diff --git a/src/misc/mem/mem.h b/src/misc/mem/mem.h
index 4c0aa038..7bc5306c 100644
--- a/src/misc/mem/mem.h
+++ b/src/misc/mem/mem.h
@@ -50,6 +50,7 @@ extern int           Mem_FixedReadMaxEntriesUsed( Mem_Fixed_t * p );
 // flexible-size-block memory manager
 extern Mem_Flex_t *  Mem_FlexStart();
 extern void          Mem_FlexStop( Mem_Flex_t * p, int fVerbose );
+extern void          Mem_FlexStop2( Mem_Flex_t * p );
 extern char *        Mem_FlexEntryFetch( Mem_Flex_t * p, int nBytes );
 extern void          Mem_FlexRestart( Mem_Flex_t * p );
 extern int           Mem_FlexReadMemUsage( Mem_Flex_t * p );
diff --git a/src/misc/util/abc_global.h b/src/misc/util/abc_global.h
index 5ba614c7..d1a9b4d3 100644
--- a/src/misc/util/abc_global.h
+++ b/src/misc/util/abc_global.h
@@ -329,7 +329,12 @@ static inline int      Abc_Lit2Att4( int Lit )                { assert(Lit >= 0)
 typedef ABC_INT64_T abctime;
 static inline abctime Abc_Clock()
 {
-#if (defined(LIN) || defined(LIN64)) && !(__APPLE__ & __MACH__) && !defined(__MINGW32__)
+#if defined(__APPLE__) && defined(__MACH__)
+  #define APPLE_MACH (__APPLE__ & __MACH__)
+#else
+  #define APPLE_MACH 0
+#endif
+#if (defined(LIN) || defined(LIN64)) && !APPLE_MACH && !defined(__MINGW32__)
     struct timespec ts;
     if ( clock_gettime(CLOCK_THREAD_CPUTIME_ID, &ts) < 0 ) 
         return (abctime)-1;