--- parser3/src/include/pa_config_includes.h	2017/11/15 22:48:57	1.54
+++ parser3/src/include/pa_config_includes.h	2020/12/10 20:47:06	1.63
@@ -184,8 +184,38 @@ inline size_t max(size_t a, size_t b) {
 inline size_t min(size_t a, size_t b){ return a<b?a:b; }
 #endif
 
+#endif // __cplusplus
+
+// libgc usage configuration
+//#define PA_DEBUG_DISABLE_GC
+
+#ifdef PA_DEBUG_DISABLE_GC
+
+#define GC_MALLOC(size) memset(malloc(size), 0 , size)
+#define GC_MALLOC_ATOMIC(size) memset(malloc(size), 0 , size)
+#define GC_REALLOC(ptr, size) realloc(ptr, size)
+#define GC_FREE(ptr) free(ptr)
+
+#define GC_NEW(t) (t *)GC_MALLOC(sizeof (t))
+#define GC_NEW_ATOMIC(t) (t *)GC_MALLOC_ATOMIC(sizeof (t))
+
+#else
+
+// allows to backtrace pointers
+//#define GC_DEBUG
+
+#if 0
+#define GC_THREADS 1
+#define GC_NO_THREAD_REDIRECTS 1
+
+#include "../../../gc/include/gc.h"
+#else
+#include "../lib/gc/include/gc.h"
 #endif
 
+#endif // PA_DEBUG_DISABLE_GC
+
+
 #ifdef __GNUC__
 #  define PA_ATTR_UNUSED __attribute__((unused))
 #else
@@ -195,32 +225,32 @@ inline size_t min(size_t a, size_t b){ r
 #ifdef WIN32
 #define THREAD_LOCAL __declspec(thread)
 #else
-#define THREAD_LOCAL // __thread // multithreading support required only for apache2 module
+#define THREAD_LOCAL __thread // multithreading support required only for apache2 module
 #endif
 
 #ifdef __clang__
-#pragma clang diagnostic ignored "-Wparentheses"       // if(a=b)
-#pragma clang diagnostic ignored "-Wpointer-sign"      // CORD (unsigned char *) to char * in libcord
-#pragma clang diagnostic ignored "-Winline-new-delete" // test for regular new/delete usage in memory.h
+#pragma clang diagnostic ignored "-Wparentheses"         // if(a=b)
+#pragma clang diagnostic ignored "-Wpointer-sign"        // CORD (unsigned char *) to char * in libcord
+#pragma clang diagnostic ignored "-Winline-new-delete"   // test for regular new/delete usage in memory.h
+#pragma clang diagnostic ignored "-Wdeprecated-register" // 'register' specifier is deprecated and incompatible with C++17
+
+#elif defined(__GNUC__)
+#pragma GCC diagnostic ignored "-Wimplicit-fallthrough"  // case without break
+
 #endif
 
 #ifdef _MSC_VER
+// VS 2003
 #pragma warning(disable:4355)  // using this in calls to parent constructors
 #pragma warning(disable:4291)  // no matching operator delete found; memory will not be freed if initialization throws an exception
 #pragma warning(disable:4512)  // assignment operator could not be generated
-#pragma warning(disable:4505)  // unreferenced local function has been removed
 #pragma warning(disable:4127)  // conditional expression is constant; while(true) OK
 #pragma warning(disable:4706)  // assignment within conditional expression if(type var=somethig) OK
 #pragma warning(disable:4996)  // memcpy deprecation
 #pragma warning(disable:4702)  // unreachable code
 #pragma warning(disable:4511)  // copy constructor could not be generated (vs2003 specific)
-#endif
-
-/// to debug backtrace pointers switch this on:
-#if defined(_DEBUG) || defined(PA_RELEASE_ASSERTS)
-//// this switches on straightforward realloc implementation, bad for profiling
-//// note: this is incompatible with -DGC_ASSERTIONS, which can be switched ON in win32/gc/NT_THREADS_MAKEFILE
-#define GC_DEBUG
+// VS 2015
+#pragma warning(disable:4267) // conversion from 'size_t' to 'int', possible loss of data
 #endif
 
 #endif