applied patch #1711089 - disable System::Call and System::Get when building with GCC

git-svn-id: https://svn.code.sf.net/p/nsis/code/NSIS/trunk@5149 212acab6-be3b-0410-9dea-997c60f758d6

Contrib/System/Source/System.c

@@ -5,7 +5,9 @@
 #include "Plugin.h"
 #include "Buffers.h"
 #include "System.h"
+#ifndef __GNUC__
 #include <crtdbg.h>
+#endif /* __GNUC__ */
 #include <objbase.h>
 
 // Parse Section Type 
@@ -39,6 +41,15 @@ HINSTANCE g_hInstance;
 char retexpr[4];
 HANDLE retaddr;
 
+#ifndef __GNUC__
+
+/*
+FIXME:
+GCC cannot compile the inline assembly used by System::Call and
+System::Get, so those functions and their supporting functions
+are disabled when using GCC.
+*/
+
 char *GetResultStr(SystemProc *proc)
 {
     char *buf = AllocString();
@@ -250,6 +261,8 @@ PLUGINFUNCTION(Call)
         GlobalFree((HANDLE) proc); // No, free it
 } PLUGINFUNCTIONEND
 
+#endif /* __GNUC__ */
+
 PLUGINFUNCTIONSHORT(Int64Op)
 {
     __int64 i1, i2 = 0, i3, i4;
@@ -307,6 +320,8 @@ __int64 GetIntFromString(char **p)
     return myatoi(buffer);
 }
 
+#ifndef __GNUC__
+
 SystemProc *PrepareProc(BOOL NeedForCall)
 {
     int SectionType = PST_PROC, // First section is always proc spec
@@ -1370,6 +1385,8 @@ void CallStruct(SystemProc *proc)
     proc->Params[0].Value = (int) proc->Proc;
 }
 
+#endif /* __GNUC__ */
+
 BOOL WINAPI _DllMainCRTStartup(HANDLE hInst, ULONG ul_reason_for_call, LPVOID lpReserved)
 {
         g_hInstance=hInst;