问MinGW :访问__argv[0]会产生SegmentationFault (有时...)

EN

#include <stdlib.h>
#include <windows.h>

int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, int nCmdShow)
{
char cmd[1024];

// line below work OK with Dev-CPP and TDM-GCC 4.7.1 
// (and all previous versions I've used ...) but got a
// "Program received signal SIGSEGV, Segmentation fault" 
// when using C::B and GCC 4.8.1-4
strcpy(cmd, __argv[0]);

// line below work fine with C::B and GCC 4.8.1-4 but 
// won't compile with Dev-CPP and TDM-GCC 4.7.1
//  strcpy(cmd, _argv[0]);

MessageBoxA(NULL, cmd, "argv[0]", MB_OK | MB_ICONINFORMATION | MB_TASKMODAL);

return 0;
}

/*
C::B compiler commands :

mingw32-g++.exe -march=i586 -Wextra -Wall -g -fpermissive -Wno-write-strings -D_WIN32_IE=0x0501 -D_WIN32_WINNT=0x0500 -DWINVER=0x0500 -g -march=i586 -Wextra -Wall  -c C:\Dev\Src\C_B\trivialtests\wtest1\wtest1_main.cpp -o obj\Debug\wtest1_main.o
mingw32-g++.exe  -o bin\Debug\wtest1.exe obj\Debug\wtest1_main.o  -static  -lgdi32 -luser32 -lkernel32 -lcomctl32

Dev-C++ compiler commands :
g++.exe -c wtest1_main.cpp -o wtest1_main.o -I"C:/Dev/Dev-Cpp/MinGW64/include" -I"C:/Dev/Dev-Cpp/MinGW64/x86_64-w64-mingw32/include" -I"C:/Dev/Dev-Cpp/MinGW64/lib/gcc/x86_64-w64-mingw32/4.7.1/include/c++" -march=pentium -m32 -Wall -Wextra -D_WIN32_IE=0x0501 -D_WIN32_WINNT=0x0500 -DWINVER=0x0500 -fpermissive -Wno-write-strings
g++.exe wtest1_main.o -o wtest1.exe -L"C:/Dev/Dev-Cpp/MinGW64/lib32" -L"C:/Dev/Dev-Cpp/MinGW64/x86_64-w64-mingw32/lib32" -static-libgcc -mwindows -m32

full GDB message :
Program received signal SIGSEGV, Segmentation fault.
At C:\Dev\Src\C_B\trivialtests\wtest1\wtest1_main.cpp:10
> backtrace
#0  0x004016c0 in WinMain@16 (hInstance=0x400000, hPrevInstance=hPrevInstance@entry=0x0, lpCmdLine=lpCmdLine@entry=0x583282 "", nCmdShow=nCmdShow@entry=10) at C:\Dev\Src\C_B\trivialtests\wtest1\wtest1_main.cpp:10
#1  0x0041117b in main (argc=1, argv=0x3e17f0, __p__environ=0x3e1c10) at ../mingwrt-4.0.3-1-mingw32-src/src/libcrt/crt/main.c:91

*/