GetCommandLine should return non-const strings.

include/winbase.h

@@ -1379,8 +1379,8 @@ BOOL        WINAPI GetCommModemStatus(HANDLE,LPDWORD);
 BOOL        WINAPI GetCommProperties(HANDLE,LPCOMMPROP);
 BOOL        WINAPI GetCommState(HANDLE,LPDCB);
 BOOL        WINAPI GetCommTimeouts(HANDLE,LPCOMMTIMEOUTS);
-LPCSTR      WINAPI GetCommandLineA(void);
-LPCWSTR     WINAPI GetCommandLineW(void);
+LPSTR       WINAPI GetCommandLineA(void);
+LPWSTR      WINAPI GetCommandLineW(void);
 #define     GetCommandLine WINELIB_NAME_AW(GetCommandLine)
 BOOL      WINAPI GetComputerNameA(LPSTR,LPDWORD);
 BOOL      WINAPI GetComputerNameW(LPWSTR,LPDWORD);
@@ -2004,6 +2004,10 @@ VOID        WINAPI SetLastError(DWORD);
 #define GetCurrentThread()  ((HANDLE)0xfffffffe)
 #endif
 
+/* WinMain(entry point) must be declared in winbase.h. */
+/* If this is not declared, we cannot compile many sources written with C++. */
+int WINAPI WinMain(HINSTANCE,HINSTANCE,LPSTR,int);
+
 #ifdef __cplusplus
 }
 #endif

memory/environ.c

@@ -103,7 +103,7 @@ BOOL ENV_BuildEnvironment(void)
 /***********************************************************************
  *           GetCommandLineA      (KERNEL32.289)
  */
-LPCSTR WINAPI GetCommandLineA(void)
+LPSTR WINAPI GetCommandLineA(void)
 {
     return PROCESS_Current()->env_db->cmd_line;
 }
@@ -111,7 +111,7 @@ LPCSTR WINAPI GetCommandLineA(void)
 /***********************************************************************
  *           GetCommandLineW      (KERNEL32.290)
  */
-LPCWSTR WINAPI GetCommandLineW(void)
+LPWSTR WINAPI GetCommandLineW(void)
 {
     PDB *pdb = PROCESS_Current();
     EnterCriticalSection( &pdb->env_db->section );

tools/winebuild/spec32.c

@@ -395,9 +395,9 @@ void BuildSpec32File( FILE *outfile )
                  "\n#include <winbase.h>\n"
                  "static void exe_main(void)\n"
                  "{\n"
-                 "    extern int PASCAL %s(HINSTANCE,HINSTANCE,LPCSTR,INT);\n"
+                 "    extern int PASCAL %s(HINSTANCE,HINSTANCE,LPSTR,INT);\n"
                  "    STARTUPINFOA info;\n"
-                 "    const char *cmdline = GetCommandLineA();\n"
+                 "    LPSTR cmdline = GetCommandLineA();\n"
                  "    while (*cmdline && *cmdline != ' ') cmdline++;\n"
                  "    if (*cmdline) cmdline++;\n"
                  "    GetStartupInfoA( &info );\n"