diff options
Diffstat (limited to 'unix/tclUnixInit.c')
| -rw-r--r-- | unix/tclUnixInit.c | 30 |
1 files changed, 23 insertions, 7 deletions
diff --git a/unix/tclUnixInit.c b/unix/tclUnixInit.c index f07b123..1617cba 100644 --- a/unix/tclUnixInit.c +++ b/unix/tclUnixInit.c @@ -33,7 +33,10 @@ #endif #ifdef __CYGWIN__ -DLLIMPORT extern __stdcall unsigned char GetVersionExA(void *); +DLLIMPORT extern __stdcall unsigned char GetVersionExW(void *); +DLLIMPORT extern __stdcall void *LoadLibraryW(const void *); +DLLIMPORT extern __stdcall void FreeLibrary(void *); +DLLIMPORT extern __stdcall void *GetProcAddress(void *, const char *); DLLIMPORT extern __stdcall void GetSystemInfo(void *); #define NUMPLATFORMS 4 @@ -66,14 +69,14 @@ typedef struct _SYSTEM_INFO { int wProcessorRevision; } SYSTEM_INFO; -typedef struct _OSVERSIONINFOA { +typedef struct _OSVERSIONINFOW { DWORD dwOSVersionInfoSize; DWORD dwMajorVersion; DWORD dwMinorVersion; DWORD dwBuildNumber; DWORD dwPlatformId; - char szCSDVersion[128]; -} OSVERSIONINFOA; + wchar_t szCSDVersion[128]; +} OSVERSIONINFOW; #endif #ifdef HAVE_COREFOUNDATION @@ -747,7 +750,8 @@ TclpSetVariables( { #ifdef __CYGWIN__ SYSTEM_INFO sysInfo; - OSVERSIONINFOA osInfo; + static OSVERSIONINFOW osInfo; + static int osInfoInitialized = 0; char buffer[TCL_INTEGER_SPACE * 2]; #elif !defined(NO_UNAME) struct utsname name; @@ -860,8 +864,20 @@ TclpSetVariables( unameOK = 0; #ifdef __CYGWIN__ unameOK = 1; - osInfo.dwOSVersionInfoSize = sizeof(OSVERSIONINFOA); - GetVersionExA(&osInfo); + if (!osInfoInitialized) { + HANDLE handle = LoadLibraryW(L"NTDLL"); + int(__stdcall *getversion)(void *) = + (int(__stdcall *)(void *))GetProcAddress(handle, "RtlGetVersion"); + osInfo.dwOSVersionInfoSize = sizeof(OSVERSIONINFOW); + if (!getversion || getversion(&osInfo)) { + GetVersionExW(&osInfo); + } + if (handle) { + FreeLibrary(handle); + } + osInfoInitialized = 1; + } + GetSystemInfo(&sysInfo); if (osInfo.dwPlatformId < NUMPLATFORMS) { |