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| author | dkf <donal.k.fellows@manchester.ac.uk> | 2014-02-03 22:29:31 (GMT) |
|---|---|---|
| committer | dkf <donal.k.fellows@manchester.ac.uk> | 2014-02-03 22:29:31 (GMT) |
| commit | 76a8030f939360bd39bc940842f79175c47ed828 (patch) | |
| tree | 2460b8aed34b1dc39f26999cb2294274056a1448 /win/tclWinInit.c | |
| parent | 95a6025facddaf366bf92837026bdcafec4561ec (diff) | |
| parent | 9acd6848382529da76b66a3108c7cceb755dcffa (diff) | |
| download | tcl-76a8030f939360bd39bc940842f79175c47ed828.zip tcl-76a8030f939360bd39bc940842f79175c47ed828.tar.gz tcl-76a8030f939360bd39bc940842f79175c47ed828.tar.bz2 | |
merge trunk
Diffstat (limited to 'win/tclWinInit.c')
| -rw-r--r-- | win/tclWinInit.c | 18 |
1 files changed, 14 insertions, 4 deletions
diff --git a/win/tclWinInit.c b/win/tclWinInit.c index 7b027c5..b3f8f41 100644 --- a/win/tclWinInit.c +++ b/win/tclWinInit.c @@ -530,7 +530,8 @@ TclpSetVariables( SYSTEM_INFO info; OemId oemId; } sys; - OSVERSIONINFOW osInfo; + static OSVERSIONINFOW osInfo; + static int osInfoInitialized = 0; Tcl_DString ds; TCHAR szUserName[UNLEN+1]; DWORD cchUserNameLen = UNLEN; @@ -538,9 +539,18 @@ TclpSetVariables( Tcl_SetVar2Ex(interp, "tclDefaultLibrary", NULL, TclGetProcessGlobalValue(&defaultLibraryDir), TCL_GLOBAL_ONLY); - osInfo.dwOSVersionInfoSize = sizeof(OSVERSIONINFOW); - GetVersionExW(&osInfo); - + if (!osInfoInitialized) { + HANDLE handle = LoadLibraryW(L"NTDLL"); + int(*getversion)(void *) = (int(*)(void *))GetProcAddress(handle, "RtlGetVersion"); + osInfo.dwOSVersionInfoSize = sizeof(OSVERSIONINFOW); + if (!getversion || getversion(&osInfo)) { + GetVersionExW(&osInfo); + } + if (handle) { + FreeLibrary(handle); + } + osInfoInitialized = 1; + } GetSystemInfo(&sys.info); /* |