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| author | jan.nijtmans <nijtmans@users.sourceforge.net> | 2013-11-21 09:24:59 (GMT) |
|---|---|---|
| committer | jan.nijtmans <nijtmans@users.sourceforge.net> | 2013-11-21 09:24:59 (GMT) |
| commit | cb9a7e6abbfcd2e3a2613ffabf1f65518e03c403 (patch) | |
| tree | d34a7e05781d7862cf2f193fe9488c59c475846a /library/init.tcl | |
| parent | 6a3d5140e51ad5e33290aca9a36027e44ccabb66 (diff) | |
| parent | 2254dff19ede852c343b6cc357a840917e55b112 (diff) | |
| download | tcl-cb9a7e6abbfcd2e3a2613ffabf1f65518e03c403.zip tcl-cb9a7e6abbfcd2e3a2613ffabf1f65518e03c403.tar.gz tcl-cb9a7e6abbfcd2e3a2613ffabf1f65518e03c403.tar.bz2 | |
The only relyable way of changing environment variables to uppercase (e.g. env(ComSpec) to env(COMSPEC)) is unsetting the old one first. Long-standing bug, exposed by [219226].
Diffstat (limited to 'library/init.tcl')
| -rw-r--r-- | library/init.tcl | 12 |
1 files changed, 4 insertions, 8 deletions
diff --git a/library/init.tcl b/library/init.tcl index 1ca6413..f63eedf 100644 --- a/library/init.tcl +++ b/library/init.tcl @@ -130,9 +130,9 @@ if {(![interp issafe]) && ($tcl_platform(platform) eq "windows")} { switch -- $u { COMSPEC - PATH { - if {![info exists env($u)]} { - set env($u) $env($p) - } + set temp $env($p) + unset env($p) + set env($u) $temp trace add variable env($p) write \ [namespace code [list EnvTraceProc $p]] trace add variable env($u) write \ @@ -142,11 +142,7 @@ if {(![interp issafe]) && ($tcl_platform(platform) eq "windows")} { } } if {![info exists env(COMSPEC)]} { - if {$tcl_platform(os) eq "Windows NT"} { - set env(COMSPEC) cmd.exe - } else { - set env(COMSPEC) command.com - } + set env(COMSPEC) cmd.exe } } InitWinEnv |