[windows-xp] `uru gem/ruby --version` fails

[Jon]

XP SP3 fails with:

C:\>uru ver
uru v0.6.0

C:\>uru ls --verbose
         187p371: ruby 1.8.7 (2012-10-12 patchlevel 371) [i386-mingw32]
                  ID: 1.8.7-p371
                  Home: c:\ruby187\bin
                  GemHome:

 =>       system: ruby 1.9.3p415 (2013-04-11 revision 40231) [i386-mingw32]
                  ID: 1.9.3-p415
                  Home: c:\ruby193\bin
                  GemHome:


C:\>uru gem --version
ruby 1.8.7 (2012-10-12 patchlevel 371) [i386-mingw32]

Unable to run `%s %s`

 gem --version

C:\>uru ruby --version
ruby 1.8.7 (2012-10-12 patchlevel 371) [i386-mingw32]

Unable to run `%s %s`

 ruby --version

[Jon]

post fix for broken error reporting:

C:\>uru gem --version
ruby 1.8.7 (2012-10-12 patchlevel 371) [i386-mingw32]

[ERROR] setting GEM_HOME, unable to run `gem --version`


C:\>uru ruby --version
ruby 1.8.7 (2012-10-12 patchlevel 371) [i386-mingw32]

[ERROR] setting GEM_HOME, unable to run `ruby --version`

[Jon]

lovely, a bit more instrumentation show it's time to spelunk win7 vs. xp os.Setenv differences:

C:\>uru gem --version
ruby 1.8.7 (2012-10-12 patchlevel 371) [i386-mingw32]

[ERROR] setting GEM_HOME, unable to run `gem --version`


error.Error():
setenv: The system could not find the environment option that was entered.


C:\>uru ruby --version
ruby 1.8.7 (2012-10-12 patchlevel 371) [i386-mingw32]

[ERROR] setting GEM_HOME, unable to run `ruby --version`


error.Error():
setenv: The system could not find the environment option that was entered.

[Jon]

spelunking happening on this golang-nuts ML post

[Jon]

Go may have to spackle around apparent differences in win7 and xp behavior for SetEnvironmentVariableW

[Jon]

Uru built with this Go bug fix (that fixes the os.Setenv bug) appear to fix the bug on WinXP SP3.

[Jon]

v0.6.1 and Go bug fix resolves this issue.