[Scons-users] strange behavior with path as an array

[robert zeigler]

That should read:

"I would much rather my build system fail early with a comprehensible error
message about what's wrong with my build script."




On Thu, Sep 12, 2013 at 2:54 PM, robert zeigler <robert.zeigler at gmail.com>wrote:


> Hi Dirk,

>

> I realize the form is invalid, and I don't expect scons to support it. As

> a user, my expectation is that scons would have detected the unsupported

> form and thrown an error early. Instead, scons successfully built the

> project (the first time) but evidently the hashed information about the

> path is stored in a way that causes scons to think that targets are stale

> when they are not.  I would much rather my build system fail error with a

> comprehensible error message about what's wrong with my build script.

>

> Robert

>

>

>

>

> On Thu, Sep 12, 2013 at 1:55 PM, Dirk Bächle <tshortik at gmx.de> wrote:

>

>> Hi Robert,

>>

>>

>> On 11.09.2013 00:32, robert zeigler wrote:

>>

>>> I think I've uncovered an scons bug (or at least a not-well-documented

>>> "feature").

>>>

>>> [...]

>>>

>>>

>>>

>>> The problem is this line:

>>>

>>> path=['/usr/local/bin:/opt/**bin:/bin:/usr/bin']

>>>

>>>

>> this isn't a supported form of specifying path lists in SCons (and we

>> don't claim anywhere in our documents and manuals that it would be). For

>> example, see section "4.3. Finding Libraries: the $LIBPATH Construction

>> Variable" in the UserGuide where the correct forms

>>

>>

>>  If it is specified as:

>>>

>>> path='/usr/local/bin:/opt/bin:**/bin:/usr/bin'

>>>

>>> Or as:

>>>

>>> path=['/usr/local/bin', '/opt/bin', '/bin', '/usr/bin']

>>>

>>>

>> are mentioned the first time.

>>

>> Since the offending form is not supported, it can't really be considered

>> as a bug. Please use the other two methods, they should work as advertised.

>>

>> Best regards,

>>

>> Dirk

>>

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>>

>

>

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