[Lazarus] While starting IDE, lazarus lock, without nay error

[FreeMan]

On 15.08.2015 18:33, Mattias Gaertner wrote:
> Sounds as if the bug was not introduced after 49639.
>
> Does the lock happen with fpc 2.6.4?
>
>   
> Mattias
and the end, I found bug (I hope) before goes mad.
osx tosemite 10.10.5 qtx64 fpc svn r31326
lazarus r49600 I can say stable for me.
r49611:
In terminal, make then lazbuild so many result like this
.............Warning: (5066) Symbol "........." is deprecated: "Use the 
function in LazFileUtils unit" LazFileCache unit and some others units 
as well.
Then IDE start. From "Tool" menu build IDE,
get this error in messages window:
Panic: internal error: unable to execute: Failed to create pipes
last 5-6 packages aborted and line's color is red, IDE not lock still 
running,
redo from "Tool" menu build IDE, all lines is green and IDE succes and 
restart IDE

r49612:
In terminal, make then run lazbuild. Lazbuild lock after 5-6 lines 
result, no error.
each change version, delete all lazarus file and directly download all 
files from svn then make that, not update or downgrade. I mean clean 
install.

Why I nearly goes mad :)
I started r49600 then update one by one I mean "svn update -r49601" to 
r49615 after each update then make then run lazbuild then run IDE then 
build from menu. On r49615 lazbuild lock then start downgrade version on 
by one. on r49613 lazarus maked lazbuild run, IDE run, everythink is 
okey. Last tıme I removed all fpc files and rebuild fpc then lazarus 
(before remove lazarus files) r49613 make is okey but lazbuild lock 
again ??? it was worked before reinstall fpc???
Then start again one by one downgrade version and find result, its on 
first paragraph on this mail.
I mean if you wanna test, remove all files fpc and lazarus then make it. 
some file(s) cached and not removed I think.

And the bug is unit's uses orders and can fileutils & UTF8 problem (I think)
regards