build folder not included in path sent to external viewer when using a build folder

What steps will reproduce the problem?
1.Check "Use a build subdirectory for output files" in the settings.
2.Set pdf viewer to external viewer.
3.Compile any simple latex document and let it be opened in the external viewer 
by Texmaker .

What is the expected output? What do you see instead?
I expect the file to be shown. Instead it can not find the file as the build 
subdirectory is not included in the path. If the file is at 
/mypdf/build/mypdf.pdf then the path sent to the external viewer points only to 
/mypdf/mypdf.pdf.

What version of the product are you using? On what operating system?
Texmaker 4.1 from the Ubuntu repository on Linux mint "Qiana".

Original issue reported on code.google.com by be.ellen...@gmail.com on 23 Dec 2014 at 10:46

Merged into: #1375

code-google-com / texmaker

build folder not included in path sent to external viewer when using a build folder #1442