[Bug-gsl] Printf does not work with gsl_integration

[Stefan An]

Dear GSL developer,

respect for all the work. I try to use gsl_integration for some program i 
write for my dissertation and it seems very well suited to my needs.
My system is Windows 7, Cygwin, gcc 4.6.1. Compiling the sample program 
from 
http://www.gnu.org/software/gsl/manual/html_node/Numerical-integration-examples.html
was successful (no warnings, no errors). I linked the libgsl.a and 
libgslblas.a to the program. The cygblas-0.dll is in the working directory. 
When the program is started, i do not get any screen output. If i remove 
the calls to 
        gsl_integration_workspace_alloc(...)
and
gsl_integration_qags(...)                        routines, i get screen 
output although the non initialized variables result in some arbitrary 
large number output. How may it be possible, that gsl_integration 
interferes with printf? Do i misunderstand something?
I'm not really a c professional, but i do not see how i could manage 
knocking out printf by accident only by using some integration routine. ;(

Yours Stefan Andree
    
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