Platform : Windows XP Sp3 , latest (29th Jun 2009) msys,binutils,make,runtime and GCC
using optimization (CFLAGS = -O2 -fexceptions) the testing fails at
make: Leaving directory `/home/Massimo/gsl-1.12/integration'
make: Entering directory `/home/Massimo/gsl-1.12/integration'
FAIL: qawc(f459) elist (1.8329242496630777e-015 observed vs
1.8330829482071535e-015 expected) 
using -ffloat-store fix the issue.
Brian Gough (GSL maintainer) is confirming the issue (fails the same test) using Gcc 4.4.0 under Linux.
Brian also confirmed that no fails were present using gcc 4.3.0 under Linux.
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