On 10 March 2017 at 06:39, Daniel Santos wrote: > Hello, > > I've been trying to get some clean test results on Cygwin and have > encountered a number of problems. I've opened a report for the one I'm most > concerned with (https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79867). When an > executable is being loaded, Windows searches for dlls based upon a few silly > ms-like rules (https://msdn.microsoft.com/en-us/library/7d83bc18.aspx), > followed by the PATH environment variable. LD_LIBRARY_PATH is only used in > Cygwin when loading a dll at run-time via dlopen(). This means that ALL > tests are performed by linking in the shared libs that are installed on the > *system* and not those built in the bootstrap. If the dll is not installed > on the system then the test fails. Example: > > FAIL: gfortran.dg/coarray/sync_3.f90 -fcoarray=single -O2 output pattern > test, is > D:/builds/head-test-moutline-x86_64-pc-cygwin/gcc/testsuite/gfortran/sync_3.exe: > error while loading shared libraries: cyggfortran-4.dll: cannot open shared > object file: No such file or directory
This is the cause of https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66530
