Re: Strange errors running gcc tests on Cygwin
- Date: Sun, 5 Mar 2017 03:46:33 +0000
- From: JonY <10walls@xxxxxxxxx>
- Subject: Re: Strange errors running gcc tests on Cygwin
On 03/05/2017 02:52 AM, Daniel Santos wrote: > Well, that's the silly thing; when I ran all of this on my patched code, > I did not get these errors. I'm planning on re-running them kind-of in > hopes that I *will* get these errors so that my compare will be clean, > but to me this is still not good. make check should NEVER be using any > native compilers or gcc libraries because that would entirely defeat the > purpose of doing the tests. I would like to understand what it causing > this. Perhaps it is some type of regression? Note that it claims to be > setting the LD_LIBRARY_PATH with this directory as the second element: > > > Setting LD_LIBRARY_PATH to > .:/d/builds/head-test-unpatched-x86_64-pc-cygwin/x86_64-pc-cygwin/./libgfortran/.libs:/d/builds/head-test-unpatched-x86_64-pc-cygwin/x86_64-pc-cygwin/./libquadmath/.libs:/d/builds/head-test-unpatched-x86_64-pc-cygwin/gcc:.:/d/builds/head-test-unpatched-x86_64-pc-cygwin/x86_64-pc-cygwin/./libgfortran/.libs:/d/builds/head-test-unpatched-x86_64-pc-cygwin/x86_64-pc-cygwin/./libquadmath/.libs:/d/builds/head-test-unpatched-x86_64-pc-cygwin/gcc > > spawn [open ...] > D:/builds/head-test-unpatched-x86_64-pc-cygwin/gcc/testsuite/gfortran2/sync_3.exe: > error while loading shared libraries: cyggfortran-4.dll: cannot open > shared object file: No such file or directory > Cygwin does NOT use LD_LIBRARY_PATH, Cygwin uses PATH like all Windows programs. It is one aspect that does not conform to *nix expectations. Running tests under Cygwin is also complicated by the condition all DLLs do not get rebased at runtime, or a fork() can fail. > > This further implies that, if it is looking in the local environment for > a library and not the build tree, then *all* test results could be > invalid due to it using compilers and libraries locally installed rather > than from the build tree, which would be very bad -- a regression that > hides other regressions! > > As much as I just want to get my own tests done, I suppose I better > debug this. *sigh* > > Daniel > > I suppose you can try to run s/LD_LIBRARY_PATH/PATH/g to see how it goes.
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