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Re: Bug Report: Regression in Cygwin 2.11.0-1

Am 01.09.2018 um 10:10 schrieb Marco Atzeri:
Am 01.09.2018 um 03:24 schrieb Bryan Phelps:

Thank you for all the work on Cygwin! I've been using it to spin up an environment to build the OCaml compiler / toolchain, and it was working great.

However, today, all our CI builds mysteriously started failing - at first, I suspected it was a problem with AppVeyor, but I also failures with VSTS. We use an NPM package (`esy-bash`) to spin up a Cygwin environment, and then use that to build the OCaml toolchain.

The error message we started receiving today is:

OCAML_FLEXLINK="../boot/ocamlrun ../flexdll/flexlink.exe" ../byterun/ocamlrun ../ocamlc -g -nostdlib -I ../utils -I ../parsing -I ../stdlib -I ../compilerlibs -strict-sequence -safe-string -strict-formats -w +a-4-9-41-42-44-45-48 -warn-error A -custom ocamlcommon.cma -o ocamltest.exe run_win32.o run_stubs.o ocamltest_config.cmo testlib.cmo run_command.cmo filetype.cmo filecompare.cmo backends.cmo variables.cmo environments.cmo builtin_variables.cmo builtin_modifiers.cmo actions.cmo builtin_actions.cmo tests.cmo builtin_tests.cmo tsl_ast.cmo tsl_parser.cmo tsl_lexer.cmo tsl_semantics.cmo options.cmo main.cmo x86_64-w64-mingw32-gcc: error: ../stdlib\libcamlrun.a: No such file or directory

is libcamlrun.a built correctly and in the same directory than before ?
This mixed "../stdlib\libcamlrun.a" slash looks strange
It does, but remember, we're running on a mixed system. Also the problem is not caused by mixed syntax, the following do not work anymore:
    cd /usr; ls '..\bin'
    cd /; ls 'usr\include'
I think it's good that cygwin used to support this and it should be reestablished.
Note the following did not even work before, due to mount point issues:
    cd /; ls 'usr\bin'
Not sure whether it's worth fixing that seeming inconsistence as well.

Checking the change log, it might be a side effect of

- Fix a buffer underrun problem in Win32 path normalization.

Checking the commit diff
this might be a starting point to analyse...

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