On Mon, Feb 26, 2024 at 10:49:55AM -0700, Brian Inglis via Cygwin wrote:
> On 2024-02-25 21:33, gs-cygwin.com--- via Cygwin wrote:
> > Does gcc now depend on libintl-devel ? Is this dependency declared?
> >
> > Along with the release of cygwin 3.5.0, my CI on github started failing,
> > where autoconf would report that a working C compiler was not found for
> > the Cygwin build.
> >
> > The github workflow in question: search for "Windows-Cygwin" in
> > https://github.com/lighttpd/lighttpd1.4/blob/master/.github/workflows/pr.yml
> >
> > I added libintl-devel package to the package install list and things
> > started working again. This was a couple weeks ago and I forget exactly
> > what I did to reproduce it locally, but if you need more details, I can
> > try to document more carefully.
> >
> > Here is the workflow job which failed two weeks ago:
> > https://github.com/gstrauss/lighttpd1.4/actions/runs/7841762861/job/21398761239
> > checking whether the C compiler works... no
> > configure: error: in '/cygdrive/d/a/lighttpd1.4/lighttpd1.4':
> > configure: error: C compiler cannot create executables
>
> $ cygcheck gcc
> Found: C:/.../cygwin64/bin/gcc.exe
> C:/.../cygwin64/bin/gcc.exe
> C:/.../cygwin64/bin/cygwin1.dll
> C:/WINDOWS/system32/KERNEL32.dll
> C:/WINDOWS/system32/ntdll.dll
> C:/WINDOWS/system32/KERNELBASE.dll
> C:/.../cygwin64/bin/cygiconv-2.dll
> C:/.../cygwin64/bin/cygintl-8.dll
>
> so gcc depends on packages libiconv2 and libintl8, and others, providing the
> DLLs, as documented on the gcc-core package summary page:
>
> https://cygwin.com/packages/summary/gcc-core.html
>
> and building gcc-core etc. will require libiconv-devel and libintl-devel.
>
> Check your package build dependencies, and config logs, as internationalized
> packages, as yours may be, require any or all of gettext-devel,
> libiconv-devel, libintl-devel, po4a to build, and some of your build
> dependencies may require headers or libraries provided by -devel packages,
> as cygwin itself requires libintl8, and those -devel packages to build.
>
> You may want to rerun configure with --verbose messages and look at what the
> failing check script and test program expects to be available to use.
I tracked down the problem to using -t in
& C:\setup.exe -qgnO -t | Out-Default
where the significant flag is -t (--allow-test-packages)
If I remove -t, then my build is fine.
If I add -t, then autoconf fails in ./configure with:
checking for gcc... gcc
checking whether the C compiler works... no
configure: error: in '/cygdrive/d/a/lighttpd1.4/lighttpd1.4':
configure: error: C compiler cannot create executables
If I explicitly install libintl-devel in the container setup,
and then run the above command with -t, then my build is fine.
==> Would the gcc maintainer take a look at what is in test packages
declared dependencies?
When I run with (-t): & C:\setup.exe -qgnO -t | Out-Default
22 install gcc-g++ 13.2.1+20240203-0.1
23 erase gcc-g++ 11.4.0-1
https://github.com/gstrauss/lighttpd1.4/actions/runs/8059762782/job/22014713232
(log contains output of cygcheck gcc)
...Some more attempts later, I see this in config.log when my container
has a *minimal* set of packages installed. Missing -liconv. Apparently
iconv is a dependency of some other packages in my full build.
configure:4330: checking whether the C compiler works
configure:4352: gcc conftest.c >&5
/usr/lib/gcc/x86_64-pc-cygwin/13/../../../../x86_64-pc-cygwin/bin/ld: cannot
find -liconv: No such file or directory
collect2: error: ld returned 1 exit status
I understand that I can manually install additional packages.
My question is that if I install gcc test package via
& C:\setup.exe -qgnO -t | Out-Default
shouldn't setup.exe should also install the appropriate dependencies
in order for the updated gcc to work?
My container had a working gcc 11.4.0 prior to
& C:\setup.exe -qgnO -t | Out-Default
and has a broken gcc 13.2.1 after the update.
After reconfiguring the container to use my original set of packages
(minus libintl-devel):
configure:4330: checking whether the C compiler works
configure:4352: gcc conftest.c >&5
/usr/lib/gcc/x86_64-pc-cygwin/13/../../../../x86_64-pc-cygwin/bin/ld: cannot
find -lintl: No such file or directory
collect2: error: ld returned 1 exit status
Adding back libintl-devel and things work again.
https://github.com/lighttpd/lighttpd1.4/blob/master/.github/workflows/ci.yml
Cheers, Glenn
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