Re: cygwin build

[Thomas Wolff <towo@towo.net>]

Am 06.08.2023 um 00:20 schrieb Takashi Yano:
> On Sat, 5 Aug 2023 20:18:43 +0200
> Thomas Wolff wrote:
>> Am 03.08.2023 um 15:12 schrieb Jon Turney:
>>> On 03/08/2023 09:21, Thomas Wolff wrote:
>>>> Am 02.08.2023 um 10:09 schrieb Corinna Vinschen:
>>>>> On Aug  2 08:36, Thomas Wolff wrote:
>>>>>> Am 01.08.2023 um 23:27 schrieb Corinna Vinschen:
>>>>>>> On Aug  1 23:05, Thomas Wolff wrote:
>>>>>>>> I took some of the latest cygwin snapshots (by the way, there are
>>>>>>>> no newer
>>>>>>>> ones on the snapshots page):
>>>>>>> Snapshots are no longer produced.  You should download the latest
>>>>>>> test versions via setup.
>>>>>> So what if I need an older version?
>>>>> It's all documented:
>>>>>
>>>>> https://cygwin.com/git.html
>>>>> https://cygwin.com/faq.html#faq.programming.building-cygwin
>>>> Thanks. Actually package mingw zlib was missing (when I installed it,
>>>> it got mistargeted to my parallel test installation).
>>>> It now worked, kind of, with some build errors after producing the dll.
>>> Nobody can take any useful action about those "build errors" if you
>>> keep them secret.
>>>
>> Sure, I just mentioned it and didn't post details as it wasn't essential
>> for the discussed issue. Anyway, here are the final error message I
>> often encounter:
>>
>> make[5]: Entering directory
>> '/cygdrive/c/tmp/newlib-cygwin/build/x86_64-pc-cygwin/winsup/utils'
>>     CXXLD    dumper.exe
>> /usr/lib/gcc/x86_64-pc-cygwin/11/../../../../x86_64-pc-cygwin/bin/ld:
>> /usr/lib/gcc/x86_64-pc-cygwin/11/../../../../lib/libbfd.a(compress.o):
>> in function `decompress_contents':
>> /usr/src/debug/binutils-2.41-1/bfd/compress.c:514:(.text+0x20d):
>> undefined reference to `ZSTD_decompress'
>> /usr/lib/gcc/x86_64-pc-cygwin/11/../../../../x86_64-pc-cygwin/bin/ld:
>> /usr/src/debug/binutils-2.41-1/bfd/compress.c:516:(.text+0x215):
>> undefined reference to `ZSTD_isError'
>> /usr/lib/gcc/x86_64-pc-cygwin/11/../../../../x86_64-pc-cygwin/bin/ld:
>> /usr/lib/gcc/x86_64-pc-cygwin/11/../../../../lib/libbfd.a(compress.o):
>> in function `bfd_compress_section_contents':
>> /usr/src/debug/binutils-2.41-1/bfd/compress.c:653:(.text+0x11e4):
>> undefined reference to `ZSTD_compress'
>> /usr/lib/gcc/x86_64-pc-cygwin/11/../../../../x86_64-pc-cygwin/bin/ld:
>> /usr/src/debug/binutils-2.41-1/bfd/compress.c:658:(.text+0x11f1):
>> undefined reference to `ZSTD_isError'
>> collect2: error: ld returned 1 exit status
>> make[5]: *** [Makefile:603: dumper.exe] Error 1
>> make[5]: Leaving directory
>> '/cygdrive/c/tmp/newlib-cygwin/build/x86_64-pc-cygwin/winsup/utils'
>> make[4]: *** [Makefile:872: all-recursive] Error 1
>> make[4]: Leaving directory
>> '/cygdrive/c/tmp/newlib-cygwin/build/x86_64-pc-cygwin/winsup/utils'
>> make[3]: *** [Makefile:512: all] Error 2
>> make[3]: Leaving directory
>> '/cygdrive/c/tmp/newlib-cygwin/build/x86_64-pc-cygwin/winsup/utils'
>> make[2]: *** [Makefile:395: all-recursive] Error 1
>> make[2]: Leaving directory
>> '/cygdrive/c/tmp/newlib-cygwin/build/x86_64-pc-cygwin/winsup'
>> make[1]: *** [Makefile:9464: all-target-winsup] Error 2
>> make[1]: Leaving directory '/cygdrive/c/tmp/newlib-cygwin/build'
>> make: *** [Makefile:883: all] Error 2
> That happened to me before.
>
> Install libzstd-devel.
> Remove
> ./etc/config.cache
> ./x86_64-pc-cygwin/newlib/config.cache
> ./x86_64-pc-cygwin/winsup/config.cache
> Re-run ./configure && make.
Yes, thanks, that dependency is missing in the FAQ.