Vít Ondruch wrote on 2020/11/13 17:46:
Dne 13. 11. 20 v 3:56 Pavel Valena napsal(a):
----- Original Message -----
From: "Pavel Valena" <pval...@redhat.com>
To: "Dan Čermák" <dan.cer...@cgc-instruments.com>
Cc: "Ruby SIG mailing list" <ruby-sig@lists.fedoraproject.org>
Sent: Thursday, November 5, 2020 8:30:25 PM
Subject: Re: Ruby 3.0
----- Original Message -----
From: "Dan Čermák" <dan.cer...@cgc-instruments.com>
To: "Vít Ondruch" <vondr...@redhat.com>
Cc: ruby-sig@lists.fedoraproject.org
Sent: Thursday, November 5, 2020 4:41:46 PM
Subject: Re: Ruby 3.0
Hi Vít,
Vít Ondruch <vondr...@redhat.com> writes:
Hi all,
Here is once again freshly updated Ruby. The changes are available here:
https://src.fedoraproject.org/rpms/ruby/pull-request/70
and you can find the scratch build in Koji:
https://koji.fedoraproject.org/koji/taskinfo?taskID=54978639
From the notable changes, there is ongoing effort to gemify StdLib.
As always, please let me know if you encounter any issues with the
package.
It seems I'm still not able to build gems like eventmachine:
I wonder what precisely is "gems like eventmachine"
https://download.copr.fedorainfracloud.org/results/pvalena/rubygems-testing/fedora-rawhide-x86_64/01767294-rubygem-eventmachine/builder-live.log.gz
https://copr.fedorainfracloud.org/coprs/pvalena/rubygems-testing/build/1767294/
Error I'm getting is
``` make: I.: No such file or directory ```
note the missing -
I think the issue is not in the `-` but in what is missing prior it. If you see
this line, isn't there something strange?
~~~
I. -I/usr/include -I/usr/include/ruby/backward -I/usr/include -I.
-DHAVE_OPENSSL_SSL_H -DHAVE_OPENSSL_ERR_H -DWITH_SSL -DBUILD_FOR_RUBY
-DHAVE_RB_THREAD_CALL_WITHOUT_GVL -DHAVE_RB_THREAD_FD_SELECT
-DHAVE_TYPE_RB_FDSET_T -DHAVE_RB_WAIT_FOR_SINGLE_FD -DHAVE_RB_TIME_NEW
-DHAVE_INOTIFY_INIT -DHAVE_INOTIFY -DHAVE_WRITEV -DHAVE_PIPE2 -DHAVE_ACCEPT4
-DHAVE_CONST_SOCK_CLOEXEC -DOS_UNIX -DHAVE_EPOLL_CREATE -DHAVE_EPOLL
-DHAVE_CLOCK_GETTIME -DHAVE_CONST_CLOCK_MONOTONIC_RAW
-DHAVE_CONST_CLOCK_MONOTONIC -fPIC -O2 -flto=auto -ffat-lto-objects
-fexceptions -g -grecord-gcc-switches -pipe -Wall -Werror=format-security
-Wp,-D_FORTIFY_SOURCE=2 -Wp,-D_GLIBCXX_ASSERTIONS
-specs=/usr/lib/rpm/redhat/redhat-hardened-cc1 -fstack-protector-strong
-specs=/usr/lib/rpm/redhat/redhat-annobin-cc1 -m64 -mtune=generic
-fasynchronous-unwind-tables -fstack-clash-protection -fcf-protection -m64 -o
binder.o -c binder.cpp
~~~
For comparison, the same line from last official Fedora build:
~~~
g++ -I. -I/usr/include -I/usr/include/ruby/backward -I/usr/include -I.
-DHAVE_OPENSSL_SSL_H -DHAVE_OPENSSL_ERR_H -DWITH_SSL -DBUILD_FOR_RUBY
-DHAVE_RB_THREAD_CALL_WITHOUT_GVL -DHAVE_RB_THREAD_FD_SELECT
-DHAVE_TYPE_RB_FDSET_T -DHAVE_RB_WAIT_FOR_SINGLE_FD -DHAVE_RB_TIME_NEW
-DHAVE_INOTIFY_INIT -DHAVE_INOTIFY -DHAVE_WRITEV -DHAVE_PIPE2 -DHAVE_ACCEPT4
-DHAVE_CONST_SOCK_CLOEXEC -DOS_UNIX -DHAVE_EPOLL_CREATE -DHAVE_EPOLL
-DHAVE_CLOCK_GETTIME -DHAVE_CONST_CLOCK_MONOTONIC_RAW
-DHAVE_CONST_CLOCK_MONOTONIC -DHAVE_MAKE_PAIR -fPIC -O2 -flto=auto
-ffat-lto-objects -fexceptions -g -grecord-gcc-switches -pipe -Wall
-Werror=format-security -Wp,-D_FORTIFY_SOURCE=2 -Wp,-D_GLIBCXX_ASSERTIONS
-specs=/usr/lib/rpm/redhat/redhat-hardened-cc1 -fstack-protector-strong
-specs=/usr/lib/rpm/redhat/redhat-annobin-cc1 -m64 -mtune=generic
-fasynchronous-unwind-tables -fstack-clash-protection -fcf-protection -m64 -o
binder.o -c binder.cpp
~~~
If you checked the Makefile, these are the corresponding lines:
~~~
.cpp.o:
$(ECHO) compiling $(<)
$(Q) $(CXX) $(INCFLAGS) $(CPPFLAGS) $(CXXFLAGS) $(COUTFLAG)$@ -c
$(CSRCFLAG)$<
~~~
And
~~~
CXX =
~~~
So one of the reasons is that we don't have C++ compiler available during Ruby
build and therefore there are not stored the appropriate values into RbConfig
(I mildly remember, that there could have been also patch to remove the need
for C++ or it was reported somewhere, but I don't remember more details).
The other reason is that somebody changed something somewhere and apparently
something relies on it. The question is what. I would appreciate if somebody
helped me to understand what have changed.
One could also expect, that the extconf.rb + mkmf would include check for
compiler availability and let the compilation fail earlier, but this is not the
case unfortunately. So if somebody could investigate, if eventmachine and
possibly also other package could check on compiler availability, that could
help to prevent non-obvious issues like this.
Checking the mkmf.log, it is also interesting to see, that most of the
configuration check are done using `gcc`, while there also other checks:
~~~
" -o conftest -I/usr/include -I/usr/include/ruby/backward -I/usr/include -I. -O2
-flto=auto -ffat-lto-objects -fexceptions -g -grecord-gcc-switches -pipe -Wall
-Werror=format-security -Wp,-D_FORTIFY_SOURCE=2 -Wp,-D_GLIBCXX_ASSERTIONS
-specs=/usr/lib/rpm/redhat/redhat-hardened-cc1 -fstack-protector-strong
-specs=/usr/lib/rpm/redhat/redhat-annobin-cc1 -m64 -mtune=generic
-fasynchronous-unwind-tables -fstack-clash-protection -fcf-protection conftest.c -L.
-L/usr/lib64 -L. -Wl,-z,relro -Wl,--as-needed -Wl,-z,now
-specs=/usr/lib/rpm/redhat/redhat-hardened-ld -fstack-protector-strong -rdynamic
-Wl,-export-dynamic -m64 -lssl -lcrypto -lcrypto -lssl -lruby -Wall -lm -lc"
checked program was:
/* begin */
1: #include "ruby.h"
2:
3: int main() {return 0;}
/* end */
~~~
They are missing the `gcc` on the beginning and they appears to be silently
ignored. But these corresponds to:
https://github.com/eventmachine/eventmachine/blob/b50c135dfdd4e7b20c8e0b7ce1d8fe7176d4d14d/ext/extconf.rb#L274
https://github.com/eventmachine/eventmachine/blob/b50c135dfdd4e7b20c8e0b7ce1d8fe7176d4d14d/ext/extconf.rb#L281
So these are somehow expected to fail, but they should probably fail in
different way.
Vít
So CONFIG["CXX"] is not yet set ( in /usr/lib64/ruby/rbconfig.rb on x86_64)
(see:
https://lists.fedoraproject.org/archives/list/ruby-sig@lists.fedoraproject.org/message/HJHP53TYDQ2NTWZB3WDNL6X4RCVYRAID/
) and still rubygem-eventmachine fails to find CXX compiler, while
rawhide ruby-libs rpm has CONFIG["CXX"] value.
Regards,
Mamoru
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