143895 2006-08-14 09:47 0000 perl, libperl gets screwed by -fsched2-use-superblocks; a case for flag-o-matic? 2006-08-15 09:23:41 0000 1 1 1 Unclassified Gentoo Linux Core system 2006.0 x86 Linux RESOLVED FIXED P1 enhancement --- 1 sg313d@gmail.com perl@gentoo.org jakub@gentoo.org sg313d@gmail.com 2006-08-14 09:47:00 0000 perl and libperl don't like the optimization flag -fsched2-use-superblocks in conjunction with -O2 or higher on gcc-4.1.1. This causes perl 'require vX.Y.Z' to fail for versions ending with .0 (Z=0), for example a perl-5.8.8 installation exit with an error from perl -e 'require v5.6.0'; On gcc-3.4.6 these malfunctions couldn't be observed. Description: The optimization damages loop code in str_to_version. As a consequence the command >>perl -e require 'vX.Y.0'<< will fail for any values of X,Y; This seems to be version of a (well) known bug on gcc-bugzilla. They closed it as wontfix. See http://gcc.gnu.org/bugzilla/show_bug.cgi?id=323 for details. If are convinced that this is a another bug, feel free to file it at the gcc-bugzilla. Steps to reproduce: 1. Compile libperl/perl >= 5.8 with gcc-4.1.1, -O2 & -fsched2-use-superblocks. 2. perl -e 'require 5.6.0' -> Will abort with error (!) Proposed solution: This can be easyly circumvented by using flag-o-matic to strip -fsched2-use-superblocks from CFLAGS. Patches for perl and libperl ebuilds are attached. sg313d@gmail.com 2006-08-14 09:51:42 0000 Created an attachment (id=94253) Filters -fsched2-use-superblocks for perl s.o. sg313d@gmail.com 2006-08-14 09:52:32 0000 Created an attachment (id=94254) Filters -fsched2-use-superblocks for libperl s.o. jakub@gentoo.org 2006-08-14 10:23:34 0000 Quite frankly, we really have better things to do that to filter whatever ultraweird flag that someone has stuck into his flags for whatever reason. How about that you filter it yourself? sg313d@gmail.com 2006-08-14 10:41:32 0000 The report was not meant to be an offense. Discard it if you want; I just wanted to share the solution. ian@gentoo.org 2006-08-15 06:48:59 0000 Fixed in cvs. sg313d@gmail.com 2006-08-15 09:23:41 0000 Thanks! 94253 2006-08-14 09:51 0000 Filters -fsched2-use-superblocks for perl perl-5.8.8-r2.ebuild.patch text/plain LS0tIC91c3IvcG9ydGFnZS9kZXYtbGFuZy9wZXJsL3BlcmwtNS44LjgtcjIuZWJ1aWxkCTIwMDYt MDgtMTMgMTM6MzY6MjcuMDAwMDAwMDAwICswMjAwCisrKyBwZXJsLTUuOC44LXIzLmVidWlsZAky MDA2LTA4LTE0IDE4OjQ4OjE5LjAwMDAwMDAwMCArMDIwMApAQCAtMTQxLDYgKzE0MSw4IEBACiAJ dXNlIGVsaWJjX3VjbGliYyB8fCByZXBsYWNlLWZsYWdzICItT3MiICItTzIiCiAJIyBUaGlzIGZs YWcgbWFrZXMgY29tcGlsaW5nIGNyYXNoIGluIGludGVyZXN0aW5nIHdheXMKIAlmaWx0ZXItZmxh Z3MgLW1hbGlnbi1kb3VibGUKKwkjIEZpeGVzIGJ1ZyAjMTQzODk1IG9uIGdjYy00LjEuMQorCWZp bHRlci1mbGFncyAiLWZzY2hlZDItdXNlLXN1cGVyYmxvY2tzIgogCSMgRml4ZXMgYnVnICM5NzY0 NQogCXVzZSBwcGMgJiYgZmlsdGVyLWZsYWdzIC1tcG93ZXJwYy1ncG9wdAogCg== 94254 2006-08-14 09:52 0000 Filters -fsched2-use-superblocks for libperl libperl-5.8.8-r1.ebuild.patch text/plain LS0tIC91c3IvcG9ydGFnZS9zeXMtZGV2ZWwvbGlicGVybC9saWJwZXJsLTUuOC44LXIxLmVidWls ZAkyMDA2LTA3LTAyIDIyOjA2OjIyLjAwMDAwMDAwMCArMDIwMAorKysgbGlicGVybC01LjguOC1y Mi5lYnVpbGQJMjAwNi0wOC0xNCAxODo0OToxMy4wMDAwMDAwMDAgKzAyMDAKQEAgLTE2Miw2ICsx NjIsOCBAQAogCXVzZSBlbGliY191Y2xpYmMgfHwgcmVwbGFjZS1mbGFncyAiLU9zIiAiLU8yIgog CSMgVGhpcyBmbGFnIG1ha2VzIGNvbXBpbGluZyBjcmFzaCBpbiBpbnRlcmVzdGluZyB3YXlzCiAJ ZmlsdGVyLWZsYWdzICItbWFsaWduLWRvdWJsZSIKKwkjIFRoaXMgZml4ZXMgYnVnICMxNDM4OTUg b24gZ2NjLTQuMS4xCisJZmlsdGVyLWZsYWdzICItZnNjaGVkMi11c2Utc3VwZXJibG9ja3MiCiAJ IyBGaXhlcyBidWcgIzk3NjQ1CiAJdXNlIHBwYyAmJiBmaWx0ZXItZmxhZ3MgLW1wb3dlcnBjLWdw b3B0CiAK