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From: "cvs-commit at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org> To: gcc-bugs@gcc.gnu.org Subject: [Bug libstdc++/103166] [12 regression] wrong dependency on getentropy on newlib-based targets Date: Sat, 13 Nov 2021 00:46:42 +0000 [thread overview] Message-ID: <bug-103166-4-KLesruFDmf@http.gcc.gnu.org/bugzilla/> (raw) In-Reply-To: <bug-103166-4@http.gcc.gnu.org/bugzilla/> https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103166 --- Comment #7 from CVS Commits <cvs-commit at gcc dot gnu.org> --- The master branch has been updated by Hans-Peter Nilsson <hp@gcc.gnu.org>: https://gcc.gnu.org/g:60f761c7e54f96a287c73a71d0b09ee2b2f8426d commit r12-5220-g60f761c7e54f96a287c73a71d0b09ee2b2f8426d Author: Hans-Peter Nilsson <hp@axis.com> Date: Fri Nov 12 18:04:43 2021 +0100 libstdc++: Use GCC_TRY_COMPILE_OR_LINK for getentropy, arc4random Since r12-5056-g3439657b0286, there has been a regression in test results; an additional 100 FAILs running the g++ and libstdc++ testsuite on cris-elf, a newlib target. The failures are linker errors, not finding a definition for getentropy. It appears newlib has since 2017-12-03 declarations of getentropy and arc4random, and provides an implementation of arc4random using getentropy, but provides no definition of getentropy, not even a stub yielding ENOSYS. This is similar to what it does for many other functions too. While fixing newlib (like adding said stub) would likely help, it still leaves older newlib releases hanging. Thankfully, the libstdc++ configury test can be improved to try linking where possible; using the bespoke GCC_TRY_COMPILE_OR_LINK instead of AC_TRY_COMPILE. BTW, I see a lack of consistency; some tests use AC_TRY_COMPILE and some GCC_TRY_COMPILE_OR_LINK for no apparent reason, but this commit just amends r12-5056-g3439657b0286. libstdc++-v3: PR libstdc++/103166 * acinclude.m4 (GLIBCXX_CHECK_GETENTROPY, GLIBCXX_CHECK_ARC4RANDOM): Use GCC_TRY_COMPILE_OR_LINK instead of AC_TRY_COMPILE. * configure: Regenerate.
next prev parent reply other threads:[~2021-11-13 0:46 UTC|newest] Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top 2021-11-10 9:05 [Bug libstdc++/103166] New: " clyon at gcc dot gnu.org 2021-11-10 9:33 ` [Bug libstdc++/103166] " pinskia at gcc dot gnu.org 2021-11-10 9:43 ` redi at gcc dot gnu.org 2021-11-11 2:35 ` sandra at gcc dot gnu.org 2021-11-12 17:15 ` hp at gcc dot gnu.org 2021-11-12 19:02 ` redi at gcc dot gnu.org 2021-11-12 20:25 ` hp at gcc dot gnu.org 2021-11-13 0:46 ` cvs-commit at gcc dot gnu.org [this message] 2021-11-13 0:50 ` hp at gcc dot gnu.org 2021-11-13 0:58 ` hp at gcc dot gnu.org 2023-03-07 10:24 ` clyon at gcc dot gnu.org 2023-03-07 11:20 ` redi at gcc dot gnu.org
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