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From: "haochen.jiang at intel dot com" <gcc-bugzilla@gcc.gnu.org> To: gcc-bugs@gcc.gnu.org Subject: [Bug fortran/102826] New: Glibc "--disable-mathvec" configure option fail to disable traces to libmvec Date: Tue, 19 Oct 2021 02:13:33 +0000 [thread overview] Message-ID: <bug-102826-4@http.gcc.gnu.org/bugzilla/> (raw) https://gcc.gnu.org/bugzilla/show_bug.cgi?id=102826 Bug ID: 102826 Summary: Glibc "--disable-mathvec" configure option fail to disable traces to libmvec Product: gcc Version: 12.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: fortran Assignee: unassigned at gcc dot gnu.org Reporter: haochen.jiang at intel dot com Target Milestone: --- When I build Glibc with "--disable-mathvec" and run through this simple testcase: program test_overloaded_intrinsic real(4) :: x4(3200), y4(3200) real(8) :: x8(3200), y8(3200) y4 = sin(x4) print *, y4 end It reports error: undefined reference to `_ZGVeN8v_sin' It is trying to find libmvec functions, while because of the disabling, libmvec.so will not be generated. When I go through gcc file. In gcc/config/gnu-user.h Line 156, we have: #undef TARGET_F951_OPTIONS #define TARGET_F951_OPTIONS "%{!nostdinc:\ %:fortran-preinclude-file(-fpre-include= math-vector-fortran.h finclude%s/)}" , which is maybe the cause of the error. Because when I clear that math-vector-fortran.h, the testcase will pass.
next reply other threads:[~2021-10-19 2:13 UTC|newest] Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top 2021-10-19 2:13 haochen.jiang at intel dot com [this message] 2021-10-19 2:30 ` [Bug fortran/102826] " pinskia at gcc dot gnu.org 2021-10-19 2:57 ` pinskia at gcc dot gnu.org 2021-10-19 5:08 ` haochen.jiang at intel dot com 2021-10-22 21:46 ` pinskia at gcc dot gnu.org
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