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From: "ro at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug target/112864] New: [14 regression] Many libphobos tests FAIL
 on macOS 12+
Date: Tue, 05 Dec 2023 12:55:51 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D112864

            Bug ID: 112864
           Summary: [14 regression] Many libphobos tests FAIL on macOS 12+
           Product: gcc
           Version: 14.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: target
          Assignee: unassigned at gcc dot gnu.org
          Reporter: ro at gcc dot gnu.org
                CC: iains at gcc dot gnu.org, ibuclaw at gcc dot gnu.org
  Target Milestone: ---
            Target: x86_64-apple-darwin2[1-3]

Between 20231013 and 20231027, all libphobos tests started to FAIL on macOS
12+:

FAIL: libphobos.aa/test_aa.d (test for excess errors)
Excess errors:
ld: warning: duplicate -rpath
'/private/var/gcc/regression/master/14-gcc/build/x86_64-apple-darwin23.1.0/=
libphobos/src'
ignored

The duplication can be seen in the log:

Executing on host: /var/gcc/regression/master/14-gcc/build/./gcc/gdc
-B/var/gcc/regression/master/14-gcc/build/./gcc/
-B/vol/gcc/x86_64-apple-darwin23.1.0/bin/
-B/vol/gcc/x86_64-apple-darwin23.1.0/lib/ -isystem
/vol/gcc/x86_64-apple-darwin23.1.0/include -isystem
/vol/gcc/x86_64-apple-darwin23.1.0/sys-include -fchecking=3D1 -fmessage-len=
gth=3D0
-fno-show-column -Wall -g -O2 -fversion=3DShared -fall-instantiations
-fpreview=3Ddip1000 -fno-release -funittest -nostdinc
-B/var/gcc/regression/master/14-gcc/build/x86_64-apple-darwin23.1.0/libphob=
os/src
-I/var/gcc/regression/master/14-gcc/build/x86_64-apple-darwin23.1.0/libphob=
os/libdruntime
-I/vol/gcc/src/hg/master/local/libphobos/libdruntime
-I/vol/gcc/src/hg/master/local/libphobos/src=20
/vol/gcc/src/hg/master/local/libphobos/testsuite/libphobos.aa/test_aa.d=20=
=20=20=20
-fno-diagnostics-show-caret -fdiagnostics-color=3Dnever
-B/var/gcc/regression/master/14-gcc/build/x86_64-apple-darwin23.1.0/libphob=
os/src
-B/var/gcc/regression/master/14-gcc/build/x86_64-apple-darwin23.1.0/libphob=
os/libdruntime/gcc
-B/var/gcc/regression/master/14-gcc/build/x86_64-apple-darwin23.1.0/libphob=
os/src/.libs
-L/var/gcc/regression/master/14-gcc/build/x86_64-apple-darwin23.1.0/libphob=
os/src/.libs
 -lm  -o ./test_aa.exe    (timeout =3D 1200)

where there are three instances of -B.../libphobos/src.

PR target/112863 shows a similar issue.=