rsync @3.2.2: segfault during build, seems to be SIMD related

[herbygillot (Herby Gillot)]

macOS: 10.15.6 19G73 Xcode 11.6 11E708

Building rsync in a non-standard MacPorts prefix, compilation fails with a segmentation fault while compiling simd-checksum-x86_64.o:

` E_CONFIG_H -Wall -W -I/opt/macports-test/include -isysroot/Library/Developer/CommandLineTools/SDKs/MacOSX10.15.sdk -c flist.c -o flist.o clang: error: unable to execute command: Segmentation fault: 11 clang: error: clang frontend command failed due to signal (use -v to see invocation) Apple clang version 11.0.0 (clang-1100.0.33.17) Target: x86_64-apple-darwin19.6.0 Thread model: posix InstalledDir: /Library/Developer/CommandLineTools/usr/bin clang: note: diagnostic msg: PLEASE submit a bug report to ​http://developer.apple.com/bugreporter/ and include the crash backtrace, preprocessed source, and associated run script. clang: note: diagnostic msg:

PLEASE ATTACH THE FOLLOWING FILES TO THE BUG REPORT: Preprocessed source(s) and associated run script(s) are located at: clang: note: diagnostic msg: /opt/macports-test/var/macports/build/_Users_herby_Source_macports-ports_net_rsync/rsync/work/.tmp/simd-checksum-x86_64-1b895c.cpp clang: note: diagnostic msg: /opt/macports-test/var/macports/build/_Users_herby_Source_macports-ports_net_rsync/rsync/work/.tmp/simd-checksum-x86_64-1b895c.sh clang: note: diagnostic msg: Crash backtrace is located in clang: note: diagnostic msg: /opt/macports-test/var/macports/build/_Users_herby_Source_macports-ports_net_rsync/rsync/work/.home/Library/Logs/DiagnosticReports/clang_<YYYY-MM-DD-HHMMSS>_<hostname>.crash clang: note: diagnostic msg: (choose the .crash file that corresponds to your crash) clang: note: diagnostic msg:

If you can't fix the issue, re-run ./configure with --disable-simd. make: * [simd-checksum-x86_64.o] Error 1 make: * Waiting for unfinished jobs.... make: Leaving directory `/opt/macports-test/var/macports/build/_Users_herby_Source_macports-ports_net_rsync/rsync/work/rsync-3.2.2' Command failed: cd "/opt/macports-test/var/macports/build/_Users_herby_Source_macports-ports_net_rsync/rsync/work/rsync-3.2.2" && /usr/bin/make -j16 -w all Exit code: 2 Error: Failed to build rsync: command execution failed DEBUG: Error code: CHILDSTATUS 64986 2 DEBUG: Backtrace: command execution failed

while executing

"system {*}$notty {*}$callback {*}$nice $fullcmdstring"

invoked from within

"command_exec -callback portprogress::target_progress_callback build"

(procedure "portbuild::build_main" line 8) invoked from within

"$procedure $targetname" Error: See /opt/macports-test/var/macports/logs/_Users_herby_Source_macports-ports_net_rsync/rsync/main.log for details. Error: Follow ​https://guide.macports.org/#project.tickets to report a bug. Error: Processing of port rsync failed `

After modifying the port build with SIMD disabled (added --disable-simd): ` configure.args --with-rsyncd-conf=${prefix}/etc/rsyncd.conf \

--disable-simd

`

...the port builds fine without issue.