[MacPorts] #61052: rsync @3.2.2: segfault during build, seems to be SIMD related

[MacPorts]

#61052: rsync @3.2.2: segfault during build, seems to be SIMD related
-------------------------+--------------------
 Reporter:  herbygillot  |      Owner:  (none)
     Type:  defect       |     Status:  new
 Priority:  Normal       |  Milestone:
Component:  ports        |    Version:  2.6.3
 Keywords:               |       Port:  rsync
-------------------------+--------------------
 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.

-- 
Ticket URL: <https://trac.macports.org/ticket/61052>
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