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 I am compiling mpich 4. 2. 0 on a MacBook Air Apple M1 running macOS Sonoma 14. 3. 1. I am using gcc and gfortran versions 13. 2. 0. I get the following errors when I build MPICH: /Applications/Xcode. app/Contents/Developer/usr/bin/make all-am depbase=`echo
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<div><span style="font-size:12px">I am compiling mpich 4.2.0 on a MacBook Air Apple M1 running macOS Sonoma 14.3.1.   I am using gcc and gfortran versions 13.2.0.   I get the following errors when I build MPICH:</span><br>
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<div><span style="font-family:Monaco; font-size:x-small">/Applications/Xcode.app/Contents/Developer/usr/bin/make  all-am</span></div>
<div><span style="font-family:Monaco; font-size:x-small">depbase=`echo util/info.o | sed 's|[^/]*$|.deps/&|;s|\.o$||'`;\</span></div>
<div><span class="x_Apple-tab-span" style="font-family:Monaco; white-space:pre"></span><span style="font-size:x-small; font-family:Monaco">gcc -DHAVE_CONFIG_H -I.  -I./include -D_GNU_SOURCE -D__USE_XOPEN2K8 -DSYSCONFDIR=\"/Users/douglasdommermuth/mpich2/mpich2-install/etc\"
 -DRDMADIR=\"@rdmadir@\" -DPROVDLDIR=\"/Users/douglasdommermuth/mpich2/mpich2-install/lib/libfabric\" -I./prov/sockets/include -I./prov/sockets   -Wall -O2 -DNDEBUG    -MT util/info.o -MD -MP -MF $depbase.Tpo -c -o util/info.o util/info.c &&\</span></div>
<div><span class="x_Apple-tab-span" style="font-family:Monaco; white-space:pre"></span><span style="font-size:x-small; font-family:Monaco">mv -f $depbase.Tpo $depbase.Po</span></div>
<div><span style="font-family:Monaco; font-size:x-small">In file included from ./include/osx/osd.h:182,</span></div>
<div><span style="font-family:Monaco; font-size:x-small">                 from ./include/ofi_osd.h:60,</span></div>
<div><span style="font-family:Monaco; font-size:x-small">                 from util/info.c:38:</span></div>
<div><span style="font-family:Monaco; font-size:x-small">/Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/usr/include/os/lock.h:114:33: error: expected declaration specifiers or ‘...’ before string constant</span></div>
<div><span style="font-family:Monaco; font-size:x-small">  114 | OS_SWIFT_UNAVAILABLE_FROM_ASYNC("Use OSAllocatedUnfairLock.performWhileLocked() for async-safe scoped locking")</span></div>
<div><span style="font-family:Monaco; font-size:x-small">      |                                 ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~</span></div>
<div><span style="font-family:Monaco; font-size:x-small">/Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/usr/include/os/lock.h:140:33: error: expected declaration specifiers or ‘...’ before string constant</span></div>
<div><span style="font-family:Monaco; font-size:x-small">  140 | OS_SWIFT_UNAVAILABLE_FROM_ASYNC("Use OSAllocatedUnfairLock.tryPerformWhileLocked() for async-safe scoped locking")</span></div>
<div><span style="font-family:Monaco; font-size:x-small">      |                                 ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~</span></div>
<div><span style="font-family:Monaco; font-size:x-small">/Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/usr/include/os/lock.h:154:33: error: expected declaration specifiers or ‘...’ before string constant</span></div>
<div><span style="font-family:Monaco; font-size:x-small">  154 | OS_SWIFT_UNAVAILABLE_FROM_ASYNC("Use OSAllocatedUnfairLock.performWhileLocked() for async-safe scoped locking")</span></div>
<div><span style="font-family:Monaco; font-size:x-small">      |                                 ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~</span></div>
<div><span style="font-family:Monaco; font-size:x-small">./include/osx/osd.h: In function ‘pthread_spin_lock’:</span></div>
<div><span style="font-family:Monaco; font-size:x-small">./include/osx/osd.h:194:9: warning: implicit declaration of function ‘os_unfair_lock_lock’ [-Wimplicit-function-declaration]</span></div>
<div><span style="font-family:Monaco; font-size:x-small">  194 |         os_unfair_lock_lock(lock);</span></div>
<div><span style="font-family:Monaco; font-size:x-small">      |         ^~~~~~~~~~~~~~~~~~~</span></div>
<div><span style="font-family:Monaco; font-size:x-small">./include/osx/osd.h: In function ‘pthread_spin_unlock’:</span></div>
<div><span style="font-family:Monaco; font-size:x-small">./include/osx/osd.h:200:9: warning: implicit declaration of function ‘os_unfair_lock_unlock’ [-Wimplicit-function-declaration]</span></div>
<div><span style="font-family:Monaco; font-size:x-small">  200 |         os_unfair_lock_unlock(lock);</span></div>
<div><span style="font-family:Monaco; font-size:x-small">      |         ^~~~~~~~~~~~~~~~~~~~~</span></div>
<div><span style="font-family:Monaco; font-size:x-small">./include/osx/osd.h: In function ‘pthread_spin_trylock’:</span></div>
<div><span style="font-family:Monaco; font-size:x-small">./include/osx/osd.h:206:16: warning: implicit declaration of function ‘os_unfair_lock_trylock’ [-Wimplicit-function-declaration]</span></div>
<div><span style="font-family:Monaco; font-size:x-small">  206 |         return os_unfair_lock_trylock(lock) ? 0 : EBUSY;</span></div>
<div><span style="font-family:Monaco; font-size:x-small">      |                ^~~~~~~~~~~~~~~~~~~~~~</span></div>
<div><span style="font-family:Monaco; font-size:x-small">make[3]: *** [util/info.o] Error 1</span></div>
<div><span style="font-family:Monaco; font-size:x-small">make[2]: *** [all] Error 2</span></div>
<div><span style="font-family:Monaco; font-size:x-small">make[1]: *** [all-recursive] Error 1</span></div>
<div><span style="font-family:Monaco; font-size:x-small">make: *** [all] Error 2</span></div>
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<span style="font-size:12px">It looks like errors in macOS’s command line tools.    I don’t know how to circumvent the problem.  Various text and  log files are attached in mpich2.tar.gz.   A copy of the lock.h code is also included in the zip file.</span><br>
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</span></font><span style="font-size:12px">Thank you, Doug.</span><br>
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