[bug #64806] "invalid output sync mutex" on windows

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Follow-up Comment #35, bug #64806 (group make):=0A=0AHi, is it possible tha=
t the sync mutex output issue happens in _w32os.c_ in=0Amethod _osync_get_m=
utex_, when you do:=0A=0A=0Asprintf (mutex, "0x%Ix", (unsigned long long)(D=
WORD_PTR)osync_handle);=0A=0A=0ABecause: "%I" is Microsoft specific. See=0A=
https://learn.microsoft.com/en-us/cpp/c-runtime-library/format-specificatio=
n-syntax-printf-and-wprintf-functions?view=3Dmsvc-170=0AThere they say:=0A>=
 Microsoft-specific: The I (uppercase i), I32, I64, and w argument size=0A>=
 modifier prefixes are Microsoft extensions and are not ISO C-compatible. =
=0A=0ASo the issue could be that in none-MSVC-compiler settings (looking at=
 mingw),=0Athe %I is interpreted as something else and thus results in a st=
ring that is=0Asimply wrong - like the garbage string shown below.=0A=0AI c=
ome to that conclusion, because I am running on mingw (via MSYS) and I get=
=0Aa similar issue.=0AAnd when I run with _--debug=3Dv_, I get=0A=0A=0ARead=
ing makefile 'Makefile'...=0AUsing jobserver controller gmake_semaphore_341=
60=0AUsing output-sync mutex=0AUpdating makefiles....=0A=0A=0ASo in the pla=
ce where it should print the mutex hex number I get nothing. Not=0Athe same=
 as the "=EF=BF=BD*V8=EF=BF=BD=02" below, but close enough.=0A=0ARelated: m=
y bug report at msys2/MINGW-packages:=0Ahttps://github.com/msys2/MINGW-pack=
ages/issues/29218=0A=0A=0A=0A    __________________________________________=
_____________=0A=0AReply to this item at:=0A=0A  <https://savannah.gnu.org/=
bugs/?64806>=0A=0A_______________________________________________=0AMessage=
 sent via Savannah=0Ahttps://savannah.gnu.org/=0A
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