Comments (3)
michael-grunder
commented on August 24, 2024
I can't replicate this. What version of GCC are you using? It compiles without warning for me using gcc-10, gcc-11, and gcc-13.
$ uname -a
Linux cthulhu 5.15.0-52-generic #58-Ubuntu SMP Thu Oct 13 08:03:55 UTC 2022 x86_64 x86_64 x86_64 GNU/Linuxfrom ck.
ConiKost
commented on August 24, 2024
Did you add -Werror=strict-aliasing to your CFLAGS? I am using GCC-13.
Linux Galactica 6.0.7-gentoo #1 SMP PREEMPT_DYNAMIC Sun Nov 6 14:26:32 CET 2022 x86_64 GNU/Linux
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michael-grunder
commented on August 24, 2024
Apologies, I can replicate it.
It didn't throw an error when I tried compiling the single file.
gcc -D_XOPEN_SOURCE=600 -D_BSD_SOURCE -D_DEFAULT_SOURCE -std=gnu99 -pedantic -Wall -W -Wundef -Wendif-labels -Wshadow -Wpointer-arith -Wcast-align -Wcast-qual -Wwrite-strings -Wstrict-prototypes -Wmissing-prototypes -Wnested-externs -Winline -Wdisabled-optimization -fstrict-aliasing -O2 -pipe -Wno-parentheses -O2 -pipe -march=x86-64 -frecord-gcc-switches -fno-diagnostics-color -fmessage-length=0 -flto -Werror=odr -Werror=lto-type-mismatch -Werror=strict-aliasing -fPIC -I../../../include -DCORES=48 -m64 -D__x86_64__ -D_GNU_SOURCE -o ck_pr_bin ck_pr_bin.cBut doing:
CFLAGS="-Wstrict-aliasing -Werror=strict-aliasing" ./configure && make regressions
does reproduce the same error for me.
Edit: If it's helpful it's also possible to get the warning but still compile the code with -Wstrict-aliasing=3
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Related Issues (20)
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