From: Sam James <sam@gentoo.org>
To: bug-texinfo@gnu.org
Cc: Gnulib bugs <bug-gnulib@gnu.org>
Subject: -Wlto-type-mismatch warning in error()
Date: Wed, 7 Dec 2022 20:57:45 +0000 [thread overview]
Message-ID: <D666386E-B8DE-4B99-AEF6-6F24A4B97441@gentoo.org> (raw)
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Hi,
Compiling texinfo 7.0.1 with CFLAGS="-O2 -flto -Werror=lto-type-mismatch" results
in the following:
```
make[3]: Entering directory '/var/tmp/portage/sys-apps/texinfo-7.0.1/work/texinfo-7.0.1/install-info'
x86_64-pc-linux-gnu-gcc -DHAVE_CONFIG_H -I. -I.. -I.. -I../gnulib/lib -I../gnulib/lib -DLOCALEDIR=\"/usr/share/locale\" -O2 -flto -Werror=lto-type-mismatch -O2 -flto -Werror=lto-type-mismatch -ggdb3 -Werror=implicit-function-declaration -Werror=implicit-int -c -o install-info.o install-info.c
x86_64-pc-linux-gnu-gcc -O2 -flto -Werror=lto-type-mismatch -O2 -flto -Werror=lto-type-mismatch -ggdb3 -Werror=implicit-function-declaration -Werror=implicit-int -Wl,-O1 -Wl,--as-needed -Wl,--defsym=__gentoo_check_ldflags__=0 -Wl,-z,pack-relative-relocs -o ginstall-info install-info.o ../gnulib/lib/libgnu.a
../gnulib/lib/error.h:33:13: error: type of ‘error’ does not match original declaration [-Werror=lto-type-mismatch]
33 | extern void error (int __status, int __errnum, const char *__format, ...)
| ^
install-info.c:218:1: note: type mismatch in parameter 1
218 | error (const char *fmt, ...)
| ^
install-info.c:218:1: note: ‘error’ was previously declared here
install-info.c:218:1: note: code may be misoptimized unless ‘-fno-strict-aliasing’ is used
lto1: some warnings being treated as errors
lto-wrapper: fatal error: //usr/bin/x86_64-pc-linux-gnu-gcc returned 1 exit status
compilation terminated.
/usr/lib/gcc/x86_64-pc-linux-gnu/12/../../../../x86_64-pc-linux-gnu/bin/ld: error: lto-wrapper failed
collect2: error: ld returned 1 exit status
make[3]: *** [Makefile:1514: ginstall-info] Error 1
```
This is with GCC 12.2.1 20221203.
We've also seen this in GNU make, so not sure if it's a
gnulib problem or not, as it may be in lib/error.h (hence CCing bug-gnulib):
- https://bugs.gentoo.org/863713 (texinfo)
- https://bugs.gentoo.org/863824 (make)
Best,
sam
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next reply other threads:[~2022-12-07 20:58 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-12-07 20:57 Sam James [this message]
2022-12-07 21:10 ` -Wlto-type-mismatch warning in error() Arsen Arsenović
2022-12-07 21:37 ` Gavin Smith
2022-12-08 0:21 ` Bruno Haible
2022-12-08 6:16 ` Eli Zaretskii
2022-12-08 8:25 ` Arsen Arsenović via Gnulib discussion list
2022-12-08 10:55 ` Eli Zaretskii
2022-12-08 11:31 ` Arsen Arsenović
2022-12-08 19:00 ` namespacing issues with Gnulib Bruno Haible
2022-12-08 20:10 ` Eli Zaretskii
2022-12-08 20:19 ` Arsen Arsenović
2022-12-08 20:54 ` Paul Eggert
2022-12-10 1:48 ` -Wlto-type-mismatch warning in error() Gavin Smith
2022-12-10 1:50 ` Gavin Smith
2022-12-10 21:42 ` Paul Eggert
2022-12-11 4:24 ` Jeffrey Walton
2022-12-09 12:00 ` Florian Weimer
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