From: Petr Vorel <pvorel@suse.cz>
To: ltp@lists.linux.it
Subject: [LTP] LTP compilation broken with -fno-common
Date: Wed, 1 Apr 2020 10:32:28 +0200 [thread overview]
Message-ID: <20200401083228.GA18685@dell5510> (raw)
Hi,
LTP compilation breaks with -fno-common (we don't use as the default).
This is the default for GCC 10, is there a way to fix it or do we need to disable it?
Compilation on gcc-10 (or gcc-9 with CFLAGS="-fno-common":
gcc-9 -Werror=implicit-function-declaration -fno-common -g -O2 -fno-strict-aliasing -pipe -Wall -W -Wold-style-definition -W -I../../include -I../../include -I../../include/old/ -L../../lib tst_checkpoint_wait_timeout.c -lltp -o tst_checkpoint_wait_timeout
/usr/lib64/gcc/x86_64-suse-linux/9/../../../../x86_64-suse-linux/bin/ld: ../../lib/libltp.a(tst_test.o):ltp.git/lib/../include/tst_test.h:325: multiple definition of `TCID'; /tmp/cc49yYO6.o:ltp.git/lib/tests/tst_strsig.c:27: first defined here
/usr/lib64/gcc/x86_64-suse-linux/9/../../../../x86_64-suse-linux/bin/ld: ../../lib/libltp.a(tst_sys_conf.o):ltp.git/lib/../include/tst_test.h:325: multiple definition of `TCID'; /tmp/cc49yYO6.o:ltp.git/lib/tests/tst_strsig.c:27: first defined here
It's somehow related to the "hack" in include/tst_test.h:
/*
* This is a hack to make the testcases link without defining TCID
*/
extern const char *TCID;
Kind regards,
Petr
next reply other threads:[~2020-04-01 8:32 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-04-01 8:32 Petr Vorel [this message]
2020-04-01 9:16 ` [LTP] LTP compilation broken with -fno-common Richard Palethorpe
2020-04-01 9:39 ` Cyril Hrubis
2020-04-01 9:55 ` Martin Doucha
2020-04-01 9:58 ` Cyril Hrubis
2020-04-01 10:04 ` Martin Doucha
2020-04-01 10:15 ` Petr Vorel
2020-04-01 10:50 ` Cyril Hrubis
2020-04-01 11:42 ` Martin Doucha
2020-04-01 12:01 ` Cyril Hrubis
2020-04-01 10:14 ` Petr Vorel
2020-04-09 7:45 ` Petr Vorel
2020-04-09 9:18 ` Cyril Hrubis
2020-04-09 10:06 ` Li Wang
2020-04-15 7:00 ` Petr Vorel
2020-04-15 10:19 ` [LTP] hugemmap01 warnings with -i [was Re: LTP compilation broken with -fno-common] Petr Vorel
2020-04-16 9:13 ` Li Wang
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