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be55899b71
Most samples cannot be build on some environments because they depend
on CC_CAN_LINK, which is set according to the result of
scripts/cc-can-link.sh called by cc_can_link_user.
Because cc-can-link.sh must now build without warning, it may fail
because it is calling printf() with an empty string:
+ cat
+ gcc -m32 -Werror -Wl,--fatal-warnings -x c - -o /dev/null
<stdin>: In function ‘main’:
<stdin>:4:9: error: zero-length gnu_printf format string [-Werror=format-zero-length]
cc1: all warnings being treated as errors
Fix this warning and the samples build by actually printing something.
Cc: stable@vger.kernel.org
Fixes: d81d9d389b ("kbuild: don't enable CC_CAN_LINK if the dummy program generates warnings")
Signed-off-by: Mickaël Salaün <mic@digikod.net>
Reviewed-by: Nicolas Schier <nsc@kernel.org>
Reviewed-by: Thomas Weißschuh <thomas.weissschuh@linutronix.de>
Link: https://patch.msgid.link/20260212133544.1331437-1-mic@digikod.net
Signed-off-by: Nathan Chancellor <nathan@kernel.org>
11 lines
197 B
Bash
Executable file
11 lines
197 B
Bash
Executable file
#!/bin/sh
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# SPDX-License-Identifier: GPL-2.0
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cat << "END" | $@ -Werror -Wl,--fatal-warnings -x c - -o /dev/null >/dev/null 2>&1
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#include <stdio.h>
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int main(void)
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{
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printf("\n");
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return 0;
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}
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END
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