https://bugs.kde.org/show_bug.cgi?id=473604
Bug ID: 473604
Summary: Fix bug472219.c compile failure with Clang 16
Classification: Developer tools
Product: valgrind
Version: 3.22 GIT
Platform: Ubuntu
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: memcheck
Assignee: jsew...@acm.org
Reporter: fanqu...@gmail.com
Target Milestone: ---
Created attachment 161091
--> https://bugs.kde.org/attachment.cgi?id=161091&action=edit
memcheck-fix-bug472219.c-compile-failure-under-Clang.patch
Compiling memcheck/tests/bug472219.c under clang (16.0.0) currently fails with:
bug472219.c:14:4: error: call to undeclared function 'ppoll'; ISO C99 and later
do not support implicit function declarations [-Wimplicit-function-declaration]
ppoll(fds, 2, &timeout, NULL);
^
bug472219.c:14:4: note: did you mean 'poll'?
/usr/include/x86_64-linux-gnu/sys/poll.h:54:12: clang -Winline -Wall -Wshadow
-Wno-long-long -g -fno-stack-protector -Wno-format-extra-args
-Wno-literal-range -Wno-tautological-constant-out-of-range-compare
-Wno-self-assign -Wno-string-plus-int -Wno-uninitialized -Wno-unused-value
-m64 -o err_disable2 err_disable2.o
note: 'poll' declared here
extern int poll (struct pollfd *__fds, nfds_t __nfds, int __timeout)
^
1 error generated.
Adding the missing _GNU_SOURCE define (patch attached) fixes the issue.
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