Public bug reported:
I got a elfutils-0.178
glibc provides two different signatures for strerror_r. One is GNU-specific and
it is not portable.
The other is
int strerror_r(int errnum, char *buf, size_t buflen);
/* XSI-compliant */
char *strerror_r(int errnum, char *buf, size_t buflen);
/* GNU-specific */
man strerror(3) says:
The XSI-compliant strerror_r() is preferred for portable
applications. It returns the error string in the user-supplied buffer
buf of length buflen.
musl implements strerror_r as XSI-compliant version while elfutils uses
GNU-specific variant.
The solution should not simply ignore strerror_r return value as it
would break build when -Werror=unused-result is set.
An alternative is to do something like:
https://github.com/luizluca/openwrt/blob/a79698fefdd9dacb84865c870bf75aee978c005d/package/libs/elfutils/patches/100
-musl-compat.patch#L51
** Affects: elfutils (Ubuntu)
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/1857099
Title:
strerror_r used as non-portable format
Status in elfutils package in Ubuntu:
New
Bug description:
I got a elfutils-0.178
glibc provides two different signatures for strerror_r. One is GNU-specific
and it is not portable.
The other is
int strerror_r(int errnum, char *buf, size_t buflen);
/* XSI-compliant */
char *strerror_r(int errnum, char *buf, size_t buflen);
/* GNU-specific */
man strerror(3) says:
The XSI-compliant strerror_r() is preferred for portable
applications. It returns the error string in the user-supplied buffer
buf of length buflen.
musl implements strerror_r as XSI-compliant version while elfutils
uses GNU-specific variant.
The solution should not simply ignore strerror_r return value as it
would break build when -Werror=unused-result is set.
An alternative is to do something like:
https://github.com/luizluca/openwrt/blob/a79698fefdd9dacb84865c870bf75aee978c005d/package/libs/elfutils/patches/100
-musl-compat.patch#L51
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https://bugs.launchpad.net/ubuntu/+source/elfutils/+bug/1857099/+subscriptions
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