On Tue, Aug 20, 2019 at 05:37:58PM +0200, Florian Weimer wrote: > * Richard W. M. Jones: > > > As for why accept4 is being replaced at all, the only reference to it > > in config.log is: > > > > configure:25630: checking whether accept4 is declared > > configure:25630: gcc -c -O2 -g -pipe -Wall -Werror=format-security > > -Wp,-D_FORTIFY_SOURCE=2 -Wp,-D_GLIBCXX_ASSERTIONS -fexceptions > > -fstack-protector-strong -grecord-gcc-switches > > -specs=/usr/lib/rpm/redhat/redhat-hardened-cc1 > > -specs=/usr/lib/rpm/redhat/redhat-annobin-cc1 -m64 -mtune=generic > > -fasynchronous-unwind-tables -fstack-clash-protection -fcf-protection > > conftest.c >&5 > > configure:25630: $? = 0 > > configure:25630: result: yes > > What does the test program look like? Does it include <config.h>? > accept4 requires _GNU_SOURCE.
I'm not sure how to find out. However m4/accept.m4 (supplied by gnulib itself) does contain: dnl Persuade glibc <sys/socket.h> to declare accept4(). AC_REQUIRE([AC_USE_SYSTEM_EXTENSIONS]) so I guess the test *ought* to be using _GNU_SOURCE. Rich. -- Richard Jones, Virtualization Group, Red Hat http://people.redhat.com/~rjones Read my programming and virtualization blog: http://rwmj.wordpress.com libguestfs lets you edit virtual machines. Supports shell scripting, bindings from many languages. http://libguestfs.org
