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The test case that Autoconf uses to discover whether a function has been declared doesn't work reliably with clang, because clang reports a warning not an error if the name is a known built-in function. On some platforms, this results in a lot of compile-time warnings about strlcpy and related functions not having been declared. There is a fix for this (by Noah Misch) in the upstream Autoconf sources, but since they've not made a release in years and show no indication of doing so anytime soon, let's just absorb their fix directly. We can revert this when and if we update to a newer Autoconf release. Back-patch to all supported branches. Discussion: https://postgr.es/m/26819.1542515567@sss.pgh.pa.us |
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ac_func_accept_argtypes.m4 | ||
ax_pthread.m4 | ||
c-compiler.m4 | ||
c-library.m4 | ||
check_decls.m4 | ||
config.guess | ||
config.sub | ||
docbook.m4 | ||
general.m4 | ||
install-sh | ||
libtool.m4 | ||
Makefile | ||
missing | ||
perl.m4 | ||
prep_buildtree | ||
programs.m4 | ||
python.m4 | ||
tcl.m4 |