postgresql/aclocal.m4
Tom Lane 16fbac39ff Fix configure's AC_CHECK_DECLS tests to work correctly with clang.
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
2018-11-19 12:01:47 -05:00

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dnl aclocal.m4
m4_include([config/ac_func_accept_argtypes.m4])
m4_include([config/ax_prog_perl_modules.m4])
m4_include([config/ax_pthread.m4])
m4_include([config/c-compiler.m4])
m4_include([config/c-library.m4])
m4_include([config/check_decls.m4])
m4_include([config/docbook.m4])
m4_include([config/general.m4])
m4_include([config/libtool.m4])
m4_include([config/llvm.m4])
m4_include([config/perl.m4])
m4_include([config/pkg.m4])
m4_include([config/programs.m4])
m4_include([config/python.m4])
m4_include([config/tcl.m4])