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From: "redi at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
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Subject: [Bug libstdc++/103866] AM_PROG_LIBTOOL not compatible with
 GCC_NO_EXECUTABLES
Date: Fri, 31 Dec 2021 18:58:03 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D103866

--- Comment #9 from Jonathan Wakely <redi at gcc dot gnu.org> ---
GCC_HEADER_STDINT is unusable for freestanding, because it uses autoconf's
AC_CHECK_SIZEOF with the default includes, which does #include <stdio.h>
unconditionally.

But we only use GCC_HEADER_STDINT to create include/gstdint.h which is only
needed by src/c++11/compatibility-atomic-c++0x.cc, which could just use
<stdint.h> instead.

For now we can just make the use of GCC_HEADER_STDINT depend on $is_hosted,=
 but
I think we should just remove it eventually.=