[sr #110537] AC_SEARCH_LIBS does not honor --with-sysroot=

[anonyme]

URL:
  <https://savannah.gnu.org/support/?110537>

                 Summary: AC_SEARCH_LIBS does not honor --with-sysroot=
                 Project: Autoconf
            Submitted by: None
            Submitted on: jeu. 09 sept. 2021 16:46:10 UTC
                Category: None
                Priority: 5 - Normal
                Severity: 4 - Important
                  Status: None
                 Privacy: Public
             Assigned to: None
        Originator Email: calimeroteknik@free.fr
             Open/Closed: Open
         Discussion Lock: Any
        Operating System: None

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Details:

AC_SEARCH_LIBS in configure searches for libraries in the current system even
when --with-sysroot=/some/chroot/ is specified.

This is blocking cross-compilation of all software using autoconf and calling
AC_SEARCH_LIBS in configure.

Adding --sysroot=/some/chroot/ to CFLAGS and CXXFLAGS when running ./configure
clumsily circumvents the issue, as one would expect.

It comes to mind that quite possibly, AC_SEARCH_LIBS is not the only function
affected.

P.S.: bug discovered attempting to cross-compile libbsd 0.11.3




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