[cups-devel] [UNKN] STR #4423: Please use AC_PATH_TOOL to find proper *-config programs

[Michal Gorny]

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[STR New]

Currently CUPS configure script uses AC_PATH_PROG macro to find *-config
tools such as pkg-config and krb5-config. This has disadvantage that on
systems suited for building multiple variants of packages (such as multilib
or cross-compilation) the wrong *-config tool is selected.

The correct macro to use for querying *-config tools is AC_PATH_TOOL. It
prefers tools prefixed with ${CHOST}- to facilitate cross-compiling, and
fallbacks to plain name. Therefore, it fixes the issues we specifically
encounter in Gentoo while being compatible with existing behavior.

I'm attaching a patch. It applies cleanly both to 2.0 and 1.7 branch.

Link: https://www.cups.org/str.php?L4423
Version: 2.0-current
Attachment: https://www.cups.org/strfiles.php/3331/0001-Use-AC_PATH_TOOL-to-find-config-tools-to-facilitate-.patch
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