Provide a second optional argument to PKG_PROG_PKG_CONFIG with an action to
take if no pkgconf is found, and default to aborting.
Too many configure scripts in the wild don't handle an empty PKG_CONFIG,
resulting in weird error messages through the run, which often confuse
users.
Authors wishing to fallback to other methods can either return to the old
behavior by specifying [:] as an action, or use [PKG_CONFIG=false] and call
pkg-config macros normally, handling the fallback as any other failure.
Users can override PKG_CONFIG in the command line so this should imply no
regression.
Closes: https://github.com/pkgconf/pkgconf/issues/350
Ref: https://gitlab.freedesktop.org/pkg-config/pkg-config/-/issues/69
Signed-off-by: Ismael Luceno <ismael@iodev.co.uk>
This contains 3 changes, mostly inconsequential:
- fix some spelling issues in the comments
eb866ade77
- bump the serial number; upstream rationale is very 🤷 but it is
what it is:
> There aren't any significant changes here, but this will cause aclocal
> to get the latest version.
677e924875
- make the status log for PKG_CHECK_MODULES say "checking for <mod>..."
instead of "checking for <VAR>..."
3b96e7434c
There are additional whitespace-only changes that could be synced, and
were explicitly synced in commit 95b683c864f89ba5d2f02b0bbf8b07e0ffcecbce
but then undone in commit 360a818f2f2741a276f3acae6022b3d045e62f1f so
rather than fighting over it, are simply ignored. Diffing against the
freedesktop version of pkg.m4 will therefore show additional
inconsistencies.
Projects using PKG_CHECK_MODULES wants to add dependency versions to
their binaries. Currently, the projects have to resolve dependency
versions themselves when using pkgconf.
With this patch PKG_CHECK_MODULES now defines a $PKG_VERSION variable
that represents `--modversion`.
Currently the indentation in PKG_CHECK_MODULES is a mix och tabs and
spaces which makes it hard to read. This patch unifies the indentation
in the function to spaces.
* Update comments to reduce diffs against latest upstream (0.29.1).
* Clean up our comments to match the new upstream style.
* Update pkg.m4 to latest upstream version (0.29.1).
Some distros and users have unusual installation needs that don't
conform to the standard $libdir/pkgconfig and $datadir/pkgconfig
pathways. Help packagers support these users with the macros
PKG_INSTALLDIR and PKG_NOARCH_INSTALLDIR. These are simple macros that
provide the configure parameters --with-pkgconfigdir and
--with-noarch-pkgconfigdir to allow users to override the standard
locations.
Freedesktop #48743
The macros provide a succint way to run a pkg-config check over modules
depending on a --with-name configure option.
There is a flexible variant to have custom behaviour if the package is
found or not and two more limited ones that just set HAVE_NAME make and
preprocessor variables.
