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README: update to where we are at in 2014

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William Pitcock 2014-07-09 02:25:01 -05:00
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@ -5,23 +5,30 @@ pkgconf provides compiler and linker configuration for development frameworks.
## general summary ## general summary
pkgconf is a program which helps to configure compiler and linker flags for pkgconf is a program which helps to configure compiler and linker flags for
development frameworks. It is similar to pkg-config, but was written from development frameworks.
scratch in the summer of 2011 to replace pkg-config, which now needs itself to
build itself (or you can set a bunch of environment variables, both are It is similar to pkg-config, but was written from scratch in the summer of 2011
pretty ugly). to replace pkg-config, which for a while needed itself to build itself (they have
since included a 'stripped down copy of glib 2.0') Since then we have worked on
improving pkg-config for embedded use.
## usage
Implementations of pkg-config, such as pkgconf, are typically used with the Implementations of pkg-config, such as pkgconf, are typically used with the
PKG_CHECK_MODULES autoconf macro. As far as I (nenolod) know, pkgconf is PKG_CHECK_MODULES autoconf macro. As far as we know, pkgconf is
compatible with all known variations of this macro. pkgconf detects at compatible with all known variations of this macro. pkgconf detects at
runtime whether or not it was started as 'pkg-config', and if so, attempts runtime whether or not it was started as 'pkg-config', and if so, attempts
to set program options such that its behaviour is similar. to set program options such that its behaviour is similar.
In terms of the autoconf macro, it is possible to specify the PKG_CONFIG In terms of the autoconf macro, it is possible to specify the PKG_CONFIG
environment variable, so that you can test pkgconf without overwriting your environment variable, so that you can test pkgconf without overwriting your
pkg-config binary. (hint: export PKG_CONFIG=/usr/bin/pkgconf) However, pkg-config binary. Some other build systems may also respect the PKG_CONFIG
if you do this, it will be running in native mode, so you may have some very environment variable.
strange results as the dependency graph is compiled differently in native
mode. To set the enviornment variable on the bourne shell and clones (i.e. bash), you
can run:
$ export PKG_CONFIG=/usr/bin/pkgconf
## technical design (why pkgconf is better for distros) ## technical design (why pkgconf is better for distros)