These tools are still experimental (so subject to breaking changes) but with very stable syntax. We encourage the usage of it to be prepared for Conan 2.0.
Available since: 1.45.0
This tool can execute
pkg_config executable to extract information from existing
This can be useful for example to create a “system” package recipe over some system installed library,
as a way to automatically extract the
.pc information from the system. Or if some proprietary package
has a build system that only outputs
The constructor is:
def __init__(self, conanfile, library, pkg_config_path=None):
conanfile: The current
selfinstance of the conanfile using the tool
library: The library which
.pcfile is to be parsed. It must exist in the pkg_config path
pkg_config_path: If defined it will be prepended to
PKG_CONFIG_PATHenvironment variable, so the execution finds the required files.
It can be used as:
pkg_config = PkgConfig(conanfile, "libastral", pkg_config_path=<somedir>) print(pkg_config.provides) # something like"libastral = 6.6.6" print(pkg_config.version) # something like"6.6.6" print(pkg_config.includedirs) # something like['/usr/local/include/libastral'] print(pkg_config.defines) # something like['_USE_LIBASTRAL'] print(pkg_config.libs) # something like['astral', 'm'] print(pkg_config.libdirs) # something like['/usr/local/lib/libastral'] print(pkg_config.linkflags) # something like['-Wl,--whole-archive'] print(pkg_config.variables['prefix']) # something like'/usr/local'
There is a convenience method
fill_cpp_info(), that can be used in the
package_info() method as:
def package_info(self): pkg_config = PkgConfig(conanfile, "libastral", pkg_config_path=tmp_dir) pkg_config.fill_cpp_info(self.cpp_info, is_system=False, system_libs=["m", "rt"])
cpp_infofirst argument could be the global one or a component one.
True, all detected libraries will be assigned to
cpp_info.system_libs, and none to
is_system=False, this argument allows defining some potential system libraries found that would be assigned to
cpp_info.system_libs. The remaining detected libs will be assigned to