This reverts commit ca4ee9b0026092bfcbd6221bb55874a6b64bc9f2. --configdir is not supported in some projects
BUILD STYLES ============ These shell snippets provide support for multiple build systems, i.e GNU configure, CMake, etc. A build style file must provide at least the following functions: - do_configure - do_build - do_install If a source package defines its own do_xxx() function, the function defined in the build style file is simply ignored.