< 上一个 | 内容 | 下一个 >

3.7 Programs automake might require

Automake sometimes requires helper programs so that the generated ‘Makefile’ can do its work properly. There are a fairly large number of them, and we list them here.

Although all of these files are distributed and installed with Automake, a couple of them are maintained separately. The Automake copies are updated before each release, but we mention the original source in case you need more recent versions.

ar-lib This is a wrapper primarily for the Microsoft lib archiver, to make it more POSIX-like.

compile This is a wrapper for compilers that do not accept options ‘-c’ and ‘-o’ at the same time. It is only used when absolutely required. Such compilers are rare, with the Microsoft C/C++ Compiler as the most notable exception. This wrapper also makes the following common options available for that compiler, while performing file name translation where needed: ‘-I’, ‘-L’, ‘-l’, ‘-Wl,’ and ‘-Xlinker’.

config.guess config.sub

These two programs compute the canonical triplets for the given build, host, or

target architecture. These programs are updated regularly to support new ar- chitectures and fix probes broken by changes in new kernel versions. Each new release of Automake comes with up-to-date copies of these programs. If your copy of Automake is getting old, you are encouraged to fetch the latest ver- sions of these files from http://savannah.gnu.org/git/?group=config be- fore making a release.

depcomp This program understands how to run a compiler so that it will generate not only the desired output but also dependency information that is then used by the automatic dependency tracking feature (see Section 8.19 [Dependencies], page 80).

elisp-comp

This program is used to byte-compile Emacs Lisp code.



install-sh


This is a replacement for the install program that works on platforms where

install is unavailable or unusable.

mdate-sh This script is used to generate a ‘version.texi’ file. It examines a file and prints some date information about it.

missing This wraps a number of programs that are typically only required by maintain- ers. If the program in question doesn’t exist, missing prints an informative warning and attempts to fix things so that the build can continue.

mkinstalldirs

This script used to be a wrapper around ‘mkdir -p’, which is not portable. Now we prefer to use ‘install-sh -d’ when configure finds that ‘mkdir -p’ does not work, this makes one less script to distribute.

For backward compatibility ‘mkinstalldirs’ is still used and distributed when automake finds it in a package. But it is no longer installed automatically, and it should be safe to remove it.

py-compile

This is used to byte-compile Python scripts.

test-driver

This implements the default test driver offered by the parallel testsuite harness.

texinfo.tex

Not a program, this file is required for ‘make dvi’, ‘make ps’ and ‘make pdf’ to work when Texinfo sources are in the package. The latest version can be downloaded from http://www.gnu.org/software/texinfo/.

ylwrap This program wraps lex and yacc to rename their output files. It also ensures that, for instance, multiple yacc instances can be invoked in a single directory in parallel.