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6.3.8.3 The Front End Make-lang.in File

Each language subdirectory contains a Make-lang.in file. It contains targets lang.hook (where lang is the setting of language in config-lang.in) for the following values of hook, and any other Makefile rules required to build those targets (which may if necessary use other Makefiles specified in outputs in config-lang.in, although this is deprecated). It also adds any testsuite targets that can use the standard rule in gcc/Makefile.in to the variable lang_checks.

all.cross
start.encap
rest.encap
FIXME: exactly what goes in each of these targets?
tags
Build an etags TAGS file in the language subdirectory in the source tree.
info
Build info documentation for the front end, in the build directory. This target is only called by `make bootstrap' if a suitable version of makeinfo is available, so does not need to check for this, and should fail if an error occurs.
dvi
Build DVI documentation for the front end, in the build directory. This should be done using $(TEXI2DVI), with appropriate -I arguments pointing to directories of included files.
pdf
Build PDF documentation for the front end, in the build directory. This should be done using $(TEXI2PDF), with appropriate -I arguments pointing to directories of included files.
html
Build HTML documentation for the front end, in the build directory.
man
Build generated man pages for the front end from Texinfo manuals (see Man Page Generation), in the build directory. This target is only called if the necessary tools are available, but should ignore errors so as not to stop the build if errors occur; man pages are optional and the tools involved may be installed in a broken way.
install-common
Install everything that is part of the front end, apart from the compiler executables listed in compilers in config-lang.in.
install-info
Install info documentation for the front end, if it is present in the source directory. This target should have dependencies on info files that should be installed.
install-man
Install man pages for the front end. This target should ignore errors.
install-plugin
Install headers needed for plugins.
srcextra
Copies its dependencies into the source directory. This generally should be used for generated files such as Bison output files which are not version-controlled, but should be included in any release tarballs. This target will be executed during a bootstrap if `--enable-generated-files-in-srcdir' was specified as a configure option.
srcinfo
srcman
Copies its dependencies into the source directory. These targets will be executed during a bootstrap if `--enable-generated-files-in-srcdir' was specified as a configure option.
uninstall
Uninstall files installed by installing the compiler. This is currently documented not to be supported, so the hook need not do anything.
mostlyclean
clean
distclean
maintainer-clean
The language parts of the standard GNU `*clean' targets. See Standard Targets for Users, for details of the standard targets. For GCC, maintainer-clean should delete all generated files in the source directory that are not version-controlled, but should not delete anything that is.

Make-lang.in must also define a variable lang_OBJS to a list of host object files that are used by that language.