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6.3.4 Makefile Targets

This is the default target. Depending on what your build/host/target configuration is, it coordinates all the things that need to be built.
Produce info-formatted documentation and man pages. Essentially it calls `make man' and `make info'.
Produce DVI-formatted documentation.
Generate man pages.
Generate info-formatted pages.
Delete the files made while building the compiler.
That, and all the other files built by `make all'.
That, and all the files created by configure.
Distclean plus any file that can be generated from other files. Note that additional tools may be required beyond what is normally needed to build gcc.
Generates files in the source directory that do not exist in CVS but should go into a release tarball. One example is gcc/c-parse.c which is generated from the CVS source file gcc/
Copies the info-formatted and manpage documentation into the source directory usually for the purpose of generating a release tarball.
Installs gcc.
Deletes installed files.
Run the testsuite. This creates a testsuite subdirectory that has various .sum and .log files containing the results of the testing. You can run subsets with, for example, `make check-gcc'. You can specify specific tests by setting RUNTESTFLAGS to be the name of the .exp file, optionally followed by (for some tests) an equals and a file wildcard, like:
          make check-gcc RUNTESTFLAGS="execute.exp=19980413-*"

Note that running the testsuite may require additional tools be installed, such as TCL or dejagnu.

Builds GCC three times—once with the native compiler, once with the native-built compiler it just built, and once with the compiler it built the second time. In theory, the last two should produce the same results, which `make compare' can check. Each step of this process is called a “stage”, and the results of each stage N (N = 1...3) are copied to a subdirectory stageN/.
Like bootstrap, except that the various stages are removed once they're no longer needed. This saves disk space.
This incrementally rebuilds each of the three stages, one at a time. It does this by “bubbling” the stages up from their subdirectories (if they had been built previously), rebuilding them, and copying them back to their subdirectories. This will allow you to, for example, continue a bootstrap after fixing a bug which causes the stage2 build to crash.
Rebuilds the most recently built stage. Since each stage requires special invocation, using this target means you don't have to keep track of which stage you're on or what invocation that stage needs.
Removed everything (`make clean') and rebuilds (`make bootstrap').
Like cleanstrap, except that the process starts from the first stage build, not from scratch.
stageN (N = 1...4)
For each stage, moves the appropriate files to the stageN subdirectory.
unstageN (N = 1...4)
Undoes the corresponding stageN.
restageN (N = 1...4)
Undoes the corresponding stageN and rebuilds it with the appropriate flags.
Compares the results of stages 2 and 3. This ensures that the compiler is running properly, since it should produce the same object files regardless of how it itself was compiled.
Builds a compiler with profiling feedback information. For more information, see Building with profile feedback. This is actually a target in the top-level directory, which then recurses into the gcc subdirectory multiple times.