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| author | Paolo Bonzini <bonzini@gnu.org> | 2006-06-01 12:28:11 +0000 |
|---|---|---|
| committer | Paolo Bonzini <bonzini@gcc.gnu.org> | 2006-06-01 12:28:11 +0000 |
| commit | f5c3bb4bf0fd0fb39cdfa948dc2a62a3b9d2c9bd (patch) | |
| tree | cc95ffef214e57365d11675fa098dd90a6537c72 /gcc/doc | |
| parent | 028098486c768c0f666bf4daa03cf8adfe230599 (diff) | |
| download | gcc-f5c3bb4bf0fd0fb39cdfa948dc2a62a3b9d2c9bd.zip gcc-f5c3bb4bf0fd0fb39cdfa948dc2a62a3b9d2c9bd.tar.gz gcc-f5c3bb4bf0fd0fb39cdfa948dc2a62a3b9d2c9bd.tar.bz2 | |
re PR bootstrap/25453 (--disable-bootstrap is not documented)
2006-06-01 Paolo Bonzini <bonzini@gnu.org>
PR 25453
* doc/install.texi: Document --enable-bootstrap and
--disable-bootstrap.
From-SVN: r114305
Diffstat (limited to 'gcc/doc')
| -rw-r--r-- | gcc/doc/install.texi | 27 |
1 files changed, 23 insertions, 4 deletions
diff --git a/gcc/doc/install.texi b/gcc/doc/install.texi index 0494f28..dae27c4 100644 --- a/gcc/doc/install.texi +++ b/gcc/doc/install.texi @@ -1052,6 +1052,20 @@ catalog, configuring with @option{--enable-maintainer-mode} will enable this. Note that you need a recent version of the @code{gettext} tools to do so. +@item --disable-bootstrap +For a native build, the default configuration is to perform +a 3-stage bootstrap of the compiler when @samp{make} is invoked, +testing that GCC can compile itself correctly. If you want to disable +this process, you can configure with @option{--disable-bootstrap}. + +@item --enable-bootstrap +In special cases, you may want to perform a 3-stage build +even if the target and host triplets are different. +This could happen when the host can run code compiled for +the target (e.g.@: host is i686-linux, target is i486-linux). +Starting from GCC 4.2, to do this you have to configure explicitly +with @option{--enable-bootstrap}. + @item --enable-generated-files-in-srcdir Neither the .c and .h files that are generated from Bison and flex nor the info manuals and man pages that are built from the .texi files are present @@ -1571,10 +1585,15 @@ documentation pre-built for the unmodified documentation in the release. @section Building a native compiler -For a native build, the command @samp{make} will trigger a 3-stage -bootstrap of the compiler. This will build the entire GCC system -and ensure that it compiles itself correctly, by doing the -following steps: +For a native build, the default configuration is to perform +a 3-stage bootstrap of the compiler when @samp{make} is invoked. +This will build the entire GCC system and ensure that it compiles +itself correctly. It can be disabled with the @option{--disable-bootstrap} +parameter to @samp{configure}, but bootstrapping is suggested because +the compiler will be tested more completely and could also have +better performance. + +The bootstrapping process will complete the following steps: @itemize @bullet @item |