@code{powerpc64-unknown-linux-gnu} host. In this case, pass
@option{--enable-bootstrap} to the configure script.
-@code{BUILD_CONFIG} can be used to bring in additional customization to
-the build. It can be set to a whitespace-separated list of names. For
-each such @code{NAME}, top-level @file{config/@code{NAME}.mk} will be
-included by the top-level @file{Makefile}, bringing in any settings it
-contains. Some examples are:
+@code{BUILD_CONFIG} can be used to bring in additional customization
+to the build. It can be set to a whitespace-separated list of names.
+For each such @code{NAME}, top-level @file{config/@code{NAME}.mk} will
+be included by the top-level @file{Makefile}, bringing in any settings
+it contains. The default @code{BUILD_CONFIG} can be set using the
+configure option @option{--with-build-config=@code{NAME}...}. Some
+examples of supported build configurations are:
@table @asis
@item @samp{bootstrap-O1}
@item @samp{bootstrap-debug}
Verifies that the compiler generates the same executable code, whether
-or not it is asked to emit debug information. To this end, this option
-builds stage2 host programs without debug information, and uses
+or not it is asked to emit debug information. To this end, this
+option builds stage2 host programs without debug information, and uses
@file{contrib/compare-debug} to compare them with the stripped stage3
object files. If @code{BOOT_CFLAGS} is overridden so as to not enable
debug information, stage2 will have it, and stage3 won't. This option
-is enabled by default when GCC bootstrapping is enabled: in addition to
-better test coverage, it makes default bootstraps faster and leaner.
+is enabled by default when GCC bootstrapping is enabled, if
+@code{strip} can turn object files compiled with and without debug
+info into identical object files. In addition to better test
+coverage, this option makes default bootstraps faster and leaner.
@item @samp{bootstrap-debug-big}
-In addition to the checking performed by @code{bootstrap-debug}, this
-option saves internal compiler dumps during stage2 and stage3 and
-compares them as well, which helps catch additional potential problems,
-but at a great cost in terms of disk space.
+Rather than comparing stripped object files, as in
+@code{bootstrap-debug}, this option saves internal compiler dumps
+during stage2 and stage3 and compares them as well, which helps catch
+additional potential problems, but at a great cost in terms of disk
+space. It can be specified in addition to @samp{bootstrap-debug}.
@item @samp{bootstrap-debug-lean}
This option saves disk space compared with @code{bootstrap-debug-big},
@uref{http://pware.hvcc.edu,,Hudson Valley Community College Open Source Software for IBM System p};
@item
-@uref{http://www.perzl.org/aix,,AIX 5L and 6 Open Source Packages}.
+@uref{http://www.perzl.org/aix/,,AIX 5L and 6 Open Source Packages}.
@end itemize
@item
@item
@uref{http://www.nongnu.org/avr/,,http://www.nongnu.org/avr/}
@item
-@uref{http://home.overta.ru/users/denisc/,,http://home.overta.ru/users/denisc/}
-@item
@uref{http://www.amelek.gda.pl/avr/,,http://www.amelek.gda.pl/avr/}
@end itemize
Earlier versions of headers are incompatible with the new default semantics
of @code{extern inline} in @code{-std=c99} and @code{-std=gnu99} modes.
-@html
-<hr />
-@end html
-@heading @anchor{os2}OS/2
-
-GCC does not currently support OS/2. However, Andrew Zabolotny has been
-working on a generic OS/2 port with pgcc. The current code can be found
-at @uref{http://www.goof.com/pcg/os2/,,http://www.goof.com/pcg/os2/}.
-
@html
<hr />
@end html
projects / gcc.git / blobdiff