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Diffstat (limited to 'gcc/doc/install.texi')
| -rw-r--r-- | gcc/doc/install.texi | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/gcc/doc/install.texi b/gcc/doc/install.texi index 0cf2f8a71cd..5d96e5fd62c 100644 --- a/gcc/doc/install.texi +++ b/gcc/doc/install.texi @@ -2177,6 +2177,37 @@ In order to avoid shell and @command{make} quoting issues for complex overrides, you can pass a setting for @env{CONFIG_SITE} and set variables in the site file. +@subheading Objective-C-Specific Options + +The following options apply to the build of the Objective-C runtime library. + +@table @code +@item --enable-objc-gc +Specify that an additional variant of the GNU Objective-C runtime library +is built, using an external build of the Boehm-Demers-Weiser garbage +collector (@uref{http://www.hboehm.info/gc/}). This library needs to be +available for each multilib variant, unless configured with +@option{--enable-objc-gc=@samp{auto}} in which case the build of the +additional runtime library is skipped when not available and the build +continues. + +@item --with-target-bdw-gc=@var{list} +@itemx --with-target-bdw-gc-include=@var{list} +@itemx --with-target-bdw-gc-lib=@var{list} +Specify search directories for the garbage collector header files and +libraries. @var{list} is a comma separated list of key value pairs of the +form @samp{@var{multilibdir}@=@var{path}}, where the default multilib key +is named as @samp{.} (dot), or is omitted (e.g. +@samp{--with-target-bdw-gc=/opt/bdw-gc,32=/opt-bdw-gc32}). + +The options @option{--with-target-bdw-gc-include} and +@option{--with-target-bdw-gc-lib} must always be specified together +for each multilib variant and they take precedence over +@option{--with-target-bdw-gc}. If none of these options are +specified, the values are taken from the @command{pkg-config} +@samp{bdw-gc} module. +@end table + @html <hr /> <p> |