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Diffstat (limited to 'manual/install.texi')
| -rw-r--r-- | manual/install.texi | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/manual/install.texi b/manual/install.texi index 0c05f51bbb..4575d22319 100644 --- a/manual/install.texi +++ b/manual/install.texi @@ -163,6 +163,20 @@ so that they can be invoked directly. @item --enable-lock-elision=yes Enable lock elision for pthread mutexes by default. +@pindex pt_chown +@findex grantpt +@item --enable-pt_chown +The file @file{pt_chown} is a helper binary for @code{grantpt} +(@pxref{Allocation, Pseudo-Terminals}) that is installed setuid root to +fix up pseudo-terminal ownership. It is not built by default because +systems using the Linux kernel are commonly built with the @code{devpts} +filesystem enabled and mounted at @file{/dev/pts}, which manages +pseudo-terminal ownership automatically. By using +@samp{--enable-pt_chown}, you may build @file{pt_chown} and install it +setuid and owned by @code{root}. The use of @file{pt_chown} introduces +additional security risks to the system and you should enable it only if +you understand and accept those risks. + @item --build=@var{build-system} @itemx --host=@var{host-system} These options are for cross-compiling. If you specify both options and |