docs: remove --disable-stage1-checking from requirements

As the minimal GCC version that can build the current master
is 4.8, it does not make sense mentioning something for older
versions.

gcc/ChangeLog:

	* doc/install.texi: Remove option for GCC < 4.8.
This commit is contained in:
Martin Liska 2022-02-01 16:35:47 +01:00
parent e9bf6d6b0e
commit 3ad29854f0

View file

@ -239,11 +239,6 @@ To build all languages in a cross-compiler or other configuration where
GCC binary (version 4.8 or later) because source code for language
frontends other than C might use GCC extensions.
Note that to bootstrap GCC with versions of GCC earlier than 4.8, you
may need to use @option{--disable-stage1-checking}, though
bootstrapping the compiler with such earlier compilers is strongly
discouraged.
@item C standard library and headers
In order to build GCC, the C standard library and headers must be present