install: The C++ front end does not use extensions

gcc:
	* doc/install.texi (Prerequisites): The C++ front end also does
	not use extensions.

diff --git a/gcc/doc/install.texi b/gcc/doc/install.texi
index 84eafdb7f24ff353b4903bc28ab130645e7530a6..32b0f1cce6beb8c9b22c1ba3f7a053d300861510 100644 (file)
--- a/gcc/doc/install.texi
+++ b/gcc/doc/install.texi
@@ -238,7 +238,7 @@ compiler, and was also the version that declared C++17 support stable.
 To build all languages in a cross-compiler or other configuration where
 3-stage bootstrap is not performed, you need to start with an existing
 GCC binary (of a new enough version) because source code for language
-frontends other than C might use GCC extensions.
+frontends other than C and C++ might use GCC extensions.
 
 @item C standard library and headers