Hi!
As discussed on IRC, gccrs can't compile the standard libraries yet
and requires annoying -frust-incomplete-and-experimental-compiler-do-not-use
option to compile anything.
As such it is better to disable this at least for GCC 13.1, we'd keep
it allowed on the trunk where hopefully support to compile at least
some standard libraries will land soon and eventually a borrow checker.
If enough Rust support is backported from trunk to 13 branch before
13.2, we could revert this change then.
Tested on x86_64-linux with --enable-languages=c,c++,rust and
--enable-languages=c,c++,all , ok for 13 branch?
2023-04-18 Jakub Jelinek <ja...@redhat.com>
* configure.ac: For --enable-languages= mentioning explicitly
rust emit an error, if included in all etc., silently disable
rust.
* configure: Regenerated.
--- configure.ac.jj1 2023-04-17 13:47:26.527792492 +0200
+++ configure.ac 2023-04-18 11:22:10.893011557 +0200
@@ -2150,6 +2150,18 @@ if test -d ${srcdir}/gcc; then
;;
esac
+ # Disable Rust for GCC 13 release.
+ case ${add_this_lang}:${language} in
+ yes:rust)
+ # Specifically requested language; tell them.
+ AC_MSG_ERROR([Rust is not supported in GCC 13 release])
+ ;;
+ *:rust)
+ # Silently disable.
+ add_this_lang=unsupported
+ ;;
+ esac
+
# Disable jit if -enable-host-shared not specified
# but not if building for Mingw. All code in Windows
# is position independent code (PIC).
--- configure.jj1 2023-04-17 13:47:26.519792608 +0200
+++ configure 2023-04-18 11:22:33.500683809 +0200
@@ -8909,6 +8909,18 @@ $as_echo "$as_me: WARNING: GDC is requir
;;
esac
+ # Disable Rust for GCC 13 release.
+ case ${add_this_lang}:${language} in
+ yes:rust)
+ # Specifically requested language; tell them.
+ as_fn_error $? "Rust is not supported in GCC 13 release" "$LINENO"
5
+ ;;
+ *:rust)
+ # Silently disable.
+ add_this_lang=unsupported
+ ;;
+ esac
+
# Disable jit if -enable-host-shared not specified
# but not if building for Mingw. All code in Windows
# is position independent code (PIC).
Jakub
