Changeset 5752f35 for general

Timestamp:

05/28/2024 03:42:56 PM (6 weeks ago)

Author:

Xi Ruoyao <xry111@…>

Branches:

trunk

Children:

18bf2d4

Parents:

f834c6c

git-author:

Xi Ruoyao <xry111@…> (05/28/2024 03:27:56 PM)

git-committer:

Xi Ruoyao <xry111@…> (05/28/2024 03:42:56 PM)

Message:

rust: Remove the hack for non-SSE2 system

We are going to unsupport BLFS on 32-bit x86, and the sed command just
doesn't work for recent Rust releases.

The upstream says you should configure for i586-unknown-linux-gnu (5
instead of 6) if the system does not support SSE2 but I've not tested it
at all. It's unlikely anyone will ever test it (who'll build LFS, LLVM,
and then Rustc on a Pentium III?)

File:

• general/prog/rust.xml (modified) (1 diff)

general/prog/rust.xml

@@ -204 +204 @@
     <title>Installation of Rust</title>
 
-    <note>
-      <para>
-        Currently the rust compiler produces SSE2 instructions for 32-bit x86,
-        causing the generated code to be broken on 32-bit systems without a
-        SSE2-capable processor.  All x86 processor models released after
-        2004 should be SSE2-capable.  Run
-        <command>lscpu | grep sse2</command> as a test.  If it outputs
-        anything, your CPU is SSE2-capable and OK.  Otherwise you may try
-        to build this package <emphasis>on a SSE2-capable system</emphasis>
-        with the following fix applied:
-      </para>
-
-      <!-- computeroutput used deliberately to stop anyone from copying
-           blindly -->
-<screen role="nodump"><computeroutput>sed 's@pentium4@pentiumpro@' -i \
-    compiler/rustc_target/src/spec/i686_unknown_linux_gnu.rs</computeroutput></screen>
-
-      <para>
-        And copy the resulting
-        <filename class="directory">/opt/rustc-&rust-version;</filename>
-        to the system without SSE2 capability. But this change is still
-        under upstream review and not tested by BLFS editors.
-      </para>
-    </note>
-
     <para>
       To install into the