Changeset 2c8cb17

Timestamp:

11/03/2022 02:02:44 AM (18 months ago)

Author:

Xi Ruoyao <xry111@…>

Branches:

11.3, 11.3-rc1, 12.0, 12.0-rc1, 12.1, 12.1-rc1, bdubbs/gcc13, multilib, renodr/libudev-from-systemd, trunk, xry111/arm64, xry111/arm64-12.0, xry111/clfs-ng, xry111/loongarch, xry111/loongarch-12.0, xry111/loongarch-12.1, xry111/mips64el, xry111/pip3, xry111/update-glibc

Children:

a31b65a, f84d8a6

Parents:

6dfe1df

git-author:

Xi Ruoyao <xry111@…> (11/03/2022 02:01:18 AM)

git-committer:

Xi Ruoyao <xry111@…> (11/03/2022 02:02:44 AM)

Message:

grub: copy the "no tuning" warning from BLFS

It's reported that a GRUB build with CFLAGS=-O2 is broken.

File:

• chapter08/grub.xml (modified) (1 diff)

chapter08/grub.xml

@@ -51 +51 @@
     </note>
 
+    <warning>
+      <para>Unset any environment variables which may affect the build:</para>
+
+      <screen><userinput remap='pre'>unset {C,CPP,CXX,LD}FLAGS</userinput></screen>
+
+      <para>Don't try <quote>tuning</quote> this package with custom
+      compilation flags: this package is a bootloader, with low-level
+      operations in the source code which is likely to be broken by some
+      aggressive optimizations.</para>
+    </warning>
+
     <para>Prepare GRUB for compilation:</para>