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| author | Xi Ruoyao <xry111@xry111.site> | 2022-11-03 10:01:18 +0800 |
|---|---|---|
| committer | Xi Ruoyao <xry111@xry111.site> | 2022-11-03 10:02:44 +0800 |
| commit | 2c8cb1743e5c89ece042085f3d11667f243b22e6 (patch) | |
| tree | 465485bcdf7f84c852948c68925b0b6c1bcdd066 | |
| parent | 6dfe1df59367546c9bcd3debf9797c1df533b6ab (diff) | |
grub: copy the "no tuning" warning from BLFS
It's reported that a GRUB build with CFLAGS=-O2 is broken.
| -rw-r--r-- | chapter08/grub.xml | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/chapter08/grub.xml b/chapter08/grub.xml index 78304a3ab..08d2ac175 100644 --- a/chapter08/grub.xml +++ b/chapter08/grub.xml @@ -50,6 +50,17 @@ </para> </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> <screen><userinput remap="configure">./configure --prefix=/usr \ |