What the developer wrote
Authored by fanquake
guix: disable-nls in *-base-gcc
What changed, and why it matters
This commit changes the Bitcoin Core build setup for Guix (a reproducible build system) by adding '--disable-nls' when compiling the base GCC compiler used in the build process. NLS stands for Native Language Support, which provides translated error messages and other locale-dependent features. Disabling it makes the compiler toolchain leaner and more deterministic, reducing the chance that translated messages or locale-dependent behavior could subtly change build outputs. There is no direct security vulnerability being fixed here; it is a hardening/reproducibility improvement to the build environment.
No urgent action required. Treat as a normal build-hardening/reproducibility improvement. Reviewers may verify that the change does not break build reproducibility or cross-compilation for any supported platform.
Security signals we found
Build toolchain hardening
Reduction of locale-dependent build variability
No explicit vulnerability or exploit described
Evidence from the diff
The patch adds ‘–disable-nls’ to the configure flags for two custom Guix toolchain packages: base-gcc and linux-base-gcc in contrib/guix/manifest_build.scm. This disables Native Language Support in the GCC toolchain used to build Bitcoin Core release binaries. The change reduces the attack surface and variability introduced by locale-dependent components, supporting deterministic/reproducible builds. The commit message and diff do not describe a specific vulnerability, exploit, or security bug.
Changed components
contrib/guix/manifest_build.scmGuix base-gcc packageGuix linux-base-gcc packageInspect captured patch +2 / −0
diff --git a/contrib/guix/manifest_build.scm b/contrib/guix/manifest_build.scm
index fc0b5b5d..d465b5e2 100644
--- a/contrib/guix/manifest_build.scm
+++ b/contrib/guix/manifest_build.scm
@@ -173,6 +173,7 @@ chain for " target " development."))
"--disable-gcov"
"--disable-libgomp"
"--disable-lto"
+ "--disable-nls"
#$building-on)))))))
(define-public linux-base-gcc
@@ -195,6 +196,7 @@ chain for " target " development."))
"--disable-libquadmath"
"--disable-libsanitizer"
"--disable-lto"
+ "--disable-nls"
#$building-on)))
((#:phases phases)
#~(modify-phases #$phases
Why this scored 18/100
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