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-rw-r--r--gnu/packages/commencement.scm15
1 files changed, 14 insertions, 1 deletions
diff --git a/gnu/packages/commencement.scm b/gnu/packages/commencement.scm
index 30a0ffcec9..0aa65fe638 100644
--- a/gnu/packages/commencement.scm
+++ b/gnu/packages/commencement.scm
@@ -186,12 +186,25 @@
,cf)))))
(inputs %boot0-inputs))))
+;; Use a "fixed" package source for this early libstdc++ variant so we can
+;; update GCC 4.9 without triggering a full rebuild.
+(define gcc-for-libstdc++
+ (package
+ (inherit gcc-4.9)
+ (source (origin
+ (inherit (package-source gcc-4.9))
+ (patches (search-patches "gcc-4.9-libsanitizer-fix.patch"
+ "gcc-arm-bug-71399.patch"
+ "gcc-asan-missing-include.patch"
+ "gcc-libvtv-runpath.patch"
+ "gcc-fix-texi2pod.patch"))))))
+
(define libstdc++-boot0
;; GCC's libcc1 is always built as a shared library (the top-level
;; 'Makefile.def' forcefully adds --enable-shared) and thus needs to refer
;; to libstdc++.so. We cannot build libstdc++-5.3 because it relies on
;; C++14 features missing in some of our bootstrap compilers.
- (let ((lib (package-with-bootstrap-guile (make-libstdc++ gcc-4.9))))
+ (let ((lib (package-with-bootstrap-guile (make-libstdc++ gcc-for-libstdc++))))
(package
(inherit lib)
(name "libstdc++-boot0")