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-rw-r--r--gnu/packages/gcc.scm8
1 files changed, 8 insertions, 0 deletions
diff --git a/gnu/packages/gcc.scm b/gnu/packages/gcc.scm
index e10d45d80e..48ef72933d 100644
--- a/gnu/packages/gcc.scm
+++ b/gnu/packages/gcc.scm
@@ -240,6 +240,14 @@ where the OS part is overloaded to denote a specific ABI---into GCC
(("static char const sed_cmd_z\\[\\] =.*;")
"static char const sed_cmd_z[] = \"sed\";"))
+ (when (file-exists? "libbacktrace")
+ ;; GCC 4.8+ comes with libbacktrace. By default it builds
+ ;; with -Werror, which fails with a -Wcast-qual error in glibc
+ ;; 2.21's stdlib-bsearch.h. Remove -Werror.
+ (substitute* "libbacktrace/configure"
+ (("WARN_FLAGS=(.*)-Werror" _ flags)
+ (string-append "WARN_FLAGS=" flags))))
+
;; Add a RUNPATH to libstdc++.so so that it finds libgcc_s.
;; See <https://gcc.gnu.org/bugzilla/show_bug.cgi?id=32354>
;; and <http://bugs.gnu.org/20358>.