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-rw-r--r--gnu/packages/gcc.scm24
1 files changed, 23 insertions, 1 deletions
diff --git a/gnu/packages/gcc.scm b/gnu/packages/gcc.scm
index e795f9749f..4733fc1af6 100644
--- a/gnu/packages/gcc.scm
+++ b/gnu/packages/gcc.scm
@@ -279,7 +279,29 @@ Go. It also includes runtime support libraries for these languages.")
version "/gcc-" version ".tar.bz2"))
(sha256
(base32
- "1pbjp4blk2ycaa6r3jmw4ky5f1s9ji3klbqgv8zs2sl5jn1cj810"))))))
+ "1pbjp4blk2ycaa6r3jmw4ky5f1s9ji3klbqgv8zs2sl5jn1cj810"))))
+
+ ;; TODO: In core-updates, improve the 'pre-configure phase of the main
+ ;; 'gcc' package so that the 'join-two-line-dynamic-linker-defns phase is
+ ;; no longer needed here. Then the entire 'arguments' override below can
+ ;; be removed.
+ (arguments
+ (substitute-keyword-arguments (package-arguments gcc-4.7)
+ ((#:phases phases)
+ `(alist-cons-before
+ 'pre-configure 'join-two-line-dynamic-linker-defns
+ (lambda* (#:key inputs outputs #:allow-other-keys)
+ (let ((libc (assoc-ref inputs "libc")))
+ (when libc
+ ;; Join two-line definitions of GLIBC_DYNAMIC_LINKER* into a
+ ;; single line, to allow the 'pre-configure phase to work
+ ;; properly.
+ (substitute* (find-files "gcc/config"
+ "^linux(64|-elf)?\\.h$")
+ (("(#define GLIBC_DYNAMIC_LINKER[^ ]*.*)\\\\\n$" _ line)
+ line)))
+ #t))
+ ,phases))))))
(define* (custom-gcc gcc name languages #:key (separate-lib-output? #t))
"Return a custom version of GCC that supports LANGUAGES."