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-rw-r--r--gnu/packages/gcc.scm14
1 files changed, 8 insertions, 6 deletions
diff --git a/gnu/packages/gcc.scm b/gnu/packages/gcc.scm
index a510af48a0..df161193c1 100644
--- a/gnu/packages/gcc.scm
+++ b/gnu/packages/gcc.scm
@@ -1,5 +1,6 @@
;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2012, 2013, 2014 Ludovic Courtès <ludo@gnu.org>
+;;; Copyright © 2015 Mark H Weaver <mhw@netris.org>
;;;
;;; This file is part of GNU Guix.
;;;
@@ -201,14 +202,15 @@ where the OS part is overloaded to denote a specific ABI---into GCC
(substitute* (find-files "gcc/config"
"^gnu-user.*\\.h$")
(("#define GNU_USER_TARGET_LIB_SPEC (.*)$" _ suffix)
- ;; Help libgcc_s.so be found (see also below.) Always use
- ;; '-lgcc_s' so that libgcc_s.so is always found by those
- ;; programs that use 'pthread_cancel' (glibc dlopens
- ;; libgcc_s.so when pthread_cancel support is needed, but
- ;; having it in the application's RUNPATH isn't enough; see
+ ;; Help libgcc_s.so be found (see also below.) When
+ ;; -pthread is given, use '-lgcc_s' so that libgcc_s.so is
+ ;; always found by those programs that use 'pthread_cancel'
+ ;; (glibc dlopens libgcc_s.so when pthread_cancel support
+ ;; is needed, but having it in the application's RUNPATH
+ ;; isn't enough; see
;; <http://sourceware.org/ml/libc-help/2013-11/msg00023.html>.)
(format #f "#define GNU_USER_TARGET_LIB_SPEC \
-\"-L~a/lib %{!static:-rpath=~a/lib %{!static-libgcc:-rpath=~a/lib64 -rpath=~a/lib -lgcc_s}} \" ~a"
+\"-L~a/lib %{!static:-rpath=~a/lib %{!static-libgcc:-rpath=~a/lib64 -rpath=~a/lib %{pthread:-lgcc_s}}} \" ~a"
libc libc libdir libdir suffix))
(("#define GNU_USER_TARGET_STARTFILE_SPEC.*$" line)
(format #f "#define STANDARD_STARTFILE_PREFIX_1 \"~a/lib\"