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04/08: gnu: gcc-static: Remove -lgcc_s from GNU_USER_TARGET_LIB_SPEC.


From: Mark H. Weaver
Subject: 04/08: gnu: gcc-static: Remove -lgcc_s from GNU_USER_TARGET_LIB_SPEC.
Date: Fri, 02 Jan 2015 04:02:20 +0000

mhw pushed a commit to branch wip-armhf
in repository guix.

commit 5336e4c741917953789ba1f3a9c3af7102790dcf
Author: Mark H Weaver <address@hidden>
Date:   Thu Jan 1 22:53:55 2015 -0500

    gnu: gcc-static: Remove -lgcc_s from GNU_USER_TARGET_LIB_SPEC.
    
    * gnu/packages/make-bootstrap.scm (%gcc-static): Add 'remove-lgcc_s
      phase.
    * gnu/packages/gcc.scm (gcc-4.7): Add comment.
---
 gnu/packages/gcc.scm            |    5 +++++
 gnu/packages/make-bootstrap.scm |   14 +++++++++++++-
 2 files changed, 18 insertions(+), 1 deletions(-)

diff --git a/gnu/packages/gcc.scm b/gnu/packages/gcc.scm
index e795f97..d8fd885 100644
--- a/gnu/packages/gcc.scm
+++ b/gnu/packages/gcc.scm
@@ -197,6 +197,11 @@ where the OS part is overloaded to denote a specific 
ABI---into GCC
                    ;; 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>.)
+                   ;;
+                   ;; NOTE: The '-lgcc_s' added below needs to be removed in a
+                   ;; later phase of %gcc-static.  If you change the string
+                   ;; below, make sure to update the relevant code in
+                   ;; %gcc-static package as needed.
                    (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"
                            libc libc libdir libdir suffix))
diff --git a/gnu/packages/make-bootstrap.scm b/gnu/packages/make-bootstrap.scm
index f6ef2e3..88fad0e 100644
--- a/gnu/packages/make-bootstrap.scm
+++ b/gnu/packages/make-bootstrap.scm
@@ -430,7 +430,19 @@ for `sh' in $PATH, and without nscd, and with static NSS 
modules."
                        "--disable-libquadmath"
                        "--disable-decimal-float")
                       (remove (cut string-match 
"--(.*plugin|enable-languages)" <>)
-                              ,flags))))))
+                              ,flags)))
+            ((#:phases phases)
+             `(alist-cons-after
+               'pre-configure 'remove-lgcc_s
+               (lambda _
+                 ;; Remove the '-lgcc_s' added to GNU_USER_TARGET_LIB_SPEC in
+                 ;; the 'pre-configure phase of our main gcc package, because
+                 ;; that shared library is not present in this static gcc.  See
+                 ;; 
<https://lists.gnu.org/archive/html/guix-devel/2015-01/msg00008.html>.
+                 (substitute* (find-files "gcc/config"
+                                          "^gnu-user.*\\.h$")
+                   ((" -lgcc_s}}") "}}")))
+               ,phases)))))
      (native-inputs
       (if (%current-target-system)
           `(;; When doing a Canadian cross, we need GMP/MPFR/MPC both



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