gnu: Disable compressed debug sections for mingw-w64

The newly introduced --enable-compressed-debug-section=all configure
flag in the base binutils package makes the mingw-w64 build system
unusable. For example:

    $ guix build --target=x86_64-w64-mingw32 hello

        and

    $ guix build mingw-w64-x86_64-winpthreads

Will fail to build with an error:

    "x86_64-w64-mingw32-ld: final link failed: bad value"

Turning off this flag seems to fix the problem, but perhaps it'd also be
worthwhile to investigate the root cause.

* gnu/packages/cross-base.scm (cross-binutils): When building for mingw
  targets, append "--enable-compressed-debug-section=no" to configure
  flags.

1 files changed, 10 insertions, 1 deletions

diff --git a/gnu/packages/cross-base.scm b/gnu/packages/cross-base.scm
index 78cbf871ac..529144d127 100644
--- a/gnu/packages/cross-base.scm
+++ b/gnu/packages/cross-base.scm
@@ -101,7 +101,16 @@
                                          "ath9k-htc-firmware-binutils.patch")))
                  ((target-mingw? target)
                   (package-with-extra-patches
-                   binutils
+                   (package-with-extra-configure-variable
+                    ;; mingw binutils does not work correctly when configured
+                    ;; with `--enable-compressed-debug-sections`. An error
+                    ;; like the following will occur whenever you try to link:
+                    ;;
+                    ;;   x86_64-w64-mingw32-ld: final link failed: bad value
+                    ;;
+                    ;; TODO: This seems like a deeper problem that warrants
+                    ;; deeper investigation.
+                    binutils "--enable-compressed-debug-sections" "no")
                    (search-patches "binutils-mingw-w64-timestamp.patch"
                                    "binutils-mingw-w64-deterministic.patch")))
                  (else binutils))