From 8d662672fcc29d527e22120c820b447b29c210f3 Mon Sep 17 00:00:00 2001
From: Andreas Enge <andreas@enge.fr>
Date: Fri, 10 Jul 2015 15:11:24 +0200
Subject: [PATCH] gnu: boost: Patch to avoid -m32 flag on mips.

* gnu/packages/patches/boost-mips-avoid-m32.patch: New file.
* gnu-system.am (dist_patch_DATA): Register patch.
* gnu/packages/boost.scm (boost): Use it.
---
 gnu-system.am                                   |  1 +
 gnu/packages/boost.scm                          |  3 ++-
 gnu/packages/patches/boost-mips-avoid-m32.patch | 15 +++++++++++++++
 3 files changed, 18 insertions(+), 1 deletion(-)
 create mode 100644 gnu/packages/patches/boost-mips-avoid-m32.patch

diff --git a/gnu-system.am b/gnu-system.am
index 27f8923314..4f25f2850f 100644
--- a/gnu-system.am
+++ b/gnu-system.am
@@ -392,6 +392,7 @@ dist_patch_DATA =						\
   gnu/packages/patches/binutils-ld-new-dtags.patch		\
   gnu/packages/patches/binutils-loongson-workaround.patch	\
   gnu/packages/patches/bitlbee-configure-doc-fix.patch		\
+  gnu/packages/patches/boost-mips-avoid-m32.patch		\
   gnu/packages/patches/calibre-drop-unrar.patch			\
   gnu/packages/patches/calibre-no-updates-dialog.patch		\
   gnu/packages/patches/cdparanoia-fpic.patch			\
diff --git a/gnu/packages/boost.scm b/gnu/packages/boost.scm
index 1d942603e5..d3b171245d 100644
--- a/gnu/packages/boost.scm
+++ b/gnu/packages/boost.scm
@@ -42,7 +42,8 @@ (define-public boost
                     ".tar.bz2"))
               (sha256
                (base32
-                "1rfkqxns60171q62cppiyzj8pmsbwp1l8jd7p6crriryqd7j1z7x"))))
+                "1rfkqxns60171q62cppiyzj8pmsbwp1l8jd7p6crriryqd7j1z7x"))
+              (patches (list (search-patch "boost-mips-avoid-m32.patch")))))
     (build-system gnu-build-system)
     (inputs `(("zlib" ,zlib)))
     (native-inputs
diff --git a/gnu/packages/patches/boost-mips-avoid-m32.patch b/gnu/packages/patches/boost-mips-avoid-m32.patch
new file mode 100644
index 0000000000..811c9fb3aa
--- /dev/null
+++ b/gnu/packages/patches/boost-mips-avoid-m32.patch
@@ -0,0 +1,15 @@
+The following patch prevents the use of the -m32 flag on mips, where it
+is not understood by gcc, as well as other non-x86 architectures.
+
+diff -u -r boost_1_58_0.orig/tools/build/src/tools/gcc.jam boost_1_58_0/tools/build/src/tools/gcc.jam
+--- boost_1_58_0.orig/tools/build/src/tools/gcc.jam	2015-04-04 19:25:07.000000000 +0200
++++ boost_1_58_0/tools/build/src/tools/gcc.jam	2015-07-10 01:08:19.822733823 +0200
+@@ -451,7 +451,7 @@
+         else
+         {
+             local arch = [ feature.get-values architecture : $(properties) ] ;
+-            if $(arch) != arm
++            if $(arch) = x86
+             {
+                 if $(model) = 32
+                 {