From 397421408d80e13ebd7d72000bd2be4a2c0cd6d2 Mon Sep 17 00:00:00 2001
From: Ryan P.C. McQuen
Date: Mon, 25 Jul 2016 06:44:32 -0700
Subject: development/flow: Fix building on 32-bit.

Thanks to David Spencer.

Signed-off-by: Ryan P.C. McQuen <ryan.q@linux.com>
---
 development/flow/flow-noarch.patch | 27 +++++++++++++++++++++++++++
 development/flow/flow.SlackBuild   |  5 ++++-
 2 files changed, 31 insertions(+), 1 deletion(-)
 create mode 100644 development/flow/flow-noarch.patch

diff --git a/development/flow/flow-noarch.patch b/development/flow/flow-noarch.patch
new file mode 100644
index 0000000000..2925164b1d
--- /dev/null
+++ b/development/flow/flow-noarch.patch
@@ -0,0 +1,27 @@
+diff -u -r flow-0.29.0/hack/heap/hh_shared.c flow-0.29.0-patched/hack/heap/hh_shared.c
+--- flow-0.29.0/hack/heap/hh_shared.c	2016-07-14 18:29:48.000000000 +0100
++++ flow-0.29.0-patched/hack/heap/hh_shared.c	2016-07-23 17:55:27.041786018 +0100
+@@ -130,19 +130,14 @@
+  * appeared in Linux 3.17.
+  ****************************************************************************/
+ #if !defined __APPLE__ && !defined _WIN32
++
+   // Linux version for the architecture must support syscall memfd_create
+-  #if defined(__x86_64__)
+-    #define SYS_memfd_create 319
+-  #elif defined(__powerpc64__)
+-    #define SYS_memfd_create 360
+-  #elif defined(__aarch64__)
+-    #define SYS_memfd_create 385
+-  #else
+-    #error "hh_shared.c requires a architecture that supports memfd_create"
++  #include <sys/syscall.h>
++  #if !defined(SYS_memfd_create)
++    #error "hh_shared.c requires an architecture that supports memfd_create"
+   #endif
+ 
+   #define MEMFD_CREATE 1
+-  #include <asm/unistd.h>
+ 
+   /* Originally this function would call uname(), parse the linux
+    * kernel release version and make a decision based on whether
diff --git a/development/flow/flow.SlackBuild b/development/flow/flow.SlackBuild
index c1a17894e8..b81135d7fe 100644
--- a/development/flow/flow.SlackBuild
+++ b/development/flow/flow.SlackBuild
@@ -24,7 +24,7 @@
 
 PRGNAM=flow
 VERSION=${VERSION:-0.29.0}
-BUILD=${BUILD:-1}
+BUILD=${BUILD:-2}
 TAG=${TAG:-_SBo}
 
 if [ -z "$ARCH" ]; then
@@ -73,6 +73,9 @@ find -L . \
  \( -perm 666 -o -perm 664 -o -perm 640 -o -perm 600 -o -perm 444 \
   -o -perm 440 -o -perm 400 \) -exec chmod 644 {} \;
 
+## Fix building on 32-bit.
+patch -p1 < $CWD/$PRGNAM-noarch.patch
+
 CFLAGS="$SLKCFLAGS" \
 CXXFLAGS="$SLKCFLAGS" \
   make
-- 
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