This should solve the build failure on i386.

openblas-0.2.9-i386.patch

@@ -0,0 +1,125 @@
+From 438002204d79a0393999ae4fe8bc9b5125c45d97 Mon Sep 17 00:00:00 2001
+From: wernsaar <wernsaar@googlemail.com>
+Date: Sat, 21 Jun 2014 12:29:23 +0200
+Subject: [PATCH] Ref #393: fix for INTERFACE64=0 and ARCH_X86 in divtable
+
+---
+ Makefile                 |  2 +-
+ Makefile.system          | 18 +++++++++---------
+ driver/others/divtable.c |  2 +-
+ 3 files changed, 11 insertions(+), 11 deletions(-)
+
+diff --git a/Makefile b/Makefile
+index 2f5d032..ab8602f 100644
+--- a/Makefile
++++ b/Makefile
+@@ -36,7 +36,7 @@ ifndef BINARY64
+ else
+ 	@echo "  BINARY           ... 64bit                 "
+ endif
+-ifdef INTERFACE64
++ifneq ($(INTERFACE64), 0)
+ 	@echo "  Use 64 bits int    (equivalent to \"-i8\" in Fortran)      "
+ endif
+ 	@echo "  C compiler       ... $(C_COMPILER)  (command line : $(CC))"
+diff --git a/Makefile.system b/Makefile.system
+index ade4f93..5d5f0f9 100644
+--- a/Makefile.system
++++ b/Makefile.system
+@@ -52,7 +52,7 @@ ifdef TARGET_CORE
+ GETARCH_FLAGS := -DFORCE_$(TARGET_CORE)
+ endif
+ 
+-ifdef INTERFACE64
++ifneq ($(INTERFACE64), 0)
+ GETARCH_FLAGS	+= -DUSE64BITINT
+ endif
+ 
+@@ -502,7 +502,7 @@ endif
+ else
+ ifdef BINARY64
+ FCOMMON_OPT += -m64
+-ifdef INTERFACE64
++ifneq ($(INTERFACE64), 0)
+ FCOMMON_OPT +=  -fdefault-integer-8
+ endif
+ else
+@@ -516,7 +516,7 @@ endif
+ 
+ ifeq ($(F_COMPILER), INTEL)
+ CCOMMON_OPT += -DF_INTERFACE_INTEL
+-ifdef INTERFACE64
++ifneq ($(INTERFACE64), 0)
+ FCOMMON_OPT += -i8
+ endif
+ ifdef USE_OPENMP
+@@ -536,7 +536,7 @@ CCOMMON_OPT += -DF_INTERFACE_IBM
+ # FCOMMON_OPT	+= -qarch=440
+ ifdef BINARY64
+ FCOMMON_OPT += -q64
+-ifdef INTERFACE64
++ifneq ($(INTERFACE64), 0)
+ FCOMMON_OPT += -qintsize=8
+ endif
+ else
+@@ -551,7 +551,7 @@ ifeq ($(F_COMPILER), PGI)
+ CCOMMON_OPT  += -DF_INTERFACE_PGI
+ COMMON_PROF +=  -DPGICOMPILER
+ ifdef BINARY64
+-ifdef INTERFACE64
++ifneq ($(INTERFACE64), 0)
+ FCOMMON_OPT += -i8
+ endif
+ FCOMMON_OPT += -tp p7-64
+@@ -566,7 +566,7 @@ endif
+ ifeq ($(F_COMPILER), PATHSCALE)
+ CCOMMON_OPT  += -DF_INTERFACE_PATHSCALE
+ ifdef BINARY64
+-ifdef INTERFACE64
++ifneq ($(INTERFACE64), 0)
+ FCOMMON_OPT += -i8
+ endif
+ endif
+@@ -593,7 +593,7 @@ endif
+ ifeq ($(F_COMPILER), OPEN64)
+ CCOMMON_OPT  += -DF_INTERFACE_OPEN64
+ ifdef BINARY64
+-ifdef INTERFACE64
++ifneq ($(INTERFACE64), 0)
+ FCOMMON_OPT += -i8
+ endif
+ endif
+@@ -681,7 +681,7 @@ endif
+ endif
+ 
+ ifdef BINARY64
+-ifdef INTERFACE64
++ifneq ($(INTERFACE64), 0)
+ CCOMMON_OPT	+= 
+ #-DUSE64BITINT
+ endif
+@@ -871,7 +871,7 @@ endif
+ 
+ LAPACK_CFLAGS = $(CFLAGS)
+ LAPACK_CFLAGS += -DHAVE_LAPACK_CONFIG_H 
+-ifdef INTERFACE64
++ifneq ($(INTERFACE64), 0)
+ LAPACK_CFLAGS +=  -DLAPACK_ILP64
+ endif
+ ifdef OS_WINDOWS
+diff --git a/driver/others/divtable.c b/driver/others/divtable.c
+index 7a191db..d50b091 100644
+--- a/driver/others/divtable.c
++++ b/driver/others/divtable.c
+@@ -39,7 +39,7 @@
+ #include "common.h"
+ 
+ #ifdef SMP
+-#ifndef USE64BITINT
++#if !defined(USE64BITINT) || defined(ARCH_X86)
+ unsigned int blas_quick_divide_table[] = {
+   0x00000000, 0x00000001, 0x80000001, 0x55555556, 
+   0x40000001, 0x33333334, 0x2aaaaaab, 0x24924925, 
+-- 
+1.9.3
+

openblas.spec

@@ -12,6 +12,8 @@ Patch0:         openblas-0.2.9-system_lapack.patch
 Patch1:         openblas-0.2.5-libname.patch
 # Don't test link against functions in lapacke 3.5.0 if only 3.4.0 is available
 Patch2:         openblas-0.2.9-lapacke.patch
+# Fix build on i386: https://github.com/wernsaar/OpenBLAS/commit/438002204d79a0393999ae4fe8bc9b5125c45d97.patch
+Patch3:         openblas-0.2.9-i386.patch
 BuildRoot:      %(mktemp -ud %{_tmppath}/%{name}-%{version}-%{release}-XXXXXX)
 
 BuildRequires:  gcc-gfortran
@@ -154,6 +156,7 @@ cd OpenBLAS-%{version}
 %if 0%{?fedora} > 0 && 0%{?fedora} < 21
 %patch2 -p1 -b .lapacke
 %endif
+%patch3 -p1 -b .i386
 
 # Get rid of bundled LAPACK sources
 rm -rf lapack-netlib