Re-enable ARM build with upstream cast fix

gambit-c-4.8.4-fix-flonum-fixnum-cast.patch

@@ -0,0 +1,11 @@
+--- gambit-v4_8_4-devel/include/gambit.h.in.orig	2016-01-26 05:55:30.000000000 +0700
++++ gambit-v4_8_4-devel/include/gambit.h.in	2016-02-29 00:03:00.880809119 +0700
+@@ -2962,7 +2962,7 @@
+ 
+ /* APPLY-able operations */
+ 
+-#define ___F64TOFIX(x)___FIX(x)
++#define ___F64TOFIX(x)___FIX(___CAST(___WORD,x))
+ #define ___F64FROMFIX(x)___INT(x)
+ #define ___F64_0 0.0
+ #define ___F64POS(x)x

gambit-c.spec

@@ -17,7 +17,7 @@
 
 Name:           gambit-c
 Version:        4.8.4
-Release:        1%{?dist}
+Release:        2%{?dist}
 Summary:        Scheme programming system
 
 Group:          Development/Languages
@@ -26,6 +26,8 @@ URL:            http://gambitscheme.org/
 Source0:        http://www.iro.umontreal.ca/~gambit/download/gambit/v4.8/source/%{_dirname}.tgz
 Source1:        gambit-init.el
 Patch0:         gambc-v4_2_8-modtime.patch
+# from upstream https://github.com/feeley/gambit/commit/2d1792ce2c1c43efaa7369da4577787d92d9321d
+Patch1:         %{name}-4.8.4-fix-flonum-fixnum-cast.patch
 
 BuildRequires:  emacs
 Requires:       gcc
@@ -33,10 +35,6 @@ Requires:       emacs-filesystem >= %{_emacs_version}
 Obsoletes:      emacs-gambit    < 4.7.7-2
 Obsoletes:      emacs-gambit-el < 4.7.7-2
 
-# number->string issue; disabling until we know more
-# https://github.com/feeley/gambit/issues/181
-# https://bugzilla.redhat.com/show_bug.cgi?id=1310438
-ExcludeArch:    armv7hl
 
 %description
 Gambit-C includes a Scheme interpreter and a Scheme compiler which can
@@ -180,6 +178,9 @@ fi
 
 
 %changelog
+* Sun Feb 28 2016 Michel Alexandre Salim <salimma@fedoraproject.org> - 4.8.4-2
+- Re-enable ARM build with upstream cast fix
+
 * Sun Feb 21 2016 Michel Alexandre Salim <salimma@fedoraproject.org> - 4.8.4-1
 - Update to 4.8.4