Move noarch into subpackage

dragonbox.spec

@@ -10,11 +10,6 @@ License:        Apache-2.0 WITH LLVM-exception OR BSL-1.0
 URL:            https://github.com/jk-jeon/dragonbox
 Source0:        %{url}/archive/%{version}/%{name}-%{version}.tar.gz
 
-# Note that we set BuildArch:noarch here because package comes with no tests
-# If in future tests are added, we should move this under the -devel subpackage
-# to comply with FPG
-BuildArch:      noarch
-
 BuildRequires: gcc-c++
 BuildRequires: cmake
 
@@ -26,7 +21,9 @@ Dragonbox is further inspired by Grisu and Grisu-Exact.
 
 %package devel
 Summary:        Development files for %{name}
+# Headers-only
 Provides:       %{name}-static = %{version}-%{release}
+BuildArch:      noarch
 
 %description devel
 Development files for %{name}.