Workaround i686 build issue

vulkan-validation-layers.spec

@@ -1,18 +1,12 @@
 Name:           vulkan-validation-layers
 Version:        1.1.77.0
-Release:        2%{?dist}
+Release:        3%{?dist}
 Summary:        Vulkan validation layers
 
 License:        ASL 2.0
 URL:            https://github.com/KhronosGroup/Vulkan-ValidationLayers
 Source0:        %url/archive/sdk-%{version}.tar.gz#/Vulkan-ValidationLayers-sdk-%{version}.tar.gz
 
-%if 0%{?fedora} >= 29
-# Exclude i686 due to 'virtual memory exhausted' FTBFS
-# Someone who cares about 32bit can fix it or submit a patch
-ExcludeArch:    i686
-%endif
-
 BuildRequires:  cmake3
 BuildRequires:  glslang-devel
 BuildRequires:  ninja-build
@@ -35,6 +29,12 @@ Vulkan validation layers
 
 
 %build
+# Decrease debuginfo even on ix86 because of:
+%ifarch %{ix86}
+# Decrease debuginfo verbosity to reduce memory consumption even more
+%global optflags %(echo %{optflags} | sed 's/-g /-g1 /')
+%endif
+
 %cmake3 -GNinja -DCMAKE_BUILD_TYPE=Release -DGLSLANG_INSTALL_DIR=%{_bindir} .
 # Use two threads as build uses mega amounts of RAM
 # It still requires at least 16Gb to compile with 2 threads
@@ -56,6 +56,9 @@ ninja -v -j2
 
 
 %changelog
+* Tue Jun 26 2018 Leigh Scott <leigh123linux@googlemail.com> - 1.1.77.0-3
+- Workaround i686 build issue
+
 * Tue Jun 26 2018 Leigh Scott <leigh123linux@googlemail.com> - 1.1.77.0-2
 - Exclude i686 due to 'virtual memory exhausted' FTBFS