.builds/archlinux: add x86 build

.builds/x86-linux-gnu.ini

@@ -0,0 +1,19 @@
+[binaries]
+c = '/usr/bin/gcc'
+cpp = '/usr/bin/g++'
+ar = '/usr/bin/gcc-ar'
+strip = '/usr/bin/strip'
+pkgconfig = '/usr/bin/pkgconf'
+llvm-config = '/usr/bin/llvm-config32'
+
+[built-in options]
+c_args = ['-m32']
+c_link_args = ['-m32']
+pkg_config_path = ['/usr/lib32/pkgconfig']
+libdir = 'lib32'
+
+[host_machine]
+system = 'linux'
+cpu_family = 'x86'
+cpu = 'i686'
+endian = 'little'