[BUILD] make it possible to pass alternative arch at build time
When trying to build a 32-bit binary on a 64-bit platform, we generally
need to pass "-m32" to gcc, which is not convenient with current makefile.
Note that this option requires gcc >= 3.
In order to ease parameter passing, a new ARCH= makefile option has been
added. If it receives a target architecture, according "-m32"/"-m64" and
"-march=xxxx" will be passed to gcc. Only the generic makefile has been
changed to support this option right now as the need only appeared on Linux.
The spec file now makes use of this option so that rpmbuild can automatically
build with the proper architecture.
diff --git a/examples/haproxy.spec b/examples/haproxy.spec
index 4374a6c..4897384 100644
--- a/examples/haproxy.spec
+++ b/examples/haproxy.spec
@@ -33,7 +33,7 @@
%define __perl_requires /bin/true
%build
-%{__make} USE_PCRE=1 DEBUG="" TARGET=linux26
+%{__make} USE_PCRE=1 DEBUG="" ARCH=%{_target_cpu} TARGET=linux26
%install
[ "%{buildroot}" != "/" ] && %{__rm} -rf %{buildroot}