[Bug 334] allow specifying explicit target arch

[bugzilla-daemon at icedtea.classpath.org]

http://icedtea.classpath.org/bugzilla/show_bug.cgi?id=334





------- Comment #7 from xerxes at zafena.se  2010-01-29 10:39 -------
TARGET_ARCH are handeled by gnu makes built in rules that are defined in 
gnu make sources make/default.c

To quote the gnu make manual: TARGET_ARCH have no default value. It are
intended for use by end-users to customize the build process.

TARGET_ARCH are used by the built in make macros
LINK.o = $(CC) $(LDFLAGS) $(TARGET_ARCH)
COMPILE.cc    = $(CXX) $(CXXFLAGS) $(CPPFLAGS) $(TARGET_ARCH) -c
and others...

So simply defining it for cross compilation purposes looks like the right thing
to do


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