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Re: [Xen-devel] [PATCH] correct order of linker options to avoid link er

To: Olaf Hering <olaf@xxxxxxxxx>
Subject: Re: [Xen-devel] [PATCH] correct order of linker options to avoid link errors with recent toolchains
From: Ian Jackson <Ian.Jackson@xxxxxxxxxxxxx>
Date: Fri, 23 Jul 2010 17:44:33 +0100
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Olaf Hering writes ("[Xen-devel] [PATCH] correct order of linker options to 
avoid link errors with recent toolchains"):
> The order of objects and linked libraries is important with recent toolchain
> when --as-needed is used. Move LDFLAGS to the end of cc commandline options.
> Without this change, symbols in libbzip2 are not found when building with 
> openSuSE 11.2 and newer.

Thanks, but:

I infer that libbzip2 is in LDFLAGS (as -lbzip2, I guess).  Is that
right ?  But I think that libraries should be in *_LIBS, not LDFLAGS.
LDFLAGS needs to stay at the beginning so that it can work if you set
it to -static or something.

>  libxenguest.so.$(MAJOR).$(MINOR): LDFLAGS += $(call zlib-options,l)

What is this program "zlib-options" ?  I don't have it on my system.

Ian.

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