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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 |
| Cc: | xen-devel@xxxxxxxxxxxxxxxxxxx |
| Delivery-date: | Fri, 23 Jul 2010 09:46:05 -0700 |
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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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