Boost C++ Libraries: Ticket #2123: link against libexpat.a of graph lib fails on 64 bit Linux

Douglas Gregor — Fri, 18 Jul 2008 14:42:03 GMT

We can't build a shared library against a static library that hasn't been compiled with -fPIC. It sounds like expat is being built incorrectly. Is there a shared-library version of expat (ibexpat.so)?

michael.hufer@… — Mon, 21 Jul 2008 06:19:28 GMT

Yes there is. But even if I rename the static libexpat.a the build system cannot link and complains that it does not find libexpat.a, instead of linking with the libexpat.so (which is in the same lib folder).

Douglas Gregor — Wed, 23 Jul 2008 15:22:43 GMT

I believe I've found the issue, but I can't test it myself at the moment. If you make this change to libs/graph/build/Jamfile.v2, it should link against the shared expat:

Index: Jamfile.v2 =================================================================== --- Jamfile.v2 (revision 47135) +++ Jamfile.v2 (working copy) @@ -26,7 +26,7 @@ if [ modules.peek : EXPAT_INCLUDE ] && [

optional_sources += graphml.cpp ; optional_reqs += <include>$(EXPAT_INCLUDE)

<library-path>$(EXPAT_LIBPATH)

<find-static-library>expat

+ <find-shared-library>expat

;

} else

status changed; resolution set

Douglas Gregor — Wed, 23 Jul 2008 15:23:55 GMT

status new → closed
resolution → fixed

(In [47719]) Link against shared expat. Fixes #2123

cc, status changed; resolution deleted

Dave Abrahams — Thu, 28 Aug 2008 02:51:13 GMT

cc Vladimir Prus added
status closed → reopened
resolution fixed

Should this patch have used <find-library> instead? Please feel free to close if not.

status changed; resolution set

Douglas Gregor — Fri, 05 Sep 2008 14:15:00 GMT

status reopened → closed
resolution → fixed

<find-library> doesn't seem to exist:

unknown feature "<find-library>"

milestone deleted

Mon, 03 Nov 2008 14:20:34 GMT

milestone Boost 1.35.1

Milestone Boost 1.35.1 deleted