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From "Albert Strasheim (JIRA)" <j...@apache.org>
Subject [jira] Created: (AMQCPP-123) Link error when trying to link another shared library against AMQCPP on 64-bit Linux
Date Tue, 05 Jun 2007 23:28:33 GMT
Link error when trying to link another shared library against AMQCPP on 64-bit Linux
------------------------------------------------------------------------------------

                 Key: AMQCPP-123
                 URL: https://issues.apache.org/activemq/browse/AMQCPP-123
             Project: ActiveMQ C++ Client
          Issue Type: Improvement
    Affects Versions: 2.1
            Reporter: Albert Strasheim
            Assignee: Nathan Mittler
            Priority: Minor
             Fix For: 2.1


When trying to link another shared library against libactivemq-cpp.a on 64-bit Fedora Core
6, I get the following error:

/usr/bin/ld: libactivemq-cpp.a(ActiveMQConnectionFactory.o): relocation R_X86_64_32 against
`a local symbol' can not be used when making a shared object; recompile with -fPIC
libactivemq-cpp.a: could not read symbols: Bad value

Adding -fPIC to the CXXFLAGS seems to do the trick:

Index: configure.ac
===================================================================
--- configure.ac        (revision 544508)
+++ configure.ac        (working copy)
@@ -86,7 +86,7 @@
 AM_PATH_CPPUNIT(1.10.2, cppunit=yes, cppunit=no; AC_MSG_RESULT([no. Unit and Integration
tests disabled])) 
 AM_CONDITIONAL(BUILD_CPPUNIT_TESTS, test x$cppunit = xyes)
 
-CXXFLAGS="$CXXFLAGS -W -Wall -fstrict-aliasing -Wstrict-aliasing=2 -Wno-long-long"
+CXXFLAGS="$CXXFLAGS -W -Wall -fstrict-aliasing -Wstrict-aliasing=2 -Wno-long-long -fPIC"
 # CPPUNIT_CXXFLAGS="$CPPUNIT_CXXFLAGS -Wno-non-virtual-dtor -Wno-unused-parameter -Wno-uninitialized"
 LIBS="$LIBS"



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