Link error when trying to link another shared library against AMQCPP on 64-bit
Linux
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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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