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POStrange linking error: DSO missing from command line
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  1. POStrange linking error: DSO missing from command line
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    copied!<p>When I'm compiling openvswitch-1.5.0, I've encountered the following compile error:</p> <pre><code> gcc -Wstrict-prototypes -Wall -Wno-sign-compare -Wpointer-arith -Wdeclaration-after-statement -Wformat-security -Wswitch-enum -Wunused-parameter -Wstrict-aliasing -Wbad-function-cast -Wcast-align -Wstrict-prototypes -Wold-style-definition -Wmissing-prototypes -Wmissing-field-initializers -Wno-override-init -g -O2 -export-dynamic ***-lpthread*** -o utilities/ovs-dpctl utilities/ovs-dpctl.o lib/libopenvswitch.a /home/jyyoo/src/dpdk/build/lib/librte_eal.a /home/jyyoo/src/dpdk/build/lib/libethdev.a /home/jyyoo/src/dpdk/build/lib/librte_cmdline.a /home/jyyoo/src/dpdk/build/lib/librte_hash.a /home/jyyoo/src/dpdk/build/lib/librte_lpm.a /home/jyyoo/src/dpdk/build/lib/librte_mbuf.a /home/jyyoo/src/dpdk/build/lib/librte_ring.a /home/jyyoo/src/dpdk/build/lib/librte_mempool.a /home/jyyoo/src/dpdk/build/lib/librte_malloc.a -lrt -lm /usr/bin/ld: /home/jyyoo/src/dpdk/build/lib/librte_eal.a(eal.o): undefined reference to symbol 'pthread_create@@GLIBC_2.2.5' /lib/x86_64-linux-gnu/libpthread.so.0: error adding symbols: DSO missing from command line </code></pre> <p>If I try to see the symbols of <code>libpthread</code>, it looks fine.</p> <pre><code>$ readelf -s /lib/x86_64-linux-gnu/libpthread.so.0 | grep pthread_create 199: 0000000000008220 2814 FUNC GLOBAL DEFAULT 13 pthread_create@@GLIBC_2.2.5 173: 0000000000008220 2814 FUNC LOCAL DEFAULT 13 __pthread_create_2_1 462: 0000000000008220 2814 FUNC GLOBAL DEFAULT 13 pthread_create@@GLIBC_2.2 </code></pre> <p>Could you give any hints or pointers?</p>
 

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