Program compiling program fail at links for objective c files <p>I am trying to compile a program using its source code and I am unable too and the problem seems to happen in the same folder in every ocurrance, and when I check the files, they are all objective c language, could it be that I am missing libraries or programs? If so which may they be? I tried researching online and here but all I find is stuff on gcc and g++ but I already have both installed along with the boost library which is another pre-req for this program. Here are some of the command line outputs I got:</p> <pre><code> "g++" -o "phrase-extract/pcfg-score/bin/gcc-4.6/release/debug-symbols-on/link-static/threading-multi/pcfg-score" -Wl,--start-group "phrase-extract/pcfg-score/bin/gcc-4.6/release/debug-symbols-on/link-static/threading-multi/pcfg_score.o" "phrase-extract/pcfg-score/bin/gcc-4.6/release/debug-symbols-on/link-static/threading-multi/main.o" "phrase-extract/pcfg-score/bin/gcc-4.6/release/debug-symbols-on/link-static/threading-multi/tree_scorer.o" "phrase-extract/pcfg-common/bin/gcc-4.6/release/debug-symbols-on/link-static/threading-multi/libpcfg_common.a" -Wl,-Bstatic -lboost_program_options-mt -lboost_system-mt -lboost_thread-mt -Wl,-Bdynamic -lSegFault -lrt -Wl,--end-group -g -pthread ...failed gcc.link phrase-extract/pcfg-score/bin/gcc-4.6/release/debug-symbols-on/link-static/threading-multi/pcfg-score... ...skipped &lt;p/home/rowe/Moses/bin&gt;moses_chart for lack of &lt;pmoses-chart-cmd/src/bin/gcc-4.6/release/debug-symbols-on/link-static/threading-multi&gt;moses_chart... ...skipped &lt;p/home/rowe/Moses/bin&gt;moses for lack of &lt;pmoses-cmd/src/bin/gcc-4.6/release/debug-symbols-on/link-static/threading-multi&gt;moses... ...skipped &lt;p/home/rowe/Moses/bin&gt;lmbrgrid for lack of &lt;pmoses-cmd/src/bin/gcc-4.6/release/debug-symbols-on/link-static/threading-multi&gt;lmbrgrid... ...skipped &lt;p/home/rowe/Moses/bin&gt;CreateOnDiskPt for lack of &lt;pOnDiskPt/bin/gcc-4.6/release/debug-symbols-on/link-static/threading-multi&gt;CreateOnDiskPt... ...skipped &lt;p/home/rowe/Moses/bin&gt;queryOnDiskPt for lack of &lt;pOnDiskPt/bin/gcc-4.6/release/debug-symbols-on/link-static/threading-multi&gt;queryOnDiskPt... ...skipped &lt;p/home/rowe/Moses/bin&gt;pro for lack of &lt;pmert/bin/gcc-4.6/release/debug-symbols-on/link-static/threading-multi&gt;pro... ...skipped &lt;p/home/rowe/Moses/bin&gt;kbmira for lack of &lt;pmert/bin/gcc-4.6/release/debug-symbols-on/link-static/threading-multi&gt;kbmira... common.copy /home/rowe/Moses/bin/processPhraseTable ...skipped &lt;p/home/rowe/Moses/bin&gt;processLexicalTable for lack of &lt;pmisc/bin/gcc-4.6/release/debug-symbols-on/link-static/threading-multi&gt;processLexicalTable... common.copy /home/rowe/Moses/bin/queryPhraseTable ...skipped &lt;p/home/rowe/Moses/bin&gt;queryLexicalTable for lack of &lt;pmisc/bin/gcc-4.6/release/debug-symbols-on/link-static/threading-multi&gt;queryLexicalTable... ...skipped &lt;p/home/rowe/Moses/bin&gt;extract-ghkm for lack of &lt;pphrase-extract/extract-ghkm/bin/gcc-4.6/release/debug-symbols-on/link-static/threading-multi&gt;extract-ghkm... ...skipped &lt;p/home/rowe/Moses/bin&gt;pcfg-extract for lack of &lt;pphrase-extract/pcfg-extract/bin/gcc-4.6/release/debug-symbols-on/link-static/threading-multi&gt;pcfg-extract... ...skipped &lt;p/home/rowe/Moses/bin&gt;pcfg-score for lack of &lt;pphrase-extract/pcfg-score/bin/gcc-4.6/release/debug-symbols-on/link-static/threading-multi&gt;pcfg-score... common.copy /home/rowe/Moses/lib/libLM.a ...failed updating 12 targets... ...skipped 12 targets... ...updated 8 targets... </code></pre>