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idiv0
n00b
Joined: 02 Nov 2014
Posts: 6
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 Posted: Thu Nov 27, 2014 12:33 pm Post subject: compiler flag combination prevents ld from finding libraries |
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I'm trying to build sci-biology/mauvealigner. I've located the error and how to get around it but I'm not sure how to edit the Makefile/how to get the ebuild to complete the operation.
| Code: | x86_64-pc-linux-gnu-g++ -O2 -funroll-loops -fomit-frame-pointer -ftree-vectorize -DCOMMAND_LINE -march=native -O2 -pipe -O2 -funroll-loops -fomit-frame-pointer -ftree-vectorize -Wl,-O1 -Wl,--as-needed -o mauveAligner mauveAligner.o -L/usr/lib -lMems-1.6 -lboost_system-mt -lboost_filesystem-mt -lboost_program_options-mt -lboost_iostreams-mt -lrt -lpthread -lGenome-1.3 -lMUSCLE-3.7
x86_64-pc-linux-gnu-g++ -O2 -funroll-loops -fomit-frame-pointer -ftree-vectorize -DCOMMAND_LINE -march=native -O2 -pipe -static -Wl,--whole-archive -lpthread -Wl,--no-whole-archive -Wl,-O1 -Wl,--as-needed -o mauveStatic mauveAligner.o -L/usr/lib -lMems-1.6 -lboost_system-mt -lboost_filesystem-mt -lboost_program_options-mt -lboost_iostreams-mt -lrt -lpthread -lGenome-1.3 -lMUSCLE-3.7
/usr/lib/gcc/x86_64-pc-linux-gnu/4.8.3/../../../../x86_64-pc-linux-gnu/bin/ld: cannot find -lboost_system-mt
/usr/lib/gcc/x86_64-pc-linux-gnu/4.8.3/../../../../x86_64-pc-linux-gnu/bin/ld: cannot find -lboost_filesystem-mt
/usr/lib/gcc/x86_64-pc-linux-gnu/4.8.3/../../../../x86_64-pc-linux-gnu/bin/ld: cannot find -lboost_program_options-mt
/usr/lib/gcc/x86_64-pc-linux-gnu/4.8.3/../../../../x86_64-pc-linux-gnu/bin/ld: cannot find -lboost_iostreams-mt |
The first compile works fine but the second one has issues, even though the same library is being referenced.
So far I've found 2 ways to get it to compile manually:
- remove the -static flag
- remove the -mt from the end of the boost libraries, they are symlinks to the same file afterall
Anyone know how I could make changes for the build to go through/how to fix the linker errors? |
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idiv0
n00b
Joined: 02 Nov 2014
Posts: 6
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| Posted: Thu Nov 27, 2014 1:07 pm Post subject: |
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This is a bit silly.
I forgot about static libraries and how they end in .a.
While libboost_system-mt.so was symlinked to libboost_system.so, there was no link from libboost_system-mt.a to libboost_system.a.
Creating the links caused the build to pass. |
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