Ceph

I get this error from time to time (since a few months) when building from source:

[ 20%] Linking CXX shared library ../../../lib/libceph_zstd.so
/usr/bin/ld: libzstd/lib/libzstd.a(error_private.c.o): relocation R_X86_64_PC32 against symbol `ERR_getErrorString' can not be used when making a shared object; recompile with -fPIC
/usr/bin/ld: final link failed: Bad value
collect2: error: ld returned 1 exit status
src/compressor/zstd/CMakeFiles/ceph_zstd.dir/build.make:95: die Regel für Ziel „lib/libceph_zstd.so.2.0.0“ scheiterte
make[2]: *** [lib/libceph_zstd.so.2.0.0] Fehler 1
CMakeFiles/Makefile2:20785: die Regel für Ziel „src/compressor/zstd/CMakeFiles/ceph_zstd.dir/all“ scheiterte
make[1]: *** [src/compressor/zstd/CMakeFiles/ceph_zstd.dir/all] Fehler 2
make[1]: *** Auf noch nicht beendete Prozesse wird gewartet …

This happens mostly after calling make multiple times without a full rebuild for a longer period of time.

Removing the build files helps as a workaround:

rm -r build/src/compressor/zstd

Environment:

• Ubuntu 17.10
• GNU ld (GNU Binutils for Ubuntu) 2.29.1
• g++ (Ubuntu 7.2.0-8ubuntu3) 7.2.0
• cmake version 3.9.1
• git on master for the last few months.