id,summary,reporter,owner,description,type,status,milestone,component,version,severity,resolution,keywords,cc
12962,user overridden cxxflags are not honored for the compilation of some libraries,sascha.kratky@…,,"Upon linking `libboost_regex-mt.a` to a shared library I am getting the error:

{{{
/usr/bin/ld: /usr/local/lib/libboost_regex-mt.a(instances.o): relocation R_X86_64_32S against `.rodata' can not be used when making a shared object; recompile with -fPIC
/usr/local/lib/libboost_regex-mt.a: could not read symbols: Bad value
}}}

I am building boost with `-fPIC` by running bjam with the following options:

{{{
./bjam '-sBUILD=<cflags>-fPIC <cxxflags>-fPIC <linkflags>-fPIC' --without-mpi --without-python --without-iostreams --layout=tagged link=shared,static
}}}

bjam does not seem to honor the `-fPIC` flag upon compilation of `libboost_regex-mt`:

{{{
gcc.compile.c++ bin.v2/libs/regex/build/gcc-4.8/release/link-static/threading-multi/instances.o

    ""g++""  -ftemplate-depth-128 -O3 -finline-functions -Wno-inline -Wall -pedantic -pthread -m64  -DBOOST_ALL_NO_LIB=1 -DNDEBUG  -I""."" -c -o ""bin.v2/libs/regex/build/gcc-4.8/release/link-static/threading-multi/instances.o"" ""libs/regex/build/../src/instances.cpp""
}}}

Looking at the bjam debug log, there seem to be many libraries where user overridden cxxflags are not honored for the compilation. These include `libboost_math_tr1-mt.a`, `libboost_program_options-mt.a`, `libboost_signals-mt.a`, `libboost_locale-mt.a` and others.",Bugs,new,To Be Determined,Building Boost,Boost 1.63.0,Problem,,,