********************************************************************************
conan install boost/1.71.0@ --profile=/home/conan/w/BuildSingleReference/8685/b4dd1083-346a-4d10-92be-8babb98ef462/profile.txt --build=boost
********************************************************************************
Configuration:
[settings]
arch=x86_64
arch_build=x86_64
build_type=Release
compiler=gcc
compiler.libcxx=libstdc++
compiler.version=4.9
os=Linux
os_build=Linux
[options]
boost:shared=True
[build_requires]
[env]

boost/1.71.0: Forced build from source
Installing package: boost/1.71.0
Requirements
    boost/1.71.0 from local cache - Cache
    bzip2/1.0.8 from 'conan-center' - Cache
    libiconv/1.16 from 'conan-center' - Cache
    zlib/1.2.11 from 'conan-center' - Cache
Packages
    boost/1.71.0:6f7708ed09d66dc49aabdba123ab8bfdf4c28e11 - Build
    bzip2/1.0.8:265fe50d0eb37ba5622b44b8e555406ac0cd6c8b - Cache
    libiconv/1.16:b869e6c05cb587ad588e5ec485deb62012ec7b93 - Cache
    zlib/1.2.11:b869e6c05cb587ad588e5ec485deb62012ec7b93 - Cache
Build requirements
    b2/4.2.0 from 'conan-center' - Cache
Build requirements packages
    b2/4.2.0:4db1be536558d833e52e862fd84d64d75c2b3656 - Cache

Installing (downloading, building) binaries...
b2/4.2.0: Already installed!
[HOOK - conan-center.py] post_package_info(): [CMAKE FILE NOT IN BUILD FOLDERS (KB-H019)] OK
[HOOK - conan-center.py] post_package_info(): [LIBRARY DOES NOT EXIST (KB-H054)] OK
bzip2/1.0.8: Already installed!
bzip2/1.0.8: Appending PATH environment variable: /home/conan/w/BuildSingleReference/.conan/data/bzip2/1.0.8/_/_/package/265fe50d0eb37ba5622b44b8e555406ac0cd6c8b/bin
[HOOK - conan-center.py] post_package_info(): [CMAKE FILE NOT IN BUILD FOLDERS (KB-H019)] OK
[HOOK - conan-center.py] post_package_info(): [LIBRARY DOES NOT EXIST (KB-H054)] OK
libiconv/1.16: Already installed!
libiconv/1.16: Appending PATH environment var: /home/conan/w/BuildSingleReference/.conan/data/libiconv/1.16/_/_/package/b869e6c05cb587ad588e5ec485deb62012ec7b93/bin
[HOOK - conan-center.py] post_package_info(): [CMAKE FILE NOT IN BUILD FOLDERS (KB-H019)] OK
[HOOK - conan-center.py] post_package_info(): [LIBRARY DOES NOT EXIST (KB-H054)] OK
zlib/1.2.11: Already installed!
[HOOK - conan-center.py] post_package_info(): [CMAKE FILE NOT IN BUILD FOLDERS (KB-H019)] OK
[HOOK - conan-center.py] post_package_info(): [LIBRARY DOES NOT EXIST (KB-H054)] OK
boost/1.71.0: Applying build-requirement: b2/4.2.0
boost/1.71.0: Building your package in /home/conan/w/BuildSingleReference/.conan/data/boost/1.71.0/_/_/build/6f7708ed09d66dc49aabdba123ab8bfdf4c28e11
boost/1.71.0: Generator txt created conanbuildinfo.txt
[HOOK - conan-center.py] pre_build(): [FPIC MANAGEMENT (KB-H007)] 'fPIC' option not found
[HOOK - conan-center.py] pre_build(): [FPIC MANAGEMENT (KB-H007)] OK
boost/1.71.0: Calling build()
boost/1.71.0: 
b2/4.2.0: WARN: Lib folder doesn't exist, can't collect libraries: /home/conan/w/BuildSingleReference/.conan/data/b2/4.2.0/_/_/package/4db1be536558d833e52e862fd84d64d75c2b3656/lib
[HOOK - conan-center.py] post_package_info(): WARN: [LIBRARY DOES NOT EXIST (KB-H054)] Component b2::b2 libdir "lib" does not contain any library
[HOOK - conan-center.py] post_package_info(): WARN: [LIBRARY DOES NOT EXIST (KB-H054)] Component b2::b2 libdir "lib" does not contain any declared library
boost/1.71.0: WARN: Build folder is dirty, removing it: /home/conan/w/BuildSingleReference/.conan/data/boost/1.71.0/_/_/build/6f7708ed09d66dc49aabdba123ab8bfdf4c28e11
boost/1.71.0: WARN: Patching user-config.jam
boost/1.71.0: WARN: 
using zlib : 1.2.11 : <include>"/home/conan/w/BuildSingleReference/.conan/data/zlib/1.2.11/_/_/package/b869e6c05cb587ad588e5ec485deb62012ec7b93/include" <search>"/home/conan/w/BuildSingleReference/.conan/data/zlib/1.2.11/_/_/package/b869e6c05cb587ad588e5ec485deb62012ec7b93/lib" <name>z ;
using bzip2 : 1.0.8 : <include>"/home/conan/w/BuildSingleReference/.conan/data/bzip2/1.0.8/_/_/package/265fe50d0eb37ba5622b44b8e555406ac0cd6c8b/include" <search>"/home/conan/w/BuildSingleReference/.conan/data/bzip2/1.0.8/_/_/package/265fe50d0eb37ba5622b44b8e555406ac0cd6c8b/lib" <name>bz2 ;
using "gcc" :  :  /usr/bin/g++ : 
 ;
boost/1.71.0: ERROR: Package '6f7708ed09d66dc49aabdba123ab8bfdf4c28e11' build failed
boost/1.71.0: WARN: Build folder /home/conan/w/BuildSingleReference/.conan/data/boost/1.71.0/_/_/build/6f7708ed09d66dc49aabdba123ab8bfdf4c28e11
ERROR: boost/1.71.0: Error in build() method, line 663
	b2_flags = " ".join(self._build_flags)
while calling '_build_flags', line 836
	if self.options.fPIC:
	ConanException: option 'fPIC' doesn't exist
Possible options are ['shared', 'header_only', 'error_code_header_only', 'system_no_deprecated', 'asio_no_deprecated', 'filesystem_no_deprecated', 'layout', 'magic_autolink', 'diagnostic_definitions', 'python_executable', 'python_version', 'namespace', 'namespace_alias', 'multithreading', 'zlib', 'bzip2', 'lzma', 'zstd', 'segmented_stacks', 'debug_level', 'pch', 'extra_b2_flags', 'i18n_backend', 'visibility', 'without_atomic', 'without_chrono', 'without_container', 'without_context', 'without_contract', 'without_coroutine', 'without_date_time', 'without_exception', 'without_fiber', 'without_filesystem', 'without_graph', 'without_graph_parallel', 'without_iostreams', 'without_locale', 'without_log', 'without_math', 'without_mpi', 'without_program_options', 'without_python', 'without_random', 'without_regex', 'without_serialization', 'without_stacktrace', 'without_system', 'without_test', 'without_thread', 'without_timer', 'without_type_erasure', 'without_wave']