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conan install libffi/3.2.1@ --profile=/home/conan/w/BuildSingleReference/11592/3e0389cf-9a79-49f2-8b01-f242a73af748/profile.txt --build=libffi
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Configuration:
[settings]
arch=x86_64
arch_build=x86_64
build_type=Release
compiler=clang
compiler.libcxx=libstdc++
compiler.version=6.0
os=Linux
os_build=Linux
[options]
libffi:shared=False
[build_requires]
[env]

libffi/3.2.1: Forced build from source
Installing package: libffi/3.2.1
Requirements
    libffi/3.2.1 from local cache - Cache
Packages
    libffi/3.2.1:69992a588026a3e14cd49c40ed17369c46d8d3a5 - Build
Build requirements
    gnu-config/cci.20201022 from 'conan-center' - Cache
Build requirements packages
    gnu-config/cci.20201022:5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9 - Cache

Installing (downloading, building) binaries...
gnu-config/cci.20201022: Already installed!
gnu-config/cci.20201022: Appending PATH environment variable: /home/conan/w/BuildSingleReference/.conan/data/gnu-config/cci.20201022/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/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
libffi/3.2.1: Applying build-requirement: gnu-config/cci.20201022
libffi/3.2.1: Copying sources to build folder
libffi/3.2.1: Building your package in /home/conan/w/BuildSingleReference/.conan/data/libffi/3.2.1/_/_/build/69992a588026a3e14cd49c40ed17369c46d8d3a5
libffi/3.2.1: Generator txt created conanbuildinfo.txt
[HOOK - conan-center.py] pre_build(): [FPIC MANAGEMENT (KB-H007)] OK. 'fPIC' option found and apparently well managed
[HOOK - conan-center.py] pre_build(): [FPIC MANAGEMENT (KB-H007)] OK
libffi/3.2.1: Calling build()
libffi/3.2.1: Calling:
 > source_subfolder/configure '--enable-debug=no' '--enable-shared=no' '--enable-static=yes' '--prefix=/home/conan/w/BuildSingleReference/.conan/data/libffi/3.2.1/_/_/package/69992a588026a3e14cd49c40ed17369c46d8d3a5' '--bindir=${prefix}/bin' '--sbindir=${prefix}/bin' '--libexecdir=${prefix}/bin' '--libdir=${prefix}/lib' '--includedir=${prefix}/include' '--oldincludedir=${prefix}/include' '--datarootdir=${prefix}/share' 

----Running------
> source_subfolder/configure '--enable-debug=no' '--enable-shared=no' '--enable-static=yes' '--prefix=/home/conan/w/BuildSingleReference/.conan/data/libffi/3.2.1/_/_/package/69992a588026a3e14cd49c40ed17369c46d8d3a5' '--bindir=${prefix}/bin' '--sbindir=${prefix}/bin' '--libexecdir=${prefix}/bin' '--libdir=${prefix}/lib' '--includedir=${prefix}/include' '--oldincludedir=${prefix}/include' '--datarootdir=${prefix}/share' 
-----------------
checking build system type... x86_64-unknown-linux-gnu
checking host system type... x86_64-unknown-linux-gnu
checking target system type... x86_64-unknown-linux-gnu
checking for gsed... sed
checking for a BSD-compatible install... /usr/bin/install -c
checking whether build environment is sane... yes
checking for a thread-safe mkdir -p... /bin/mkdir -p
checking for gawk... no
checking for mawk... mawk
checking whether make sets $(MAKE)... yes
checking whether make supports nested variables... yes
checking for gcc... clang
checking whether the C compiler works... yes
checking for C compiler default output file name... a.out
checking for suffix of executables... 
checking whether we are cross compiling... no
checking for suffix of object files... o
checking whether we are using the GNU C compiler... yes
checking whether clang accepts -g... yes
checking for clang option to accept ISO C89... none needed
checking for style of include used by make... GNU
checking dependency style of clang... gcc3
checking whether we are using the GNU C++ compiler... yes
checking whether clang++ accepts -g... yes
checking dependency style of clang++... gcc3
checking dependency style of clang... gcc3
checking whether clang and cc understand -c and -o together... yes
checking how to print strings... printf
checking for a sed that does not truncate output... /bin/sed
checking for grep that handles long lines and -e... /bin/grep
checking for egrep... /bin/grep -E
checking for fgrep... /bin/grep -F
checking for ld used by clang... /usr/bin/ld
checking if the linker (/usr/bin/ld) is GNU ld... yes
checking for BSD- or MS-compatible name lister (nm)... /usr/bin/nm -B
checking the name lister (/usr/bin/nm -B) interface... BSD nm
checking whether ln -s works... yes
checking the maximum length of command line arguments... 1572864
checking whether the shell understands some XSI constructs... yes
checking whether the shell understands "+="... yes
checking how to convert x86_64-unknown-linux-gnu file names to x86_64-unknown-linux-gnu format... func_convert_file_noop
checking how to convert x86_64-unknown-linux-gnu file names to toolchain format... func_convert_file_noop
checking for /usr/bin/ld option to reload object files... -r
checking for objdump... objdump
checking how to recognize dependent libraries... pass_all
checking for dlltool... no
checking how to associate runtime and link libraries... printf %s\n
checking for ar... ar
checking for archiver @FILE support... @
checking for strip... strip
checking for ranlib... ranlib
checking command to parse /usr/bin/nm -B output from clang object... ok
checking for sysroot... no
checking for mt... no
checking if : is a manifest tool... no
checking how to run the C preprocessor... clang -E
checking for ANSI C header files... yes
checking for sys/types.h... yes
checking for sys/stat.h... yes
checking for stdlib.h... yes
checking for string.h... yes
checking for memory.h... yes
checking for strings.h... yes
checking for inttypes.h... yes
checking for stdint.h... yes
checking for unistd.h... yes
checking for dlfcn.h... yes
checking for objdir... .libs
checking if clang supports -fno-rtti -fno-exceptions... yes
checking for clang option to produce PIC... -fPIC -DPIC
checking if clang PIC flag -fPIC -DPIC works... yes
checking if clang static flag -static works... yes
checking if clang supports -c -o file.o... no
checking if clang supports -c -o file.o... (cached) no
checking if we can lock with hard links... Received SIGTERM!
rmdir: failed to remove 'out': Directory not empty
gnu-config/cci.20201022: WARN: Lib folder doesn't exist, can't collect libraries: /home/conan/w/BuildSingleReference/.conan/data/gnu-config/cci.20201022/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/lib
ERROR: Exiting with code: 5