Auto detecting your dev setup to initialize the default profile (/tmp/c3ipr/pr_771_8_0_0/.conan/profiles/default)
CC and CXX: /usr/bin/gcc, /usr/bin/g++ 
Found gcc 5.4
gcc>=5, using the major as version

************************* WARNING: GCC OLD ABI COMPATIBILITY ***********************
 
Conan detected a GCC version > 5 but has adjusted the 'compiler.libcxx' setting to
'libstdc++' for backwards compatibility.
Your compiler is likely using the new CXX11 ABI by default (libstdc++11).

If you want Conan to use the new ABI for the default profile, run:

    $ conan profile update settings.compiler.libcxx=libstdc++11 default

Or edit '/tmp/c3ipr/pr_771_8_0_0/.conan/profiles/default' and set compiler.libcxx=libstdc++11

************************************************************************************



Default settings
	os=Linux
	os_build=Linux
	arch=x86_64
	arch_build=x86_64
	compiler=gcc
	compiler.version=5
	compiler.libcxx=libstdc++
	build_type=Release
*** You can change them in /tmp/c3ipr/pr_771_8_0_0/.conan/profiles/default ***
*** Or override with -s compiler='other' -s ...s***


[HOOK - conan-center.py] pre_export(): [DEPRECATED GLOBAL CPPSTD (KB-H001)] OK
[HOOK - conan-center.py] pre_export(): [REFERENCE LOWERCASE (KB-H002)] OK
[HOOK - conan-center.py] pre_export(): [RECIPE METADATA (KB-H003)] OK
[HOOK - conan-center.py] pre_export(): [HEADER_ONLY, NO COPY SOURCE (KB-H005)] OK
[HOOK - conan-center.py] pre_export(): [FPIC OPTION (KB-H006)] OK
[HOOK - conan-center.py] pre_export(): [VERSION RANGES (KB-H008)] OK
[HOOK - conan-center.py] pre_export(): [RECIPE FOLDER SIZE (KB-H009)] Total recipe size: 18.1669921875 KB
[HOOK - conan-center.py] pre_export(): [RECIPE FOLDER SIZE (KB-H009)] OK
[HOOK - conan-center.py] pre_export(): [EXPORT LICENSE (KB-H023)] exports: None
[HOOK - conan-center.py] pre_export(): [EXPORT LICENSE (KB-H023)] exports: None
[HOOK - conan-center.py] pre_export(): [EXPORT LICENSE (KB-H023)] OK
[HOOK - conan-center.py] pre_export(): [TEST PACKAGE FOLDER (KB-H024)] OK
[HOOK - conan-center.py] pre_export(): [META LINES (KB-H025)] OK
[HOOK - conan-center.py] pre_export(): [CONAN CENTER INDEX URL (KB-H027)] OK
[HOOK - conan-center.py] pre_export(): [CMAKE MINIMUM VERSION (KB-H028)] OK
[HOOK - conan-center.py] pre_export(): [TEST PACKAGE - RUN ENVIRONMENT (KB-H029)] OK
[HOOK - conan-center.py] pre_export(): [SYSTEM REQUIREMENTS (KB-H032)] OK
[HOOK - conan-center.py] pre_export(): [CONANDATA.YML FORMAT (KB-H030)] OK
[HOOK - conan-center.py] pre_export(): [TEST PACKAGE - NO IMPORTS() (KB-H034)] OK
[HOOK - conan-center.py] pre_export(): [NO AUTHOR (KB-H037)] OK
Exporting package recipe
libffi/3.2.1 exports: File 'conandata.yml' found. Exporting it...
libffi/3.2.1 exports: Copied 1 '.yml' file: conandata.yml
[HOOK - conan-center.py] post_export(): [CONANDATA.YML REDUCE (KB-H031)] Saving conandata.yml: {'sources': {'3.2.1': {'url': 'https://sourceware.org/pub/libffi/libffi-3.2.1.tar.gz', 'sha256': 'd06ebb8e1d9a22d19e38d63fdb83954253f39bedc5d46232a05645685722ca37'}}}
[HOOK - conan-center.py] post_export(): [CONANDATA.YML REDUCE (KB-H031)] New conandata.yml contents: sources:
  3.2.1:
    sha256: d06ebb8e1d9a22d19e38d63fdb83954253f39bedc5d46232a05645685722ca37
    url: https://sourceware.org/pub/libffi/libffi-3.2.1.tar.gz

[HOOK - conan-center.py] post_export(): [CONANDATA.YML REDUCE (KB-H031)] OK
libffi/3.2.1: A new conanfile.py version was exported
libffi/3.2.1: Folder: /tmp/c3ipr/pr_771_8_0_0/.conan/data/libffi/3.2.1/_/_/export
libffi/3.2.1: Using the exported files summary hash as the recipe revision: 7073d0b0f82755d91312e3d932d6d974 
libffi/3.2.1: Exported revision: 7073d0b0f82755d91312e3d932d6d974
Configuration:
[settings]
arch=x86_64
arch_build=x86_64
build_type=Release
compiler=gcc
compiler.libcxx=libstdc++
compiler.version=5
os=Linux
os_build=Linux
[options]
libffi:shared=True
[build_requires]
[env]

libffi/3.2.1: Forced build from source
libffi/3.2.1 (test package): Installing package
Requirements
    libffi/3.2.1 from local cache - Cache
Packages
    libffi/3.2.1:e30939caa2339df448fcf9917da7b5ebc54646b6 - Build

[HOOK - conan-center.py] pre_source(): [IMMUTABLE SOURCES (KB-H010)] OK
libffi/3.2.1: Configuring sources in /tmp/c3ipr/pr_771_8_0_0/.conan/data/libffi/3.2.1/_/_/source



[HOOK - conan-center.py] post_source(): [LIBCXX MANAGEMENT (KB-H011)] OK
[HOOK - conan-center.py] post_source(): [CPPSTD MANAGEMENT (KB-H022)] OK
libffi/3.2.1: Copying sources to build folder
libffi/3.2.1: Building your package in /tmp/c3ipr/pr_771_8_0_0/.conan/data/libffi/3.2.1/_/_/build/e30939caa2339df448fcf9917da7b5ebc54646b6
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: 

JSON file created at '/tmp/c3ipr/pr_771_8_0_0/_create.json'