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conan install opencl-headers/2021.04.29@ --profile=/home/conan/w/BuildSingleReference/10940/e0f0b3c7-d4de-4ee4-b30c-973ec5fc50e7/profile.txt --build=opencl-headers
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Auto detecting your dev setup to initialize the default profile (/home/conan/w/BuildSingleReference/.conan/profiles/default)
CC and CXX: /usr/bin/gcc, /usr/bin/g++ 
Found gcc 4.9
Default settings
	os=Linux
	os_build=Linux
	arch=x86_64
	arch_build=x86_64
	compiler=gcc
	compiler.version=4.9
	compiler.libcxx=libstdc++
	build_type=Release
*** You can change them in /home/conan/w/BuildSingleReference/.conan/profiles/default ***
*** Or override with -s compiler='other' -s ...s***


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]
[build_requires]
[env]

opencl-headers/2021.04.29: Forced build from source
Installing package: opencl-headers/2021.04.29
Requirements
    opencl-headers/2021.04.29 from local cache - Cache
Packages
    opencl-headers/2021.04.29:5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9 - Build

Installing (downloading, building) binaries...
[HOOK - conan-center.py] pre_source(): [IMMUTABLE SOURCES (KB-H010)] OK
opencl-headers/2021.04.29: Configuring sources in /home/conan/w/BuildSingleReference/.conan/data/opencl-headers/2021.04.29/_/_/source

[HOOK - conan-center.py] post_source(): [LIBCXX MANAGEMENT (KB-H011)] OK
[HOOK - conan-center.py] post_source(): [CPPSTD MANAGEMENT (KB-H022)] OK
opencl-headers/2021.04.29: Building your package in /home/conan/w/BuildSingleReference/.conan/data/opencl-headers/2021.04.29/_/_/build/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9
opencl-headers/2021.04.29: 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
opencl-headers/2021.04.29: Calling build()
opencl-headers/2021.04.29: Package '5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9' built
opencl-headers/2021.04.29: Build folder /home/conan/w/BuildSingleReference/.conan/data/opencl-headers/2021.04.29/_/_/build/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9
opencl-headers/2021.04.29: Generated conaninfo.txt
opencl-headers/2021.04.29: Generated conanbuildinfo.txt
opencl-headers/2021.04.29: Generating the package
opencl-headers/2021.04.29: Package folder /home/conan/w/BuildSingleReference/.conan/data/opencl-headers/2021.04.29/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9
opencl-headers/2021.04.29: Calling package()
[HOOK - conan-center.py] post_package(): [PACKAGE LICENSE (KB-H012)] OK
[HOOK - conan-center.py] post_package(): [DEFAULT PACKAGE LAYOUT (KB-H013)] OK
[HOOK - conan-center.py] post_package(): [MATCHING CONFIGURATION (KB-H014)] OK
[HOOK - conan-center.py] post_package(): [SHARED ARTIFACTS (KB-H015)] OK
[HOOK - conan-center.py] post_package(): [PC-FILES (KB-H020)] OK
[HOOK - conan-center.py] post_package(): [CMAKE-MODULES-CONFIG-FILES (KB-H016)] OK
[HOOK - conan-center.py] post_package(): [PDB FILES NOT ALLOWED (KB-H017)] OK
[HOOK - conan-center.py] post_package(): [LIBTOOL FILES PRESENCE (KB-H018)] OK
[HOOK - conan-center.py] post_package(): [MS RUNTIME FILES (KB-H021)] OK
opencl-headers/2021.04.29 package(): Packaged 1 file: LICENSE
opencl-headers/2021.04.29 package(): Packaged 17 '.h' files
opencl-headers/2021.04.29: Package '5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9' created
opencl-headers/2021.04.29: Created package revision e63b854831cc8c1d60ed095ac8e4d9a5
[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
opencl-headers/2021.04.29: WARN: This conanfile has no build step
opencl-headers/2021.04.29: WARN: Lib folder doesn't exist, can't collect libraries: /home/conan/w/BuildSingleReference/.conan/data/opencl-headers/2021.04.29/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/lib
opencl-headers/2021.04.29: WARN: Lib folder doesn't exist, can't collect libraries: /home/conan/w/BuildSingleReference/.conan/data/opencl-headers/2021.04.29/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/lib