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conan install libpng/1.6.37@ --build=libpng --profile=/Users/jenkins/w/BuildSingleReference@4/21590/c58c8ec0-f7e2-4cb0-b905-04488baa94c5/profile.txt
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Configuration:
[settings]
arch=x86_64
arch_build=x86_64
build_type=Debug
compiler=apple-clang
compiler.libcxx=libc++
compiler.version=10.0
os=Macos
os_build=Macos
[options]
libpng:shared=True
[build_requires]
[env]

libpng/1.6.37: Forced build from source
Installing package: libpng/1.6.37
Requirements
    libpng/1.6.37 from local cache - Cache
    zlib/1.2.11 from 'conan-center' - Cache
Packages
    libpng/1.6.37:0b9ae1b063045473292c06825d4853bac2ea3873 - Build
    zlib/1.2.11:1513b3452ef7e2a2dd5f931247c5e02edeb98cc9 - Cache

Installing (downloading, building) binaries...
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
libpng/1.6.37: Copying sources to build folder
libpng/1.6.37: Building your package in /Users/jenkins/w/BuildSingleReference@4/.conan/data/libpng/1.6.37/_/_/build/0b9ae1b063045473292c06825d4853bac2ea3873
libpng/1.6.37: Generator cmake_find_package created FindZLIB.cmake
libpng/1.6.37: Generator cmake created conanbuildinfo.cmake
libpng/1.6.37: 
libpng/1.6.37: WARN: Build folder is dirty, removing it: /Users/jenkins/w/BuildSingleReference@4/.conan/data/libpng/1.6.37/_/_/build/0b9ae1b063045473292c06825d4853bac2ea3873
[HOOK - conan-center.py] pre_build(): ERROR: [FPIC MANAGEMENT (KB-H007)] 'fPIC' option not managed correctly. Please remove it for shared option: del self.options.fpic (https://github.com/conan-io/conan-center-index/blob/master/docs/error_knowledge_base.md#KB-H007) 
libpng/1.6.37: ERROR: Package '0b9ae1b063045473292c06825d4853bac2ea3873' build failed
libpng/1.6.37: WARN: Build folder /Users/jenkins/w/BuildSingleReference@4/.conan/data/libpng/1.6.37/_/_/build/0b9ae1b063045473292c06825d4853bac2ea3873
ERROR: [HOOK - conan-center.py] pre_build(): Some checks failed running the hook, check the output