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conan install libmad/0.15.1b@ --build=libmad --profile=/home/conan/w/BuildSingleReference/20961/f5af3a28-0064-452f-914c-dd161f148052/profile.txt
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Configuration:
[settings]
arch=x86_64
arch_build=x86_64
build_type=Debug
compiler=gcc
compiler.libcxx=libstdc++
compiler.version=4.9
os=Linux
os_build=Linux
[options]
libmad:shared=True
[build_requires]
[env]

libmad/0.15.1b: Forced build from source
Installing package: libmad/0.15.1b
Requirements
    libmad/0.15.1b from local cache - Cache
Packages
    libmad/0.15.1b:4c1e28fd5a4bc95f5d58d65e681471e51dbc3d1a - Build

Installing (downloading, building) binaries...
libmad/0.15.1b: Copying sources to build folder
libmad/0.15.1b: Building your package in /home/conan/w/BuildSingleReference/.conan/data/libmad/0.15.1b/_/_/build/4c1e28fd5a4bc95f5d58d65e681471e51dbc3d1a
libmad/0.15.1b: Generator txt created conanbuildinfo.txt
libmad/0.15.1b: 
libmad/0.15.1b: WARN: Build folder is dirty, removing it: /home/conan/w/BuildSingleReference/.conan/data/libmad/0.15.1b/_/_/build/4c1e28fd5a4bc95f5d58d65e681471e51dbc3d1a
[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) 
libmad/0.15.1b: ERROR: Package '4c1e28fd5a4bc95f5d58d65e681471e51dbc3d1a' build failed
libmad/0.15.1b: WARN: Build folder /home/conan/w/BuildSingleReference/.conan/data/libmad/0.15.1b/_/_/build/4c1e28fd5a4bc95f5d58d65e681471e51dbc3d1a
ERROR: [HOOK - conan-center.py] pre_build(): Some checks failed running the hook, check the output