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conan install libbsd/0.10.0@ --profile=/home/conan/w/BuildSingleReference/1790/24ce555c-01c7-4cf4-acc0-3bea9a59911a/profile.txt --build=libbsd
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Configuration:
[settings]
arch=x86_64
arch_build=x86_64
build_type=Debug
compiler=clang
compiler.libcxx=libstdc++
compiler.version=10
os=Linux
os_build=Linux
[options]
libbsd:shared=True
[build_requires]
[env]

libbsd/0.10.0: Forced build from source
Installing package: libbsd/0.10.0
Requirements
    libbsd/0.10.0 from 'conan-upstream' - Cache
Packages
    libbsd/0.10.0:f9ef8d26d66d633c5de261aa8b143b247793ec76 - Build
Build requirements
    autoconf/2.69 from 'conan-center' - Cache
    automake/1.16.2 from 'conan-center' - Cache
    libtool/2.4.6 from 'conan-center' - Cache
    m4/1.4.18 from 'conan-center' - Cache
Build requirements packages
    autoconf/2.69:cb054d0b3e1ca595dc66bc2339d40f1f8f04ab31 - Download
    automake/1.16.2:258f6f05ca54813b3d7180161753df7f9ccf7e1d - Download
    libtool/2.4.6:99862aff33ecc6b40f05cc525b558780f5db8cac - Missing
    m4/1.4.18:227182a897cec2eb774e04227a2d618f056690f5 - Download

Installing (downloading, building) binaries...

ERROR: Missing binary: libtool/2.4.6:99862aff33ecc6b40f05cc525b558780f5db8cac
libtool/2.4.6: WARN: Can't find a 'libtool/2.4.6' package for the specified settings, options and dependencies:
- Settings: arch=x86_64, build_type=Debug, compiler=clang, compiler.version=10, os=Linux
- Options: fPIC=True, shared=False
- Dependencies: automake/1.16.2
- Requirements: automake/1.Y.Z
- Package ID: 99862aff33ecc6b40f05cc525b558780f5db8cac

ERROR: Missing prebuilt package for 'libtool/2.4.6'
Try to build from sources with '--build=libtool'
Use 'conan search <reference> --table table.html'
Or read 'http://docs.conan.io/en/latest/faq/troubleshooting.html#error-missing-prebuilt-package'