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conan install openscenegraph/3.6.5@ --profile=/home/conan/w/BuildSingleReference/5511/83c5aa72-b286-492f-8d04-e3d6ccc20f07/profile.txt --build=openscenegraph
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Configuration:
[settings]
arch=x86_64
arch_build=x86_64
build_type=Debug
compiler=clang
compiler.libcxx=libc++
compiler.version=10
os=Linux
os_build=Linux
[options]
openscenegraph:shared=False
[build_requires]
[env]

openscenegraph/3.6.5: Forced build from source
Installing package: openscenegraph/3.6.5
Requirements
    brotli/1.0.9 from 'conan-center' - Cache
    bzip2/1.0.8 from 'conan-center' - Cache
    expat/2.2.10 from 'conan-center' - Cache
    fontconfig/2.13.92 from 'conan-center' - Cache
    freetype/2.10.4 from 'conan-center' - Cache
    giflib/5.2.1 from 'conan-center' - Cache
    jbig/20160605 from 'conan-center' - Cache
    libdeflate/1.7 from 'conan-upstream' - Cache
    libjpeg/9d from 'conan-center' - Cache
    libpng/1.6.37 from 'conan-center' - Cache
    libtiff/4.2.0 from 'conan-upstream' - Cache
    libuuid/1.0.3 from 'conan-center' - Cache
    libwebp/1.1.0 from 'conan-center' - Cache
    opengl/system from 'conan-center' - Cache
    openscenegraph/3.6.5 from 'conan-upstream' - Cache
    xorg/system from 'conan-center' - Cache
    xz_utils/5.2.5 from 'conan-center' - Cache
    zlib/1.2.11 from 'conan-center' - Cache
    zstd/1.4.8 from 'conan-center' - Cache
Packages
    brotli/1.0.9:72c3493baf37f6fd0e9e64ab36754d5a2f6479a9 - Cache
    bzip2/1.0.8:23219b68e873594c97b915e5b682fd61d2caca86 - Cache
    expat/2.2.10:72c3493baf37f6fd0e9e64ab36754d5a2f6479a9 - Cache
    fontconfig/2.13.92:d1e15036531c21c1042be651d165c8ae78f4de88 - Cache
    freetype/2.10.4:7c81318244ae90ae4401f48c7c35d83cda74da43 - Cache
    giflib/5.2.1:72c3493baf37f6fd0e9e64ab36754d5a2f6479a9 - Cache
    jbig/20160605:698989beb298914c2b0d0a2f03262b7828bd36d0 - Cache
    libdeflate/1.7:72c3493baf37f6fd0e9e64ab36754d5a2f6479a9 - Cache
    libjpeg/9d:72c3493baf37f6fd0e9e64ab36754d5a2f6479a9 - Cache
    libpng/1.6.37:4ada6b9b4eb17cabe936d1e8dc720431e269a9a3 - Cache
    libtiff/4.2.0:ac7e09be362153b18c9b6314f3a3d6a26eb8953f - Cache
    libuuid/1.0.3:72c3493baf37f6fd0e9e64ab36754d5a2f6479a9 - Cache
    libwebp/1.1.0:a09a552b2ea0e3af4ad938637eef2959778a4bcd - Cache
    opengl/system:5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9 - Cache
    openscenegraph/3.6.5:450a5d7d250d86fe2bf38813ba162e66c4e7e113 - Build
    xorg/system:5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9 - Cache
    xz_utils/5.2.5:72c3493baf37f6fd0e9e64ab36754d5a2f6479a9 - Cache
    zlib/1.2.11:72c3493baf37f6fd0e9e64ab36754d5a2f6479a9 - Cache
    zstd/1.4.8:72c3493baf37f6fd0e9e64ab36754d5a2f6479a9 - Cache

Installing (downloading, building) binaries...
brotli/1.0.9: Already installed!
[HOOK - conan-center.py] post_package_info(): [CMAKE FILE NOT IN BUILD FOLDERS (KB-H019)] OK
bzip2/1.0.8: Already installed!
[HOOK - conan-center.py] post_package_info(): [CMAKE FILE NOT IN BUILD FOLDERS (KB-H019)] OK
expat/2.2.10: Already installed!
[HOOK - conan-center.py] post_package_info(): [CMAKE FILE NOT IN BUILD FOLDERS (KB-H019)] OK
giflib/5.2.1: Already installed!
[HOOK - conan-center.py] post_package_info(): [CMAKE FILE NOT IN BUILD FOLDERS (KB-H019)] OK
jbig/20160605: Already installed!
jbig/20160605: Appending PATH environment variable: /home/conan/w/BuildSingleReference/.conan/data/jbig/20160605/_/_/package/698989beb298914c2b0d0a2f03262b7828bd36d0/bin
[HOOK - conan-center.py] post_package_info(): [CMAKE FILE NOT IN BUILD FOLDERS (KB-H019)] OK
libdeflate/1.7: Already installed!
[HOOK - conan-center.py] post_package_info(): [CMAKE FILE NOT IN BUILD FOLDERS (KB-H019)] OK
libjpeg/9d: Already installed!
[HOOK - conan-center.py] post_package_info(): [CMAKE FILE NOT IN BUILD FOLDERS (KB-H019)] OK
libuuid/1.0.3: Already installed!
[HOOK - conan-center.py] post_package_info(): [CMAKE FILE NOT IN BUILD FOLDERS (KB-H019)] OK
libwebp/1.1.0: Already installed!
[HOOK - conan-center.py] post_package_info(): [CMAKE FILE NOT IN BUILD FOLDERS (KB-H019)] OK
opengl/system: Already installed!
ERROR: opengl/system: Error in package_info() method, line 80
	self._fill_cppinfo_from_pkgconfig('gl')
while calling '_fill_cppinfo_from_pkgconfig', line 20
	if not pkg_config.provides:
	ConanException: pkg-config command ['pkg-config', '--print-provides', 'gl', '--print-errors'] failed with error: Command 'pkg-config --print-provides gl --print-errors' returned non-zero exit status 127.
/bin/sh: 1: pkg-config: not found