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conan install openscenegraph/3.6.5@ --profile=/home/conan/w/BuildSingleReference/5511/5c781ae5-e1a6-42e1-8d27-cfcc44772a11/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=11
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/1.0.9:05441c20e7e7a68951563eb6a1ae544f71dd7263 - Cache
    bzip2/1.0.8:7c724e376772c2af7fcf54897249a8e186ca8ccd - Cache
    expat/2.2.10:05441c20e7e7a68951563eb6a1ae544f71dd7263 - Cache
    fontconfig/2.13.92:281bae9ed8c729f567e49c0c9f4271dadf675093 - Cache
    freetype/2.10.4:d12350f0e3749a71c964b501a14ce46110a6cb34 - Cache
    giflib/5.2.1:05441c20e7e7a68951563eb6a1ae544f71dd7263 - Cache
    jbig/20160605:e6a6ccfbd74905f8723823a50f21b8d630d79528 - Cache
    libdeflate/1.7:05441c20e7e7a68951563eb6a1ae544f71dd7263 - Cache
    libjpeg/9d:05441c20e7e7a68951563eb6a1ae544f71dd7263 - Cache
    libpng/1.6.37:404098f489e29bd5371adc2f28041a804615ba8a - Cache
    libtiff/4.2.0:eda38a53f216a2710019f42ae0785b7581822323 - Cache
    libuuid/1.0.3:05441c20e7e7a68951563eb6a1ae544f71dd7263 - Cache
    libwebp/1.1.0:7a56a58d2c1ac15278dc6cb162cc919f52e67666 - Cache
    opengl/system:5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9 - Cache
    openscenegraph/3.6.5:167b0dd4e9108f1d4be198de60c2cb32bf2a5cb0 - Build
    xorg/system:5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9 - Cache
    xz_utils/5.2.5:05441c20e7e7a68951563eb6a1ae544f71dd7263 - Cache
    zlib/1.2.11:05441c20e7e7a68951563eb6a1ae544f71dd7263 - Cache
    zstd/1.4.8:05441c20e7e7a68951563eb6a1ae544f71dd7263 - 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/e6a6ccfbd74905f8723823a50f21b8d630d79528/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