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conan install xorg/system@ --build=xorg --profile=/home/conan/w/BuildSingleReference/60101/27ae8acb-7400-4182-9532-75727fefacae/profile.txt
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Configuration:
[settings]
arch=x86_64
build_type=Release
compiler=gcc
compiler.libcxx=libstdc++11
compiler.version=5
os=Linux
[options]
[build_requires]
[env]

xorg/system: Forced build from source
Installing package: xorg/system
Requirements
    xorg/system from local cache - Cache
Packages
    xorg/system:5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9 - Build

Installing (downloading, building) binaries...
xorg/system: Copying sources to build folder
xorg/system: Building your package in /home/conan/w/BuildSingleReference/.conan/data/xorg/system/_/_/build/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9
xorg/system: Generator txt created conanbuildinfo.txt
xorg/system: Aggregating env generators
[HOOK - conan-center.py] pre_build(): [FPIC MANAGEMENT (KB-H007)] 'fPIC' option not found
[HOOK - conan-center.py] pre_build(): [FPIC MANAGEMENT (KB-H007)] OK
xorg/system: Calling build()
xorg/system: Package '5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9' built
xorg/system: Build folder /home/conan/w/BuildSingleReference/.conan/data/xorg/system/_/_/build/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9
xorg/system: Generated conaninfo.txt
xorg/system: Generated conanbuildinfo.txt
xorg/system: Generating the package
xorg/system: Package folder /home/conan/w/BuildSingleReference/.conan/data/xorg/system/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9
xorg/system: Calling package()
[HOOK - conan-center.py] post_package(): [PACKAGE LICENSE (KB-H012)] OK
[HOOK - conan-center.py] post_package(): [DEFAULT PACKAGE LAYOUT (KB-H013)] OK
[HOOK - conan-center.py] post_package(): [MATCHING CONFIGURATION (KB-H014)] OK
[HOOK - conan-center.py] post_package(): [SHARED ARTIFACTS (KB-H015)] OK
[HOOK - conan-center.py] post_package(): [PC-FILES (KB-H020)] OK
[HOOK - conan-center.py] post_package(): [CMAKE-MODULES-CONFIG-FILES (KB-H016)] OK
[HOOK - conan-center.py] post_package(): [PDB FILES NOT ALLOWED (KB-H017)] OK
[HOOK - conan-center.py] post_package(): [LIBTOOL FILES PRESENCE (KB-H018)] OK
[HOOK - conan-center.py] post_package(): [MS RUNTIME FILES (KB-H021)] OK
xorg/system: Package '5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9' created
xorg/system: Created package revision b8b1cc1df59199130983143c9176e97c
xorg/system: WARN: This conanfile has no build step
xorg/system: WARN: This conanfile has no package step
xorg/system package(): WARN: No files in this package!
ERROR: xorg/system: Error in package_info() method, line 97
	self._fill_cppinfo_from_pkgconfig(name)
while calling '_fill_cppinfo_from_pkgconfig', line 24
	if not pkg_config.provides:
	ConanException: pkg-config command ['pkg-config', '--print-provides', 'xaw7', '--print-errors'] failed with error: Command 'pkg-config --print-provides xaw7 --print-errors' returned non-zero exit status 1.
Package xaw7 was not found in the pkg-config search path.
Perhaps you should add the directory containing `xaw7.pc'
to the PKG_CONFIG_PATH environment variable
No package 'xaw7' found