[C++][Python] glog 0.7 fix breaks downstream packages #40274
Description
Describe the bug, including details regarding any error messages, version, and platform.
After applying #40230 to the cpp library and building with glog 0.7. Anything building with ArrowConfig.cmake now fails. For example a pyarrow wheel build:
[ 31s] CMake Error at CMakeLists.txt:268 (find_package):
[ 31s] Found package configuration file:
[ 31s]
[ 31s] /usr/lib64/cmake/Arrow/ArrowConfig.cmake
[ 31s]
[ 31s] but it set Arrow_FOUND to FALSE so package "Arrow" is considered to be NOT
[ 31s] FOUND. Reason given by package:
[ 31s]
[ 31s] Arrow could not be found because dependency GLOG could not be found.
[ 31s]
[ 31s]
[ 31s]
[ 31s] -- Configuring incomplete, errors occurred!
This was not the case before.
The build fails because ArrowConfig.cmake requires but cannot find uppercase GLOG.
Originally posted by @bnavigator in #40230 (comment)
Component(s)
C++, Python