cmake wants to write a file to /usr/local/bin

[Lotharyx]

I'm of the opinion that building should never require elevated permissions. IMHO, that includes writing anywhere an unprivileged user generally isn't allowed to write, including /usr/local/bin (on my system, owned by root with 1755 mode).

When I do the typical CMake build operation of...

$ cmake ../

in the build directory I create inside my local working copy, CMake fails on CMakeLists.txt line 917 as it tries to write to /usr/local/bin/custom.sh . Full CMake output at the end here.

Such a file already existed on my system, and so I worked around this issue by changing the ownership of that script to my unprivileged user...but I think it's very strange that CMake is trying to write to a privileged location, and suggest that CMakeLists.txt be modified so that it writes that script somewhere unprivileged; ideally within the build directory tree.

I am building oce/patches commit 98a788062 on an up-to-date Debian 12 (Bookworm/stable) system.

CMake output:

-- The C compiler identification is GNU 12.2.0
-- The CXX compiler identification is GNU 12.2.0
-- Detecting C compiler ABI info
-- Detecting C compiler ABI info - done
-- Check for working C compiler: /usr/bin/cc - skipped
-- Detecting C compile features
-- Detecting C compile features - done
-- Detecting CXX compiler ABI info
-- Detecting CXX compiler ABI info - done
-- Check for working CXX compiler: /usr/bin/c++ - skipped
-- Detecting CXX compile features
-- Detecting CXX compile features - done
-- Info. Detecting doxygen
-- Could NOT find Doxygen (missing: DOXYGEN_EXECUTABLE) (Required is at least version "1.8.4")
-- Info: TCL is used by OCCT
-- Found Tclsh: /bin/tclsh8.6 (found version "8.6") 
-- Info: TK is used by OCCT
-- Info: Freetype is used by OCCT
-- Found Freetype: /usr/lib/x86_64-linux-gnu/libfreetype.so (found version "2.12.1") 
-- Info: TKIVtk and TKIVtkDraw toolkits excluded due to VTK usage is disabled
-- Info: The directories of 3rdparty headers: 
	/usr/include/tcl8.6
	/usr/include/freetype2
-- Info: The directories of 3rdparty libraries: 
	/usr/lib/x86_64-linux-gnu
-- 
Info: (21:03:19) Start collecting all OCCT header files into /home/brian/git/oce/bbuild/inc ...
-- Info: (21:03:19) Compare FILES with files in package directories...
-- Info: (21:03:22) Create header-links in inc folder...
-- Info: (21:03:23) Checking headers in inc folder...
-- Info: (21:03:24) End the collecting
CMake Error at CMakeLists.txt:917 (file):
  file failed to open for writing (Permission denied):

    /usr/local/bin/custom.sh


-- Info: (21:03:24) OCCT toolkits processed
-- Info: (21:03:24) OCCT configuration files prepared
-- Configuring incomplete, errors occurred!
See also "/home/brian/git/oce/bbuild/CMakeFiles/CMakeOutput.log".