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Don't use relpaths in lit cfg if build/source dir are on different drives. 

See discussion on https://reviews.llvm.org/D77184.
This commit is contained in:
Andrew Ng 2020-04-03 15:41:14 -04:00 committed by Nico Weber
parent 210f40fe9a
commit dbb0d8ecb3
1 changed files with 8 additions and 2 deletions
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10
llvm/cmake/modules/AddLLVM.cmake
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@ -1494,8 +1494,14 @@ function(configure_lit_site_cfg site_in site_out)
# outselves. cmake has no relpath function, so use Python for that.
string(REPLACE ";" "\\;" ARG_PATH_VALUES_ESCAPED "${ARG_PATH_VALUES}")
get_filename_component(OUTPUT_DIR ${site_out} DIRECTORY)
execute_process(COMMAND "${PYTHON_EXECUTABLE}" "-c"
"import os, sys; sys.stdout.write(';'.join(os.path.relpath(p, sys.argv[1]).replace(os.sep, '/') if p else '' for p in sys.argv[2].split(';')))"
execute_process(COMMAND "${PYTHON_EXECUTABLE}" "-c" "\n
import os, sys\n
drive = os.path.splitdrive(sys.argv[1])[0]\n
def relpath(p):\n
if not p: return ''\n
if os.path.splitdrive(p)[0] != drive: return p\n
return os.path.relpath(p, sys.argv[1]).replace(os.sep, '/')\n
sys.stdout.write(';'.join(relpath(p) for p in sys.argv[2].split(';')))"
${OUTPUT_DIR}
${ARG_PATH_VALUES_ESCAPED}
OUTPUT_VARIABLE ARG_PATH_VALUES_RELATIVE)