cmake: GenerateHeaderFrom very slow #30881
Description
Looks like a regression from #30842. Reported in that PR: #30842 (comment):
Not sure why, but for me the command took almost an hour:
$ ps -p 816447 --format time,rss,cmd
TIME RSS CMD
00:51:12 117640 /usr/bin/cmake -DRAW_SOURCE_PATH=_/src/bench/data/block413567.raw -DHEADER_PATH=_/bld-cmake/src/bench/data/block413567.raw.h -DRAW_NAMESPACE=benchmark::data -P _/cmake/script/GenerateHeaderFromRaw.cmake
Previously it took only a few seconds.and on IRC:
1090551 pts/1 S+ 0:00 /bin/sh -c cd /home/pw/git/bitcoin/build_dev_mode/src/bench && /usr/bin/cmake -DRAW_SOURCE_PATH=/home/pw/git/bi
1090553 pts/1 R+ 2:20 /usr/bin/cmake -DRAW_SOURCE_PATH=/home/pw/git/bitcoin/src/bench/data/block413567.raw -DHEADER_PATH=/home/pw/g
anyone have a clue why building block413567.raw.h seems to take forever?