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Change: [CMake] Improve 'In-source build' error message #8955

merged 1 commit into from Apr 6, 2021


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@glx22 glx22 commented Apr 5, 2021

Motivation / Problem

Once you tried to run cmake from source dir, you will constantly get the In-source builds not allowed. Please run \"cmake ..\" from the bin directory message, even if you follow what it says.
That's because cmake created a CMakeCache.txt in source dir with "wrong" binary dir, and cmake will always use it.


Add a hint to the error message to delete "broken" CMakeCache.txt


Checklist for review

Some things are not automated, and forgotten often. This list is a reminder for the reviewers.

  • The bug fix is important enough to be backported? (label: 'backport requested')
  • This PR affects the save game format? (label 'savegame upgrade')
  • This PR affects the GS/AI API? (label 'needs review: Script API')
    • ai_changelog.hpp, gs_changelog.hpp need updating.
    • The compatibility wrappers (compat_*.nut) need updating.
  • This PR affects the NewGRF API? (label 'needs review: NewGRF')
CMakeLists.txt Outdated Show resolved Hide resolved
@glx22 glx22 changed the title Change: [CMake] Improve In-source error message Change: [CMake] Improve 'In-source build' error message Apr 5, 2021
LordAro approved these changes Apr 6, 2021
@glx22 glx22 merged commit 39b4a8e into OpenTTD:master Apr 6, 2021
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@glx22 glx22 deleted the in_source branch Apr 6, 2021
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3 participants