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build: gen_char_blob.lua: "bad argument to format" if path contains "%" #39274

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Problem:
Build fails if user cloned the repo to a path with "%" chars:

    src/gen/gen_char_blob.lua:51: bad argument #1 to 'format' (number expected, got string)

Solution:
- Escape "%" chars.
- Also use "%q" in case the path has spaces...
This commit is contained in:
Justin M. Keyes
2026-04-21 09:50:46 -04:00
committed by GitHub
parent ac8459a09c
commit 4af0c5d8df
1 changed files with 6 additions and 2 deletions
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8
CMakeLists.txt
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@@ -213,14 +213,18 @@ if(COMPILE_LUA AND NOT WIN32)
foreach(CURRENT_LUAC_PRG luac5.1 luac)
find_program(_CHECK_LUAC_PRG ${CURRENT_LUAC_PRG})
if(_CHECK_LUAC_PRG)
set(LUAC_PRG "${_CHECK_LUAC_PRG} -s -o - %s" CACHE STRING "Format for compiling to Lua bytecode")
# Escape "%" for string.format() (in gen_char_blob.lua). #39271
string(REPLACE "%" "%%" _LUAC_PRG_ESCAPED "${_CHECK_LUAC_PRG}")
set(LUAC_PRG "${_LUAC_PRG_ESCAPED} -s -o - %q" CACHE STRING "Format for compiling to Lua bytecode")
break()
endif()
endforeach()
elseif(LUA_PRG MATCHES "luajit")
check_lua_module(${LUA_PRG} "jit.bcsave" LUAJIT_HAS_JIT_BCSAVE)
if(LUAJIT_HAS_JIT_BCSAVE)
set(LUAC_PRG "${LUA_PRG} -b -s %s -" CACHE STRING "Format for compiling to Lua bytecode")
# Escape "%" for string.format() (in gen_char_blob.lua). #39271
string(REPLACE "%" "%%" _LUA_PRG_ESCAPED "${LUA_PRG}")
set(LUAC_PRG "${_LUA_PRG_ESCAPED} -b -s %q -" CACHE STRING "Format for compiling to Lua bytecode")
endif()
endif()
endif()