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Build: Clarify CMAKE_OSX_ARCHITECTURES error

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It's not that the build system doesn't support multiple values in
CMAKE_OSX_ARCHITECTURES.  It's that libjpeg-turbo, because of its SIMD
extensions, *cannot* support multiple values in CMAKE_OSX_ARCHITECTURES.
This commit is contained in:
DRC
2023-02-23 09:35:12 -06:00
parent d67edaff83
commit c13fe15955
1 changed files with 1 additions and 1 deletions
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CMakeLists.txt
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@@ -98,7 +98,7 @@ string(TOLOWER ${CMAKE_SYSTEM_PROCESSOR} CMAKE_SYSTEM_PROCESSOR_LC)
set(COUNT 1)
foreach(ARCH ${CMAKE_OSX_ARCHITECTURES})
if(COUNT GREATER 1)
message(FATAL_ERROR "The libjpeg-turbo build system does not support multiple values in CMAKE_OSX_ARCHITECTURES.")
message(FATAL_ERROR "libjpeg-turbo contains assembly code, so it cannot be built with multiple values in CMAKE_OSX_ARCHITECTURES.")
endif()
math(EXPR COUNT "${COUNT}+1")
endforeach()