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Fix Issue #187 #189

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Merged
thelfer merged 1 commit into from
Nov 14, 2025
Merged

Fix Issue #187 #189

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5 changes: 4 additions & 1 deletion cmake/modules/clang.cmake
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Original file line number Diff line number Diff line change
Expand Up @@ -83,7 +83,10 @@ if(enable-parallel-stl-algorithms)
# This is a poor test to check of libstc++ is used
if(UNIX AND NOT APPLE)
if(NOT enable-libcxx)
find_package(TBB REQUIRED)
find_package(TBB)
if(NOT TBB_FOUND)
message(FATAL_ERROR "Intel Threading Building Blocks library (TBB) is required by libstdc++ to support parallel STL algorithms. You may want to disable support for those parallel algorithms by passing -Denable-parallel-stl-algorithms=OFF to cmake")
endif(NOT TBB_FOUND)
list(APPEND MGIS_REQUIRED_ADDITIONAL_PACKAGES "TBB")
list(APPEND MGIS_ADDITIONAL_LIBRARIES "TBB::tbb")
endif(NOT enable-libcxx)
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5 changes: 4 additions & 1 deletion cmake/modules/gcc.cmake
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Original file line number Diff line number Diff line change
Expand Up @@ -111,7 +111,10 @@ endif(enable-sanitize-options)
set(COMPILER_C_WARNINGS "-Wall -W -pedantic")

if(enable-parallel-stl-algorithms)
find_package(TBB REQUIRED)
find_package(TBB)
if(NOT TBB_FOUND)
message(FATAL_ERROR "Intel Threading Building Blocks library (TBB) is required by libstdc++ to support parallel STL algorithms. You may want to disable support for those parallel algorithms by passing -Denable-parallel-stl-algorithms=OFF to cmake")
endif(NOT TBB_FOUND)
list(APPEND MGIS_REQUIRED_ADDITIONAL_PACKAGES "TBB")
list(APPEND MGIS_ADDITIONAL_LIBRARIES "TBB::tbb")
endif(enable-parallel-stl-algorithms)
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