Replace parallel STL with PPQSort.

PPQSort is supposedly quite fast: https://github.com/GabTux/PPQSort

More importantly, it does not depend on TBB fuckery, so there's no longer
a need to link with an external library that people may or may not have.

The NO_PARALLEL_STL option is out, as it was provided solely to deal with
TBB being not available. Sequential sorting is still used on emscripten.

cmake/server.cmake

@@ -29,11 +29,7 @@ list(TRANSFORM TRACY_SERVER_SOURCES PREPEND "${TRACY_SERVER_DIR}/")
 
 add_library(TracyServer STATIC EXCLUDE_FROM_ALL ${TRACY_COMMON_SOURCES} ${TRACY_SERVER_SOURCES})
 target_include_directories(TracyServer PUBLIC ${TRACY_COMMON_DIR} ${TRACY_SERVER_DIR})
-target_link_libraries(TracyServer PUBLIC TracyCapstone TracyZstd)
+target_link_libraries(TracyServer PUBLIC TracyCapstone TracyZstd PPQSort::PPQSort)
 if(NO_STATISTICS)
     target_compile_definitions(TracyServer PUBLIC TRACY_NO_STATISTICS)
 endif()
-
-if(NOT NO_PARALLEL_STL AND UNIX AND NOT APPLE AND NOT EMSCRIPTEN)
-    target_link_libraries(TracyServer PRIVATE TracyTbb)
-endif()

cmake/vendor.cmake

@@ -214,32 +214,11 @@ if (NOT NO_FILESELECTOR AND NOT EMSCRIPTEN)
     endif()
 endif()
 
-# TBB
-if (NO_PARALLEL_STL)
-    set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -DNO_PARALLEL_SORT")
-    set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -DNO_PARALLEL_SORT")
-else()
-    if (UNIX AND NOT APPLE AND NOT EMSCRIPTEN)
-        # Tracy does not use TBB directly, but the implementation of parallel algorithms
-        # in some versions of libstdc++ depends on TBB. When it does, you must
-        # explicitly link against -ltbb.
-        #
-        # Some distributions have pgk-config files for TBB, others don't.
+# PPQSort
 
-        pkg_check_modules(TBB tbb)
-        if (TBB_FOUND)
-            add_library(TracyTbb INTERFACE)
-            target_include_directories(TracyTbb INTERFACE ${TBB_INCLUDE_DIRS})
-            target_link_libraries(TracyTbb INTERFACE ${TBB_LINK_LIBRARIES})
-        else()
-            CPMAddPackage(
-                NAME tbb
-                GITHUB_REPOSITORY oneapi-src/oneTBB
-                GIT_TAG v2021.12.0-rc2
-                OPTIONS "TBB_TEST OFF"
-            )
-            add_library(TracyTbb INTERFACE)
-            target_link_libraries(TracyTbb INTERFACE tbb)
-        endif()
-    endif()
-endif()
+CPMAddPackage(
+    NAME PPQSort
+    GITHUB_REPOSITORY GabTux/PPQSort
+    VERSION 1.0.3
+    EXCLUDE_FROM_ALL TRUE
+)