Move codec implementations to cpp and make codec dependencies private

CMakeLists.txt

@@ -14,6 +14,21 @@ option(PISA_ENABLE_CLANG_TIDY "Enable static analysis with clang-tidy" OFF)
 option(PISA_CLANG_TIDY_EXECUTABLE "clang-tidy executable path" "clang-tidy")
 option(PISA_USE_PIC "Enable Position-Independent code globally" ON)
 option(PISA_CI_BUILD "Remove debug information from Debug build" ON)
+option(PISA_ENABLE_IPO "Enable Interprocedural Optimization, aka Link Time Optimization (LTO)" OFF)
+
+if(PISA_ENABLE_IPO)
+    include(CheckIPOSupported)
+    check_ipo_supported(
+        RESULT
+        result
+        OUTPUT
+        output)
+    if(result)
+        set(CMAKE_INTERPROCEDURAL_OPTIMIZATION TRUE)
+    else()
+        message(SEND_ERROR "IPO is not supported: ${output}")
+    endif()
+endif()
 
 if(PISA_USE_PIC)
     set(CMAKE_POSITION_INDEPENDENT_CODE ON)
@@ -111,19 +126,18 @@ target_link_libraries(pisa
         fmt::fmt
         range-v3
         taily
-    # These should be made private in the future:
-        FastPFor
-        streamvbyte
-        MaskedVByte
-        simdcomp
-        QMX
     PRIVATE
         gumbo::gumbo
         warcpp
         wapopp
         trecpp
         Porter2
         KrovetzStemmer
+        QMX
+        streamvbyte
+        MaskedVByte
+        simdcomp
+        FastPFor
 )
 target_include_directories(pisa PUBLIC external)
 

benchmarks/perftest_interpolative.cpp

@@ -1,5 +1,6 @@
 #include <algorithm>
 #include <iostream>
+#include <numeric>
 
 #include "spdlog/spdlog.h"