diff --git a/CMakeLists.txt b/CMakeLists.txt
index 075929b86ba0..bd39700f4e3a 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -91,11 +91,23 @@ add_compile_flags("C;CXX" ${PREFIX_MAP_FLAGS})
 set(DEPENDENCY_CFLAGS "${DEPENDENCY_CFLAGS} ${PREFIX_MAP_FLAGS}")
 set(DEPENDENCY_CXXFLAGS "${DEPENDENCY_CXXFLAGS} ${PREFIX_MAP_FLAGS}")
 
+if(APPLE AND NOT CMAKE_OSX_SYSROOT)
+    execute_process(
+        COMMAND xcrun --show-sdk-path
+        OUTPUT_VARIABLE OSX_SDK_PATH
+        OUTPUT_STRIP_TRAILING_WHITESPACE
+    )
+    set(CMAKE_OSX_SYSROOT "${OSX_SDK_PATH}" CACHE PATH "macOS SDK path" FORCE)
+    message(STATUS "Using macOS SDK: ${CMAKE_OSX_SYSROOT}")
+endif()
+
 # We need this for bundled SASL & LDAP libs (in fact, for any autotools-based project)
 if(APPLE)
-    set(DEPENDENCY_CFLAGS "${DEPENDENCY_CFLAGS} ${CMAKE_C_SYSROOT_FLAG} ${CMAKE_OSX_SYSROOT}")
-    set(DEPENDENCY_CPPFLAGS "${DEPENDENCY_CPPFLAGS} ${CMAKE_C_SYSROOT_FLAG} ${CMAKE_OSX_SYSROOT}")
-    set(DEPENDENCY_CXXFLAGS "${DEPENDENCY_CXXFLAGS} ${CMAKE_C_SYSROOT_FLAG} ${CMAKE_OSX_SYSROOT}")
+    if(CMAKE_OSX_SYSROOT)
+        set(DEPENDENCY_CFLAGS "${DEPENDENCY_CFLAGS} ${CMAKE_C_SYSROOT_FLAG} ${CMAKE_OSX_SYSROOT}")
+        set(DEPENDENCY_CPPFLAGS "${DEPENDENCY_CPPFLAGS} ${CMAKE_C_SYSROOT_FLAG} ${CMAKE_OSX_SYSROOT}")
+        set(DEPENDENCY_CXXFLAGS "${DEPENDENCY_CXXFLAGS} ${CMAKE_C_SYSROOT_FLAG} ${CMAKE_OSX_SYSROOT}")
+    endif()
 endif()
 
 # Gcc 15 sets --std=gnu23 by default, breaking many dependencies.
diff --git a/cmake/BuildLibXXhash.cmake b/cmake/BuildLibXXhash.cmake
index 9a96bf9e1387..c9f30ff463e7 100644
--- a/cmake/BuildLibXXhash.cmake
+++ b/cmake/BuildLibXXhash.cmake
@@ -12,7 +12,7 @@ macro(libxxhash_build)
     # Remaining properties are the same as for zstd
     # (see cmake/BuildZSTD.cmake).
     set_source_files_properties(${xxhash_src}
-            PROPERTIES COMPILE_FLAGS "${DEPENDENCY_CFLAGS} -Ofast -DXXH_NAMESPACE=tnt_")
+            PROPERTIES COMPILE_FLAGS "${DEPENDENCY_CFLAGS} -O3 -DXXH_NAMESPACE=tnt_")
 
     add_library(xxhash STATIC ${xxhash_src})
     set(XXHASH_LIBRARIES xxhash)
diff --git a/cmake/compiler.cmake b/cmake/compiler.cmake
index 14652a95a420..ff592bfbe5bd 100644
--- a/cmake/compiler.cmake
+++ b/cmake/compiler.cmake
@@ -158,7 +158,7 @@ option(ENABLE_BUNDLED_LIBUNWIND "Bundled libunwind will be built"
 # In Clang there is no '-static-libstdc++' flag and its use will raise
 # the following error:
 #     clang: error: argument unused during compilation: '-static-libstdc++'
-if(BUILD_STATIC AND NOT CMAKE_CXX_COMPILER_ID STREQUAL "Clang")
+if(BUILD_STATIC AND NOT (CMAKE_CXX_COMPILER_ID MATCHES "Clang"))
     # Static linking for c++ routines
     add_compile_flags("C;CXX" "-static-libstdc++")
 endif()
diff --git a/src/lib/CMakeLists.txt b/src/lib/CMakeLists.txt
index b973dc501f2b..bea1d96aeaf8 100644
--- a/src/lib/CMakeLists.txt
+++ b/src/lib/CMakeLists.txt
@@ -2,6 +2,25 @@ add_subdirectory(bit)
 add_subdirectory(bitset)
 set(SMALL_EMBEDDED ON)
 add_subdirectory(small)
+
+# Remove only src/lib/small (the root with the VERSION file),
+# but leave src/lib/small/include and src/lib/small/include/small
+foreach(tgt IN ITEMS small small_shared small.perftest)
+    if(TARGET ${tgt})
+        get_target_property(dirs ${tgt} INCLUDE_DIRECTORIES)
+        if(dirs)
+            set(new_dirs "")
+            foreach(d ${dirs})
+                # убираем только если путь совпадает ровно с корнем сабмодуля
+                if(NOT d STREQUAL "${CMAKE_CURRENT_SOURCE_DIR}/small")
+                    list(APPEND new_dirs "${d}")
+                endif()
+            endforeach()
+            set_target_properties(${tgt} PROPERTIES INCLUDE_DIRECTORIES "${new_dirs}")
+        endif()
+    endif()
+endforeach()
+
 add_subdirectory(salad)
 add_subdirectory(csv)
 add_subdirectory(json)
diff --git a/static-build/cmake/AddTarantoolProject.cmake b/static-build/cmake/AddTarantoolProject.cmake
index 09b9717cb2f7..8dc40ae10b47 100644
--- a/static-build/cmake/AddTarantoolProject.cmake
+++ b/static-build/cmake/AddTarantoolProject.cmake
@@ -1,5 +1,15 @@
 include(ExternalProject)
 
+# On macOS, we explicitly throw the SDK into a child project
+if (APPLE)
+    execute_process(
+        COMMAND xcrun --show-sdk-path
+        OUTPUT_VARIABLE OSX_SYSROOT
+        OUTPUT_STRIP_TRAILING_WHITESPACE
+    )
+    list(APPEND TARANTOOL_ARGS -DCMAKE_OSX_SYSROOT=${OSX_SYSROOT})
+endif()
+
 ExternalProject_Add(tarantool
     DEPENDS ${TARANTOOL_DEPENDS}
     SOURCE_DIR ${CMAKE_CURRENT_SOURCE_DIR}/..