re2 is a dependency of protobuf

Author: Mizux

CMakeLists.txt

@@ -85,12 +85,12 @@ message(STATUS "Build ZLIB: ${BUILD_ZLIB}")
 option(BUILD_absl "Build the abseil-cpp dependency Library" ON)
 message(STATUS "Build abseil-cpp: ${BUILD_absl}")
 
+option(BUILD_re2 "Build the RE2 dependency Library" ON)
+message(STATUS "Build re2: ${BUILD_re2}")
+
 option(BUILD_Protobuf "Build the Protobuf dependency Library" ON)
 message(STATUS "Build protobuf: ${BUILD_Protobuf}")
 
-option(BUILD_re2 "Build the re2 dependency Library" ON)
-message(STATUS "Build re2: ${BUILD_re2}")
-
 if(BUILD_TESTING)
   option(BUILD_googletest "Build googletest" ON)
   option(BUILD_benchmark "Build benchmark" ON)

cmake/dependencies/CMakeLists.txt

@@ -58,6 +58,27 @@ if(BUILD_absl)
   message(CHECK_PASS "fetched")
 endif()
 
+# ##############################################################################
+# RE2
+# ##############################################################################
+if(BUILD_re2)
+  message(CHECK_START "Fetching re2")
+  list(APPEND CMAKE_MESSAGE_INDENT "  ")
+  FetchContent_Declare(
+    re2
+    GIT_REPOSITORY "https://github.com/google/re2.git"
+    GIT_TAG "2025-08-12"
+    GIT_SHALLOW TRUE
+    UPDATE_COMMAND git reset --hard
+    PATCH_COMMAND git apply --ignore-whitespace
+    "${CMAKE_CURRENT_LIST_DIR}/../../patches/re2-2025-08-12.patch"
+  )
+  set(RE2_BUILD_TESTING OFF)
+  FetchContent_MakeAvailable(re2)
+  list(POP_BACK CMAKE_MESSAGE_INDENT)
+  message(CHECK_PASS "fetched")
+endif()
+
 # ##############################################################################
 # Protobuf
 # ##############################################################################
@@ -84,27 +105,6 @@ if(BUILD_Protobuf)
   message(CHECK_PASS "fetched")
 endif()
 
-# ##############################################################################
-# RE2
-# ##############################################################################
-if(BUILD_re2)
-  message(CHECK_START "Fetching re2")
-  list(APPEND CMAKE_MESSAGE_INDENT "  ")
-  FetchContent_Declare(
-    re2
-    GIT_REPOSITORY "https://github.com/google/re2.git"
-    GIT_TAG "2025-08-12"
-    GIT_SHALLOW TRUE
-    UPDATE_COMMAND git reset --hard
-    PATCH_COMMAND git apply --ignore-whitespace
-    "${CMAKE_CURRENT_LIST_DIR}/../../patches/re2-2025-08-12.patch"
-  )
-  set(RE2_BUILD_TESTING OFF)
-  FetchContent_MakeAvailable(re2)
-  list(POP_BACK CMAKE_MESSAGE_INDENT)
-  message(CHECK_PASS "fetched")
-endif()
-
 ###############
 ##  TESTING  ##
 ###############