From b621502e07b15f90f0a2391bbf6963b7632a4e8a Mon Sep 17 00:00:00 2001
From: Dima Korolev <dmitry.korolev+github-2022@gmail.com>
Date: Sun, 28 Jul 2024 12:16:14 +0200
Subject: [PATCH 01/16] Use the `current-deps` Github org.

---
 cmake/CMakeLists.txt | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/cmake/CMakeLists.txt b/cmake/CMakeLists.txt
index e390faea..b92558bb 100644
--- a/cmake/CMakeLists.txt
+++ b/cmake/CMakeLists.txt
@@ -71,7 +71,7 @@ UseGitOrClone(https://github.com/c5t/current)
 
 # Set `C5T_NO_GTEST` in the `Makefile` to any non-empty value to speed up the builds that do not need `googletest`.
 if("$ENV{C5T_NO_GTEST}" STREQUAL "")
-  UseGitOrClone(https://github.com/c5t/googletest)
+  UseGitOrClone(https://github.com/current-deps/googletest)
 else()
   message(STATUS "Skipping `googletest` as `C5T_NO_GTEST` is set.")
 endif()
@@ -83,7 +83,7 @@ if(NOT "${C5T_DEPS_1}" STREQUAL "")
   string(REPLACE ":" ";" C5T_DEPS_2 "${C5T_DEPS_1}")
   string(REPLACE " " ";" C5T_DEPS_3 "${C5T_DEPS_2}")
   foreach(C5T_DEP IN LISTS C5T_DEPS_3)
-    UseGitOrClone("https://github.com/c5t/${C5T_DEP}")
+    UseGitOrClone("https://github.com/current-deps/${C5T_DEP}")
   endforeach()
 endif()
 

From aba980a5cf00f8c1f24e7712b8daf9bd2f18bac2 Mon Sep 17 00:00:00 2001
From: Dima Korolev <dmitry.korolev+github-2022@gmail.com>
Date: Tue, 30 Jul 2024 14:07:06 +0200
Subject: [PATCH 02/16] Including all symbols from user-defined libraries.

---
 cmake/CMakeLists.txt | 20 +++++++++++---------
 1 file changed, 11 insertions(+), 9 deletions(-)

diff --git a/cmake/CMakeLists.txt b/cmake/CMakeLists.txt
index b92558bb..4071d686 100644
--- a/cmake/CMakeLists.txt
+++ b/cmake/CMakeLists.txt
@@ -117,25 +117,25 @@ foreach(SHARED_LIBRARY_SOURCE_FILE ${BINARY_SOURCE_FILES})
   target_link_libraries(${SHARED_LIBRARY_TARGET_NAME} PRIVATE "${C5T_LIBRARIES}")
 endforeach()
 
-# Declare libraries as library targets. First, and add them into the `ALL_LIBRARIES` list.
-set(ALL_LIBRARIES "${C5T_LIBRARIES}")
+# Declare user-defined libraries as library targets.
+set(USR_LIBRARIES)
 file(GLOB_RECURSE LIBRARY_SOURCE_FILES "${C5T_PROJECT_ROOT_SRC}/lib_*.cc")
 foreach(LIBRARY_SOURCE_FILE ${LIBRARY_SOURCE_FILES})
   get_filename_component(LIBRARY_TARGET_NAME "${LIBRARY_SOURCE_FILE}" NAME_WE)
-  list(APPEND ALL_LIBRARIES "${LIBRARY_TARGET_NAME}")
+  list(APPEND USR_LIBRARIES "${LIBRARY_TARGET_NAME}")
 endforeach()
 
 # Then build all the libraries, such that every library is linked against every other library.
 file(GLOB_RECURSE LIBRARY_SOURCE_FILES "${C5T_PROJECT_ROOT_SRC}/lib_*.cc")
 foreach(LIBRARY_SOURCE_FILE ${LIBRARY_SOURCE_FILES})
   get_filename_component(LIBRARY_TARGET_NAME "${LIBRARY_SOURCE_FILE}" NAME_WE)
-  add_library(${LIBRARY_TARGET_NAME} "${LIBRARY_SOURCE_FILE}")
+  add_library(${LIBRARY_TARGET_NAME} STATIC "${LIBRARY_SOURCE_FILE}")
   add_dependencies(${LIBRARY_TARGET_NAME} C5T_CURRENT_BUILD_INFO_H_TARGET)
   target_compile_definitions(${LIBRARY_TARGET_NAME} PRIVATE C5T_CMAKE_PROJECT)
   target_include_directories(${LIBRARY_TARGET_NAME} PRIVATE "${CMAKE_CURRENT_BINARY_DIR}/inc")
-  set(LIBRARY_DEPS_WO_SELF "${ALL_LIBRARIES}")
-  list(REMOVE_ITEM LIBRARY_DEPS_WO_SELF ${LIBRARY_TARGET_NAME})
-  target_link_libraries(${LIBRARY_TARGET_NAME} PRIVATE "${LIBRARY_DEPS_WO_SELF}")
+  set(USR_LIBRARIES_WO_SELF "${USR_LIBRARIES}")
+  list(REMOVE_ITEM USR_LIBRARIES_WO_SELF ${LIBRARY_TARGET_NAME})
+  target_link_libraries(${LIBRARY_TARGET_NAME} PRIVATE -Wl,--whole-archive "${USR_LIBRARIES_WO_SELF}" -Wl,--no-whole-archive,--allow-multiple-definition)
 endforeach()
 
 # Declare binaries as binary targets. And link them against all the libraries.
@@ -147,7 +147,8 @@ foreach(BINARY_SOURCE_FILE ${BINARY_SOURCE_FILES})
     add_dependencies(${BINARY_TARGET_NAME} C5T_CURRENT_BUILD_INFO_H_TARGET)
     target_compile_definitions(${BINARY_TARGET_NAME} PRIVATE C5T_CMAKE_PROJECT)
     target_include_directories(${BINARY_TARGET_NAME} PRIVATE "${CMAKE_CURRENT_BINARY_DIR}/inc")
-    target_link_libraries(${BINARY_TARGET_NAME} PRIVATE "${ALL_LIBRARIES}")
+    target_link_libraries(${BINARY_TARGET_NAME} PRIVATE "${C5T_LIBRARIES}")
+    target_link_libraries(${BINARY_TARGET_NAME} PRIVATE -Wl,--whole-archive "${USR_LIBRARIES}" -Wl,--no-whole-archive,--allow-multiple-definition)
   endif()
 endforeach()
 
@@ -159,6 +160,7 @@ foreach(TEST_SOURCE_FILE ${TEST_SOURCE_FILES})
   add_executable(${TEST_TARGET_NAME} "${TEST_SOURCE_FILE}") 
   add_dependencies(${TEST_TARGET_NAME} C5T_CURRENT_BUILD_INFO_H_TARGET)
   target_include_directories(${TEST_TARGET_NAME} PRIVATE "${CMAKE_CURRENT_BINARY_DIR}/inc")
-  target_link_libraries(${TEST_TARGET_NAME} PRIVATE gtest_main "${ALL_LIBRARIES}")
+  target_link_libraries(${TEST_TARGET_NAME} PRIVATE gtest_main "${C5T_LIBRARIES}")
+  target_link_libraries(${TEST_TARGET_NAME} PRIVATE -Wl,--whole-archive "${USR_LIBRARIES}" -Wl,--no-whole-archive)
   add_test(NAME ${TEST_TARGET_NAME} COMMAND ${TEST_TARGET_NAME})
 endforeach()

From 77e74727c4c00d12b8312f0a20a8d44b5b8e0075 Mon Sep 17 00:00:00 2001
From: Dima Korolev <dmitry.korolev+github-2022@gmail.com>
Date: Tue, 30 Jul 2024 14:17:18 +0200
Subject: [PATCH 03/16] Pleasing `APPLE`.

---
 cmake/CMakeLists.txt | 18 +++++++++++++++---
 1 file changed, 15 insertions(+), 3 deletions(-)

diff --git a/cmake/CMakeLists.txt b/cmake/CMakeLists.txt
index 4071d686..ea0d4769 100644
--- a/cmake/CMakeLists.txt
+++ b/cmake/CMakeLists.txt
@@ -135,7 +135,11 @@ foreach(LIBRARY_SOURCE_FILE ${LIBRARY_SOURCE_FILES})
   target_include_directories(${LIBRARY_TARGET_NAME} PRIVATE "${CMAKE_CURRENT_BINARY_DIR}/inc")
   set(USR_LIBRARIES_WO_SELF "${USR_LIBRARIES}")
   list(REMOVE_ITEM USR_LIBRARIES_WO_SELF ${LIBRARY_TARGET_NAME})
-  target_link_libraries(${LIBRARY_TARGET_NAME} PRIVATE -Wl,--whole-archive "${USR_LIBRARIES_WO_SELF}" -Wl,--no-whole-archive,--allow-multiple-definition)
+  if(APPLE)
+    target_link_libraries(${LIBRARY_TARGET_NAME} PRIVATE "${USR_LIBRARIES_WO_SELF}" -all_load -force_load)
+  else()
+    target_link_libraries(${LIBRARY_TARGET_NAME} PRIVATE -Wl,--whole-archive "${USR_LIBRARIES_WO_SELF}" -Wl,--no-whole-archive,--allow-multiple-definition)
+  endif()
 endforeach()
 
 # Declare binaries as binary targets. And link them against all the libraries.
@@ -148,7 +152,11 @@ foreach(BINARY_SOURCE_FILE ${BINARY_SOURCE_FILES})
     target_compile_definitions(${BINARY_TARGET_NAME} PRIVATE C5T_CMAKE_PROJECT)
     target_include_directories(${BINARY_TARGET_NAME} PRIVATE "${CMAKE_CURRENT_BINARY_DIR}/inc")
     target_link_libraries(${BINARY_TARGET_NAME} PRIVATE "${C5T_LIBRARIES}")
-    target_link_libraries(${BINARY_TARGET_NAME} PRIVATE -Wl,--whole-archive "${USR_LIBRARIES}" -Wl,--no-whole-archive,--allow-multiple-definition)
+    if(APPLE)
+      target_link_libraries(${BINARY_TARGET_NAME} PRIVATE "${USR_LIBRARIES}" -all_load -force_load)
+    else()
+      target_link_libraries(${BINARY_TARGET_NAME} PRIVATE -Wl,--whole-archive "${USR_LIBRARIES}" -Wl,--no-whole-archive,--allow-multiple-definition)
+    endif()
   endif()
 endforeach()
 
@@ -161,6 +169,10 @@ foreach(TEST_SOURCE_FILE ${TEST_SOURCE_FILES})
   add_dependencies(${TEST_TARGET_NAME} C5T_CURRENT_BUILD_INFO_H_TARGET)
   target_include_directories(${TEST_TARGET_NAME} PRIVATE "${CMAKE_CURRENT_BINARY_DIR}/inc")
   target_link_libraries(${TEST_TARGET_NAME} PRIVATE gtest_main "${C5T_LIBRARIES}")
-  target_link_libraries(${TEST_TARGET_NAME} PRIVATE -Wl,--whole-archive "${USR_LIBRARIES}" -Wl,--no-whole-archive)
+  if (APPLE)
+    target_link_libraries(${TEST_TARGET_NAME} PRIVATE "${USR_LIBRARIES}" -all_load -force_load)
+  else()
+    target_link_libraries(${TEST_TARGET_NAME} PRIVATE -Wl,--whole-archive "${USR_LIBRARIES}" -Wl,--no-whole-archive)
+  endif()
   add_test(NAME ${TEST_TARGET_NAME} COMMAND ${TEST_TARGET_NAME})
 endforeach()

From 101a454a7bc427d398b349f156e267c9198dba13 Mon Sep 17 00:00:00 2001
From: Dima Korolev <dmitry.korolev+github-2022@gmail.com>
Date: Tue, 30 Jul 2024 14:22:18 +0200
Subject: [PATCH 04/16] More `APPLE` tweaks.

---
 cmake/CMakeLists.txt | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/cmake/CMakeLists.txt b/cmake/CMakeLists.txt
index ea0d4769..c08dd1ef 100644
--- a/cmake/CMakeLists.txt
+++ b/cmake/CMakeLists.txt
@@ -136,7 +136,7 @@ foreach(LIBRARY_SOURCE_FILE ${LIBRARY_SOURCE_FILES})
   set(USR_LIBRARIES_WO_SELF "${USR_LIBRARIES}")
   list(REMOVE_ITEM USR_LIBRARIES_WO_SELF ${LIBRARY_TARGET_NAME})
   if(APPLE)
-    target_link_libraries(${LIBRARY_TARGET_NAME} PRIVATE "${USR_LIBRARIES_WO_SELF}" -all_load -force_load)
+    target_link_libraries(${LIBRARY_TARGET_NAME} PRIVATE -force_load "${USR_LIBRARIES_WO_SELF}")
   else()
     target_link_libraries(${LIBRARY_TARGET_NAME} PRIVATE -Wl,--whole-archive "${USR_LIBRARIES_WO_SELF}" -Wl,--no-whole-archive,--allow-multiple-definition)
   endif()
@@ -153,7 +153,7 @@ foreach(BINARY_SOURCE_FILE ${BINARY_SOURCE_FILES})
     target_include_directories(${BINARY_TARGET_NAME} PRIVATE "${CMAKE_CURRENT_BINARY_DIR}/inc")
     target_link_libraries(${BINARY_TARGET_NAME} PRIVATE "${C5T_LIBRARIES}")
     if(APPLE)
-      target_link_libraries(${BINARY_TARGET_NAME} PRIVATE "${USR_LIBRARIES}" -all_load -force_load)
+      target_link_libraries(${BINARY_TARGET_NAME} PRIVATE -force_load "${USR_LIBRARIES}")
     else()
       target_link_libraries(${BINARY_TARGET_NAME} PRIVATE -Wl,--whole-archive "${USR_LIBRARIES}" -Wl,--no-whole-archive,--allow-multiple-definition)
     endif()
@@ -170,7 +170,7 @@ foreach(TEST_SOURCE_FILE ${TEST_SOURCE_FILES})
   target_include_directories(${TEST_TARGET_NAME} PRIVATE "${CMAKE_CURRENT_BINARY_DIR}/inc")
   target_link_libraries(${TEST_TARGET_NAME} PRIVATE gtest_main "${C5T_LIBRARIES}")
   if (APPLE)
-    target_link_libraries(${TEST_TARGET_NAME} PRIVATE "${USR_LIBRARIES}" -all_load -force_load)
+    target_link_libraries(${TEST_TARGET_NAME} PRIVATE -force_load "${USR_LIBRARIES}")
   else()
     target_link_libraries(${TEST_TARGET_NAME} PRIVATE -Wl,--whole-archive "${USR_LIBRARIES}" -Wl,--no-whole-archive)
   endif()

From cba45d4172f1c020e63fa43e267a9b5e1d024133 Mon Sep 17 00:00:00 2001
From: Dima Korolev <dmitry.korolev+github-2022@gmail.com>
Date: Tue, 30 Jul 2024 14:26:01 +0200
Subject: [PATCH 05/16] Added `-Wl` to `-force_load`.

---
 cmake/CMakeLists.txt | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/cmake/CMakeLists.txt b/cmake/CMakeLists.txt
index c08dd1ef..92014f8f 100644
--- a/cmake/CMakeLists.txt
+++ b/cmake/CMakeLists.txt
@@ -136,7 +136,7 @@ foreach(LIBRARY_SOURCE_FILE ${LIBRARY_SOURCE_FILES})
   set(USR_LIBRARIES_WO_SELF "${USR_LIBRARIES}")
   list(REMOVE_ITEM USR_LIBRARIES_WO_SELF ${LIBRARY_TARGET_NAME})
   if(APPLE)
-    target_link_libraries(${LIBRARY_TARGET_NAME} PRIVATE -force_load "${USR_LIBRARIES_WO_SELF}")
+    target_link_libraries(${LIBRARY_TARGET_NAME} PRIVATE -Wl,-force_load "${USR_LIBRARIES_WO_SELF}")
   else()
     target_link_libraries(${LIBRARY_TARGET_NAME} PRIVATE -Wl,--whole-archive "${USR_LIBRARIES_WO_SELF}" -Wl,--no-whole-archive,--allow-multiple-definition)
   endif()
@@ -153,7 +153,7 @@ foreach(BINARY_SOURCE_FILE ${BINARY_SOURCE_FILES})
     target_include_directories(${BINARY_TARGET_NAME} PRIVATE "${CMAKE_CURRENT_BINARY_DIR}/inc")
     target_link_libraries(${BINARY_TARGET_NAME} PRIVATE "${C5T_LIBRARIES}")
     if(APPLE)
-      target_link_libraries(${BINARY_TARGET_NAME} PRIVATE -force_load "${USR_LIBRARIES}")
+      target_link_libraries(${BINARY_TARGET_NAME} PRIVATE -Wl,-force_load "${USR_LIBRARIES}")
     else()
       target_link_libraries(${BINARY_TARGET_NAME} PRIVATE -Wl,--whole-archive "${USR_LIBRARIES}" -Wl,--no-whole-archive,--allow-multiple-definition)
     endif()
@@ -170,7 +170,7 @@ foreach(TEST_SOURCE_FILE ${TEST_SOURCE_FILES})
   target_include_directories(${TEST_TARGET_NAME} PRIVATE "${CMAKE_CURRENT_BINARY_DIR}/inc")
   target_link_libraries(${TEST_TARGET_NAME} PRIVATE gtest_main "${C5T_LIBRARIES}")
   if (APPLE)
-    target_link_libraries(${TEST_TARGET_NAME} PRIVATE -force_load "${USR_LIBRARIES}")
+    target_link_libraries(${TEST_TARGET_NAME} PRIVATE -Wl,-force_load "${USR_LIBRARIES}")
   else()
     target_link_libraries(${TEST_TARGET_NAME} PRIVATE -Wl,--whole-archive "${USR_LIBRARIES}" -Wl,--no-whole-archive)
   endif()

From 8d4df6645bcdc48ef153eeefcaa165a86a748203 Mon Sep 17 00:00:00 2001
From: Dima Korolev <dmitry.korolev+github-2022@gmail.com>
Date: Tue, 30 Jul 2024 15:21:57 +0200
Subject: [PATCH 06/16] Specifically added the `current` dir as the dir for
 `#include`-s.

---
 cmake/CMakeLists.txt | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/cmake/CMakeLists.txt b/cmake/CMakeLists.txt
index 92014f8f..75f80728 100644
--- a/cmake/CMakeLists.txt
+++ b/cmake/CMakeLists.txt
@@ -113,7 +113,7 @@ foreach(SHARED_LIBRARY_SOURCE_FILE ${BINARY_SOURCE_FILES})
   # TODO(dkorolev): Might be worth it to `grep` this `dlib_*.cc` source file for required library dependencies.
   target_compile_definitions(${SHARED_LIBRARY_TARGET_NAME} PRIVATE C5T_CMAKE_PROJECT)
   target_compile_definitions(${SHARED_LIBRARY_TARGET_NAME} PRIVATE C5T_DLIB)
-  target_include_directories(${SHARED_LIBRARY_TARGET_NAME} PRIVATE "${CMAKE_CURRENT_BINARY_DIR}/inc")
+  target_include_directories(${SHARED_LIBRARY_TARGET_NAME} PRIVATE "${CMAKE_CURRENT_BINARY_DIR}/inc" ${C5T_DEP_DIR_current})
   target_link_libraries(${SHARED_LIBRARY_TARGET_NAME} PRIVATE "${C5T_LIBRARIES}")
 endforeach()
 
@@ -132,7 +132,7 @@ foreach(LIBRARY_SOURCE_FILE ${LIBRARY_SOURCE_FILES})
   add_library(${LIBRARY_TARGET_NAME} STATIC "${LIBRARY_SOURCE_FILE}")
   add_dependencies(${LIBRARY_TARGET_NAME} C5T_CURRENT_BUILD_INFO_H_TARGET)
   target_compile_definitions(${LIBRARY_TARGET_NAME} PRIVATE C5T_CMAKE_PROJECT)
-  target_include_directories(${LIBRARY_TARGET_NAME} PRIVATE "${CMAKE_CURRENT_BINARY_DIR}/inc")
+  target_include_directories(${LIBRARY_TARGET_NAME} PRIVATE "${CMAKE_CURRENT_BINARY_DIR}/inc" ${C5T_DEP_DIR_current})
   set(USR_LIBRARIES_WO_SELF "${USR_LIBRARIES}")
   list(REMOVE_ITEM USR_LIBRARIES_WO_SELF ${LIBRARY_TARGET_NAME})
   if(APPLE)

From 6ecf7a10fe717bb0c8f72440dc6eb833f53b3d0f Mon Sep 17 00:00:00 2001
From: Dima Korolev <dmitry.korolev+github-2022@gmail.com>
Date: Tue, 30 Jul 2024 23:34:50 +0200
Subject: [PATCH 07/16] Running the pre-build script if present.

---
 cmake/CMakeLists.txt | 22 ++++++++++++++++++----
 1 file changed, 18 insertions(+), 4 deletions(-)

diff --git a/cmake/CMakeLists.txt b/cmake/CMakeLists.txt
index 75f80728..c05e2fec 100644
--- a/cmake/CMakeLists.txt
+++ b/cmake/CMakeLists.txt
@@ -90,13 +90,27 @@ endif()
 get_property(C5T_LIBRARIES GLOBAL PROPERTY C5T_LIBRARIES_PROPERTY)
 
 add_custom_target(C5T_CURRENT_BUILD_INFO_H_TARGET ALL DEPENDS "${CMAKE_CURRENT_BINARY_DIR}/inc/current_build_info.h")
+add_custom_target(C5T_CUSTOM_PER_BUILD_SCRIPT_TARGET ALL DEPENDS "${CMAKE_CURRENT_BINARY_DIR}/inc/pre_build_sh_output.h")
 
 add_custom_command(OUTPUT "${CMAKE_CURRENT_BINARY_DIR}/inc/current_build_info.h"
                    COMMAND "${C5T_DEP_DIR_current}/scripts/gen-current-build.sh"
                    ARGS "${CMAKE_CURRENT_BINARY_DIR}/inc/current_build_info.h"
                    DEPENDS inc/current_build_info.h.force_rebuild)
 
+file(MAKE_DIRECTORY "${CMAKE_CURRENT_BINARY_DIR}/inc")
+if(EXISTS "${CMAKE_SOURCE_DIR}/src/pre_build.sh")
+  add_custom_command(OUTPUT "${CMAKE_CURRENT_BINARY_DIR}/inc/pre_build_sh_output.h"
+                     COMMAND "${CMAKE_SOURCE_DIR}/src/pre_build.sh"
+                     ARGS "${CMAKE_CURRENT_BINARY_DIR}/inc/pre_build_sh_output.h"
+                     WORKING_DIRECTORY "${CMAKE_SOURCE_DIR}"
+                     DEPENDS inc/pre_build_sh_output.h.force_rebuild)
+else()
+  file(TOUCH "${CMAKE_CURRENT_BINARY_DIR}/inc/pre_build_sh_output.h")
+  file(APPEND "${CMAKE_CURRENT_BINARY_DIR}/inc/pre_build_sh_output.h" "#pragma once\n// No `src/pre_build.sh` found.\n")
+endif()
+
 add_custom_command(OUTPUT inc/current_build_info.h.force_rebuild COMMAND cmake -E echo >/dev/null)
+add_custom_command(OUTPUT inc/pre_build_sh_output.h.force_rebuild COMMAND cmake -E echo >/dev/null)
 
 if("${C5T_PROJECT_ROOT}" STREQUAL "")
   set(C5T_PROJECT_ROOT_SRC "src")
@@ -109,7 +123,7 @@ file(GLOB_RECURSE BINARY_SOURCE_FILES "${C5T_PROJECT_ROOT_SRC}/dlib_*.cc")
 foreach(SHARED_LIBRARY_SOURCE_FILE ${BINARY_SOURCE_FILES})
   get_filename_component(SHARED_LIBRARY_TARGET_NAME "${SHARED_LIBRARY_SOURCE_FILE}" NAME_WE)
   add_library(${SHARED_LIBRARY_TARGET_NAME} SHARED "${SHARED_LIBRARY_SOURCE_FILE}") 
-  add_dependencies(${SHARED_LIBRARY_TARGET_NAME} C5T_CURRENT_BUILD_INFO_H_TARGET)
+  add_dependencies(${SHARED_LIBRARY_TARGET_NAME} C5T_CURRENT_BUILD_INFO_H_TARGET C5T_CUSTOM_PER_BUILD_SCRIPT_TARGET)
   # TODO(dkorolev): Might be worth it to `grep` this `dlib_*.cc` source file for required library dependencies.
   target_compile_definitions(${SHARED_LIBRARY_TARGET_NAME} PRIVATE C5T_CMAKE_PROJECT)
   target_compile_definitions(${SHARED_LIBRARY_TARGET_NAME} PRIVATE C5T_DLIB)
@@ -130,7 +144,7 @@ file(GLOB_RECURSE LIBRARY_SOURCE_FILES "${C5T_PROJECT_ROOT_SRC}/lib_*.cc")
 foreach(LIBRARY_SOURCE_FILE ${LIBRARY_SOURCE_FILES})
   get_filename_component(LIBRARY_TARGET_NAME "${LIBRARY_SOURCE_FILE}" NAME_WE)
   add_library(${LIBRARY_TARGET_NAME} STATIC "${LIBRARY_SOURCE_FILE}")
-  add_dependencies(${LIBRARY_TARGET_NAME} C5T_CURRENT_BUILD_INFO_H_TARGET)
+  add_dependencies(${LIBRARY_TARGET_NAME} C5T_CURRENT_BUILD_INFO_H_TARGET C5T_CUSTOM_PER_BUILD_SCRIPT_TARGET)
   target_compile_definitions(${LIBRARY_TARGET_NAME} PRIVATE C5T_CMAKE_PROJECT)
   target_include_directories(${LIBRARY_TARGET_NAME} PRIVATE "${CMAKE_CURRENT_BINARY_DIR}/inc" ${C5T_DEP_DIR_current})
   set(USR_LIBRARIES_WO_SELF "${USR_LIBRARIES}")
@@ -148,7 +162,7 @@ foreach(BINARY_SOURCE_FILE ${BINARY_SOURCE_FILES})
   get_filename_component(BINARY_TARGET_NAME "${BINARY_SOURCE_FILE}" NAME_WE)
   if(NOT (BINARY_TARGET_NAME MATCHES "^lib_.*$" OR BINARY_TARGET_NAME MATCHES "^test_.*$" OR BINARY_TARGET_NAME MATCHES "^dlib_.*$"))
     add_executable(${BINARY_TARGET_NAME} "${BINARY_SOURCE_FILE}") 
-    add_dependencies(${BINARY_TARGET_NAME} C5T_CURRENT_BUILD_INFO_H_TARGET)
+    add_dependencies(${BINARY_TARGET_NAME} C5T_CURRENT_BUILD_INFO_H_TARGET C5T_CUSTOM_PER_BUILD_SCRIPT_TARGET)
     target_compile_definitions(${BINARY_TARGET_NAME} PRIVATE C5T_CMAKE_PROJECT)
     target_include_directories(${BINARY_TARGET_NAME} PRIVATE "${CMAKE_CURRENT_BINARY_DIR}/inc")
     target_link_libraries(${BINARY_TARGET_NAME} PRIVATE "${C5T_LIBRARIES}")
@@ -166,7 +180,7 @@ file(GLOB_RECURSE TEST_SOURCE_FILES "${C5T_PROJECT_ROOT_SRC}/test_*.cc")
 foreach(TEST_SOURCE_FILE ${TEST_SOURCE_FILES})
   get_filename_component(TEST_TARGET_NAME "${TEST_SOURCE_FILE}" NAME_WE)
   add_executable(${TEST_TARGET_NAME} "${TEST_SOURCE_FILE}") 
-  add_dependencies(${TEST_TARGET_NAME} C5T_CURRENT_BUILD_INFO_H_TARGET)
+  add_dependencies(${TEST_TARGET_NAME} C5T_CURRENT_BUILD_INFO_H_TARGET C5T_CUSTOM_PER_BUILD_SCRIPT_TARGET)
   target_include_directories(${TEST_TARGET_NAME} PRIVATE "${CMAKE_CURRENT_BINARY_DIR}/inc")
   target_link_libraries(${TEST_TARGET_NAME} PRIVATE gtest_main "${C5T_LIBRARIES}")
   if (APPLE)

From 0a3315a304db00959f4595e416857807480117e0 Mon Sep 17 00:00:00 2001
From: Dima Korolev <dmitry.korolev+github-2022@gmail.com>
Date: Tue, 30 Jul 2024 23:37:50 +0200
Subject: [PATCH 08/16] Back to a "simple" `CMakeLists.txt`.

---
 cmake/CMakeLists.txt | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/cmake/CMakeLists.txt b/cmake/CMakeLists.txt
index c05e2fec..dd898d30 100644
--- a/cmake/CMakeLists.txt
+++ b/cmake/CMakeLists.txt
@@ -152,7 +152,7 @@ foreach(LIBRARY_SOURCE_FILE ${LIBRARY_SOURCE_FILES})
   if(APPLE)
     target_link_libraries(${LIBRARY_TARGET_NAME} PRIVATE -Wl,-force_load "${USR_LIBRARIES_WO_SELF}")
   else()
-    target_link_libraries(${LIBRARY_TARGET_NAME} PRIVATE -Wl,--whole-archive "${USR_LIBRARIES_WO_SELF}" -Wl,--no-whole-archive,--allow-multiple-definition)
+    target_link_libraries(${LIBRARY_TARGET_NAME} PRIVATE "${USR_LIBRARIES_WO_SELF}")
   endif()
 endforeach()
 
@@ -169,7 +169,7 @@ foreach(BINARY_SOURCE_FILE ${BINARY_SOURCE_FILES})
     if(APPLE)
       target_link_libraries(${BINARY_TARGET_NAME} PRIVATE -Wl,-force_load "${USR_LIBRARIES}")
     else()
-      target_link_libraries(${BINARY_TARGET_NAME} PRIVATE -Wl,--whole-archive "${USR_LIBRARIES}" -Wl,--no-whole-archive,--allow-multiple-definition)
+      target_link_libraries(${BINARY_TARGET_NAME} PRIVATE "${USR_LIBRARIES}")
     endif()
   endif()
 endforeach()
@@ -186,7 +186,7 @@ foreach(TEST_SOURCE_FILE ${TEST_SOURCE_FILES})
   if (APPLE)
     target_link_libraries(${TEST_TARGET_NAME} PRIVATE -Wl,-force_load "${USR_LIBRARIES}")
   else()
-    target_link_libraries(${TEST_TARGET_NAME} PRIVATE -Wl,--whole-archive "${USR_LIBRARIES}" -Wl,--no-whole-archive)
+    target_link_libraries(${TEST_TARGET_NAME} PRIVATE "${USR_LIBRARIES}")
   endif()
   add_test(NAME ${TEST_TARGET_NAME} COMMAND ${TEST_TARGET_NAME})
 endforeach()

From 2c67c93a846875a8c55870e65cc07212cbeb693a Mon Sep 17 00:00:00 2001
From: Dima Korolev <dmitry.korolev+github-2022@gmail.com>
Date: Wed, 31 Jul 2024 00:05:33 +0200
Subject: [PATCH 09/16] `s/\./.inl/g`.

---
 cmake/CMakeLists.txt | 14 +++++++-------
 1 file changed, 7 insertions(+), 7 deletions(-)

diff --git a/cmake/CMakeLists.txt b/cmake/CMakeLists.txt
index dd898d30..7b771a4c 100644
--- a/cmake/CMakeLists.txt
+++ b/cmake/CMakeLists.txt
@@ -90,7 +90,7 @@ endif()
 get_property(C5T_LIBRARIES GLOBAL PROPERTY C5T_LIBRARIES_PROPERTY)
 
 add_custom_target(C5T_CURRENT_BUILD_INFO_H_TARGET ALL DEPENDS "${CMAKE_CURRENT_BINARY_DIR}/inc/current_build_info.h")
-add_custom_target(C5T_CUSTOM_PER_BUILD_SCRIPT_TARGET ALL DEPENDS "${CMAKE_CURRENT_BINARY_DIR}/inc/pre_build_sh_output.h")
+add_custom_target(C5T_CUSTOM_PER_BUILD_SCRIPT_TARGET ALL DEPENDS "${CMAKE_CURRENT_BINARY_DIR}/inc/pre_build_sh_output.inl")
 
 add_custom_command(OUTPUT "${CMAKE_CURRENT_BINARY_DIR}/inc/current_build_info.h"
                    COMMAND "${C5T_DEP_DIR_current}/scripts/gen-current-build.sh"
@@ -99,18 +99,18 @@ add_custom_command(OUTPUT "${CMAKE_CURRENT_BINARY_DIR}/inc/current_build_info.h"
 
 file(MAKE_DIRECTORY "${CMAKE_CURRENT_BINARY_DIR}/inc")
 if(EXISTS "${CMAKE_SOURCE_DIR}/src/pre_build.sh")
-  add_custom_command(OUTPUT "${CMAKE_CURRENT_BINARY_DIR}/inc/pre_build_sh_output.h"
+  add_custom_command(OUTPUT "${CMAKE_CURRENT_BINARY_DIR}/inc/pre_build_sh_output.inl"
                      COMMAND "${CMAKE_SOURCE_DIR}/src/pre_build.sh"
-                     ARGS "${CMAKE_CURRENT_BINARY_DIR}/inc/pre_build_sh_output.h"
+                     ARGS "${CMAKE_CURRENT_BINARY_DIR}/inc/pre_build_sh_output.inl"
                      WORKING_DIRECTORY "${CMAKE_SOURCE_DIR}"
-                     DEPENDS inc/pre_build_sh_output.h.force_rebuild)
+                     DEPENDS inc/pre_build_sh_output.inl.force_rebuild)
 else()
-  file(TOUCH "${CMAKE_CURRENT_BINARY_DIR}/inc/pre_build_sh_output.h")
-  file(APPEND "${CMAKE_CURRENT_BINARY_DIR}/inc/pre_build_sh_output.h" "#pragma once\n// No `src/pre_build.sh` found.\n")
+  file(TOUCH "${CMAKE_CURRENT_BINARY_DIR}/inc/pre_build_sh_output.inl")
+  file(APPEND "${CMAKE_CURRENT_BINARY_DIR}/inc/pre_build_sh_output.inl" "#pragma once\n// No `src/pre_build.sh` found.\n")
 endif()
 
 add_custom_command(OUTPUT inc/current_build_info.h.force_rebuild COMMAND cmake -E echo >/dev/null)
-add_custom_command(OUTPUT inc/pre_build_sh_output.h.force_rebuild COMMAND cmake -E echo >/dev/null)
+add_custom_command(OUTPUT inc/pre_build_sh_output.inl.force_rebuild COMMAND cmake -E echo >/dev/null)
 
 if("${C5T_PROJECT_ROOT}" STREQUAL "")
   set(C5T_PROJECT_ROOT_SRC "src")

From 5e1dd04afe1859f5a4e89862ceb039820960c27a Mon Sep 17 00:00:00 2001
From: Dima Korolev <dmitry.korolev+github-2022@gmail.com>
Date: Wed, 31 Jul 2024 12:19:00 +0200
Subject: [PATCH 10/16] Reverted most changes, just keeping the `.inl`
 pre-build script now.

---
 cmake/CMakeLists.txt | 18 +++---------------
 1 file changed, 3 insertions(+), 15 deletions(-)

diff --git a/cmake/CMakeLists.txt b/cmake/CMakeLists.txt
index 7b771a4c..89e01d2d 100644
--- a/cmake/CMakeLists.txt
+++ b/cmake/CMakeLists.txt
@@ -149,11 +149,7 @@ foreach(LIBRARY_SOURCE_FILE ${LIBRARY_SOURCE_FILES})
   target_include_directories(${LIBRARY_TARGET_NAME} PRIVATE "${CMAKE_CURRENT_BINARY_DIR}/inc" ${C5T_DEP_DIR_current})
   set(USR_LIBRARIES_WO_SELF "${USR_LIBRARIES}")
   list(REMOVE_ITEM USR_LIBRARIES_WO_SELF ${LIBRARY_TARGET_NAME})
-  if(APPLE)
-    target_link_libraries(${LIBRARY_TARGET_NAME} PRIVATE -Wl,-force_load "${USR_LIBRARIES_WO_SELF}")
-  else()
-    target_link_libraries(${LIBRARY_TARGET_NAME} PRIVATE "${USR_LIBRARIES_WO_SELF}")
-  endif()
+  target_link_libraries(${LIBRARY_TARGET_NAME} PRIVATE "${USR_LIBRARIES_WO_SELF}")
 endforeach()
 
 # Declare binaries as binary targets. And link them against all the libraries.
@@ -166,11 +162,7 @@ foreach(BINARY_SOURCE_FILE ${BINARY_SOURCE_FILES})
     target_compile_definitions(${BINARY_TARGET_NAME} PRIVATE C5T_CMAKE_PROJECT)
     target_include_directories(${BINARY_TARGET_NAME} PRIVATE "${CMAKE_CURRENT_BINARY_DIR}/inc")
     target_link_libraries(${BINARY_TARGET_NAME} PRIVATE "${C5T_LIBRARIES}")
-    if(APPLE)
-      target_link_libraries(${BINARY_TARGET_NAME} PRIVATE -Wl,-force_load "${USR_LIBRARIES}")
-    else()
-      target_link_libraries(${BINARY_TARGET_NAME} PRIVATE "${USR_LIBRARIES}")
-    endif()
+    target_link_libraries(${BINARY_TARGET_NAME} PRIVATE "${USR_LIBRARIES}")
   endif()
 endforeach()
 
@@ -183,10 +175,6 @@ foreach(TEST_SOURCE_FILE ${TEST_SOURCE_FILES})
   add_dependencies(${TEST_TARGET_NAME} C5T_CURRENT_BUILD_INFO_H_TARGET C5T_CUSTOM_PER_BUILD_SCRIPT_TARGET)
   target_include_directories(${TEST_TARGET_NAME} PRIVATE "${CMAKE_CURRENT_BINARY_DIR}/inc")
   target_link_libraries(${TEST_TARGET_NAME} PRIVATE gtest_main "${C5T_LIBRARIES}")
-  if (APPLE)
-    target_link_libraries(${TEST_TARGET_NAME} PRIVATE -Wl,-force_load "${USR_LIBRARIES}")
-  else()
-    target_link_libraries(${TEST_TARGET_NAME} PRIVATE "${USR_LIBRARIES}")
-  endif()
+  target_link_libraries(${TEST_TARGET_NAME} PRIVATE "${USR_LIBRARIES}")
   add_test(NAME ${TEST_TARGET_NAME} COMMAND ${TEST_TARGET_NAME})
 endforeach()

From b37d9c3da7b3075bcb42a7b84b4d1274a047fc91 Mon Sep 17 00:00:00 2001
From: Dima Korolev <dmitry.korolev+github-2022@gmail.com>
Date: Wed, 31 Jul 2024 12:23:55 +0200
Subject: [PATCH 11/16] Fixed `gen-current-build.sh` to always output one line
 (ugly).

---
 scripts/gen-current-build.sh | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/scripts/gen-current-build.sh b/scripts/gen-current-build.sh
index 484cc05b..cc5bc672 100755
--- a/scripts/gen-current-build.sh
+++ b/scripts/gen-current-build.sh
@@ -15,9 +15,9 @@ if [[ $? -ne 0 ]]; then
 fi
 COMPILER_INFO=${COMPILER_INFO//$'\n'/\\n}  # JSON-friendly newlines.
 
-GIT_COMMIT="$(git rev-parse HEAD 2>/dev/null || echo '<not under git>')"
-GIT_BRANCH="$(git rev-parse --abbrev-ref HEAD 2>/dev/null || echo '<not under git>')"
-GIT_STATUS="$(git status 2>/dev/null || echo '<not under git>')"
+GIT_COMMIT="$($(git rev-parse HEAD 2>/dev/null || echo '<not under git>') | tail -n 1)"
+GIT_BRANCH="$($(git rev-parse --abbrev-ref HEAD 2>/dev/null || echo '<not under git>') | tail -n 1)"
+GIT_STATUS="$($(git status 2>/dev/null || echo '<not under git>') | tail -n 1)"
 
 # NOTE(dkorolev): Removing the commands that may potentially run for a long time.
 #GIT_DIFF_NAMES_MULTILINE="$(git diff --name-only 2>/dev/null || echo '<not under git>')"

From 69b9a5a4981712a7f3b8e5e5cebc0def20cc81b7 Mon Sep 17 00:00:00 2001
From: Dima Korolev <dmitry.korolev+github-2022@gmail.com>
Date: Wed, 31 Jul 2024 12:28:12 +0200
Subject: [PATCH 12/16] Running `make test` is `make debug_test` by default.

---
 cmake/Makefile | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/cmake/Makefile b/cmake/Makefile
index b30d6220..effad900 100644
--- a/cmake/Makefile
+++ b/cmake/Makefile
@@ -38,7 +38,7 @@ release_dir: ${RELEASE_BUILD_DIR} .gitignore
 ${RELEASE_BUILD_DIR}: CMakeLists.txt src
 	@C5T_DEPS="${C5T_DEPS}" C5T_NO_GTEST="${C5T_NO_GTEST}" cmake -DCMAKE_BUILD_TYPE=Release -B "${RELEASE_BUILD_DIR}" .
 
-test: release
+release_test: release
 	@(cd "${RELEASE_BUILD_DIR}"; make test)
 
 debug: debug_dir CMakeLists.txt
@@ -53,7 +53,7 @@ ${DEBUG_BUILD_DIR}: CMakeLists.txt src
 debug_test: debug
 	@(cd "${DEBUG_BUILD_DIR}"; make test)
 
-test: release_test
+test: debug_test
 
 fmt:
 	${CLANG_FORMAT} -i src/*.cc src/*.h

From a30cc1529af46343276329369d6a10838162c356 Mon Sep 17 00:00:00 2001
From: Dima Korolev <dmitry.korolev+github-2022@gmail.com>
Date: Wed, 31 Jul 2024 12:36:38 +0200
Subject: [PATCH 13/16] Oops, fix.

---
 scripts/gen-current-build.sh | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/scripts/gen-current-build.sh b/scripts/gen-current-build.sh
index cc5bc672..5ba2e4c3 100755
--- a/scripts/gen-current-build.sh
+++ b/scripts/gen-current-build.sh
@@ -15,9 +15,9 @@ if [[ $? -ne 0 ]]; then
 fi
 COMPILER_INFO=${COMPILER_INFO//$'\n'/\\n}  # JSON-friendly newlines.
 
-GIT_COMMIT="$($(git rev-parse HEAD 2>/dev/null || echo '<not under git>') | tail -n 1)"
-GIT_BRANCH="$($(git rev-parse --abbrev-ref HEAD 2>/dev/null || echo '<not under git>') | tail -n 1)"
-GIT_STATUS="$($(git status 2>/dev/null || echo '<not under git>') | tail -n 1)"
+GIT_COMMIT="$( (git rev-parse HEAD 2>/dev/null || echo '<not under git>') | tail -n 1)"
+GIT_BRANCH="$( (git rev-parse --abbrev-ref HEAD 2>/dev/null || echo '<not under git>') | tail -n 1)"
+GIT_STATUS="$( (git status 2>/dev/null || echo '<not under git>') | tail -n 1)"
 
 # NOTE(dkorolev): Removing the commands that may potentially run for a long time.
 #GIT_DIFF_NAMES_MULTILINE="$(git diff --name-only 2>/dev/null || echo '<not under git>')"

From 0eda091a58d29b08d0758908f58a6a85eaf01663 Mon Sep 17 00:00:00 2001
From: Dima Korolev <dmitry.korolev+github-2022@gmail.com>
Date: Wed, 31 Jul 2024 12:41:26 +0200
Subject: [PATCH 14/16] fixes (will create a new, cleaner, PR).

---
 cmake/run-cmake-test.sh | 7 +++----
 1 file changed, 3 insertions(+), 4 deletions(-)

diff --git a/cmake/run-cmake-test.sh b/cmake/run-cmake-test.sh
index 238138c5..e6db5716 100755
--- a/cmake/run-cmake-test.sh
+++ b/cmake/run-cmake-test.sh
@@ -173,7 +173,7 @@ touch CMakeLists.txt
 echo
 
 echo "::group::release_test"
-make test
+make release_test
 echo "::endgroup::"
 
 echo "::group::debug_test"
@@ -185,14 +185,14 @@ echo
 touch src/test_gtest.cc
 T0_GTEST=$(date +%s)
 echo "::group::one line change google gtest release"
-make test
+make release_test
 echo "::endgroup::"
 T1_GTEST=$(date +%s)
 
 touch src/test_current_gtest.cc
 T0_CURRENT_GTEST=$(date +%s)
 echo "::group::one line change current gtest release"
-make test
+make release_test
 echo "::endgroup::"
 T1_CURRENT_GTEST=$(date +%s)
 
@@ -269,7 +269,6 @@ touch CMakeLists.txt
 echo "::group::build .current/libdlib_mul.{so|dylib} and .current/call_dynamic_mul"
 make
 echo "::endgroup::"
-
 echo "::group::build .current_debug/libdlib_mul.{so|dylib} and .current_debug/call_dynamic_mul"
 make debug
 echo "::endgroup::"

From 522910240cc7cc43f050b92bf3d474131f0647ce Mon Sep 17 00:00:00 2001
From: Dima Korolev <dmitry.korolev+github-2022@gmail.com>
Date: Wed, 31 Jul 2024 12:46:16 +0200
Subject: [PATCH 15/16] Minor, for tab completion.

---
 cmake/Makefile | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/cmake/Makefile b/cmake/Makefile
index effad900..6af22f57 100644
--- a/cmake/Makefile
+++ b/cmake/Makefile
@@ -7,7 +7,7 @@
 #
 # Besides, this `Makefiles` makes `:mak` in Vim work like a charm!
 
-.PHONY: release debug release_dir debug_dir release_test debug_test test fmt clean
+.PHONY: release debug _release_dir _debug_dir release_test debug_test test fmt clean
 
 # When this `Makefile` is used to run a `cmake`-based Current build, user-defined dependencies go here.
 # No quotes needed. Space- or colon- or semicolon-separated all work fine.
@@ -29,10 +29,10 @@ endif
 
 CLANG_FORMAT=$(shell echo "$${CLANG_FORMAT:-clang-format}")
 
-release: release_dir CMakeLists.txt
+release: _release_dir CMakeLists.txt
 	@MAKEFLAGS=--no-print-directory cmake --build "${RELEASE_BUILD_DIR}" -j ${CORES}
 
-release_dir: ${RELEASE_BUILD_DIR} .gitignore
+_release_dir: ${RELEASE_BUILD_DIR} .gitignore
 	@grep "^${RELEASE_BUILD_DIR}/$$" .gitignore >/dev/null || echo "${RELEASE_BUILD_DIR}/" >>.gitignore
 
 ${RELEASE_BUILD_DIR}: CMakeLists.txt src
@@ -41,10 +41,10 @@ ${RELEASE_BUILD_DIR}: CMakeLists.txt src
 release_test: release
 	@(cd "${RELEASE_BUILD_DIR}"; make test)
 
-debug: debug_dir CMakeLists.txt
+debug: _debug_dir CMakeLists.txt
 	@MAKEFLAGS=--no-print-directory cmake --build "${DEBUG_BUILD_DIR}" -j ${CORES}
 
-debug_dir: ${DEBUG_BUILD_DIR} .gitignore
+_debug_dir: ${DEBUG_BUILD_DIR} .gitignore
 	@grep "^${DEBUG_BUILD_DIR}/$$" .gitignore >/dev/null || echo "${DEBUG_BUILD_DIR}/" >>.gitignore
 
 ${DEBUG_BUILD_DIR}: CMakeLists.txt src

From e0740d4924fbc23e1099cb1394b962e34e030f8f Mon Sep 17 00:00:00 2001
From: Dima Korolev <dmitry.korolev+github-2022@gmail.com>
Date: Wed, 31 Jul 2024 13:19:17 +0200
Subject: [PATCH 16/16] More interactive debugging.

---
 CMakeLists.txt       | 10 +++++-----
 cmake/CMakeLists.txt | 12 +++++++-----
 2 files changed, 12 insertions(+), 10 deletions(-)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index eddda01b..5bb596ab 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1,8 +1,8 @@
 cmake_minimum_required(VERSION 3.14.1)
-
 project(C5T LANGUAGES C CXX)
 
-message(STATUS "Add `C5T` into `target_link_libraries()` of your `CMakeLists.txt` to use `current` headers.")
-
-add_library(C5T INTERFACE)
-target_include_directories(C5T INTERFACE "${CMAKE_CURRENT_SOURCE_DIR}")
+if (NOT TARGET C5T)
+  message(STATUS "Add `C5T` into `target_link_libraries()` of your `CMakeLists.txt` to use `current` headers.")
+  add_library(C5T INTERFACE)
+  target_include_directories(C5T INTERFACE "${CMAKE_CURRENT_SOURCE_DIR}")
+endif()
diff --git a/cmake/CMakeLists.txt b/cmake/CMakeLists.txt
index 89e01d2d..5be5d346 100644
--- a/cmake/CMakeLists.txt
+++ b/cmake/CMakeLists.txt
@@ -67,13 +67,15 @@ function(UseGitOrCloneBranch remote branch)
   UseGitOrCloneImpl("${remote}" TRUE "${branch}")
 endfunction()
 
-UseGitOrClone(https://github.com/c5t/current)
+UseGitOrCloneBranch(https://github.com/dkorolev/current use_current_deps_github_org)
 
 # Set `C5T_NO_GTEST` in the `Makefile` to any non-empty value to speed up the builds that do not need `googletest`.
-if("$ENV{C5T_NO_GTEST}" STREQUAL "")
-  UseGitOrClone(https://github.com/current-deps/googletest)
-else()
-  message(STATUS "Skipping `googletest` as `C5T_NO_GTEST` is set.")
+if(NOT TARGET gtest)
+  if("$ENV{C5T_NO_GTEST}" STREQUAL "")
+    UseGitOrClone(https://github.com/current-deps/googletest)
+  else()
+    message(STATUS "Skipping `googletest` as `C5T_NO_GTEST` is set.")
+  endif()
 endif()
 
 set_property(GLOBAL PROPERTY C5T_PATH ${C5T_DEP_DIR_current})