From c27d7d7596e32a59b78f077608321c05b49f0b82 Mon Sep 17 00:00:00 2001
From: Nigel Stewart <nigels@nigels.com>
Date: Sun, 21 Jun 2026 08:26:35 +1000
Subject: [PATCH] cmake: Also build the test programs in BUILD_TESTING=Y mode

---
 CMakeLists.txt      | 13 ++++++++++++-
 test/CMakeLists.txt | 19 +++++++++++++++++++
 2 files changed, 31 insertions(+), 1 deletion(-)
 create mode 100644 test/CMakeLists.txt

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 270b1d3a..7f221e0a 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -27,6 +27,17 @@ target_compile_features(boost_format INTERFACE cxx_std_11)
 
 if(BUILD_TESTING AND EXISTS "${CMAKE_CURRENT_SOURCE_DIR}/test/CMakeLists.txt")
 
-  add_subdirectory(test)
+  if(CMAKE_SOURCE_DIR STREQUAL PROJECT_SOURCE_DIR)
+
+    message(STATUS "Using CMake version ${CMAKE_VERSION}")
+
+    set(Boost_DEBUG ON)
+    find_package(Boost 1.85 CONFIG REQUIRED COMPONENTS assert config core optional smart_ptr throw_exception utility)
+
+  endif()
+
+  # Follow the Boost convention: don't build test targets by default,
+  # and only when explicitly requested by building target tests
+  add_subdirectory(test EXCLUDE_FROM_ALL)
 
 endif()
diff --git a/test/CMakeLists.txt b/test/CMakeLists.txt
new file mode 100644
index 00000000..469a311c
--- /dev/null
+++ b/test/CMakeLists.txt
@@ -0,0 +1,19 @@
+cmake_minimum_required(VERSION 3.8...3.20)
+
+add_executable(format_test1 format_test1.cpp)
+target_link_libraries(format_test1 Boost::format)
+
+add_executable(format_test2 format_test2.cpp)
+target_link_libraries(format_test2 Boost::format)
+
+add_executable(format_test3 format_test3.cpp)
+target_link_libraries(format_test3 Boost::format)
+
+add_executable(format_test_enum format_test_enum.cpp)
+target_link_libraries(format_test_enum Boost::format)
+
+add_executable(format_test_exceptions format_test_exceptions.cpp)
+target_link_libraries(format_test_exceptions Boost::format)
+
+add_executable(format_test_wstring format_test_wstring.cpp)
+target_link_libraries(format_test_wstring Boost::format)