Update required Boost version to 1.66

B2 doesn't build on some newer compilers anymore so we can't properly
test it.
As 1.66 is "old enough" by now just use that.

.github/workflows/ci_tests.yml

@@ -53,7 +53,7 @@ jobs:
       DEP_DIR: ${{github.workspace}}/dependencies
       # VS 2022 only supported by Boost.Build 1.78+ with changes to build files (e.g. in Boost.Thread) required that are introduced in Boost 1.66
       # Boost.Iostreams doesn't support VS 2022 until 1.69
-      BOOST_VERSION: ${{ startsWith(matrix.generator, 'Visual Studio') && '1.69.0' || '1.56.0' }}
+      BOOST_VERSION: ${{ startsWith(matrix.generator, 'Visual Studio') && '1.69.0' || '1.66.0' }}
     steps:
     - uses: actions/checkout@v4
     - name: Sanity check version
@@ -83,11 +83,11 @@ jobs:
       if: matrix.standalone == 'Boost' && steps.cache-boost.outputs.cache-hit != 'true'
       working-directory: __buildBoost
       run: |
-        git submodule update --init --jobs 3 tools/boostdep libs/filesystem tools/inspect libs/wave # Last 2 are required for pre-1.64
+        git submodule update --init --jobs 3 tools/boostdep libs/filesystem
         if [[ $BOOST_VERSION < '1.73.0' ]]; then
           (cd tools/boostdep && git fetch origin && git checkout boost-1.73.0 && git checkout boost-1.63.0 -- depinst/exceptions.txt)
         fi
-        python tools/boostdep/depinst/depinst.py --include tools --exclude test --git_args '--jobs 3 --depth 1' wave # Should be filesystem, but works because that is a dependency of wave
+        python tools/boostdep/depinst/depinst.py --include tools --exclude test --git_args '--jobs 3 --depth 1' filesystem
         if [[ "${{matrix.generator}}" =~ "Visual Studio" ]]; then
           toolset=msvc-14.3
           # Boost.Build doesn't support MSVC 2022 (14.3) until 1.78

.github/workflows/release.yml

@@ -16,7 +16,7 @@ jobs:
     runs-on: ubuntu-latest
     env:
       DEP_DIR: ${{github.workspace}}/dependencies
-      BOOST_VERSION: 1.56.0
+      BOOST_VERSION: 1.66.0
     steps:
       - uses: actions/checkout@v4
       - name: Extract tag name

CMakeLists.txt

@@ -91,7 +91,7 @@ else()
     if(WIN32 AND NOT DEFINED Boost_USE_STATIC_LIBS)
       set(Boost_USE_STATIC_LIBS ON)
     endif()
-    find_package(Boost 1.56 REQUIRED)
+    find_package(Boost 1.66 REQUIRED)
   endif()
   target_link_libraries(boost_nowide PUBLIC Boost::boost)
 endif()

Config.cmake.in

@@ -8,7 +8,7 @@ foreach(dep IN ITEMS boost_config)
   find_dependency(${dep})
 endforeach()
 else()
-find_dependency(Boost 1.56)
+find_dependency(Boost 1.66)
 endif()
 
 include("${CMAKE_CURRENT_LIST_DIR}/@PROJECT_NAME@Targets.cmake")

README.md

@@ -36,7 +36,7 @@ This is different to the version available prior to the inclusion in Boost.
 
 ### Requirements (Boost version)
 
-* Boost (>= 1.56)
+* Boost (>= 1.66)
 * CMake (when not using as part of Boost) or B2 (otherwise)
 
 ### Requirements (Standalone version)

doc/changelog.dox

@@ -1,5 +1,5 @@
 //
-// Copyright (c) 2019-2024 Alexander Grund
+// Copyright (c) 2019-2025 Alexander Grund
 //
 // Distributed under the Boost Software License, Version 1.0.
 // https://www.boost.org/LICENSE_1_0.txt
@@ -8,6 +8,9 @@
 
 \section changelog Changelog
 
+\subsection changelog_11_4_1 Nowide 11.4.1 (Boost 1.89)
+- Require at least Boost 1.66
+
 \subsection changelog_11_3_1 Nowide 11.3.1 (Boost 1.88)
 - Fix redefinition of `_CRT_SECURE_NO_WARNINGS`
 - Make `getenv` thread-safe

test/CMakeLists.txt

@@ -14,7 +14,7 @@ if(NOT TARGET tests)
 endif()
   
 if(NOT BOOST_SUPERPROJECT_SOURCE_DIR)
-  find_package(Boost 1.56 REQUIRED COMPONENTS filesystem system)
+  find_package(Boost 1.66 REQUIRED COMPONENTS filesystem system)
 endif()
 
 # In some environments this test (part) may fail, so allow to disable it