From b28dfcd1150b3a13b2a2cbf467f02c379fb42f03 Mon Sep 17 00:00:00 2001
From: "Dr. Colin Hirsch" <github@colin-hirsch.net>
Date: Fri, 7 Jul 2023 22:21:02 +0200
Subject: [PATCH 1/4] Merge pull request #350 from baconpaul/cmake-347

Add a CMake option to select no std::filesystem
---
 CMakeLists.txt | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index c2ee336f3..c06f9a681 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -50,6 +50,7 @@ target_include_directories(pegtl INTERFACE
 target_compile_features(pegtl INTERFACE cxx_std_17)
 
 option(PEGTL_USE_BOOST_FILESYSTEM "Override the auto-detection of std::filesystem and use Boost.Filesystem" OFF)
+option(PEGTL_USE_FILESYSTEM "Use available implementation of std::filesystem (std::, std::experiemntal, or Boost)" ON)
 
 # Try compiling a test program with std::filesystem or one of its alternatives
 function(check_filesystem_impl FILESYSTEM_HEADER FILESYSTEM_NAMESPACE OPTIONAL_LIBS OUT_RESULT)
@@ -82,7 +83,10 @@ function(check_filesystem_impl FILESYSTEM_HEADER FILESYSTEM_NAMESPACE OPTIONAL_L
   set(${OUT_RESULT} ${TEST_RESULT} PARENT_SCOPE)
 endfunction()
 
-if(PEGTL_USE_BOOST_FILESYSTEM)
+if (NOT PEGTL_USE_FILESYSTEM)
+  target_compile_definitions(${PROJECT_NAME} INTERFACE TAO_PEGTL_NO_FILESYSTEM)
+  message(STATUS "Skipping std::filesystem (or variant) in PEGTL; File operations will not work or compile.")
+elseif (PEGTL_USE_BOOST_FILESYSTEM)
   # Force the use of Boost.Filesystem: #include <boost/filesystem.hpp> // boost::filesystem
   find_package(Boost REQUIRED COMPONENTS filesystem)
   target_link_libraries(${PROJECT_NAME} INTERFACE Boost::filesystem)

From 4cc5e83436f74d2c240568ae99197144ab0e867f Mon Sep 17 00:00:00 2001
From: Uilian Ries <uilianries@gmail.com>
Date: Mon, 10 Jul 2023 11:16:03 +0200
Subject: [PATCH 2/4] validate no filesystem support

Signed-off-by: Uilian Ries <uilianries@gmail.com>
---
 .github/workflows/no-filesystem.yml | 38 +++++++++++++++++++++++++++++
 1 file changed, 38 insertions(+)
 create mode 100644 .github/workflows/no-filesystem.yml

diff --git a/.github/workflows/no-filesystem.yml b/.github/workflows/no-filesystem.yml
new file mode 100644
index 000000000..ff0823de7
--- /dev/null
+++ b/.github/workflows/no-filesystem.yml
@@ -0,0 +1,38 @@
+name: No-Filesystem
+
+on:
+  push:
+    paths-ignore:
+      - 'README.md'
+      - 'doc/**'
+  pull_request:
+    paths-ignore:
+      - 'README.md'
+      - 'doc/**'
+
+jobs:
+  no-exceptions:
+    strategy:
+      fail-fast: false
+      matrix:
+        compiler: [g++, clang++]
+        build_type: [Release]
+
+    runs-on: ubuntu-latest
+
+    env:
+      CXX: ${{ matrix.compiler }}
+
+    steps:
+    - uses: actions/checkout@v2
+
+    - run: cmake -E make_directory build
+
+    - working-directory: build/
+      run: cmake $GITHUB_WORKSPACE -DCMAKE_BUILD_TYPE=${{ matrix.build_type }} -DPEGTL_USE_FILESYSTEM=OFF -DPEGTL_USE_BOOST_FILESYSTEM=OFF
+
+    - working-directory: build/
+      run: cmake --build .
+
+    - working-directory: build/
+      run: ctest --output-on-failure

From 91ca84cabeccc6c0d28663cdcacb43f2e64124d5 Mon Sep 17 00:00:00 2001
From: Uilian Ries <uilianries@gmail.com>
Date: Mon, 10 Jul 2023 11:28:56 +0200
Subject: [PATCH 3/4] use specific versions of Ubuntu

Signed-off-by: Uilian Ries <uilianries@gmail.com>
---
 .github/workflows/linux.yml         | 6 +++---
 .github/workflows/no-filesystem.yml | 2 +-
 2 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/.github/workflows/linux.yml b/.github/workflows/linux.yml
index e9ace6480..a1c8be675 100644
--- a/.github/workflows/linux.yml
+++ b/.github/workflows/linux.yml
@@ -23,7 +23,7 @@ jobs:
           - clang++-12
         build_type: [Debug, Release]
 
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-20.04
 
     env:
       CXX: ${{ matrix.compiler }}
@@ -84,7 +84,7 @@ jobs:
           - clang++-9
         build_type: [Debug, Release]
 
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-20.04
 
     env:
       CXX: ${{ matrix.compiler }}
@@ -137,7 +137,7 @@ jobs:
         flags: ["-fno-rtti", "-fms-extensions"]
         build_type: [Debug, Release]
 
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-22.04
 
     env:
       CXX: clang++
diff --git a/.github/workflows/no-filesystem.yml b/.github/workflows/no-filesystem.yml
index ff0823de7..4fe821845 100644
--- a/.github/workflows/no-filesystem.yml
+++ b/.github/workflows/no-filesystem.yml
@@ -15,7 +15,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        compiler: [g++, clang++]
+        compiler: [g++]
         build_type: [Release]
 
     runs-on: ubuntu-latest

From 86a677aeab71647b63e3fbb93b8953cad2fa3c38 Mon Sep 17 00:00:00 2001
From: Uilian Ries <uilianries@gmail.com>
Date: Mon, 10 Jul 2023 11:42:01 +0200
Subject: [PATCH 4/4] Use MacOS 13 and 14 to build tests

Signed-off-by: Uilian Ries <uilianries@gmail.com>
---
 .github/workflows/macos.yml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/.github/workflows/macos.yml b/.github/workflows/macos.yml
index 646fc5a0c..ecdb3164f 100644
--- a/.github/workflows/macos.yml
+++ b/.github/workflows/macos.yml
@@ -15,7 +15,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        xcode: ['11', '12', '13']
+        xcode: ['13', '14']
         build_type: [Debug, Release]
 
     runs-on: macos-latest