From 896dee305dc3ddee6d5d6fb505269f892451b440 Mon Sep 17 00:00:00 2001
From: Joris Vaillant <joris.vaillant@inria.fr>
Date: Mon, 30 Sep 2024 16:20:43 +0200
Subject: [PATCH 1/3] core: Allow cxx11 compatibility

core: Fix enable_if use
---
 include/eigenpy/deprecation-policy.hpp |  2 +-
 include/eigenpy/numpy.hpp              | 11 ++++++-----
 2 files changed, 7 insertions(+), 6 deletions(-)

diff --git a/include/eigenpy/deprecation-policy.hpp b/include/eigenpy/deprecation-policy.hpp
index e8660523..42de0213 100644
--- a/include/eigenpy/deprecation-policy.hpp
+++ b/include/eigenpy/deprecation-policy.hpp
@@ -13,7 +13,7 @@ enum class DeprecationType { DEPRECATION, FUTURE };
 
 namespace detail {
 
-constexpr PyObject *deprecationTypeToPyObj(DeprecationType dep) {
+PyObject *deprecationTypeToPyObj(DeprecationType dep) {
   switch (dep) {
     case DeprecationType::DEPRECATION:
       return PyExc_DeprecationWarning;
diff --git a/include/eigenpy/numpy.hpp b/include/eigenpy/numpy.hpp
index f74349dd..bf738b32 100644
--- a/include/eigenpy/numpy.hpp
+++ b/include/eigenpy/numpy.hpp
@@ -150,15 +150,16 @@ struct NumpyEquivalentType<unsigned long> {
 
 template <typename Scalar>
 struct NumpyEquivalentType<
-    Scalar, std::enable_if_t<!std::is_same<int64_t, long long>::value &&
-                             std::is_same<Scalar, long long>::value> > {
+    Scalar,
+    typename std::enable_if<!std::is_same<int64_t, long long>::value &&
+                            std::is_same<Scalar, long long>::value>::type> {
   enum { type_code = NPY_LONGLONG };
 };
 template <typename Scalar>
 struct NumpyEquivalentType<
-    Scalar,
-    std::enable_if_t<!std::is_same<uint64_t, unsigned long long>::value &&
-                     std::is_same<Scalar, unsigned long long>::value> > {
+    Scalar, typename std::enable_if<
+                !std::is_same<uint64_t, unsigned long long>::value &&
+                std::is_same<Scalar, unsigned long long>::value>::type> {
   enum { type_code = NPY_ULONGLONG };
 };
 

From 6bf9767b845cd266428b85eb1ae22e11eed79cab Mon Sep 17 00:00:00 2001
From: Joris Vaillant <joris.vaillant@inria.fr>
Date: Mon, 30 Sep 2024 16:43:27 +0200
Subject: [PATCH 2/3] ci: Force build with C++11

---
 .github/workflows/macos-linux-conda.yml | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/.github/workflows/macos-linux-conda.yml b/.github/workflows/macos-linux-conda.yml
index e4821726..79063d11 100644
--- a/.github/workflows/macos-linux-conda.yml
+++ b/.github/workflows/macos-linux-conda.yml
@@ -101,7 +101,8 @@ jobs:
           -DPYTHON_EXECUTABLE=$(which python3) \
           -DGENERATE_PYTHON_STUBS=ON \
           -DCMAKE_BUILD_TYPE=${{ matrix.build_type }} \
-          -DCMAKE_CXX_FLAGS=${{ matrix.cxx_options }}
+          -DCMAKE_CXX_FLAGS=${{ matrix.cxx_options }} \
+          -DCMAKE_CXX_STANDARD=11
         cmake --build . -j3
         ctest --output-on-failure
         cmake --install .

From 2046b4ceef172dfee731ede377966111c148796d Mon Sep 17 00:00:00 2001
From: Joris Vaillant <joris.vaillant@inria.fr>
Date: Mon, 30 Sep 2024 16:43:34 +0200
Subject: [PATCH 3/3] changelog: Add changelog entry

---
 CHANGELOG.md | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index 6d925540..01eda53a 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -6,6 +6,10 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/).
 
 ## [Unreleased]
 
+### Fixed
+
+- Don't use C++14 feature ([#510](https://github.com/stack-of-tasks/eigenpy/pull/510))
+
 ## [3.10.0] - 2024-09-26
 
 ### Added