[DAPHNE-daphne-eu#830] Fix compilation error in json dependency

The use of EOF in our json dependency makes compilation fail with Clang

build.sh

@@ -766,13 +766,14 @@ if [ $WITH_DEPS -gt 0 ]; then
     #------------------------------------------------------------------------------
     nlohmannjsonDirName=nlohmannjson
     nlohmannjsonSingleHeaderName=json.hpp
-    dep_nlohmannjson=("nlohmannjson_v${nlohmannjsonVersion}" "v1")
+    dep_nlohmannjson=("nlohmannjson_v${nlohmannjsonVersion}" "v2")
 
     if ! is_dependency_installed "${dep_nlohmannjson[@]}"; then
         daphne_msg "Get nlohmannjson version ${nlohmannjsonVersion}"
         mkdir -p "${installPrefix}/include/${nlohmannjsonDirName}"
         wget "https://github.com/nlohmann/json/releases/download/v$nlohmannjsonVersion/$nlohmannjsonSingleHeaderName" \
             -qO "${installPrefix}/include/${nlohmannjsonDirName}/${nlohmannjsonSingleHeaderName}"
+        patch -Np0 -i "${patchDir}/0007-nlohmannjson-replace-EOF.patch" -d "${installPrefix}/include/${nlohmannjsonDirName}"
         dependency_install_success "${dep_nlohmannjson[@]}"
     else
         daphne_msg "No need to download nlohmannjson again."

thirdparty/patches/0007-nlohmannjson-replace-EOF.patch

@@ -0,0 +1,20 @@
+--- json.hpp.orig	2024-09-24 17:26:47.850173669 +0200
++++ json.hpp	2024-09-24 17:27:40.874776913 +0200
+@@ -3624,7 +3624,7 @@
+
+     static constexpr int_type eof() noexcept
+     {
+-        return static_cast<int_type>(EOF);
++        return static_cast<int_type>(std::char_traits<char>::eof());
+     }
+ };
+
+@@ -3648,7 +3648,7 @@
+
+     static constexpr int_type eof() noexcept
+     {
+-        return static_cast<int_type>(EOF);
++        return static_cast<int_type>(std::char_traits<char>::eof());
+     }
+ };
+