Move C++98 requirement to CI

Author: palemieux

.github/workflows/main.yaml

@@ -23,6 +23,6 @@ jobs:
     - name: Test Java
       run: mvn test
     - name: Configure CMake
-      run: cmake -B ${{github.workspace}}/build
+      run: cmake -DCXX_STANDARD=98 -B ${{github.workspace}}/build
     - name: Test regxmllibc
       run: ctest

CMakeLists.txt

@@ -11,8 +11,6 @@ include_directories( ${XercesC_INCLUDE_DIR}
 file(GLOB_RECURSE SRC_FILES src/main/cpp/*.cpp src/main/cpp/*.h )
 add_library(${PROJECT_NAME} ${SRC_FILES})
 install(TARGETS ${PROJECT_NAME} LIBRARY DESTINATION lib ARCHIVE DESTINATION lib)
-set_property(TARGET ${PROJECT_NAME} PROPERTY CXX_STANDARD 98)
-
 
 target_link_libraries ( ${PROJECT_NAME} ${XercesC_LIBRARY} )