Patch min gcc5 hdf5default (#444)

* minimum gcc version is 5.X and hdf5 included in cmake as default

* CMake correction

Author: hrani

CMakeLists.txt

@@ -105,6 +105,25 @@ if(WITH_BOOST OR WITH_BOOST_ODE)
     set(WITH_GSL OFF)
 endif()
 
+find_package(HDF5 COMPONENTS CXX HL)
+
+if (NOT HDF5_FOUND)
+        message("==================================================================\n"
+            " HDF5 not found. Disabling NSDF support.\n\n"
+            " If you need NSDF support, please install hdf5-dev or hdf5-devel\n"
+            " package or equivalent.\n\n"
+            "     $ sudo apt-get install libhdf5-dev \n"
+            "     $ sudo yum install libhdf5-devel \n"
+            "     $ brew install hdf5 \n\n"
+            " Otherwise, continue with 'make' and 'make install' \n"
+            " If you install hdf5 to non-standard path, export environment \n"
+            " variable HDF5_ROOT to the location. Rerun cmake \n"
+            "================================================================ \n"
+	)
+elseif(HDF5_FOUND)
+	set(WITH_NSDF ON)
+endif()
+
 ################################### TARGETS ####################################
 
 link_directories(${CMAKE_BINARY_DIR})

CheckCXXCompiler.cmake

@@ -20,8 +20,8 @@ add_definitions(-Wall
     )
 
 if("${CMAKE_CXX_COMPILER_ID}" STREQUAL "GNU")
-    if(CMAKE_CXX_COMPILER_VERSION VERSION_LESS "4.9")
-        message(FATAL_ERROR "Insufficient gcc version. Minimum requried 4.9")
+    if(CMAKE_CXX_COMPILER_VERSION VERSION_LESS "5.1")
+        message(FATAL_ERROR "Insufficient gcc version. Minimum requried 5.1")
     endif()
     add_definitions( -Wno-unused-local-typedefs )
     add_definitions( -fmax-errors=5 )