Fixed the CMake environment to set a minimum compiler version, check

for it, and terminate building if it is not met.

Author: bvanessen

CMakeLists.txt

@@ -92,6 +92,26 @@ if(WITH_TBINF)
 endif()
 include(Doxygen)
 
+################################################################
+# Check Compiler versions
+################################################################
+
+execute_process(COMMAND ${CMAKE_CXX_COMPILER} -dumpversion OUTPUT_VARIABLE CXX_VERSION)
+
+if(CMAKE_CXX_COMPILER_ID MATCHES "GNU")
+   if(NOT (CXX_VERSION VERSION_GREATER 4.9 OR CXX_VERSION VERSION_EQUAL 4.9))
+     message(FATAL_ERROR "LBANN & Elemental requires G++ Version >= 4.9")
+   endif()
+elseif(CMAKE_CXX_COMPILER_ID MATCHES "Intel")
+   if(NOT (CXX_VERSION VERSION_GREATER 16.0 OR CXX_VERSION VERSION_EQUAL 16.0))
+     message(FATAL_ERROR "LBANN & Elemental requires icpc Version >= 16.0")
+   endif()
+elseif(CMAKE_CXX_COMPILER_ID MATCHES "Clang")
+   message(FATAL_ERROR "Unsupported compiler: Clang")
+else()
+   message(FATAL_ERROR "Unsupported compiler: Unknown compiler vendor")
+endif()
+
 ################################################################
 # Build LBANN
 ################################################################

scripts/build_lbann_lc.sh

@@ -200,19 +200,22 @@ EOF
     echo "${CONFIGURE_COMMAND}"
   fi
   ${CONFIGURE_COMMAND}
+  rc=$?; if [[ $rc != 0 ]]; then exit $rc; fi
 
   # Build LBANN with make
   BUILD_COMMAND="make -j${MAKE_NUM_PROCESSES} VERBOSE=${VERBOSE}"
   if [ ${VERBOSE} -ne 0 ]; then
     echo "${BUILD_COMMAND}"
   fi
   ${BUILD_COMMAND}
+  rc=$?; if [[ $rc != 0 ]]; then exit $rc; fi
 
   # Build LBANN with make
   INSTALL_COMMAND="make install -j${MAKE_NUM_PROCESSES} VERBOSE=${VERBOSE}"
   if [ ${VERBOSE} -ne 0 ]; then
     echo "${INSTALL_COMMAND}"
   fi
   ${INSTALL_COMMAND}
+  rc=$?; if [[ $rc != 0 ]]; then exit $rc; fi
 
 popd

scripts/build_lbann_osx.sh

@@ -68,11 +68,14 @@ pushd ${BUILD_DIR}
     -D VERBOSE=${VERBOSE} \
     -D MAKE_NUM_PROCESSES=${MAKE_NUM_PROCESSES} \
     ${ROOT_DIR}
+  rc=$?; if [[ $rc != 0 ]]; then exit $rc; fi
 
   # Build LBANN with make
   make -j${MAKE_NUM_PROCESSES} VERBOSE=${VERBOSE}
+  rc=$?; if [[ $rc != 0 ]]; then exit $rc; fi
 
   # Install LBANN with make
   make install -j${MAKE_NUM_PROCESSES} VERBOSE=${VERBOSE}
+  rc=$?; if [[ $rc != 0 ]]; then exit $rc; fi
 
 popd