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diff --git a/CMakeLists.txt b/CMakeLists.txt
index 456d4f4..3c235f2 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -7,6 +7,7 @@ set (ISMRMRD_CMAKE_DIR ${PROJECT_SOURCE_DIR}/cmake CACHE PATH
# command line options
option(USE_SYSTEM_PUGIXML "Use pugixml installed on the system" OFF)
+option(USE_HDF5_DATASET_SUPPORT "Use HDF5 library for dataset support" OFF)
# and include it to the search list
list(APPEND CMAKE_MODULE_PATH ${ISMRMRD_CMAKE_DIR})
@@ -91,18 +92,23 @@ endif()
set(ISMRMRD_VERSION_STRING ${ISMRMRD_VERSION_MAJOR}.${ISMRMRD_VERSION_MINOR}.${ISMRMRD_VERSION_PATCH})
set(ISMRMRD_SOVERSION ${ISMRMRD_VERSION_MAJOR}.${ISMRMRD_VERSION_MINOR})
-# Find HDF5 for dataset support
-find_package(HDF5 1.8 COMPONENTS C)
-
-if (HDF5_FOUND)
- set (ISMRMRD_DATASET_SUPPORT true)
- set (ISMRMRD_DATASET_SOURCES libsrc/dataset.c libsrc/dataset.cpp)
- set (ISMRMRD_DATASET_INCLUDE_DIR ${HDF5_C_INCLUDE_DIR})
- set (ISMRMRD_DATASET_LIBRARIES ${HDF5_LIBRARIES})
-else (HDF5_FOUND)
+if (USE_HDF5_DATASET_SUPPORT)
+ # Find HDF5 for dataset support
+ find_package(HDF5 1.8 COMPONENTS C)
+
+ if (HDF5_FOUND)
+ set (ISMRMRD_DATASET_SUPPORT true)
+ set (ISMRMRD_DATASET_SOURCES libsrc/dataset.c libsrc/dataset.cpp)
+ set (ISMRMRD_DATASET_INCLUDE_DIR ${HDF5_C_INCLUDE_DIR})
+ set (ISMRMRD_DATASET_LIBRARIES ${HDF5_LIBRARIES})
+ elseif (USE_HDF5_DATASET_SUPPORT)
+ set (ISMRMRD_DATASET_SUPPORT false)
+ # Dataset and file support was explicitly requested, force failure rather than succeed without support.
+ message (FATAL_ERROR "HDF5 not found. Dataset and file support unavailable!")
+ endif (HDF5_FOUND)
+else (USE_HDF5_DATASET_SUPPORT)
set (ISMRMRD_DATASET_SUPPORT false)
- message (WARNING "HDF5 not found. Dataset and file support unavailable!")
-endif (HDF5_FOUND)
+endif (USE_HDF5_DATASET_SUPPORT)
# Generate the version.h header file
find_package(Git)
@@ -127,7 +133,7 @@ install(FILES ${CMAKE_BINARY_DIR}/include/ismrmrd/version.h DESTINATION include/
# --- Main Library (begin) ----
# in windows, install the HDF5 dependencies
-if (HDF5_FOUND AND WIN32 AND ISMRMRD_INSTALL_DEPENDENCIES)
+if (USE_HDF5_DATASET_SUPPORT AND WIN32 AND ISMRMRD_INSTALL_DEPENDENCIES)
if(DEFINED ENV{HDF5_ROOT})
set(HDF5_BIN_DIR $ENV{HDF5_ROOT}/bin)
else (DEFINED ENV{HDF5_ROOT})
@@ -135,7 +141,7 @@ if (HDF5_FOUND AND WIN32 AND ISMRMRD_INSTALL_DEPENDENCIES)
endif (DEFINED ENV{HDF5_ROOT})
message("Install hdf5 libraries from ${HDF5_BIN_DIR} ")
install( DIRECTORY ${HDF5_BIN_DIR} DESTINATION bin/.. FILES_MATCHING PATTERN "*.dll" )
-endif (HDF5_FOUND AND WIN32 AND ISMRMRD_INSTALL_DEPENDENCIES)
+endif (USE_HDF5_DATASET_SUPPORT AND WIN32 AND ISMRMRD_INSTALL_DEPENDENCIES)
# include directories for main library
set(ISMRMRD_TARGET_INCLUDE_DIRS
@@ -199,9 +205,9 @@ install(FILES cmake/FindIsmrmrd.cmake cmake/FindFFTW3.cmake DESTINATION share/is
add_subdirectory(doc)
add_subdirectory(utilities)
-if (HDF5_FOUND)
+if (USE_HDF5_DATASET_SUPPORT)
add_subdirectory(examples/c)
-endif (HDF5_FOUND)
+endif (USE_HDF5_DATASET_SUPPORT)
# TODO: make this work on Windows
if (NOT WIN32)
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