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Support building both static and shared libraries
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CMakeLists.txt

Lines changed: 45 additions & 15 deletions
Original file line numberDiff line numberDiff line change
@@ -34,6 +34,10 @@ set(NO_AFFINITY 1)
3434
endif()
3535
option(CPP_THREAD_SAFETY_TEST "Run a massively parallel DGEMM test to confirm thread safety of the library (requires OpenMP and about 1.3GB of RAM)" OFF)
3636
option(CPP_THREAD_SAFETY_GEMV "Run a massively parallel DGEMV test to confirm thread safety of the library (requires OpenMP)" OFF)
37+
option(BUILD_STATIC_LIBS "Build static library" ON)
38+
if(NOT BUILD_STATIC_LIBS AND NOT BUILD_SHARED_LIBS)
39+
set(BUILD_STATIC_LIBS ON CACHE BOOL "Build static library" FORCE)
40+
endif()
3741

3842
# Add a prefix or suffix to all exported symbol names in the shared library.
3943
# Avoids conflicts with other BLAS libraries, especially when using
@@ -183,8 +187,24 @@ if (${DYNAMIC_ARCH})
183187
endif ()
184188

185189
# add objects to the openblas lib
186-
add_library(${OpenBLAS_LIBNAME} ${LA_SOURCES} ${LAPACKE_SOURCES} ${RELA_SOURCES} ${TARGET_OBJS} ${OpenBLAS_DEF_FILE})
187-
target_include_directories(${OpenBLAS_LIBNAME} INTERFACE $<INSTALL_INTERFACE:include/openblas${SUFFIX64}>)
190+
set(OpenBLAS_LIBS "")
191+
if(BUILD_STATIC_LIBS)
192+
add_library(${OpenBLAS_LIBNAME}_static STATIC ${LA_SOURCES} ${LAPACKE_SOURCES} ${RELA_SOURCES} ${TARGET_OBJS} ${OpenBLAS_DEF_FILE})
193+
target_include_directories(${OpenBLAS_LIBNAME}_static INTERFACE $<INSTALL_INTERFACE:include/openblas${SUFFIX64}>)
194+
list(APPEND OpenBLAS_LIBS ${OpenBLAS_LIBNAME}_static)
195+
endif()
196+
if(BUILD_SHARED_LIBS)
197+
add_library(${OpenBLAS_LIBNAME}_shared SHARED ${LA_SOURCES} ${LAPACKE_SOURCES} ${RELA_SOURCES} ${TARGET_OBJS} ${OpenBLAS_DEF_FILE})
198+
target_include_directories(${OpenBLAS_LIBNAME}_shared INTERFACE $<INSTALL_INTERFACE:include/openblas${SUFFIX64}>)
199+
list(APPEND OpenBLAS_LIBS ${OpenBLAS_LIBNAME}_shared)
200+
endif()
201+
if(BUILD_STATIC_LIBS)
202+
add_library(${OpenBLAS_LIBNAME} ALIAS ${OpenBLAS_LIBNAME}_static)
203+
else()
204+
add_library(${OpenBLAS_LIBNAME} ALIAS ${OpenBLAS_LIBNAME}_shared)
205+
endif()
206+
207+
set_target_properties(${OpenBLAS_LIBS} PROPERTIES OUTPUT_NAME ${OpenBLAS_LIBNAME})
188208

189209
# Android needs to explicitly link against libm
190210
if(ANDROID)
@@ -197,21 +217,21 @@ if(MSVC AND BUILD_SHARED_LIBS)
197217
include("${PROJECT_SOURCE_DIR}/cmake/export.cmake")
198218
else()
199219
# Creates verbose .def file (51KB vs 18KB)
200-
set_target_properties(${OpenBLAS_LIBNAME} PROPERTIES WINDOWS_EXPORT_ALL_SYMBOLS true)
220+
set_target_properties(${OpenBLAS_LIBNAME}_shared PROPERTIES WINDOWS_EXPORT_ALL_SYMBOLS true)
201221
endif()
202222
endif()
203223

204224
# Set output for libopenblas
205-
set_target_properties( ${OpenBLAS_LIBNAME} PROPERTIES RUNTIME_OUTPUT_DIRECTORY ${PROJECT_BINARY_DIR}/lib)
206-
set_target_properties( ${OpenBLAS_LIBNAME} PROPERTIES LIBRARY_OUTPUT_NAME_DEBUG "${OpenBLAS_LIBNAME}_d")
207-
set_target_properties( ${OpenBLAS_LIBNAME} PROPERTIES EXPORT_NAME "OpenBLAS")
225+
set_target_properties( ${OpenBLAS_LIBS} PROPERTIES RUNTIME_OUTPUT_DIRECTORY ${PROJECT_BINARY_DIR}/lib)
226+
set_target_properties( ${OpenBLAS_LIBS} PROPERTIES LIBRARY_OUTPUT_NAME_DEBUG "${OpenBLAS_LIBNAME}_d")
227+
set_target_properties( ${OpenBLAS_LIBS} PROPERTIES EXPORT_NAME "OpenBLAS")
208228

209229
foreach (OUTPUTCONFIG ${CMAKE_CONFIGURATION_TYPES})
210230
string( TOUPPER ${OUTPUTCONFIG} OUTPUTCONFIG )
211231

212-
set_target_properties( ${OpenBLAS_LIBNAME} PROPERTIES RUNTIME_OUTPUT_DIRECTORY_${OUTPUTCONFIG} ${PROJECT_BINARY_DIR}/lib/${OUTPUTCONFIG} )
213-
set_target_properties( ${OpenBLAS_LIBNAME} PROPERTIES LIBRARY_OUTPUT_DIRECTORY_${OUTPUTCONFIG} ${PROJECT_BINARY_DIR}/lib/${OUTPUTCONFIG} )
214-
set_target_properties( ${OpenBLAS_LIBNAME} PROPERTIES ARCHIVE_OUTPUT_DIRECTORY_${OUTPUTCONFIG} ${PROJECT_BINARY_DIR}/lib/${OUTPUTCONFIG} )
232+
set_target_properties( ${OpenBLAS_LIBS} PROPERTIES RUNTIME_OUTPUT_DIRECTORY_${OUTPUTCONFIG} ${PROJECT_BINARY_DIR}/lib/${OUTPUTCONFIG} )
233+
set_target_properties( ${OpenBLAS_LIBS} PROPERTIES LIBRARY_OUTPUT_DIRECTORY_${OUTPUTCONFIG} ${PROJECT_BINARY_DIR}/lib/${OUTPUTCONFIG} )
234+
set_target_properties( ${OpenBLAS_LIBS} PROPERTIES ARCHIVE_OUTPUT_DIRECTORY_${OUTPUTCONFIG} ${PROJECT_BINARY_DIR}/lib/${OUTPUTCONFIG} )
215235
endforeach()
216236

217237
enable_testing()
@@ -223,7 +243,12 @@ if (USE_THREAD)
223243
set_property(TARGET ${OpenBLAS_LIBNAME} PROPERTY COMPILE_OPTIONS "-pthread")
224244
set_property(TARGET ${OpenBLAS_LIBNAME} PROPERTY INTERFACE_COMPILE_OPTIONS "-pthread")
225245
endif()
226-
target_link_libraries(${OpenBLAS_LIBNAME} ${CMAKE_THREAD_LIBS_INIT})
246+
if(BUILD_STATIC_LIBS)
247+
target_link_libraries(${OpenBLAS_LIBNAME}_static ${CMAKE_THREAD_LIBS_INIT})
248+
endif()
249+
if(BUILD_SHARED_LIBS)
250+
target_link_libraries(${OpenBLAS_LIBNAME}_shared ${CMAKE_THREAD_LIBS_INIT})
251+
endif()
227252
endif()
228253

229254
#if (MSVC OR NOT NOFORTRAN)
@@ -244,14 +269,14 @@ if (NOT NOFORTRAN)
244269
endif()
245270
endif()
246271

247-
set_target_properties(${OpenBLAS_LIBNAME} PROPERTIES
272+
set_target_properties(${OpenBLAS_LIBS} PROPERTIES
248273
VERSION ${OpenBLAS_MAJOR_VERSION}.${OpenBLAS_MINOR_VERSION}
249274
SOVERSION ${OpenBLAS_MAJOR_VERSION}
250275
)
251276

252277
if (BUILD_SHARED_LIBS AND BUILD_RELAPACK)
253278
if (NOT MSVC)
254-
target_link_libraries(${OpenBLAS_LIBNAME} "-Wl,-allow-multiple-definition")
279+
target_link_libraries(${OpenBLAS_LIBNAME}_shared "-Wl,-allow-multiple-definition")
255280
else()
256281
set(CMAKE_SHARED_LINKER_FLAGS "${CMAKE_SHARED_LINKER_FLAGS} /FORCE:MULTIPLE")
257282
endif()
@@ -314,7 +339,7 @@ endif()
314339
if (NOT ${SYMBOLSUFFIX} STREQUAL "")
315340
message(STATUS "adding suffix ${SYMBOLSUFFIX} to names of exported symbols in ${OpenBLAS_LIBNAME}")
316341
endif()
317-
add_custom_command(TARGET ${OpenBLAS_LIBNAME} POST_BUILD
342+
add_custom_command(TARGET ${OpenBLAS_LIBNAME}_shared POST_BUILD
318343
COMMAND perl ${PROJECT_SOURCE_DIR}/exports/gensymbol "objcopy" "${ARCH}" "${BU}" "${EXPRECISION_IN}" "${NO_CBLAS_IN}" "${NO_LAPACK_IN}" "${NO_LAPACKE_IN}" "${NEED2UNDERSCORES_IN}" "${ONLY_CBLAS_IN}" \"${SYMBOLPREFIX}\" \"${SYMBOLSUFFIX}\" "${BUILD_LAPACK_DEPRECATED}" > ${PROJECT_BINARY_DIR}/objcopy.def
319344
COMMAND objcopy -v --redefine-syms ${PROJECT_BINARY_DIR}/objcopy.def ${PROJECT_BINARY_DIR}/lib/lib${OpenBLAS_LIBNAME}.so
320345
COMMENT "renaming symbols"
@@ -325,7 +350,7 @@ endif()
325350
# Install project
326351

327352
# Install libraries
328-
install(TARGETS ${OpenBLAS_LIBNAME}
353+
install(TARGETS ${OpenBLAS_LIBS}
329354
EXPORT "OpenBLAS${SUFFIX64}Targets"
330355
RUNTIME DESTINATION ${CMAKE_INSTALL_BINDIR}
331356
ARCHIVE DESTINATION ${CMAKE_INSTALL_LIBDIR}
@@ -387,7 +412,12 @@ endif()
387412

388413
if(NOT NO_LAPACKE)
389414
message (STATUS "Copying LAPACKE header files to ${CMAKE_INSTALL_INCLUDEDIR}")
390-
add_dependencies( ${OpenBLAS_LIBNAME} genlapacke)
415+
if(BUILD_STATIC_LIBS)
416+
add_dependencies( ${OpenBLAS_LIBNAME}_static genlapacke)
417+
endif()
418+
if(BUILD_STATIC_LIBS)
419+
add_dependencies( ${OpenBLAS_LIBNAME}_shared genlapacke)
420+
endif()
391421
FILE(GLOB_RECURSE INCLUDE_FILES "${CMAKE_CURRENT_SOURCE_DIR}/lapack-netlib/LAPACKE/*.h")
392422
install (FILES ${INCLUDE_FILES} DESTINATION ${CMAKE_INSTALL_INCLUDEDIR})
393423

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