hopefully this workaround of cmake bug #9220 works for MSVC too

This commit is contained in:
Gael Guennebaud 2011-10-24 13:36:49 +02:00
parent 1ddf88060b
commit e44c19d1cc
3 changed files with 81 additions and 24 deletions

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@ -1,25 +1,19 @@
project(EigenBlas CXX)
if( NOT DEFINED EIGEN_Fortran_COMPILER_WORKS OR EIGEN_Fortran_COMPILER_WORKS)
include("../cmake/language_support.cmake")
workaround_9220(Fortran EIGEN_Fortran_COMPILER_WORKS)
if(EIGEN_Fortran_COMPILER_WORKS)
enable_language(Fortran OPTIONAL)
if(CMAKE_Fortran_COMPILER_WORKS)
set(EIGEN_Fortran_COMPILER_WORKS TRUE CACHE INTERNAL "workaround cmake's enable_language issue")
else()
set(EIGEN_Fortran_COMPILER_WORKS FALSE CACHE INTERNAL "workaround cmake's enable_language issue")
endif()
endif()
add_custom_target(blas)
set(EigenBlas_SRCS single.cpp double.cpp complex_single.cpp complex_double.cpp xerbla.cpp)
if(CMAKE_Fortran_COMPILER_WORKS)
message(WARNING " No fortran compiler has been detected, the blas build will be incomplete.")
if(EIGEN_Fortran_COMPILER_WORKS)
set(EigenBlas_SRCS ${EigenBlas_SRCS}
complexdots.f
@ -29,8 +23,11 @@ set(EigenBlas_SRCS ${EigenBlas_SRCS}
zhbmv.f zhpr.f ztpmv.f chpmv.f ctbmv.f ctpsv.f dsbmv.f dspr.f dtpmv.f sspr2.f
stbsv.f zhpmv.f ztbmv.f ztpsv.f
)
else()
endif(CMAKE_Fortran_COMPILER_WORKS)
message(WARNING " No fortran compiler has been detected, the blas build will be incomplete.")
endif()
add_library(eigen_blas_static ${EigenBlas_SRCS})
add_library(eigen_blas SHARED ${EigenBlas_SRCS})
@ -47,7 +44,7 @@ install(TARGETS eigen_blas eigen_blas_static
LIBRARY DESTINATION lib
ARCHIVE DESTINATION lib)
if(CMAKE_Fortran_COMPILER_WORKS)
if(EIGEN_Fortran_COMPILER_WORKS)
if(EIGEN_LEAVE_TEST_IN_ALL_TARGET)
add_subdirectory(testing) # can't do EXCLUDE_FROM_ALL here, breaks CTest

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@ -0,0 +1,65 @@
# cmake/modules/language_support.cmake
#
# Temporary additional general language support is contained within this
# file.
# This additional function definition is needed to provide a workaround for
# CMake bug 9220.
# On debian testing (cmake 2.6.2), I get return code zero when calling
# cmake the first time, but cmake crashes when running a second time
# as follows:
#
# -- The Fortran compiler identification is unknown
# CMake Error at /usr/share/cmake-2.6/Modules/CMakeFortranInformation.cmake:7 (GET_FILENAME_COMPONENT):
# get_filename_component called with incorrect number of arguments
# Call Stack (most recent call first):
# CMakeLists.txt:3 (enable_language)
#
# My workaround is to invoke cmake twice. If both return codes are zero,
# it is safe to invoke ENABLE_LANGUAGE(Fortran OPTIONAL)
function(workaround_9220 language language_works)
#message("DEBUG: language = ${language}")
set(text
"project(test NONE)
cmake_minimum_required(VERSION 2.6.0)
enable_language(${language} OPTIONAL)
"
)
file(REMOVE_RECURSE ${CMAKE_BINARY_DIR}/language_tests/${language})
file(MAKE_DIRECTORY ${CMAKE_BINARY_DIR}/language_tests/${language})
file(WRITE ${CMAKE_BINARY_DIR}/language_tests/${language}/CMakeLists.txt
${text})
execute_process(
COMMAND ${CMAKE_COMMAND} .
WORKING_DIRECTORY ${CMAKE_BINARY_DIR}/language_tests/${language}
RESULT_VARIABLE return_code
OUTPUT_QUIET
ERROR_QUIET
)
if(return_code EQUAL 0)
# Second run
execute_process (
COMMAND ${CMAKE_COMMAND} .
WORKING_DIRECTORY ${CMAKE_BINARY_DIR}/language_tests/${language}
RESULT_VARIABLE return_code
OUTPUT_QUIET
ERROR_QUIET
)
if(return_code EQUAL 0)
set(${language_works} ON PARENT_SCOPE)
else(return_code EQUAL 0)
set(${language_works} OFF PARENT_SCOPE)
endif(return_code EQUAL 0)
else(return_code EQUAL 0)
set(${language_works} OFF PARENT_SCOPE)
endif(return_code EQUAL 0)
endfunction(workaround_9220)
# Temporary tests of the above function.
#workaround_9220(CXX CXX_language_works)
#message("CXX_language_works = ${CXX_language_works}")
#workaround_9220(CXXp CXXp_language_works)
#message("CXXp_language_works = ${CXXp_language_works}")

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@ -1,19 +1,14 @@
project(EigenLapack CXX)
if( NOT DEFINED EIGEN_Fortran_COMPILER_WORKS OR EIGEN_Fortran_COMPILER_WORKS)
include("../cmake/language_support.cmake")
workaround_9220(Fortran EIGEN_Fortran_COMPILER_WORKS)
if(EIGEN_Fortran_COMPILER_WORKS)
enable_language(Fortran OPTIONAL)
if(CMAKE_Fortran_COMPILER_WORKS)
set(EIGEN_Fortran_COMPILER_WORKS TRUE CACHE INTERNAL "workaround cmake's enable_language issue")
else()
set(EIGEN_Fortran_COMPILER_WORKS FALSE CACHE INTERNAL "workaround cmake's enable_language issue")
endif()
endif()
add_custom_target(lapack)
include_directories(../blas)
@ -21,7 +16,7 @@ set(EigenLapack_SRCS
single.cpp double.cpp complex_single.cpp complex_double.cpp ../blas/xerbla.cpp
)
if(CMAKE_Fortran_COMPILER_WORKS)
if(EIGEN_Fortran_COMPILER_WORKS)
get_filename_component(eigen_full_path_to_reference_to_reference_lapack "./reference/" ABSOLUTE)
if(EXISTS ${eigen_full_path_to_reference_to_reference_lapack})
@ -358,7 +353,7 @@ reference/ctbcon.f reference/dormhr.f reference/sla_
)
endif()
endif(CMAKE_Fortran_COMPILER_WORKS)
endif(EIGEN_Fortran_COMPILER_WORKS)
add_library(eigen_lapack_static ${EigenLapack_SRCS})
add_library(eigen_lapack SHARED ${EigenLapack_SRCS})