Fix emulated builds cmake configuration

CMakeLists.txt

@@ -462,6 +462,7 @@ if(BUILD_TESTING)
   endif()
 endif()
 
+if (NOT CMAKE_CROSSCOMPILING)
   if(EIGEN_LEAVE_TEST_IN_ALL_TARGET)
     add_subdirectory(blas)
     add_subdirectory(lapack)
@@ -469,6 +470,7 @@ else()
     add_subdirectory(blas EXCLUDE_FROM_ALL)
     add_subdirectory(lapack EXCLUDE_FROM_ALL)
   endif()
+endif(CMAKE_CROSSCOMPILING)
 
 # add SYCL
 option(EIGEN_TEST_SYCL "Add Sycl support." OFF)

blas/CMakeLists.txt

@@ -4,10 +4,9 @@ project(EigenBlas CXX)
 include("../cmake/language_support.cmake")
 
 workaround_9220(Fortran EIGEN_Fortran_COMPILER_WORKS)
-
 if(EIGEN_Fortran_COMPILER_WORKS)
   enable_language(Fortran OPTIONAL)
-  if(CMAKE_CROSSCOMPILING OR NOT CMAKE_Fortran_COMPILER)
+  if(NOT CMAKE_Fortran_COMPILER)
     set(EIGEN_Fortran_COMPILER_WORKS OFF)
   endif()
 endif()

test/CMakeLists.txt

@@ -287,6 +287,7 @@ ei_add_test(fastmath " ${EIGEN_FASTMATH_FLAGS} ")
 
 # # ei_add_test(denseLM)
 
+if (NOT CMAKE_CROSSCOMPILING)
   if(QT4_FOUND)
     ei_add_test(qtvector "" "${QT_QTCORE_LIBRARY}")
   endif(QT4_FOUND)
@@ -311,13 +312,14 @@ if(PASTIX_FOUND AND (SCOTCH_FOUND OR METIS_FOUND))
     ei_add_test(pastix_support "" "${PASTIX_ALL_LIBS}")
   endif()
 
-if(SPQR_FOUND AND CHOLMOD_FOUND)
+  if(SPQR_FOUND AND CHOLMOD_FOUND AND EIGEN_TEST_CXX11)
     ei_add_test(spqr_support "" "${SPQR_ALL_LIBS}")
   endif()
 
   if(METIS_FOUND)
   ei_add_test(metis_support "" "${METIS_LIBRARIES}")
   endif()
+endif()
 
 string(TOLOWER "${CMAKE_CXX_COMPILER}" cmake_cxx_compiler_tolower)
 if(cmake_cxx_compiler_tolower MATCHES "qcc")

unsupported/test/CMakeLists.txt

@@ -79,6 +79,7 @@ endif()
 
 ei_add_test(sparse_extra   "" "")
 
+if (NOT CMAKE_CROSSCOMPILING)
   find_package(FFTW)
   if(FFTW_FOUND)
     ei_add_property(EIGEN_TESTED_BACKENDS "fftw, ")
@@ -108,6 +109,7 @@ if(NOT EIGEN_TEST_NO_OPENGL)
   else()
       ei_add_property(EIGEN_MISSING_BACKENDS "OpenGL, ")
   endif()
+endif()
 
 ei_add_test(polynomialsolver)
 ei_add_test(polynomialutils)