Link SuiteSparse closure for libneo sparse test

The standalone libneo CMake project links build-tree archives via
link_directories rather than the exported LIBNEO::sparse target, so the
bare sparse archive link omitted UMFPACK/SuiteSparse and failed to link
on hosts where the optional sparse library is built. Supply the complete
UMFPACK dependency closure (umfpack, amd, colamd, suitesparseconfig,
BLAS, LAPACK) explicitly.

Author: slopqueue

tests/libneo/src/sparse/CMakeLists.txt

@@ -1,8 +1,27 @@
 set(CMAKE_RUNTIME_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/sparse)
 
+# libneo's static sparse archive wraps UMFPACK/SuiteSparse but, because this
+# standalone project links libneo's build-tree archives directly via
+# link_directories rather than the exported LIBNEO::sparse target, the
+# transitive UMFPACK/SuiteSparse dependencies are not pulled in automatically.
+# Provide the complete dependency closure explicitly so the test links on
+# hosts where libneo ships the optional sparse library.
+find_package(BLAS REQUIRED)
+find_package(LAPACK REQUIRED)
+find_library(UMFPACK_LIBRARY umfpack)
+find_library(AMD_LIBRARY amd)
+find_library(COLAMD_LIBRARY colamd)
+find_library(SUITESPARSE_CONFIG_LIBRARY suitesparseconfig)
+
 add_executable(test_sparse_mod.x test_sparse_mod.f90)
 target_link_libraries(test_sparse_mod.x PRIVATE neo
                                                   sparse
+                                                  ${UMFPACK_LIBRARY}
+                                                  ${AMD_LIBRARY}
+                                                  ${COLAMD_LIBRARY}
+                                                  ${SUITESPARSE_CONFIG_LIBRARY}
+                                                  BLAS::BLAS
+                                                  LAPACK::LAPACK
                                                   util_for_test)
 add_test(NAME test_sparse_mod COMMAND test_sparse_mod.x)