Add QE::Solvers

CMakeLists.txt

@@ -204,6 +204,7 @@ add_subdirectory(FFTXlib)
 add_subdirectory(UtilXlib)
 add_subdirectory(Modules)
 add_subdirectory(LAXlib)
+add_subdirectory(KS_Solvers)
 add_subdirectory(dft-d3)
 add_subdirectory(PW)
 

KS_Solvers/CMakeLists.txt

@@ -0,0 +1,26 @@
+set(sources
+    Davidson/david_param.f90
+    Davidson/cegterg.f90
+    Davidson/regterg.f90
+    Davidson_RCI/david_rci.f90
+    CG/cg_param.f90
+    CG/ccgdiagg.f90
+    CG/rcgdiagg.f90
+    CG/rotate_wfc_gamma.f90
+    CG/rotate_wfc_k.f90
+    PPCG/ppcg_param.f90
+    PPCG/ppcg_gamma.f90
+    PPCG/ppcg_k.f90
+)
+
+# TODO rename all sources *.f90 -> *.F90
+set_source_files_properties(${sources} PROPERTIES COMPILE_FLAGS -cpp)
+
+qe_add_library(qe_solvers ${sources})
+add_library(QE::Solvers ALIAS qe_solvers)
+target_link_libraries(qe_solvers
+    PUBLIC
+        QE::LAX
+        QE::UTILX
+        QE::MPI_Fortran)
+qe_install_target(qe_solvers)

PW/CMakeLists.txt

@@ -242,7 +242,7 @@ target_link_libraries(qe_pw
     PUBLIC
         QE::LAX
         QE::UTILX  # TODO direct or transitive via QE::LAX?
-        # QE::Solvers # TODO
+        QE::Solvers
         QE::Modules
         QE::FFTX
         QE::DFTD3