implement install-src target in the src/ module

src/module.mk

@@ -1,6 +1,9 @@
 DIR          := src
 MODNAME      := flexisusy
 
+LIBFLEXI_MK  := \
+		$(DIR)/module.mk
+
 LIBFLEXI_SRC := \
 		$(DIR)/betafunction.cpp \
 		$(DIR)/build_info.cpp \
@@ -23,12 +26,68 @@ LIBFLEXI_SRC := \
 		$(DIR)/utils.cpp \
 		$(DIR)/wrappers.cpp
 
+LIBFLEXI_HDR := \
+		$(DIR)/betafunction.hpp \
+		$(DIR)/build_info.hpp \
+		$(DIR)/command_line_options.hpp \
+		$(DIR)/compound_constraint.hpp \
+		$(DIR)/constraint.hpp \
+		$(DIR)/consts.hpp \
+		$(DIR)/convergence_tester.hpp \
+		$(DIR)/coupling_monitor.hpp \
+		$(DIR)/def.h \
+		$(DIR)/dilog.h \
+		$(DIR)/error.hpp \
+		$(DIR)/ew_input.hpp \
+		$(DIR)/gsl_utils.hpp \
+		$(DIR)/gut_scale_calculator.hpp \
+		$(DIR)/initial_guesser.hpp \
+		$(DIR)/linalg2.hpp \
+		$(DIR)/linalg.h \
+		$(DIR)/logger.hpp \
+		$(DIR)/lowe.h \
+		$(DIR)/matching.hpp \
+		$(DIR)/mathdefs.hpp \
+		$(DIR)/minimizer.hpp \
+		$(DIR)/mssm_twoloophiggs.h \
+		$(DIR)/mycomplex.h \
+		$(DIR)/nmssm2loop.h \
+		$(DIR)/nmssm_twoloophiggs.h \
+		$(DIR)/numerics.h \
+		$(DIR)/numerics.hpp \
+		$(DIR)/problems.hpp \
+		$(DIR)/rge.h \
+		$(DIR)/rg_flow.hpp \
+		$(DIR)/rk.hpp \
+		$(DIR)/root_finder.hpp \
+		$(DIR)/scan.hpp \
+		$(DIR)/sfermions.hpp \
+		$(DIR)/slha_io.hpp \
+		$(DIR)/small_matrices.hpp \
+		$(DIR)/spectrum_generator_settings.hpp \
+		$(DIR)/utils.h \
+		$(DIR)/wrappers.hpp \
+		$(DIR)/xpr-base.h \
+		$(DIR)/xpr-matrix.h \
+		$(DIR)/xpr-vector.h
+
 ifneq ($(findstring two_scale,$(ALGORITHMS)),)
 LIBFLEXI_SRC += \
 		$(DIR)/two_scale_composite_convergence_tester.cpp \
 		$(DIR)/two_scale_convergence_tester.cpp \
 		$(DIR)/two_scale_running_precision.cpp \
 		$(DIR)/two_scale_solver.cpp
+
+LIBFLEXI_HDR += \
+		$(DIR)/two_scale_composite_convergence_tester.hpp \
+		$(DIR)/two_scale_constraint.hpp \
+		$(DIR)/two_scale_convergence_tester.hpp \
+		$(DIR)/two_scale_convergence_tester_skeleton.hpp \
+		$(DIR)/two_scale_initial_guesser.hpp \
+		$(DIR)/two_scale_matching.hpp \
+		$(DIR)/two_scale_model.hpp \
+		$(DIR)/two_scale_running_precision.hpp \
+		$(DIR)/two_scale_solver.hpp
 endif
 
 ifneq ($(findstring lattice,$(ALGORITHMS)),)
@@ -39,6 +98,17 @@ LIBFLEXI_SRC += \
 		$(DIR)/lattice_solver.cpp \
 		$(DIR)/SM.cpp \
 		$(DIR)/fortran_utils.f
+
+LIBFLEXI_HDR += \
+		$(DIR)/lattice_compound_constraint.hpp \
+		$(DIR)/lattice_constraint.hpp \
+		$(DIR)/lattice_convergence_tester.hpp \
+		$(DIR)/lattice_foreign_constraint.hpp \
+		$(DIR)/lattice_initial_guesser.hpp \
+		$(DIR)/lattice_model.hpp \
+		$(DIR)/lattice_numerical_constraint.hpp \
+		$(DIR)/lattice_solver.hpp \
+		$(DIR)/SM.hpp
 endif
 
 LIBFLEXI_OBJ := \
@@ -50,10 +120,18 @@ LIBFLEXI_DEP := \
 
 LIBFLEXI     := $(DIR)/lib$(MODNAME)$(LIBEXT)
 
+LIBFLEXI_INSTALL_DIR := $(INSTALL_DIR)/$(DIR)
+
 .PHONY:         all-$(MODNAME) clean-$(MODNAME) distclean-$(MODNAME)
 
 all-$(MODNAME): $(LIBFLEXI)
 
+install-src::
+		mkdir -p $(LIBFLEXI_INSTALL_DIR)
+		cp $(LIBFLEXI_SRC) $(LIBFLEXI_INSTALL_DIR)
+		cp $(LIBFLEXI_HDR) $(LIBFLEXI_INSTALL_DIR)
+		cp $(LIBFLEXI_MK) $(LIBFLEXI_INSTALL_DIR)
+
 clean-$(MODNAME)-dep:
 		-rm -f $(LIBFLEXI_DEP)