# //@C Copyright Notice
# //@C ================
# //@C This file is part of CPSW. It is subject to the license terms in the LICENSE.txt
# //@C file found in the top-level directory of this distribution and at
# //@C https://confluence.slac.stanford.edu/display/ppareg/LICENSE.html.
# //@C
# //@C No part of CPSW, including this file, may be copied, modified, propagated, or
# //@C distributed except according to the terms contained in the LICENSE.txt file.

# (Default) Definitions for CPSW Makefiles

# host architecture
HARCH=host
# Architectures to build
ARCHES=$(HARCH)

# Save default (host) tools
CC_host    :=$(CC)
CXX_host   :=$(CXX)
AR_host    :=$(AR)
RANLIB_host:=$(or $(RANLIB),ranlib)

GIT_VERSION_STRING:=$(shell echo -n '"'`git describe --always --dirty`'"')

# if CROSS_xxx (for target architecture 'xxx' is not defined then try CROSS_default)
#
# For a host build this should be empty (since we assume the tools to be in PATH)
# but the user may override by defining CROSS_host...
#
# arch2var(VARIABLE_PREFIX)
define arch2var
$(1)=$$(or $$($(1)_$$(TARNM)),$$($(1)_default))
endef

# arch2libvar(VARIABLE_PREFIX)
define arch2libvar
$(1)_DIR=$$(or $$($(1)_DIR_$$(TARNM)),$$($(1)_DIR_default))
$(1)inc_DIR=$$(or $$($(1)inc_DIR_$$(TARNM)),$$($(1)inc_DIR_default),$$(addsuffix /include,$$($(1)_DIR)))
$(1)lib_DIR=$$(or $$($(1)lib_DIR_$$(TARNM)),$$($(1)lib_DIR_default),$$(addsuffix /lib,$$($(1)_DIR)))
endef

# When expanding any of the ARCHSPECIFIC_VARS
# we'll try $(var_$(TARNM)) and $(var_default)
ARCHSPECIFIC_VARS+=CROSS
ARCHSPECIFIC_VARS+=WITH_SHARED_LIBRARIES
ARCHSPECIFIC_VARS+=WITH_STATIC_LIBRARIES
ARCHSPECIFIC_VARS+=WITH_PYCPSW
ARCHSPECIFIC_VARS+=BOOST_PYTHON_LIB
ARCHSPECIFIC_VARS+=USR_CPPFLAGS
ARCHSPECIFIC_VARS+=USR_CXXFLAGS
ARCHSPECIFIC_VARS+=USR_CFLAGS
ARCHSPECIFIC_VARS+=USR_LDFLAGS

# For all of the ARCHSPECIFIC_LIBVARS
# we'll construct
# var_DIR, varinc_DIR, varlib_DIR
# and let each one try e.g.,
#
# $(<var>inc_DIR_$(TARNM)), $(<var>inc_DIR_default), $(<var>_DIR)/include
#
# (with $(<var>_DIR) also trying $(<var>_DIR_$(TARNM)), $(<var>_DIR_default))
#
ARCHSPECIFIC_LIBVARS+=yaml_cpp
ARCHSPECIFIC_LIBVARS+=boost
ARCHSPECIFIC_LIBVARS+=py

$(foreach var,$(ARCHSPECIFIC_VARS),$(eval $(call arch2var,$(var))))

$(foreach var,$(ARCHSPECIFIC_LIBVARS),$(eval $(call arch2libvar,$(var))))

CROSS_default=$(addsuffix -,$(filter-out $(HARCH),$(TARCH)))

# Tools
CC     =$(CROSS)$(or $(CC_$(TARNM)),$(CC_default),gcc)
CXX    =$(CROSS)$(or $(CXX_$(TARNM)),$(CXX_default),g++)
AR     =$(CROSS)$(or $(AR_$(TARNM)),$(AR_default),ar)
RANLIB =$(CROSS)$(or $(RANLIB_$(TARNM)),$(RANLIB_default),ranlib)
INSTALL=install -C

# Tool options
OPT_CXXFLAGS=-g -Wall -O2
OPT_CFLAGS  =-g -Wall -O2

CPPFLAGS+= $(addprefix -I,$(SRCDIR) $(INCLUDE_DIRS) $(INSTALL_DIR:%=%/include))
CPPFLAGS+= $(addprefix -I,$(subst :, ,$(cpswinc_DIRS)))
CPPFLAGS+= $(USR_CPPFLAGS)
CXXFLAGS+= $(OPT_CXXFLAGS)
CXXFLAGS+= $(USR_CXXFLAGS)
CFLAGS  += $(OPT_CFLAGS)
CFLAGS  += $(USR_CFLAGS)

LDFLAGS += $(USR_LDFLAGS)

VPATH=$(SRCDIR)

FILTERED_TBINS=$(filter-out $(DISABLED_TESTPROGRAMS) %.so,$(TESTPROGRAMS))

RUN_OPTS=''

# Libraries currently required by CPSW itself (and thus by anything using it)

# colon separated dirlist
# Note: += adds a whitespace
cpswinc_DIRS=$(CPSW_DIR)$(addprefix :,$(boostinc_DIR))$(addprefix :,$(yaml_cppinc_DIR))
# colon separated dirlist
cpsw_deplib_DIRS=$(addprefix :,$(boostlib_DIR))$(addprefix :,$(yaml_cpplib_DIR))
cpswlib_DIRS=$(addsuffix /O.$(TARCH),$(CPSW_DIR))$(cpsw_deplib_DIRS)

# Libraries CPSW requires -- must be added to application's <prog>_LIBS variable
CPSW_LIBS   = cpsw yaml-cpp pthread rt dl

STATIC_LIBRARIES=$(STATIC_LIBRARIES_$(WITH_STATIC_LIBRARIES))
SHARED_LIBRARIES=$(SHARED_LIBRARIES_$(WITH_SHARED_LIBRARIES))

# Default values -- DO NOT OVERRIDE HERE but in config.mak or config.local.mak
BOOST_PYTHON_LIB_default     =boost_python
WITH_SHARED_LIBRARIES_default=YES
WITH_STATIC_LIBRARIES_default=NO
WITH_PYCPSW_default          =$(or $(and $(pyinc_DIR),$(WITH_SHARED_LIBRARIES)),NO)

COMMA__:=,
SPACE__:=
SPACE__+=

ifndef SRCDIR
SRCDIR=.
endif

INSTALL_DOC=$(INSTALL_DIR)/$(TARCH)/doc
INSTALL_INC=$(INSTALL_DIR)/$(TARCH)/include
INSTALL_LIB=$(INSTALL_DIR)/$(TARCH)/lib
INSTALL_BIN=$(INSTALL_DIR)/$(TARCH)/bin

# definitions
include $(CPSW_DIR)/../config.mak
-include $(CPSW_DIR)/../config.local.mak
-include $(SRCDIR)/local.mak

ifndef TOPDIR
# Heuristics to find a top-level makefile; assume cpsw can be
# in a sub-directory...
TOPDIR:=$(shell NP=./; while P=$${NP} && NP=$${NP}../ && [ -e $${NP}makefile ] && grep -q CPSW_DIR $${NP}makefile ; do true; done; echo $${P})
endif