# File: makefile_GNU
# Why:  Creates the library of grammars for o2 compiler /compiler: libo2grammars.a
#       or gens the symbol table code and its pdf document
# Ks:   make sure u run GNU make: gmake or make depending on your system
# Library placement: 
#   Rlse:   /usr/local/yacco2/compiler/o2qammars/lib/Release
#   Dbg:    /usr/local/yacco2/compiler/o2gammars/lib/Debug
#   Genw:   for the pdf file: yacco2/docs
#           for the yacco2_stbl h and cpp files: yacco2/compiler/grammars
#
# How to run: U must choose the label to execute: Rlse, Dbg
#   Rlse --- gen the fast version of library with no debug support
#   Dbg --- gen the debug version of library
#   Genw --- gen the pdf document and the cpp code 
#            from cweb see www.tug.org for details on obtaining code
#            for the literate programming environment aka CWEB
#            and please join Tug. It is a marvalous FOSS
#            Note: U do not need to use Genw as *.cpp and pdf 
#                  document are included in the ``yacco2'' package
# Notice: Some possible construction to be done
#  1) Adjust base_dir variable if the ``yacco2'' package is moved elsewhere. 
#     For example, if u installed the ``yacco2'' package in /opt/yacco2
#       Set the base_dir variable in this file to: base_dir = /opt/
#       The trailing / must be there or ugly things will happen.
#
#  2) Make sure u know where the ``ranlib'' utility resides on your system
#     If it's already defined in your ``bash'' ``PATH'' varable then 
#     just space out the below ``RANLIB'' variable
#     RANLIB =
#     or set it to point to its residence as what this file has done
#
# Example: gen the debug version of the library
#  cd /usr/local//yacco2/compiler/grammars
#  make Dbg -f GNU_makefile
#
CC := g++
02_target_dir :=
ifeq ($(MAKECMDGOALS),Rlse)
O2_target_dir := Release
else
O2_target_dir := Debug
endif

###
# Set up c++ compiler and ld linker options
###
Rlse: Compile_opts :=  -c -o3 -pthread 
	
Dbg: Compile_opts := -g -c -pthread

###
# Set up directories
###
Base_o2     := $(O2)
O2_bin      := $(Base_o2)/bin
O2_eternals := $(Base_o2)/externals
O2_stbl     := $(Base_o2)/compiler/stbl
O2_docs     := $(Base_o2)/docs
O2_lib      := $(Base_o2)/library
O2_lib_grms := $(Base_o2)/library/grammars
O2_cc_grms  := $(Base_o2)/compiler/grammars
O2_cc       := $(Base_o2)/compiler/o2
O2_includes :=   -I'$(O2_cc_grms)' -I'$(O2_cc)' -I'$(O2_lib)' -I'$(O2_lib_grms)'
	
###
#   Objects to compile
##
Objects_to_compile:= $(patsubst %.cpp,%.o,$(wildcard *.cpp))
	
###
#    Compile, link, and move O2 into bin account 
###
	
Rlse: Compile Move_rlse_lib
Move_rlse_lib:
	rm -f $(O2_cc_grms)/lib/$(O2_target_dir)/libo2grammars.a
	$(AR) rv $(O2_cc_grms)/lib/$(O2_target_dir)/libo2grammars.a $(Objects_to_compile)
	rm -f *.o 
Dbg: Compile Move_dbg_lib	
Move_dbg_lib:
	rm -f $(O2_cc_grms)/lib/$(O2_target_dir)/libo2grammars.a
	$(AR) rv $(O2_cc_grms)/lib/$(O2_target_dir)/libo2grammars.a $(Objects_to_compile)
	$(RANLIB) $(O2_cc_grms)/lib/$(O2_target_dir)/libo2grammars.a
	rm -f *.o 

Compile: $(Objects_to_compile)
%.o: %.cpp
	$(CC) $(Compile_opts) $(O2_includes)   $< -o $@


Genw:
	cweave $(O2_stbl)yacco2_stbl
	ctangle -l +e $(O2_stbl)yacco2_stbl
	pdftex yacco2_stbl
	mv yacco2_stbl.pdf $(O2_docs)
	rm yacco2_stbl.idx
	rm yacco2_stbl.scn
	rm yacco2_stbl.toc
	rm yacco2_stbl.tex
	rm yacco2_stbl.log
	rm yacco2_stbl.c