#
# build.rb
# Configure and build Rappture extension

##############################################################################
# The configure script should set these local configuration options.
# These are options which Ruby would not know (e.g. Rappture, C++).

rappture_dir  = "@prefix@"
cxx           = "@CXX@"
cxxflags      = "@CXXFLAGS@"
srcdir	      = "@srcdir@"
install	      = "@INSTALL@"
shlib_cflags  = "@SHLIB_CFLAGS@"
shlib_ldflags  = "@SHLIB_LDFLAGS@"

##############################################################################
# Get the remaining configuration options from the Config module, created
# during the Ruby installation process.

require 'rbconfig'

objext        = Config::CONFIG["OBJEXT"]
dlext         = Config::CONFIG["DLEXT"]
rubydir       = Config::CONFIG["prefix"]
rb_archdir    = Config::CONFIG["archdir"]
sitedir       = Config::CONFIG["sitedir"]
ldshared      = Config::CONFIG["LDSHARED"]
ldflags       = Config::CONFIG["LDFLAGS"]
libs          = Config::CONFIG["LIBS"]
cxx_dlflags   = Config::CONFIG["CCDLFLAGS"]  # XXX This is for CC, not CXX

##############################################################################
# Values needed in Makefile

source        = "Ruby_Rappture"
target        = "Rappture"
exceptions    = "-DRAISE_EXCEPTIONS"

##############################################################################
# Create Makefile

f = File.new("Makefile.ruby", "w")
f.printf("\n")
f.printf("srcdir        = #{srcdir}\n")
f.printf("incdir        = $(RAPPTURE_DIR)/include\n")
f.printf("archdir       = #{rb_archdir}\n")
f.printf("SOURCE        = #{source}\n")
f.printf("TARGET        = #{target}\n\n")
f.printf("OBJEXT        = #{objext}\n")
f.printf("DLEXT         = #{dlext}\n\n")
f.printf("RAPPTURE_DIR  = #{rappture_dir}\n")
f.printf("RUBY_DIR      = #{rubydir}\n")
f.printf("SITE_DIR      = #{sitedir}\n\n")
f.printf("SITE_DIR      = $(RAPPTURE_DIR)/lib/ruby/ruby_site\n\n")
f.printf("CXX           = #{cxx}\n")
f.printf("CFLAGS        = #{cxxflags}\n")
f.printf("CXX_DLFLAGS   = #{cxx_dlflags}\n")
f.printf("INCLUDES      = -I$(incdir) -I#{srcdir}/../../src/core -I$(archdir)/\n")
f.printf("INSTALL       = #{install}\n")
f.printf("SHLIB_FLAGS   = $(CFLAGS) $(CXX_DLFLAGS) $(LDFLAGS) $(INCLUDES)\n\n")
f.printf("EXCEPTIONS    = #{exceptions}\n\n")
f.printf("SHLIB_LD      = #{ldshared}\n")
f.printf("LDFLAGS	= #{ldflags}\n")
f.printf("LIBS          = -L../../src/core -lrappture #{libs}\n\n")
f.printf("package	= $(TARGET).$(DLEXT)\n\n")
f.printf("all: extension\n\n")
f.printf("extension: $(package)\n")
f.printf("$(package): $(srcdir)/$(SOURCE).cc\n")
f.printf("	$(SHLIB_LD) $(SHLIB_FLAGS) $(EXCEPTIONS) $< -o $@ $(LIBS)\n\n")
f.printf("install: $(package)\n")
f.printf("	$(INSTALL) -m 0755 $(package) $(SITE_DIR)\n\n")
f.close
 
##############################################################################
# Build the extension

#`make extension`
#`make install`