## We now use configure to find where NLopt is installed. 
##
## If it is not found, it is downloaded and installed from source -- but such
## a build scheme is not permitted within Debian, or on Launchpad, or ... so
## the preference is use a supplied version of NLopt

PKG_CFLAGS= -I/usr/local/include 
PKG_LIBS= -L/usr/local/lib -lnlopt -lm 

## Old Makevars code below



# Copyright (C) 2010 Jelmer Ypma. All Rights Reserved.
# This code is published under the L-GPL.
#
# File:   Makevars.in
# Author: Jelmer Ypma
# Date:   10 June 2010
#
# 16-01-2011: Changed --disable-shared to --enable-shared to compile with -fPIC
# 16-06-2011: Updated version number
# 09-07-2011: Download and untar NLopt code using Rscript
# 01-09-2011: Added check on empty SRCDIR
#             Added CC, CFLAGS, etc. to NLopt ./configure
# 09-09-2011: Changed CURDIR to PWD which is not supported on Solaris Make
# 21-10-2011: Changed ${PWD} to $(shell pwd) which is not supported on Solaris Make
# 24-10-2011: Changed $(shell pwd) to `pwd` which is supported on Solaris Make
# 24-10-2011: Removed SRCDIR macro, using `pwd` when needed instead
# 28-10-2011: Changed shell to `` in downloading and extracting code
# 18-11-2011: Changed CRLF and CR line endings to LF
# 21-02-2013: Changed NLOPT_VERSION to 2.3
#             Included --with-cxx option in configure to allow for StoGo algorithm.
#             Linking to libnlopt_cxx.a instead of libnlopt.a
# 08-07-2013: Changed CFLAGS to NLOPT_CFLAGS and similarly for CC, CPP, CXX,
#             CXXFLAGS, and CXXCPP to prevent overriding user customizations.
#             For clarity some of the other macros are now prefixed with NLOPTR
#             instead of NLOPT.
# 08-07-2013: Added --vanilla flag to Rscript. This solves problems if someone sets
#             a different home directory with setwd in Rprofile.
# 08-07-2013: Added `pwd` to NLOPTR_LIBS and NLOPTR_INCL.
# 05-11-2013: Changed NLOPT_VERSION to 2.4
# 07-11-2013: Removed -lstdc++ from linker statement. A file dummy.cpp (with C++ extension)
#             is added to the source directory to ensure linking with C++. Thanks to 
#             Brian Ripley for bringing this up.
# 12-11-2013: Replace 'sqrt(' by 'sqrt((double) ' in isres/isres/c in NLopt. This cast
#             is not implemented in NLopt, but causes compilation errors on some systems.
# 19-11-2013: Wrap code in util/qsort_r.c in NLopt in extern "C" as requested by Brian 
#             Ripley to fix compilation on Solaris.
# 07-07-2014: Changed NLOPT_VERSION to 2.4.2

# # define NLopt version
# NLOPT_VERSION = 2.4.2

# # C Compiler options
# NLOPTR_CFLAGS = 

# # additional C Compiler options for linking
# NLOPTR_CLINKFLAGS = 

# # Libraries necessary to link with NLopt
# NLOPTR_LIBS = -lm `pwd`/nlopt-${NLOPT_VERSION}/lib/libnlopt_cxx.a

# # Necessary Include dirs 
# NLOPTR_INCL = -I`pwd`/nlopt-${NLOPT_VERSION}/include

# # Get R compilers and flags
# NLOPT_CC=`"${R_HOME}/bin/R" CMD config CC`
# NLOPT_CFLAGS=`"${R_HOME}/bin/R" CMD config CFLAGS`

# NLOPT_CPP=`"${R_HOME}/bin/R" CMD config CPP`
# NLOPT_CPPFLAGS=`"${R_HOME}/bin/R" CMD config CPPFLAGS`

# NLOPT_CXX=`"${R_HOME}/bin/R" CMD config CXX`
# NLOPT_CXXFLAGS=`"${R_HOME}/bin/R" CMD config CXXFLAGS`

# NLOPT_CXXCPP=`"${R_HOME}/bin/R" CMD config CXXCPP`


# # Define objects for R to build
# OBJECTS = nloptr.o

# # Convert to R macros
# PKG_LIBS=${NLOPTR_CLINKFLAGS} ${NLOPTR_LIBS}
# PKG_CFLAGS=${NLOPTR_CFLAGS} ${NLOPTR_INCL}

# .PHONY: all
     
# all: $(SHLIB)

# $(SHLIB): nlopt-${NLOPT_VERSION}/lib/libnlopt_cxx.a ${OBJECTS}

# nloptr.o: nlopt-${NLOPT_VERSION}/include/nlopt.h
  
# # Compile NLopt source code and clean up
# # --prefix="`pwd`", which is the directory we want to
# # install in, after we changed our current directory
# nlopt-${NLOPT_VERSION}/include/nlopt.h nlopt-${NLOPT_VERSION}/lib/libnlopt_cxx.a: nlopt-${NLOPT_VERSION}/configure
#     echo "Installing library to: `pwd`/nlopt-${NLOPT_VERSION}"
# 	cd nlopt-${NLOPT_VERSION}; \
# 	ed -s isres/isres.c <<< $$'H\n,s/sqrt(/sqrt((double) /g\nw'; \
# 	ed -s util/qsort_r.c <<< $$'H\n1i\nextern "C" {\n.\nw'; \
# 	ed -s util/qsort_r.c <<< $$'H\n$$a\n}\n.\nw'; \
# 	./configure --prefix="`pwd`" --enable-shared --enable-static --without-octave --without-matlab --without-guile --without-python --with-cxx CC="${NLOPT_CC}" CFLAGS="${NLOPT_CFLAGS}" CPP="${NLOPT_CPP}" CPPFLAGS="${NLOPT_CPPFLAGS}" CXX="${NLOPT_CXX}" CXXFLAGS="${NLOPT_CXXFLAGS}" CXXCPP="${NLOPT_CXXCPP}"; \
# 	make; \
# 	make install; \
# 	ls | grep -v ^include$$ | grep -v ^lib$$ | xargs rm -rf; \
#     rm -rf .libs;

# # Extract NLopt source code and remove .tar.gz
# # tar -xzvf nlopt-${NLOPT_VERSION}.tar.gz
# nlopt-${NLOPT_VERSION}/configure: nlopt-${NLOPT_VERSION}.tar.gz
# 	`"${R_HOME}/bin/Rscript" --vanilla -e "untar(tarfile='nlopt-${NLOPT_VERSION}.tar.gz')"`
# 	rm -rf nlopt-${NLOPT_VERSION}.tar.gz

# # Download NLopt source code
# # curl -O http://ab-initio.mit.edu/nlopt/nlopt-${NLOPT_VERSION}.tar.gz
# nlopt-${NLOPT_VERSION}.tar.gz:
# 	`"${R_HOME}/bin/Rscript" --vanilla -e "download.file(url='http://ab-initio.mit.edu/nlopt/nlopt-${NLOPT_VERSION}.tar.gz', destfile='nlopt-${NLOPT_VERSION}.tar.gz')"`

# clean:
# 	rm -rf *.so
# 	rm -rf *.o
# 	rm -rf nlopt-${NLOPT_VERSION}