configure

# This script is executed automatically by R when
# a user installs osqp from the R command line using
# "R CMD install .". It builds the osqp static Library
# via cmake so that R can link to it if cmake exists
# in this system.   Otherwise it will be built via
# the R Makevars system (e.g. because it is being
# built on the CRAN build farm)

# terminate on failure
set -e
set -x

# Per R-exts section on using CMAKE

: ${R_HOME=`R RHOME`}
if test -z "${R_HOME}"; then
  echo "could not determine R_HOME"
  exit 1
fi
CC=`"${R_HOME}/bin/R" CMD config CC`
CFLAGS=`"${R_HOME}/bin/R" CMD config CFLAGS`
CPPFLAGS=`"${R_HOME}/bin/R" CMD config CPPFLAGS`
CXX=`"${R_HOME}/bin/R" CMD config CXX`
CXXFLAGS=`"${R_HOME}/bin/R" CMD config CXXFLAGS`
LDFLAGS=`"${R_HOME}/bin/R" CMD config LDFLAGS`

if [ -x "$(command -v cmake)" ]; then
   	echo "Making fixes to osqp_sources for CRAN"
	(cd src && ${R_HOME}/bin/Rscript ../inst/58f00bd_fixes/make_fixes.R)
	echo "-- Trying to build libosqp.a via cmake ..."
	cd src/osqp_sources
	mkdir -p build
	cd build
	cmake -DR_HOME="${R_HOME}" -DCMAKE_BUILD_TYPE=Release -DBUILD_SHARED_LIBS:bool=OFF -DCMAKE_POSITION_INDEPENDENT_CODE:bool=ON -DR_LANG=TRUE -DCMAKE_INSTALL_PREFIX:PATH=../../ ..
	cmake --build . --target install
	cd ..
	rm -rf build/
	cd ../../

	echo "-- Built libosqp.a"

else
	echo "-- cmake is not installed on this system. OSQP library libosqp.a will be built via custom makefile."
fi