configure

#!/bin/sh

RCLR_SRC_DIR=./src
RCLR_NUGET_EXE=${RCLR_SRC_DIR}/.nuget/NuGet.exe
if [ ! -e ${RCLR_SRC_DIR} ] 
then
	echo "error: no suitable package src dir found - last tried ${RCLR_SRC_DIR}"
	CURDIR=`pwd`
	echo "Current directory (pwd) is $CURDIR"	       
	exit 1
fi

# if this variable is defined, no Makefile.win will be generated, 
# and the visual studio compilers are ignored even if installed.
# IGNORE_VISUALSTUDIO=1

./cleanup
MAKEVARS_FILE=$RCLR_SRC_DIR/Makevars
MAKEVARS_INFILE=$MAKEVARS_FILE.in

# In order to write dos-style paths to the generated Makefile.win and co, needs multiple backslashes...
# R_HOME will be something like f:/path/to/R
# bash has the option of R_HOME_BSLASH=${R_HOME//\//\\\\} and it works as expected
# in ash behavior seems to differ from bash, hence the 8 backslashes needed for the substitution to work
slash_to_eight_bslash() {
	RESULT=`echo $1 | sed -e 's/\//\\\\\\\\/g'`
}
# slash_to_eight_bslash c:/tmp/blah
# echo $RESULT
# blah=$RESULT
# echo $blah

# A substitute for cygpath, not present in RTools
# does not work as function (??): sed: -e expression #1, char 8: unterminated `s' command
# dos_to_cyg() {
	# RESULT=`echo $1 | sed -e 's/\\/\//g'`
# }

double_backslash() {
	RESULT=`echo $1 | sed -e 's/\\/\\\\/g'`
}

MONO_CFLAGS=`pkg-config --cflags mono-2`
GLIB_CFLAGS=`pkg-config --cflags glib-2.0`
echo "MONO_CFLAGS=$MONO_CFLAGS"
echo "GLIB_CFLAGS=$GLIB_CFLAGS"

if [ ${#MONO_CFLAGS} -eq 0 ]
then
	echo "error: mono-2 not found"
	exit 1
fi

if [ ${#GLIB_CFLAGS} -eq 0 ]
then
	echo "error: glib-2.0 not found"
	exit 1
fi

# I do not think the following is needed. The solution file would trigger a Target RestorePackages:
#if [ -e ${RCLR_NUGET_EXE} ] 
#then
#	echo "Found ${RCLR_NUGET_EXE}"
#	echo "Trying nuget package restore..."
#    mono ${RCLR_NUGET_EXE} restore -NonInteractive ${RCLR_SRC_DIR}/rClr_monodev.sln
#fi
	
subst_1="s|@MONO_INSTALL_PATH@|$MONO_INSTALL_PATH|g"
subst_2="s|@MONO_INSTALL_PATH64@|$MONO_INSTALL_PATH64|g"
sed -e "$subst_1" -e "$subst_2" $MAKEVARS_INFILE > $MAKEVARS_FILE
echo "Created $MAKEVARS_FILE"
exit 0