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#!/bin/sh
# if CONFIGURED is set, then we don't attempt to run findjava
# (useful when building inside rJava)
if [ -z "$CONFIGURED" ]; then
echo "Generate Windows-specific files (src/jvm-w32) ..."
make -C src/win32
if [ $? != 0 ]; then
exit 1
fi
echo "Find Java..."
# findjava honors JAVA_HOME environment variable, so we can safely overwite it
if [ -e src/win32/findjava.exe ]; then
JAVA_HOME=`src/win32/findjava -s -f`
R_HOME=`src/win32/findjava -R -s -f`
fi
fi
if [ x$JAVA_HOME = x ]; then
echo "ERROR: cannot find Java Development Kit." >&2
echo " Please set JAVA_HOME to specify its location manually" >&2
exit 1
fi
if [ x$R_HOME = x ]; then
echo "ERROR: cannot find R. Please set R_HOME correspondingly." >&2
exit 1
fi
echo " JAVA_HOME=$JAVA_HOME"
echo " R_HOME=$R_HOME"
echo "JAVAHOME:=$JAVA_HOME" > src/Makefile.wconf
echo "RHOME:=$R_HOME" >> src/Makefile.wconf
if [ -e "$JAVA_HOME/bin/javah.exe" ]; then ## does the JDK have javah?
echo 'JDK includes javah.exe'
echo 'JAVAH=$(JAVAHOME)/bin/javah' >> src/Makefile.wconf
else ## else we have to create headers during the compilation
echo 'JDK has no javah.exe - using javac -h . instead'
## if this is at least 1.8 we can set source/target
## it is mandatory for 14 (and may be earlier) due to yield
tgt=`"${JAVA_HOME}/bin/java" -cp tools getsp -minver 8`
echo "Is the Java version at least 1.8 ... $tgt"
if [ x$tgt = xyes ]; then
echo 'JFLAGS=-source 1.8 -target 1.8 -h .' >> src/Makefile.wconf
else
echo 'JFLAGS=-h .' >> src/Makefile.wconf
fi
fi
echo "Creating Makefiles ..."
cp Makefile.win Makefile
cp src/Makefile.win src/Makefile
echo "Configuration done."
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