configure

#!/bin/bash
set -e
unset GCC

while [ $# -gt 0 ] ; do
    maybe_gcc=${1#--with-gcc=}
    if [ "$maybe_gcc" != "$1" ]; then
        GCC=$maybe_gcc
    fi
    shift
done

rm -f foreign-jni.buildinfo

if ! echo '#include <jni.h>' | $GCC -E - 2>&1 > /dev/null ; then
    JNI_GCC_INCLUDES="-I${JAVA_HOME}/include/"
    if [ -d "${JAVA_HOME}/include/linux" ] ; then
        JNI_GCC_INCLUDES="$JNI_GCC_INCLUDES -I${JAVA_HOME}/include/linux/"
    fi
    if [ -d "${JAVA_HOME}/include/darwin" ] ; then
        JNI_GCC_INCLUDES="$JNI_GCC_INCLUDES -I${JAVA_HOME}/include/darwin/"
    fi
    if [ -d "${JAVA_HOME}/include/win32" ] ; then
        JNI_GCC_INCLUDES="$JNI_GCC_INCLUDES -I${JAVA_HOME}/include/win32/"
    fi
    if ! echo '#include <jni.h>' | $GCC ${JNI_GCC_INCLUDES} -E - 2>&1 > /dev/null ; then
        echo "Include file jni.h not found! Please set \$JAVA_HOME or install jni.h in your compiler include path."
        exit 1
    else
        echo cc-options: ${JNI_GCC_INCLUDES} >> foreign-jni.buildinfo
    fi
fi