+
+##########################################
+# Check if we have required environment variables configured for libhdfs
+if test "$libhdfs" = "yes" ; then
+ hdfs_conf_error=0
+ if test "$JAVA_HOME" = "" ; then
+ echo "configure: JAVA_HOME should be defined to jdk/jvm path"
+ hdfs_conf_error=1
+ fi
+ if test "$FIO_LIBHDFS_INCLUDE" = "" ; then
+ echo "configure: FIO_LIBHDFS_INCLUDE should be defined to libhdfs inlude path"
+ hdfs_conf_error=1
+ fi
+ if test "$FIO_LIBHDFS_LIB" = "" ; then
+ echo "configure: FIO_LIBHDFS_LIB should be defined to libhdfs library path"
+ hdfs_conf_error=1
+ fi
+ if test "$hdfs_conf_error" = "1" ; then
+ exit 1
+ fi
+fi
+echo "HDFS engine $libhdfs"
+
+##########################################
+# Check whether we have MTD
+mtd="no"
+cat > $TMPC << EOF
+#include <mtd/mtd-user.h>
+#include <sys/ioctl.h>
+int main(int argc, char **argv)
+{
+ struct mtd_info_user info;
+ info.type = MTD_MLCNANDFLASH;
+ return ioctl(0, MEMGETINFO, &info);
+}
+EOF
+if compile_prog "" "" "mtd"; then
+ mtd="yes"
+fi
+echo "MTD $mtd"
+
+# Check if we have lex/yacc available
+yacc="no"
+yacc_is_bison="no"
+lex="no"
+arith="no"
+if test "$targetos" != "SunOS" ; then
+LEX=$(which lex 2> /dev/null)
+if test -x "$LEX" ; then
+ lex="yes"
+fi
+YACC=$(which bison 2> /dev/null)
+if test -x "$YACC" ; then
+ yacc="yes"
+ yacc_is_bison="yes"
+else
+ YACC=$(which yacc 2> /dev/null)
+ if test -x "$YACC" ; then
+ yacc="yes"
+ fi
+fi
+if test "$yacc" = "yes" && test "$lex" = "yes" ; then
+ arith="yes"
+fi
+
+if test "$arith" = "yes" ; then
+cat > $TMPC << EOF
+extern int yywrap(void);
+
+int main(int argc, char **argv)
+{
+ yywrap();
+ return 0;
+}
+EOF
+if compile_prog "" "-ll" "lex"; then
+ LIBS="-ll $LIBS"
+else
+ arith="no"
+fi
+fi
+fi
+
+echo "lex/yacc for arithmetic $arith"
+