1 files changed, 215 insertions, 0 deletions
diff --git a/build/ac-macros/java.m4 b/build/ac-macros/java.m4
new file mode 100644
index 0000000..9ef4015
--- /dev/null
+++ b/build/ac-macros/java.m4
@@ -0,0 +1,215 @@
+dnl ===================================================================
+dnl   Licensed to the Apache Software Foundation (ASF) under one
+dnl   or more contributor license agreements.  See the NOTICE file
+dnl   distributed with this work for additional information
+dnl   regarding copyright ownership.  The ASF licenses this file
+dnl   to you under the Apache License, Version 2.0 (the
+dnl   "License"); you may not use this file except in compliance
+dnl   with the License.  You may obtain a copy of the License at
+dnl
+dnl     http://www.apache.org/licenses/LICENSE-2.0
+dnl
+dnl   Unless required by applicable law or agreed to in writing,
+dnl   software distributed under the License is distributed on an
+dnl   "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+dnl   KIND, either express or implied.  See the License for the
+dnl   specific language governing permissions and limitations
+dnl   under the License.
+dnl ===================================================================
+dnl
+dnl java.m4: Locates the JDK and its include files and libraries.
+dnl
+
+AC_DEFUN(SVN_CHECK_JDK,
+[
+  JAVA_OLDEST_WORKING_VER="$1"
+  AC_ARG_WITH(jdk,
+              AS_HELP_STRING([--with-jdk=PATH],
+                             [Try to use 'PATH/include' to find the JNI
+                              headers.  If PATH is not specified, look 
+                              for a Java Development Kit at JAVA_HOME.]),
+  [
+    case "$withval" in
+      "no")
+        JDK_SUITABLE=no
+      ;;
+      "yes")
+        SVN_FIND_JDK(check, $JAVA_OLDEST_WORKING_VER)
+      ;;
+      *)
+        SVN_FIND_JDK($withval, $JAVA_OLDEST_WORKING_VER)
+      ;;
+    esac
+  ],
+  [
+    SVN_FIND_JDK(check, $JAVA_OLDEST_WORKING_VER)
+  ])
+])
+
+AC_DEFUN(SVN_FIND_JDK,
+[
+  where=$1
+  JAVA_OLDEST_WORKING_VER="$2"
+
+  JDK=none
+  JAVA_BIN=none
+  JAVADOC=none
+  JAVAC=none
+  JAVAH=none
+  JAR=none
+  JNI_INCLUDES=none
+
+  JDK_SUITABLE=no
+  AC_MSG_CHECKING([for JDK])
+  if test $where = check; then
+    dnl Prefer /Library/Java/Home first to try to be nice on Darwin.
+    dnl We'll correct later if we get caught in the tangled web of JAVA_HOME.
+    if test -x "$JAVA_HOME/bin/java"; then
+      JDK="$JAVA_HOME"
+    elif test -x "/Library/Java/Home/bin/java"; then
+      JDK="/Library/Java/Home"
+    elif test -x "/usr/bin/java"; then
+      JDK="/usr"
+    elif test -x "/usr/local/bin/java"; then
+      JDK="/usr/local"
+    fi
+  else
+    JDK=$where
+  fi
+
+  dnl Correct for Darwin's odd JVM layout.  Ideally, we should use realpath,
+  dnl but Darwin doesn't have that utility.  /usr/bin/java is a symlink into
+  dnl /System/Library/Frameworks/JavaVM.framework/Versions/CurrentJDK/Commands
+  dnl See http://developer.apple.com/qa/qa2001/qa1170.html
+  os_arch="`uname`"
+  if test "$os_arch" = "Darwin"; then
+    OSX_VER=`/usr/bin/sw_vers | grep ProductVersion | cut -f2 | cut -d"." -f1,2`
+
+    if test "$OSX_VER" = "10.4"; then
+      dnl For OS X 10.4, the SDK version is 10.4u instead of 10.4.
+      OSX_VER="10.4u"
+    fi
+
+    OSX_SYS_JAVA_FRAMEWORK="/System/Library/Frameworks/JavaVM.framework"
+    OSX_SDK_JAVA_FRAMEWORK="/Developer/SDKs/MacOSX$OSX_VER.sdk/System/Library"
+    OSX_SDK_JAVA_FRAMEWORK="$OSX_SDK_JAVA_FRAMEWORK/Frameworks/JavaVM.framework"
+  fi
+
+  if test "$os_arch" = "Darwin" && test "$JDK" = "/usr" &&
+     test -d "/Library/Java/Home"; then
+    JDK="/Library/Java/Home"
+  fi
+
+  if test "$os_arch" = "Darwin" && test "$JDK" = "/Library/Java/Home"; then
+    JRE_LIB_DIR="$OSX_SYS_JAVA_FRAMEWORK/Classes"
+  else
+    JRE_LIB_DIR="$JDK/jre/lib"
+  fi
+
+  if test -f "$JDK/include/jni.h"; then
+    dnl This *must* be fully expanded, or we'll have problems later in find.
+    JNI_INCLUDEDIR="$JDK/include"
+    JDK_SUITABLE=yes
+  elif test "$os_arch" = "Darwin" && test -e "$JDK/Headers/jni.h"; then
+    dnl Search the Headers directory in the JDK
+    JNI_INCLUDEDIR="$JDK/Headers"
+    JDK_SUITABLE=yes
+  elif test "$os_arch" = "Darwin" &&
+       test -e "$OSX_SYS_JAVA_FRAMEWORK/Headers/jni.h"; then
+    dnl Search the System framework's Headers directory
+    JNI_INCLUDEDIR="$OSX_SYS_JAVA_FRAMEWORK/Headers"
+    JDK_SUITABLE=yes
+  elif test "$os_arch" = "Darwin" &&
+       test -e "$OSX_SDK_JAVA_FRAMEWORK/Headers/jni.h"; then
+    dnl Search the SDK's System framework's Headers directory
+    JNI_INCLUDEDIR="$OSX_SDK_JAVA_FRAMEWORK/Headers"
+    JDK_SUITABLE=yes
+  else
+    JDK_SUITABLE=no
+  fi
+  if test "$JDK_SUITABLE" = "yes"; then
+    AC_MSG_RESULT([$JNI_INCLUDEDIR/jni.h])
+  else
+    AC_MSG_RESULT([no])
+    if test "$where" != "check"; then
+      AC_MSG_WARN([no JNI header files found.])
+      if test "$os_arch" = "Darwin"; then
+        AC_MSG_WARN([You may need to install the latest Java Development package from http://connect.apple.com/.  Apple no longer includes the JNI header files by default on Java updates.])
+      fi
+    fi
+  fi
+
+  if test "$JDK_SUITABLE" = "yes"; then
+    JAVA_BIN='$(JDK)/bin'
+
+    JAVA="$JAVA_BIN/java"
+    JAVAC="$JAVA_BIN/javac"
+    JAVAH="$JAVA_BIN/javah"
+    JAVADOC="$JAVA_BIN/javadoc"
+    JAR="$JAVA_BIN/jar"
+
+    dnl Prefer Jikes (for speed) if available.
+    jikes_options="/usr/local/bin/jikes /usr/bin/jikes"
+    AC_ARG_WITH(jikes,
+                AS_HELP_STRING([--with-jikes=PATH],
+                               [Specify the path to a jikes binary to use
+                                it as your Java compiler.  The default is to
+                                look for jikes (PATH optional).  This behavior
+                                can be switched off by supplying 'no'.]),
+    [
+        if test "$withval" != "no" && test "$withval" != "yes"; then
+          dnl Assume a path was provided.
+          jikes_options="$withval $jikes_options"
+        fi
+        requested_jikes="$withval"  # will be 'yes' if path unspecified
+    ])
+    if test "$requested_jikes" != "no"; then
+      dnl Look for a usable jikes binary.
+      for jikes in $jikes_options; do
+        if test -z "$jikes_found" && test -x "$jikes"; then
+          jikes_found="yes"
+          JAVAC="$jikes"
+          JAVA_CLASSPATH="$JRE_LIB_DIR"
+          for jar in $JRE_LIB_DIR/*.jar; do
+            JAVA_CLASSPATH="$JAVA_CLASSPATH:$jar"
+          done
+        fi
+      done
+    fi
+    if test -n "$requested_jikes" && test "$requested_jikes" != "no"; then
+      dnl Jikes was explicitly requested.  Verify that it was provided.
+      if test -z "$jikes_found"; then
+        AC_MSG_ERROR([Could not find a usable version of Jikes])
+      elif test -n "$jikes_found" && test "$requested_jikes" != "yes" &&
+           test "$JAVAC" != "$requested_jikes"; then
+        AC_MSG_WARN([--with-jikes PATH was invalid, substitute found])
+      fi
+    fi
+
+    dnl Add javac flags.
+    # The release for "-source" could actually be greater than that
+    # of "-target", if we want to cross-compile for lesser JVMs.
+    if test -z "$JAVAC_FLAGS"; then
+      JAVAC_FLAGS="-target $JAVA_OLDEST_WORKING_VER -source 1.5"
+      if test "$enable_debugging" = "yes"; then
+        JAVAC_FLAGS="-g -Xlint:unchecked $JAVAC_FLAGS"
+      fi
+    fi
+
+    JNI_INCLUDES="-I$JNI_INCLUDEDIR"
+    list="`find "$JNI_INCLUDEDIR" -type d -print`"
+    for dir in $list; do
+      JNI_INCLUDES="$JNI_INCLUDES -I$dir"
+    done
+  fi
+
+  dnl We use JDK in the Makefile
+  AC_SUBST(JDK)
+  AC_SUBST(JAVA)
+  AC_SUBST(JAVAC)
+  AC_SUBST(JAVAC_FLAGS)
+  AC_SUBST(JAVADOC)
+  AC_SUBST(JAVAH)
+  AC_SUBST(JAR)
+  AC_SUBST(JNI_INCLUDES)
+])