| Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 1 | # =========================================================================== |
| 2 | # http://www.gnu.org/software/autoconf-archive/ax_check_java_home.html |
| 3 | # =========================================================================== |
| 4 | # |
| 5 | # SYNOPSIS |
| 6 | # |
| 7 | # AX_CHECK_JAVA_HOME |
| 8 | # |
| 9 | # DESCRIPTION |
| 10 | # |
| 11 | # Check for Sun Java (JDK / JRE) installation, where the 'java' VM is in. |
| 12 | # If found, set environment variable JAVA_HOME = Java installation home, |
| 13 | # else left JAVA_HOME untouch, which in most case means JAVA_HOME is |
| 14 | # empty. |
| 15 | # |
| 16 | # LICENSE |
| 17 | # |
| 18 | # Copyright (c) 2008 Gleen Salmon <gleensalmon@yahoo.com> |
| 19 | # |
| 20 | # This program is free software; you can redistribute it and/or modify it |
| 21 | # under the terms of the GNU General Public License as published by the |
| 22 | # Free Software Foundation; either version 2 of the License, or (at your |
| 23 | # option) any later version. |
| 24 | # |
| 25 | # This program is distributed in the hope that it will be useful, but |
| 26 | # WITHOUT ANY WARRANTY; without even the implied warranty of |
| 27 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General |
| 28 | # Public License for more details. |
| 29 | # |
| 30 | # You should have received a copy of the GNU General Public License along |
| 31 | # with this program. If not, see <http://www.gnu.org/licenses/>. |
| 32 | # |
| 33 | # As a special exception, the respective Autoconf Macro's copyright owner |
| 34 | # gives unlimited permission to copy, distribute and modify the configure |
| 35 | # scripts that are the output of Autoconf when processing the Macro. You |
| 36 | # need not follow the terms of the GNU General Public License when using |
| 37 | # or distributing such scripts, even though portions of the text of the |
| 38 | # Macro appear in them. The GNU General Public License (GPL) does govern |
| 39 | # all other use of the material that constitutes the Autoconf Macro. |
| 40 | # |
| 41 | # This special exception to the GPL applies to versions of the Autoconf |
| 42 | # Macro released by the Autoconf Archive. When you make and distribute a |
| 43 | # modified version of the Autoconf Macro, you may extend this special |
| 44 | # exception to the GPL to apply to your modified version as well. |
| 45 | |
| 46 | #serial 6 |
| 47 | |
| 48 | AU_ALIAS([AC_CHECK_JAVA_HOME], [AX_CHECK_JAVA_HOME]) |
| 49 | |
| 50 | AC_DEFUN([AX_CHECK_JAVA_HOME], |
| 51 | [AC_MSG_CHECKING([for JAVA_HOME]) |
| 52 | # We used a fake loop so that we can use "break" to exit when the result |
| 53 | # is found. |
| 54 | while true |
| 55 | do |
| 56 | # If the user defined JAVA_HOME, don't touch it. |
| 57 | test "${JAVA_HOME+set}" = set && break |
| 58 | |
| 59 | # On Mac OS X 10.5 and following, run /usr/libexec/java_home to get |
| 60 | # the value of JAVA_HOME to use. |
| 61 | # (http://developer.apple.com/library/mac/#qa/qa2001/qa1170.html). |
| 62 | JAVA_HOME=`/usr/libexec/java_home 2>/dev/null` |
| 63 | test x"$JAVA_HOME" != x && break |
| 64 | |
| 65 | # See if we can find the java executable, and compute from there. |
| 66 | TRY_JAVA_HOME=`ls -dr /usr/java/* 2> /dev/null | head -n 1` |
| 67 | if test x$TRY_JAVA_HOME != x; then |
| 68 | PATH=$PATH:$TRY_JAVA_HOME/bin |
| 69 | fi |
| 70 | AC_PATH_PROG([JAVA_PATH_NAME], [java]) |
| 71 | if test "x$JAVA_PATH_NAME" != x; then |
| 72 | JAVA_HOME=`echo $JAVA_PATH_NAME | sed "s/\(.*\)[[/]]bin[[/]]java.*/\1/"` |
| 73 | break |
| 74 | fi |
| 75 | |
| 76 | AC_MSG_NOTICE([Could not compute JAVA_HOME]) |
| 77 | break |
| 78 | done |
| 79 | AC_MSG_RESULT([$JAVA_HOME]) |
| 80 | ]) |