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Diffstat (limited to 'vpp-japi/m4/ax_check_java_home.m4')
| -rw-r--r-- | vpp-japi/m4/ax_check_java_home.m4 | 80 |
1 files changed, 80 insertions, 0 deletions
diff --git a/vpp-japi/m4/ax_check_java_home.m4 b/vpp-japi/m4/ax_check_java_home.m4 new file mode 100644 index 00000000000..cfe8f58928d --- /dev/null +++ b/vpp-japi/m4/ax_check_java_home.m4 @@ -0,0 +1,80 @@ +# =========================================================================== +# http://www.gnu.org/software/autoconf-archive/ax_check_java_home.html +# =========================================================================== +# +# SYNOPSIS +# +# AX_CHECK_JAVA_HOME +# +# DESCRIPTION +# +# Check for Sun Java (JDK / JRE) installation, where the 'java' VM is in. +# If found, set environment variable JAVA_HOME = Java installation home, +# else left JAVA_HOME untouch, which in most case means JAVA_HOME is +# empty. +# +# LICENSE +# +# Copyright (c) 2008 Gleen Salmon <gleensalmon@yahoo.com> +# +# This program is free software; you can redistribute it and/or modify it +# under the terms of the GNU General Public License as published by the +# Free Software Foundation; either version 2 of the License, or (at your +# option) any later version. +# +# This program is distributed in the hope that it will be useful, but +# WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General +# Public License for more details. +# +# You should have received a copy of the GNU General Public License along +# with this program. If not, see <http://www.gnu.org/licenses/>. +# +# As a special exception, the respective Autoconf Macro's copyright owner +# gives unlimited permission to copy, distribute and modify the configure +# scripts that are the output of Autoconf when processing the Macro. You +# need not follow the terms of the GNU General Public License when using +# or distributing such scripts, even though portions of the text of the +# Macro appear in them. The GNU General Public License (GPL) does govern +# all other use of the material that constitutes the Autoconf Macro. +# +# This special exception to the GPL applies to versions of the Autoconf +# Macro released by the Autoconf Archive. When you make and distribute a +# modified version of the Autoconf Macro, you may extend this special +# exception to the GPL to apply to your modified version as well. + +#serial 6 + +AU_ALIAS([AC_CHECK_JAVA_HOME], [AX_CHECK_JAVA_HOME]) + +AC_DEFUN([AX_CHECK_JAVA_HOME], +[AC_MSG_CHECKING([for JAVA_HOME]) +# We used a fake loop so that we can use "break" to exit when the result +# is found. +while true +do + # If the user defined JAVA_HOME, don't touch it. + test "${JAVA_HOME+set}" = set && break + + # On Mac OS X 10.5 and following, run /usr/libexec/java_home to get + # the value of JAVA_HOME to use. + # (http://developer.apple.com/library/mac/#qa/qa2001/qa1170.html). + JAVA_HOME=`/usr/libexec/java_home 2>/dev/null` + test x"$JAVA_HOME" != x && break + + # See if we can find the java executable, and compute from there. + TRY_JAVA_HOME=`ls -dr /usr/java/* 2> /dev/null | head -n 1` + if test x$TRY_JAVA_HOME != x; then + PATH=$PATH:$TRY_JAVA_HOME/bin + fi + AC_PATH_PROG([JAVA_PATH_NAME], [java]) + if test "x$JAVA_PATH_NAME" != x; then + JAVA_HOME=`echo $JAVA_PATH_NAME | sed "s/\(.*\)[[/]]bin[[/]]java.*/\1/"` + break + fi + + AC_MSG_NOTICE([Could not compute JAVA_HOME]) + break +done +AC_MSG_RESULT([$JAVA_HOME]) +]) |