Port: cleanup and portability fix to configure.ac

[lttng-tools.git] / m4 / ax_try_run_java.m4

diff --git a/m4/ax_try_run_java.m4 b/m4/ax_try_run_java.m4
new file mode 100644 (file)
index 0000000..c680f03
--- /dev/null
+++ b/m4/ax_try_run_java.m4
@@ -0,0 +1,56 @@
+# ===========================================================================
+#      http://www.gnu.org/software/autoconf-archive/ax_try_run_java.html
+# ===========================================================================
+#
+# SYNOPSIS
+#
+#   AX_TRY_RUN_JAVA
+#
+# DESCRIPTION
+#
+#   AX_TRY_RUN_JAVA attempt to compile and run user given source.
+#
+#   *Warning*: its success or failure can depend on a proper setting of the
+#   CLASSPATH env. variable.
+#
+#   Note: This is part of the set of autoconf M4 macros for Java programs.
+#   It is VERY IMPORTANT that you download the whole set, some macros depend
+#   on other. Unfortunately, the autoconf archive does not support the
+#   concept of set of macros, so I had to break it for submission. The
+#   general documentation, as well as the sample configure.in, is included
+#   in the AX_PROG_JAVA macro.
+#
+# LICENSE
+#
+#   Copyright (c) 2008 Devin Weaver <ktohg@tritarget.com>
+#
+#   Copying and distribution of this file, with or without modification, are
+#   permitted in any medium without royalty provided the copyright notice
+#   and this notice are preserved. This file is offered as-is, without any
+#   warranty.
+
+#serial 2
+
+AU_ALIAS([AC_TRY_RUN_JAVA], [AX_TRY_RUN_JAVA])
+AC_DEFUN([AX_TRY_RUN_JAVA],[
+AC_REQUIRE([AX_PROG_JAVAC])dnl
+AC_REQUIRE([AX_PROG_JAVA])dnl
+cat << \EOF > Test.java
+/* [#]line __oline__ "configure" */
+ifelse([$1], , , [include $1;])
+public class Test {
+[$2]
+}
+EOF
+if AC_TRY_COMMAND($JAVAC $JAVACFLAGS Test.java) && test -s Test.class && ($JAVA $JAVAFLAGS Test; exit) 2>/dev/null
+then
+dnl Don't remove the temporary files here, so they can be examined.
+  ifelse([$3], , :, [$3])
+else
+  echo "configure: failed program was:" >&AS_MESSAGE_LOG_FD
+  cat Test.java >&AS_MESSAGE_LOG_FD
+ifelse([$4], , , [  rm -fr Test.java Test.class
+  $4
+])dnl
+fi
+rm -fr Test.java Test.class])