New module 'javaexec'.

[gnulib.git] / m4 / javaexec.m4

diff --git a/m4/javaexec.m4 b/m4/javaexec.m4
new file mode 100644 (file)
index 0000000..f15c13b
--- /dev/null
+++ b/m4/javaexec.m4
@@ -0,0 +1,80 @@
+# javaexec.m4 serial 2 (gettext-0.13)
+dnl Copyright (C) 2001-2003 Free Software Foundation, Inc.
+dnl This file is free software; the Free Software Foundation
+dnl gives unlimited permission to copy and/or distribute it,
+dnl with or without modifications, as long as this notice is preserved.
+
+# Prerequisites of javaexec.sh.
+# gt_JAVAEXEC or gt_JAVAEXEC(testclass, its-directory)
+# Sets HAVE_JAVAEXEC to nonempty if javaexec.sh will work.
+
+AC_DEFUN([gt_JAVAEXEC],
+[
+  AC_MSG_CHECKING([for Java virtual machine])
+  AC_EGREP_CPP(yes, [
+#if defined _WIN32 || defined __WIN32__ || defined __EMX__ || defined __DJGPP__
+  yes
+#endif
+], CLASSPATH_SEPARATOR=';', CLASSPATH_SEPARATOR=':')
+  HAVE_JAVAEXEC=1
+  if test -n "$JAVA"; then
+    ac_result="$JAVA"
+  else
+    pushdef([AC_MSG_CHECKING],[:])dnl
+    pushdef([AC_CHECKING],[:])dnl
+    pushdef([AC_MSG_RESULT],[:])dnl
+    AC_CHECK_PROG(HAVE_GIJ_IN_PATH, gij, yes)
+    AC_CHECK_PROG(HAVE_JAVA_IN_PATH, java, yes)
+    AC_CHECK_PROG(HAVE_JRE_IN_PATH, jre, yes)
+    AC_CHECK_PROG(HAVE_JVIEW_IN_PATH, jview, yes)
+    popdef([AC_MSG_RESULT])dnl
+    popdef([AC_CHECKING])dnl
+    popdef([AC_MSG_CHECKING])dnl
+    ifelse([$1], , , [
+      save_CLASSPATH="$CLASSPATH"
+      CLASSPATH="$2"${CLASSPATH+"$CLASSPATH_SEPARATOR$CLASSPATH"}
+      ])
+    export CLASSPATH
+    if test -n "$HAVE_GIJ_IN_PATH" \
+       && gij --version >/dev/null 2>/dev/null \
+       ifelse([$1], , , [&& gij $1 >/dev/null 2>/dev/null]); then
+      HAVE_GIJ=1
+      ac_result="gij"
+    else
+      if test -n "$HAVE_JAVA_IN_PATH" \
+         && java -version >/dev/null 2>/dev/null \
+         ifelse([$1], , , [&& java $1 >/dev/null 2>/dev/null]); then
+        HAVE_JAVA=1
+        ac_result="java"
+      else
+        if test -n "$HAVE_JRE_IN_PATH" \
+           && (jre >/dev/null 2>/dev/null || test $? = 1) \
+           ifelse([$1], , , [&& jre $1 >/dev/null 2>/dev/null]); then
+          HAVE_JRE=1
+          ac_result="jre"
+        else
+          if test -n "$HAVE_JVIEW_IN_PATH" \
+             && (jview -? >/dev/null 2>/dev/null || test $? = 1) \
+             ifelse([$1], , , [&& jview $1 >/dev/null 2>/dev/null]); then
+            HAVE_JVIEW=1
+            ac_result="jview"
+          else
+            HAVE_JAVAEXEC=
+            ac_result="no"
+          fi
+        fi
+      fi
+    fi
+    ifelse([$1], , , [
+      CLASSPATH="$save_CLASSPATH"
+    ])
+  fi
+  AC_MSG_RESULT([$ac_result])
+  AC_SUBST(JAVA)
+  AC_SUBST(CLASSPATH)
+  AC_SUBST(CLASSPATH_SEPARATOR)
+  AC_SUBST(HAVE_GIJ)
+  AC_SUBST(HAVE_JAVA)
+  AC_SUBST(HAVE_JRE)
+  AC_SUBST(HAVE_JVIEW)
+])