dnl @synopsis AC_CHECK_CLASS
dnl
dnl AC_CHECK_CLASS tests the existence of a given Java class, either in
dnl a jar or in a '.class' file.
dnl
dnl *Warning*: its success or failure can depend on a proper setting of the
dnl CLASSPATH env. variable.
dnl
dnl Note: This is part of the set of autoconf M4 macros for Java programs.
dnl It is VERY IMPORTANT that you download the whole set, some
dnl macros depend on other. Unfortunately, the autoconf archive does not
dnl support the concept of set of macros, so I had to break it for
dnl submission.
dnl The general documentation, as well as the sample configure.in, is
dnl included in the AC_PROG_JAVA macro.
dnl
dnl @author Stephane Bortzmeyer <bortzmeyer@pasteur.fr>
dnl @version $Id$
dnl
AC_DEFUN([AC_CHECK_CLASS],[
AC_REQUIRE([AC_PROG_JAVA])
ac_var_name=`echo $1 | sed 's/\./_/g'`
dnl Normaly I'd use a AC_CACHE_CHECK here but since the variable name is
dnl dynamic I need an extra level of extraction
AC_MSG_CHECKING([for $1 class])
AC_CACHE_VAL(ac_cv_class_$ac_var_name, [
if test x$ac_cv_prog_uudecode_base64 = xyes; then
dnl /**
dnl  * Test.java: used to test dynamicaly if a class exists.
dnl  */
dnl public class Test
dnl {
dnl
dnl public static void
dnl main( String[] argv )
dnl {
dnl     Class lib;
dnl     if (argv.length < 1)
dnl      {
dnl             System.err.println ("Missing argument");
dnl             System.exit (77);
dnl      }
dnl     try
dnl      {
dnl             lib = Class.forName (argv[0]);
dnl      }
dnl     catch (ClassNotFoundException e)
dnl      {
dnl             System.exit (1);
dnl      }
dnl     lib = null;
dnl     System.exit (0);
dnl }
dnl
dnl }
cat << \EOF > Test.uue
begin-base64 644 Test.class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====
EOF
                if uudecode$EXEEXT Test.uue; then
                        :
                else
                        echo "configure: __oline__: uudecode had trouble decoding base 64 file 'Test.uue'" >&AC_FD_CC
                        echo "configure: failed file was:" >&AC_FD_CC
                        cat Test.uue >&AC_FD_CC
                        ac_cv_prog_uudecode_base64=no
                fi
        rm -f Test.uue
        if AC_TRY_COMMAND($JAVA $JAVAFLAGS Test $1) >/dev/null 2>&1; then
                eval "ac_cv_class_$ac_var_name=yes"
        else
                eval "ac_cv_class_$ac_var_name=no"
        fi
        rm -f Test.class
else
        AC_TRY_COMPILE_JAVA([$1], , [eval "ac_cv_class_$ac_var_name=yes"],
                [eval "ac_cv_class_$ac_var_name=no"])
fi
eval "ac_var_val=$`eval echo ac_cv_class_$ac_var_name`"
eval "HAVE_$ac_var_name=$`echo ac_cv_class_$ac_var_val`"
HAVE_LAST_CLASS=$ac_var_val
if test x$ac_var_val = xyes; then
        ifelse([$2], , :, [$2])
else
        ifelse([$3], , :, [$3])
fi
])
dnl for some reason the above statment didn't fall though here?
dnl do scripts have variable scoping?
eval "ac_var_val=$`eval echo ac_cv_class_$ac_var_name`"
AC_MSG_RESULT($ac_var_val)
])
dnl @synopsis AC_CHECK_CLASSPATH
dnl
dnl AC_CHECK_CLASSPATH just displays the CLASSPATH, for the edification
dnl of the user.
dnl
dnl Note: This is part of the set of autoconf M4 macros for Java programs.
dnl It is VERY IMPORTANT that you download the whole set, some
dnl macros depend on other. Unfortunately, the autoconf archive does not
dnl support the concept of set of macros, so I had to break it for
dnl submission.
dnl The general documentation, as well as the sample configure.in, is
dnl included in the AC_PROG_JAVA macro.
dnl
dnl @author Stephane Bortzmeyer <bortzmeyer@pasteur.fr>
dnl @version $Id$
dnl
AC_DEFUN([AC_CHECK_CLASSPATH],[
if test "x$CLASSPATH" = x; then
        echo "You have no CLASSPATH, I hope it is good"
else
        echo "You have CLASSPATH $CLASSPATH, hope it is correct"
fi
])
dnl @synopsis AC_CHECK_RQRD_CLASS
dnl
dnl AC_CHECK_RQRD_CLASS tests the existence of a given Java class, either in
dnl a jar or in a '.class' file and fails if it doesn't exist.
dnl Its success or failure can depend on a proper setting of the
dnl CLASSPATH env. variable.
dnl
dnl Note: This is part of the set of autoconf M4 macros for Java programs.
dnl It is VERY IMPORTANT that you download the whole set, some
dnl macros depend on other. Unfortunately, the autoconf archive does not
dnl support the concept of set of macros, so I had to break it for
dnl submission.
dnl The general documentation, as well as the sample configure.in, is
dnl included in the AC_PROG_JAVA macro.
dnl
dnl @author Stephane Bortzmeyer <bortzmeyer@pasteur.fr>
dnl @version $Id$
dnl

AC_DEFUN([AC_CHECK_RQRD_CLASS],[
CLASS=`echo $1|sed 's/\./_/g'`
AC_CHECK_CLASS($1)
if test "$HAVE_LAST_CLASS" = "no"; then
        AC_MSG_ERROR([Required class $1 missing, exiting.])
fi
])
dnl @synopsis AC_JAVA_OPTIONS
dnl
dnl AC_JAVA_OPTIONS adds configure command line options used for Java m4
dnl macros. This Macro is optional.
dnl
dnl Note: This is part of the set of autoconf M4 macros for Java programs.
dnl It is VERY IMPORTANT that you download the whole set, some
dnl macros depend on other. Unfortunately, the autoconf archive does not
dnl support the concept of set of macros, so I had to break it for
dnl submission.
dnl The general documentation, as well as the sample configure.in, is
dnl included in the AC_PROG_JAVA macro.
dnl
dnl @author Devin Weaver <ktohg@tritarget.com>
dnl @version $Id$
dnl
AC_DEFUN([AC_JAVA_OPTIONS],[
AC_ARG_WITH(java-prefix,
                        [  --with-java-prefix=PFX  prefix where Java runtime is installed (optional)])
AC_ARG_WITH(javac-flags,
                        [  --with-javac-flags=FLAGS flags to pass to the Java compiler (optional)])
AC_ARG_WITH(java-flags,
                        [  --with-java-flags=FLAGS flags to pass to the Java VM (optional)])
JAVAPREFIX=$with_java_prefix
JAVACFLAGS=$with_javac_flags
JAVAFLAGS=$with_java_flags
AC_SUBST(JAVAPREFIX)dnl
AC_SUBST(JAVACFLAGS)dnl
AC_SUBST(JAVAFLAGS)dnl
AC_SUBST(JAVA)dnl
AC_SUBST(JAVAC)dnl
])
dnl @synopsis AC_PROG_JAVA
dnl
dnl Here is a summary of the main macros:
dnl
dnl AC_PROG_JAVAC: finds a Java compiler.
dnl
dnl AC_PROG_JAVA: finds a Java virtual machine.
dnl
dnl AC_CHECK_CLASS: finds if we have the given class (beware of CLASSPATH!).
dnl
dnl AC_CHECK_RQRD_CLASS: finds if we have the given class and stops otherwise.
dnl
dnl AC_TRY_COMPILE_JAVA: attempt to compile user given source.
dnl
dnl AC_TRY_RUN_JAVA: attempt to compile and run user given source.
dnl
dnl AC_JAVA_OPTIONS: adds Java configure options.
dnl
dnl AC_PROG_JAVA tests an existing Java virtual machine. It uses the
dnl environment variable JAVA then tests in sequence various common Java
dnl virtual machines. For political reasons, it starts with the free ones.
dnl You *must* call [AC_PROG_JAVAC] before.
dnl
dnl If you want to force a specific VM:
dnl
dnl - at the configure.in level, set JAVA=yourvm before calling AC_PROG_JAVA
dnl   (but after AC_INIT)
dnl
dnl - at the configure level, setenv JAVA
dnl
dnl You can use the JAVA variable in your Makefile.in, with @JAVA@.
dnl
dnl *Warning*: its success or failure can depend on a proper setting of the
dnl CLASSPATH env. variable.
dnl
dnl TODO: allow to exclude virtual machines (rationale: most Java programs
dnl cannot run with some VM like kaffe).
dnl
dnl Note: This is part of the set of autoconf M4 macros for Java programs.
dnl It is VERY IMPORTANT that you download the whole set, some
dnl macros depend on other. Unfortunately, the autoconf archive does not
dnl support the concept of set of macros, so I had to break it for
dnl submission.
dnl
dnl A Web page, with a link to the latest CVS snapshot is at
dnl <http://www.internatif.org/bortzmeyer/autoconf-Java/>.
dnl
dnl This is a sample configure.in
dnl Process this file with autoconf to produce a configure script.
dnl
dnl    AC_INIT(UnTag.java)
dnl
dnl    dnl Checks for programs.
dnl    AC_CHECK_CLASSPATH
dnl    AC_PROG_JAVAC
dnl    AC_PROG_JAVA
dnl
dnl    dnl Checks for classes
dnl    AC_CHECK_RQRD_CLASS(org.xml.sax.Parser)
dnl    AC_CHECK_RQRD_CLASS(com.jclark.xml.sax.Driver)
dnl
dnl    AC_OUTPUT(Makefile)
dnl
dnl @author Stephane Bortzmeyer <bortzmeyer@pasteur.fr>
dnl @version $Id$
dnl
AC_DEFUN([AC_PROG_JAVA],[
AC_REQUIRE([AC_EXEEXT])dnl
if test x$JAVAPREFIX = x; then
        test x$JAVA = x && AC_CHECK_PROGS(JAVA, kaffe$EXEEXT java$EXEEXT)
else
        test x$JAVA = x && AC_CHECK_PROGS(JAVA, kaffe$EXEEXT java$EXEEXT, $JAVAPREFIX)
fi
test x$JAVA = x && AC_MSG_ERROR([no acceptable Java virtual machine found in \$PATH])
AC_PROG_JAVA_WORKS
AC_PROVIDE([$0])dnl
])
dnl @synopsis AC_PROG_JAVA_WORKS
dnl
dnl Internal use ONLY.
dnl
dnl Note: This is part of the set of autoconf M4 macros for Java programs.
dnl It is VERY IMPORTANT that you download the whole set, some
dnl macros depend on other. Unfortunately, the autoconf archive does not
dnl support the concept of set of macros, so I had to break it for
dnl submission.
dnl The general documentation, as well as the sample configure.in, is
dnl included in the AC_PROG_JAVA macro.
dnl
dnl @author Stephane Bortzmeyer <bortzmeyer@pasteur.fr>
dnl @version $Id$
dnl
AC_DEFUN([AC_PROG_JAVA_WORKS], [
AC_CHECK_PROG(uudecode, uudecode$EXEEXT, yes)
if test x$uudecode = xyes; then
AC_CACHE_CHECK([if uudecode can decode base 64 file], ac_cv_prog_uudecode_base64, [
dnl /**
dnl  * Test.java: used to test if java compiler works.
dnl  */
dnl public class Test
dnl {
dnl
dnl public static void
dnl main( String[] argv )
dnl {
dnl     System.exit (0);
dnl }
dnl
dnl }
cat << \EOF > Test.uue
begin-base64 644 Test.class
yv66vgADAC0AFQcAAgEABFRlc3QHAAQBABBqYXZhL2xhbmcvT2JqZWN0AQAE
bWFpbgEAFihbTGphdmEvbGFuZy9TdHJpbmc7KVYBAARDb2RlAQAPTGluZU51
bWJlclRhYmxlDAAKAAsBAARleGl0AQAEKEkpVgoADQAJBwAOAQAQamF2YS9s
YW5nL1N5c3RlbQEABjxpbml0PgEAAygpVgwADwAQCgADABEBAApTb3VyY2VG
aWxlAQAJVGVzdC5qYXZhACEAAQADAAAAAAACAAkABQAGAAEABwAAACEAAQAB
AAAABQO4AAyxAAAAAQAIAAAACgACAAAACgAEAAsAAQAPABAAAQAHAAAAIQAB
AAEAAAAFKrcAErEAAAABAAgAAAAKAAIAAAAEAAQABAABABMAAAACABQ=
====
EOF
if uudecode$EXEEXT Test.uue; then
        ac_cv_prog_uudecode_base64=yes
else
        echo "configure: __oline__: uudecode had trouble decoding base 64 file 'Test.uue'" >&AC_FD_CC
        echo "configure: failed file was:" >&AC_FD_CC
        cat Test.uue >&AC_FD_CC
        ac_cv_prog_uudecode_base64=no
fi
rm -f Test.uue])
fi
if test x$ac_cv_prog_uudecode_base64 != xyes; then
        rm -f Test.class
        AC_MSG_WARN([I have to compile Test.class from scratch])
        if test x$ac_cv_prog_javac_works = xno; then
                AC_MSG_ERROR([Cannot compile java source. $JAVAC does not work properly])
        fi
        if test x$ac_cv_prog_javac_works = x; then
                AC_PROG_JAVAC
        fi
fi
AC_CACHE_CHECK(if $JAVA works, ac_cv_prog_java_works, [
JAVA_TEST=Test.java
CLASS_TEST=Test.class
TEST=Test
changequote(, )dnl
cat << \EOF > $JAVA_TEST
/* [#]line __oline__ "configure" */
public class Test {
public static void main (String args[]) {
        System.exit (0);
} }
EOF
changequote([, ])dnl
if test x$ac_cv_prog_uudecode_base64 != xyes; then
        if AC_TRY_COMMAND($JAVAC $JAVACFLAGS $JAVA_TEST) && test -s $CLASS_TEST; then
                :
        else
          echo "configure: failed program was:" >&AC_FD_CC
          cat $JAVA_TEST >&AC_FD_CC
          AC_MSG_ERROR(The Java compiler $JAVAC failed (see config.log, check the CLASSPATH?))
        fi
fi
if AC_TRY_COMMAND($JAVA $JAVAFLAGS $TEST) >/dev/null 2>&1; then
  ac_cv_prog_java_works=yes
else
  echo "configure: failed program was:" >&AC_FD_CC
  cat $JAVA_TEST >&AC_FD_CC
  AC_MSG_ERROR(The Java VM $JAVA failed (see config.log, check the CLASSPATH?))
fi
rm -fr $JAVA_TEST $CLASS_TEST Test.uue
])
AC_PROVIDE([$0])dnl
]
)
dnl @synopsis AC_PROG_JAVAC
dnl
dnl AC_PROG_JAVAC tests an existing Java compiler. It uses the environment
dnl variable JAVAC then tests in sequence various common Java compilers. For
dnl political reasons, it starts with the free ones.
dnl
dnl If you want to force a specific compiler:
dnl
dnl - at the configure.in level, set JAVAC=yourcompiler before calling
dnl AC_PROG_JAVAC
dnl
dnl - at the configure level, setenv JAVAC
dnl
dnl You can use the JAVAC variable in your Makefile.in, with @JAVAC@.
dnl
dnl *Warning*: its success or failure can depend on a proper setting of the
dnl CLASSPATH env. variable.
dnl
dnl TODO: allow to exclude compilers (rationale: most Java programs cannot compile
dnl with some compilers like guavac).
dnl
dnl Note: This is part of the set of autoconf M4 macros for Java programs.
dnl It is VERY IMPORTANT that you download the whole set, some
dnl macros depend on other. Unfortunately, the autoconf archive does not
dnl support the concept of set of macros, so I had to break it for
dnl submission.
dnl The general documentation, as well as the sample configure.in, is
dnl included in the AC_PROG_JAVA macro.
dnl
dnl @author Stephane Bortzmeyer <bortzmeyer@pasteur.fr>
dnl @version $Id$
dnl
AC_DEFUN([AC_PROG_JAVAC],[
AC_REQUIRE([AC_EXEEXT])dnl
if test "x$JAVAPREFIX" = x; then
        test "x$JAVAC" = x && AC_CHECK_PROGS(JAVAC, "gcj$EXEEXT -C" guavac$EXEEXT jikes$EXEEXT javac$EXEEXT)
else
        test "x$JAVAC" = x && AC_CHECK_PROGS(JAVAC, "gcj$EXEEXT -C" guavac$EXEEXT jikes$EXEEXT javac$EXEEXT, $JAVAPREFIX)
fi
test "x$JAVAC" = x && AC_MSG_ERROR([no acceptable Java compiler found in \$PATH])
AC_PROG_JAVAC_WORKS
AC_PROVIDE([$0])dnl
])
dnl @synopsis AC_PROG_JAVAC_WORKS
dnl
dnl Internal use ONLY.
dnl
dnl Note: This is part of the set of autoconf M4 macros for Java programs.
dnl It is VERY IMPORTANT that you download the whole set, some
dnl macros depend on other. Unfortunately, the autoconf archive does not
dnl support the concept of set of macros, so I had to break it for
dnl submission.
dnl The general documentation, as well as the sample configure.in, is
dnl included in the AC_PROG_JAVA macro.
dnl
dnl @author Stephane Bortzmeyer <bortzmeyer@pasteur.fr>
dnl @version $Id$
dnl
AC_DEFUN([AC_PROG_JAVAC_WORKS],[
AC_CACHE_CHECK([if $JAVAC works], ac_cv_prog_javac_works, [
JAVA_TEST=Test.java
CLASS_TEST=Test.class
cat << \EOF > $JAVA_TEST
/* [#]line __oline__ "configure" */
public class Test {
}
EOF
if AC_TRY_COMMAND($JAVAC $JAVACFLAGS $JAVA_TEST) >/dev/null 2>&1; then
  ac_cv_prog_javac_works=yes
else
  AC_MSG_ERROR([The Java compiler $JAVAC failed (see config.log, check the CLASSPATH?)])
  echo "configure: failed program was:" >&AC_FD_CC
  cat $JAVA_TEST >&AC_FD_CC
fi
rm -f $JAVA_TEST $CLASS_TEST
])
AC_PROVIDE([$0])dnl
])
dnl @synopsis AC_TRY_COMPILE_JAVA
dnl
dnl AC_TRY_COMPILE_JAVA attempt to compile user given source.
dnl
dnl *Warning*: its success or failure can depend on a proper setting of the
dnl CLASSPATH env. variable.
dnl
dnl Note: This is part of the set of autoconf M4 macros for Java programs.
dnl It is VERY IMPORTANT that you download the whole set, some
dnl macros depend on other. Unfortunately, the autoconf archive does not
dnl support the concept of set of macros, so I had to break it for
dnl submission.
dnl The general documentation, as well as the sample configure.in, is
dnl included in the AC_PROG_JAVA macro.
dnl
dnl @author Devin Weaver <ktohg@tritarget.com>
dnl @version $Id$
dnl
AC_DEFUN([AC_TRY_COMPILE_JAVA],[
AC_REQUIRE([AC_PROG_JAVAC])dnl
cat << \EOF > Test.java
/* [#]line __oline__ "configure" */
ifelse([$1], , , [import $1;])
public class Test {
[$2]
}
EOF
if AC_TRY_COMMAND($JAVAC $JAVACFLAGS Test.java) && test -s Test.class
then
dnl Don't remove the temporary files here, so they can be examined.
  ifelse([$3], , :, [$3])
else
  echo "configure: failed program was:" >&AC_FD_CC
  cat Test.java >&AC_FD_CC
ifelse([$4], , , [  rm -fr Test*
  $4
])dnl
fi
rm -fr Test*])
dnl @synopsis AC_TRY_RUN_JAVA
dnl
dnl AC_TRY_RUN_JAVA attempt to compile and run user given source.
dnl
dnl *Warning*: its success or failure can depend on a proper setting of the
dnl CLASSPATH env. variable.
dnl
dnl Note: This is part of the set of autoconf M4 macros for Java programs.
dnl It is VERY IMPORTANT that you download the whole set, some
dnl macros depend on other. Unfortunately, the autoconf archive does not
dnl support the concept of set of macros, so I had to break it for
dnl submission.
dnl The general documentation, as well as the sample configure.in, is
dnl included in the AC_PROG_JAVA macro.
dnl
dnl @author Devin Weaver <ktohg@tritarget.com>
dnl @version $Id$
dnl
AC_DEFUN([AC_TRY_RUN_JAVA],[
AC_REQUIRE([AC_PROG_JAVAC])dnl
AC_REQUIRE([AC_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:" >&AC_FD_CC
  cat Test.java >&AC_FD_CC
ifelse([$4], , , [  rm -fr Test*
  $4
])dnl
fi
rm -fr Test*])