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[Libguestfs] [PATCH 01/16] configure: Move language binding detection to separate files.



The extra files don't have to be added to EXTRA_DIST, as it appears
that autotools already knows that it has to add them.
---
 configure.ac          | 560 ++------------------------------------------------
 m4/guestfs_erlang.m4  |  35 ++++
 m4/guestfs_gobject.m4 |  68 ++++++
 m4/guestfs_golang.m4  |  44 ++++
 m4/guestfs_haskell.m4 |  28 +++
 m4/guestfs_java.m4    | 174 ++++++++++++++++
 m4/guestfs_lua.m4     |  47 +++++
 m4/guestfs_ocaml.m4   | 104 ++++++++++
 m4/guestfs_perl.m4    |  41 ++++
 m4/guestfs_php.m4     |  29 +++
 m4/guestfs_python.m4  | 104 ++++++++++
 m4/guestfs_ruby.m4    |  51 +++++
 12 files changed, 737 insertions(+), 548 deletions(-)
 create mode 100644 m4/guestfs_erlang.m4
 create mode 100644 m4/guestfs_gobject.m4
 create mode 100644 m4/guestfs_golang.m4
 create mode 100644 m4/guestfs_haskell.m4
 create mode 100644 m4/guestfs_java.m4
 create mode 100644 m4/guestfs_lua.m4
 create mode 100644 m4/guestfs_ocaml.m4
 create mode 100644 m4/guestfs_perl.m4
 create mode 100644 m4/guestfs_php.m4
 create mode 100644 m4/guestfs_python.m4
 create mode 100644 m4/guestfs_ruby.m4

diff --git a/configure.ac b/configure.ac
index 637f2f1..5a3ba96 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1081,502 +1081,18 @@ AS_IF([test "x$VALGRIND" != "xno"],[
 AC_SUBST([VG])
 AM_SUBST_NOTMAKE([VG])
 
-dnl Check for OCaml (optional, for OCaml bindings and OCaml tools).
-OCAMLC=no
-OCAMLFIND=no
-AC_ARG_ENABLE([ocaml],
-    AS_HELP_STRING([--disable-ocaml], [disable OCaml language bindings]),
-    [],
-    [enable_ocaml=yes])
-AS_IF([test "x$enable_ocaml" != "xno"],[
-    dnl OCAMLC and OCAMLFIND have to be unset first, otherwise
-    dnl AC_CHECK_TOOL (inside AC_PROG_OCAML) will not look.
-    OCAMLC=
-    OCAMLFIND=
-    AC_PROG_OCAML
-    AC_PROG_FINDLIB
-
-    dnl OCaml >= 3.11 is required.
-    AC_MSG_CHECKING([if OCaml version >= 3.11])
-    ocaml_major="`echo $OCAMLVERSION | $AWK -F. '{print $1}'`"
-    ocaml_minor="`echo $OCAMLVERSION | $AWK -F. '{print $2}'`"
-    AS_IF([test "$ocaml_major" -ge 4 || ( test "$ocaml_major" -eq 3 && test "$ocaml_minor" -ge 11 )],[
-        AC_MSG_RESULT([yes])
-    ],[
-        AC_MSG_RESULT([no])
-        AC_MSG_FAILURE([OCaml compiler is not new enough.  At least OCaml 3.11 is required])
-    ])
-])
-AM_CONDITIONAL([HAVE_OCAML],
-               [test "x$OCAMLC" != "xno" && test "x$OCAMLFIND" != "xno"])
-AM_CONDITIONAL([HAVE_OCAMLOPT],
-               [test "x$OCAMLOPT" != "xno" && test "x$OCAMLFIND" != "xno"])
-AM_CONDITIONAL([HAVE_OCAMLDOC],
-               [test "x$OCAMLDOC" != "xno"])
-
-dnl OCaml is required if we need to run the generator.
-AS_IF([test "x$OCAMLC" = "xno" || test "x$OCAMLFIND" = "xno"],[
-    AS_IF([! test -f $srcdir/src/guestfs_protocol.x],[
-        AC_MSG_FAILURE([OCaml compiler and findlib is required to build from git.
-If you don't have OCaml available, you should build from a tarball from
-http://libguestfs.org/download])
-    ])
-])
-
-AS_IF([test "x$OCAMLC" != "xno"],[
-    dnl Check for <caml/unixsupport.h> header.
-    old_CPPFLAGS="$CPPFLAGS"
-    CPPFLAGS="$CPPFLAGS -I`$OCAMLC -where`"
-    AC_CHECK_HEADERS([caml/unixsupport.h],[],[],[#include <caml/mlvalues.h>])
-    CPPFLAGS="$old_CPPFLAGS"
-])
-
-OCAML_PKG_gettext=no
-OCAML_PKG_libvirt=no
-OCAML_PKG_oUnit=no
-ounit_is_v2=no
-AS_IF([test "x$OCAMLC" != "xno"],[
-    # Create mllib/common_gettext.ml, gettext functions or stubs.
-
-    # If we're building in a different directory, then mllib/ might
-    # not exist yet, so create it:
-    mkdir -p mllib
-
-    GUESTFS_CREATE_COMMON_GETTEXT_ML([mllib/common_gettext.ml])
-
-    AC_CHECK_OCAML_PKG(libvirt)
-    AC_CHECK_OCAML_PKG(oUnit)
-
-    # oUnit >= 2 is required, so check that it has OUnit2.
-    if test "x$OCAML_PKG_oUnit" != "xno"; then
-        AC_CHECK_OCAML_MODULE(ounit_is_v2,[OUnit.OUnit2],OUnit2,[+oUnit])
-    fi
-])
-AM_CONDITIONAL([HAVE_OCAML_PKG_GETTEXT],
-    [test "x$OCAMLC" != "xno" && test "x$OCAMLFIND" != "xno" && test "x$OCAML_PKG_gettext" != "xno"])
-AM_CONDITIONAL([HAVE_OCAML_PKG_LIBVIRT],
-    [test "x$OCAMLC" != "xno" && test "x$OCAMLFIND" != "xno" && test "x$OCAML_PKG_libvirt" != "xno"])
-AM_CONDITIONAL([HAVE_OCAML_PKG_OUNIT],
-    [test "x$OCAMLC" != "xno" && test "x$OCAMLFIND" != "xno" && test "x$OCAML_PKG_oUnit" != "xno" && test "x$ounit_is_v2" != "xno"])
-
-AC_CHECK_PROG([OCAML_GETTEXT],[ocaml-gettext],[ocaml-gettext],[no])
-AM_CONDITIONAL([HAVE_OCAML_GETTEXT],
-    [test "x$OCAMLC" != "xno" && test "x$OCAMLFIND" != "xno" && test "x$OCAML_PKG_gettext" != "xno" && test "x$OCAML_GETTEXT" != "xno"])
-
-dnl Flags we want to pass to every OCaml compiler call.
-OCAML_WARN_ERROR="-warn-error CDEFLMPSUVYZX-3"
-AC_SUBST([OCAML_WARN_ERROR])
-OCAML_FLAGS="-g -annot"
-AC_SUBST([OCAML_FLAGS])
-
-dnl Check for Perl (optional, for Perl bindings and Perl tools).
-AC_ARG_ENABLE([perl],
-    AS_HELP_STRING([--disable-perl], [disable Perl language bindings]),
-    [],
-    [enable_perl=yes])
-AS_IF([test "x$enable_perl" != "xno"],[
-    dnl Check for Perl modules that must be present to compile and
-    dnl test the Perl bindings.
-    missing_perl_modules=no
-    for pm in Test::More Module::Build; do
-        AC_MSG_CHECKING([for $pm])
-        if ! $PERL -M$pm -e1 >&AS_MESSAGE_LOG_FD 2>&1; then
-            AC_MSG_RESULT([no])
-            missing_perl_modules=yes
-        else
-            AC_MSG_RESULT([yes])
-        fi
-    done
-    if test "x$missing_perl_modules" = "xyes"; then
-        AC_MSG_WARN([some Perl modules required to compile or test the Perl bindings are missing])
-    fi
-])
-AM_CONDITIONAL([HAVE_PERL],
-    [test "x$enable_perl" != "xno" && test "x$PERL" != "xno" && test "x$missing_perl_modules" != "xyes"])
-
-dnl Check for Python (optional, for Python bindings).
-PYTHON_PREFIX=
-PYTHON_VERSION=
-PYTHON_INSTALLDIR=
-
-AC_ARG_ENABLE([python],
-    AS_HELP_STRING([--disable-python], [disable Python language bindings]),
-    [],
-    [enable_python=yes])
-AS_IF([test "x$enable_python" != "xno"],[
-    AC_CHECK_PROG([PYTHON],[python],[python],[no])
-
-    if test "x$PYTHON" != "xno"; then
-	AC_MSG_CHECKING([Python version])
-        PYTHON_VERSION_MAJOR=`$PYTHON -c "import sys; print (sys.version_info@<:@0@:>@)"`
-        PYTHON_VERSION_MINOR=`$PYTHON -c "import sys; print (sys.version_info@<:@1@:>@)"`
-        PYTHON_VERSION="$PYTHON_VERSION_MAJOR.$PYTHON_VERSION_MINOR"
-	AC_MSG_RESULT([$PYTHON_VERSION])
-        # Debian: python-2.7.pc, python-3.2.pc
-        PKG_CHECK_MODULES([PYTHON], [python-"$PYTHON_VERSION"],[
-            AC_SUBST([PYTHON_CFLAGS])
-            AC_SUBST([PYTHON_LIBS])
-            AC_SUBST([PYTHON_VERSION])
-            AC_DEFINE([HAVE_PYTHON],[1],[Python library found at compile time])
-        ],[
-            PKG_CHECK_MODULES([PYTHON], [python],[
-                AC_SUBST([PYTHON_CFLAGS])
-                AC_SUBST([PYTHON_LIBS])
-                AC_SUBST([PYTHON_VERSION])
-                AC_DEFINE([HAVE_PYTHON],[1],[Python library found at compile time])
-            ],[
-                AC_MSG_WARN([python $PYTHON_VERSION not found])
-            ])
-        ])
-        AC_MSG_CHECKING([Python prefix])
-        PYTHON_PREFIX=`$PYTHON -c "import sys; print (sys.prefix)"`
-        AC_MSG_RESULT([$PYTHON_PREFIX])
-
-        AC_ARG_WITH([python-installdir],
-                    [AS_HELP_STRING([--with-python-installdir],
-	                [directory to install python modules @<:@default=check@:>@])],
-			[PYTHON_INSTALLDIR="$withval"
-	                 AC_MSG_NOTICE([Python install dir $PYTHON_INSTALLDIR])],
-			[PYTHON_INSTALLDIR=check])
-
-        if test "x$PYTHON_INSTALLDIR" = "xcheck"; then
-	    PYTHON_INSTALLDIR=
-            AC_MSG_CHECKING([for Python site-packages path])
-            if test -z "$PYTHON_INSTALLDIR"; then
-                PYTHON_INSTALLDIR=`$PYTHON -c "import distutils.sysconfig; \
-                                               print (distutils.sysconfig.get_python_lib(1,0));"`
-            fi
-            AC_MSG_RESULT([$PYTHON_INSTALLDIR])
-        fi
-
-        AC_MSG_CHECKING([for Python extension suffix (PEP-3149)])
-        if test -z "$PYTHON_EXT_SUFFIX"; then
-            python_ext_suffix=`$PYTHON -c "import distutils.sysconfig; \
-                                         print (distutils.sysconfig.get_config_var('EXT_SUFFIX') or distutils.sysconfig.get_config_var('SO'))"`
-            PYTHON_EXT_SUFFIX=$python_ext_suffix
-        fi
-        AC_MSG_RESULT([$PYTHON_EXT_SUFFIX])
-
-        dnl Look for some optional symbols in libpython.
-        old_LIBS="$LIBS"
-
-        PYTHON_BLDLIBRARY=`$PYTHON -c "import distutils.sysconfig; \
-                                       print (distutils.sysconfig.get_config_var('BLDLIBRARY'))"`
-        AC_CHECK_LIB([c],[PyCapsule_New],
-                     [AC_DEFINE([HAVE_PYCAPSULE_NEW],1,
-                                [Found PyCapsule_New in libpython.])],
-                     [],[$PYTHON_BLDLIBRARY])
-        AC_CHECK_LIB([c],[PyString_AsString],
-                     [AC_DEFINE([HAVE_PYSTRING_ASSTRING],1,
-                                [Found PyString_AsString in libpython.])],
-                     [],[$PYTHON_BLDLIBRARY])
-
-        LIBS="$old_LIBS"
-    fi
-
-    AC_SUBST(PYTHON_PREFIX)
-    AC_SUBST(PYTHON_VERSION)
-    AC_SUBST(PYTHON_INSTALLDIR)
-    AC_SUBST(PYTHON_EXT_SUFFIX)
-])
-AM_CONDITIONAL([HAVE_PYTHON],
-    [test "x$PYTHON" != "xno" && test "x$PYTHON_LIBS" != "x" ])
-
-dnl Check for Ruby and rake (optional, for Ruby bindings).
-AC_ARG_ENABLE([ruby],
-    AS_HELP_STRING([--disable-ruby], [disable Ruby language bindings]),
-    [],
-    [enable_ruby=yes])
-AS_IF([test "x$enable_ruby" != "xno"],[
-    AC_CHECK_PROG([RUBY],[ruby],[ruby],[no])
-    AC_CHECK_PROG([RAKE],[rake],[rake],[no])
-
-    AS_IF([test -n "$RUBY" && test -n "$RAKE"],[
-        dnl Find the library.  Note on Debian it's not -lruby.
-        AC_MSG_CHECKING([for C library for Ruby extensions])
-        ruby_cmd='puts RbConfig::CONFIG@<:@"RUBY_SO_NAME"@:>@'
-        echo running: $RUBY -rrbconfig -e \'$ruby_cmd\' >&AS_MESSAGE_LOG_FD
-        $RUBY -rrbconfig -e "$ruby_cmd" >conftest 2>&AS_MESSAGE_LOG_FD
-        libruby="$(cat conftest)"
-        rm conftest
-        AS_IF([test -n "$libruby"],[
-            ruby_cmd='puts RbConfig::CONFIG@<:@"libdir"@:>@'
-            echo running: $RUBY -rrbconfig -e \'$ruby_cmd\' >&AS_MESSAGE_LOG_FD
-            $RUBY -rrbconfig -e "$ruby_cmd" >conftest 2>&AS_MESSAGE_LOG_FD
-            libruby_libdir="$(cat conftest)"
-            rm conftest
-            test -n "$libruby_libdir" && libruby_libdir="-L$libruby_libdir"
-            AC_MSG_RESULT([-l$libruby])
-            AC_CHECK_LIB([$libruby],[ruby_init],
-                         [have_libruby=1],[have_libruby=],[$libruby_libdir])
-        ],[
-            AC_MSG_RESULT([not found])
-        ])
-    ])
-])
-AM_CONDITIONAL([HAVE_RUBY],
-    [test -n "$RUBY" && test -n "$RAKE" && test -n "$have_libruby"])
-
-dnl Check for Java.
-AC_ARG_WITH(java,
-    [AS_HELP_STRING([--with-java],
-        [specify path to JDK directory (for the Java language bindings) @<:@default=check@:>@])],
-    [],
-    [with_java=check])
-
-if test "x$with_java" != "xno"; then
-    if test "x$with_java" != "xyes" && test "x$with_java" != "xcheck"
-    then
-        # Reject unsafe characters in $JAVA
-        jh_lf='
-'
-        case $JAVA in
-          *[\\\"\#\$\&\'\`$jh_lf\ \	]*)
-            AC_MSG_FAILURE([unsafe \$JAVA directory (use --without-java to disable Java support)]);;
-        esac
-        if test -d "$with_java"; then
-            JAVA="$with_java"
-        else
-            AC_MSG_FAILURE([$with_java is not a directory (use --without-java to disable Java support)])
-        fi
-    fi
-
-    if test "x$JAVA" = "x"; then
-        # Look for Java in some likely locations.
-        for d in \
-            /usr/lib/jvm/java \
-            /usr/lib64/jvm/java \
-            /usr/lib/jvm/default-java \
-            /usr/lib/jvm/default \
-            /usr/lib/jvm/java-8-openjdk \
-            /usr/lib/jvm/java-7-openjdk \
-            /usr/lib/jvm/java-6-openjdk
-        do
-            if test -d $d && test -f $d/bin/java; then
-                JAVA=$d
-                break
-            fi
-        done
-    fi
-
-    if test "x$JAVA" != "x"; then
-        AC_MSG_CHECKING(for JDK in $JAVA)
-        if test ! -x "$JAVA/bin/java"; then
-            AC_MSG_ERROR([missing $JAVA/bin/java binary (use --without-java to disable Java support)])
-        else
-            JAVA_EXE="$JAVA/bin/java"
-        fi
-        if test ! -x "$JAVA/bin/javac"; then
-            AC_MSG_ERROR([missing $JAVA/bin/javac binary])
-        else
-            JAVAC="$JAVA/bin/javac"
-        fi
-        if test ! -x "$JAVA/bin/javah"; then
-            AC_MSG_ERROR([missing $JAVA/bin/javah binary])
-        else
-            JAVAH="$JAVA/bin/javah"
-        fi
-        if test ! -x "$JAVA/bin/javadoc"; then
-            AC_MSG_ERROR([missing $JAVA/bin/javadoc binary])
-        else
-            JAVADOC="$JAVA/bin/javadoc"
-        fi
-        if test ! -x "$JAVA/bin/jar"; then
-            AC_MSG_ERROR([missing $JAVA/bin/jar binary])
-        else
-            JAR="$JAVA/bin/jar"
-        fi
-        java_version=`$JAVA_EXE -version 2>&1 | grep "java version"`
-        AC_MSG_RESULT(found $java_version in $JAVA)
-
-        dnl Find jni.h.
-        AC_MSG_CHECKING([for jni.h])
-        if test -f "$JAVA/include/jni.h"; then
-            JNI_CFLAGS="-I$JAVA/include"
-        else
-            if test "`find $JAVA -name jni.h`" != ""; then
-                head=`find $JAVA -name jni.h | tail -1`
-                dir=`dirname "$head"`
-                JNI_CFLAGS="-I$dir"
-            else
-                AC_MSG_FAILURE([missing jni.h header file])
-            fi
-        fi
-        AC_MSG_RESULT([$JNI_CFLAGS])
-
-        dnl Find jni_md.h.
-        AC_MSG_CHECKING([for jni_md.h])
-        case "$build_os" in
-        *linux*) system="linux" ;;
-        *SunOS*) system="solaris" ;;
-        *cygwin*) system="win32" ;;
-        *) system="$build_os" ;;
-        esac
-        if test -f "$JAVA/include/$system/jni_md.h"; then
-            JNI_CFLAGS="$JNI_CFLAGS -I$JAVA/include/$system"
-        else
-            if test "`find $JAVA -name jni_md.h`" != ""; then
-                head=`find $JAVA -name jni_md.h | tail -1`
-                dir=`dirname "$head"`
-                JNI_CFLAGS="$JNI_CFLAGS -I$dir"
-            else
-                AC_MSG_FAILURE([missing jni_md.h header file])
-            fi
-        fi
-        AC_MSG_RESULT([$JNI_CFLAGS])
-
-        dnl Need extra version flag?
-        AC_MSG_CHECKING([extra javac flags])
-        EXTRA_JAVAC_FLAGS=
-        javac_version=`$JAVAC -version 2>&1`
-        case "$javac_version" in
-        *Eclipse*)
-            EXTRA_JAVAC_FLAGS="-source 1.5" ;;
-        esac
-        AC_MSG_RESULT([$EXTRA_JAVAC_FLAGS])
-
-        dnl Extra lint flags?
-        AC_MSG_CHECKING([extra javac lint flags])
-        if $JAVAC -X >/dev/null 2>&1 && \
-           $JAVAC -X 2>&1 | grep -q -- '-Xlint:.*all'; then
-            AC_MSG_RESULT([-Xlint:all])
-            EXTRA_JAVAC_FLAGS="$EXTRA_JAVAC_FLAGS -Xlint:all"
-        else
-            AC_MSG_RESULT([no])
-        fi
-
-        dnl Where to install jarfiles, jnifiles
-        if test -z $JAR_INSTALL_DIR; then
-            JAR_INSTALL_DIR=\${prefix}/share/java
-        fi
-        if test -z $JNI_INSTALL_DIR; then
-            JNI_INSTALL_DIR=\${libdir}
-        fi
-
-        dnl JNI version.
-        jni_major_version=`echo "$VERSION" | $AWK -F. '{print $1}'`
-        jni_minor_version=`echo "$VERSION" | $AWK -F. '{print $2}'`
-        jni_micro_version=`echo "$VERSION" | $AWK -F. '{print $3}'`
-        JNI_VERSION_INFO=`expr "$jni_major_version" + "$jni_minor_version"`":$jni_micro_version:$jni_minor_version"
-    fi
-
-    AC_SUBST(JAVA)
-    AC_SUBST(JAVA_EXE)
-    AC_SUBST(JAVAC)
-    AC_SUBST(JAVAH)
-    AC_SUBST(JAVADOC)
-    AC_SUBST(JAR)
-    AC_SUBST(JNI_CFLAGS)
-    AC_SUBST(EXTRA_JAVAC_FLAGS)
-    AC_SUBST(JAR_INSTALL_DIR)
-    AC_SUBST(JNI_INSTALL_DIR)
-    AC_SUBST(JNI_VERSION_INFO)
-fi
-
-AM_CONDITIONAL([HAVE_JAVA],[test "x$with_java" != "xno" && test -n "$JAVAC"])
-
-dnl Check for Haskell (GHC).
-GHC=no
-AC_ARG_ENABLE([haskell],
-    AS_HELP_STRING([--disable-haskell], [disable Haskell language bindings]),
-    [],
-    [enable_haskell=yes])
-AS_IF([test "x$enable_haskell" != "xno"],[
-    GHC=
-    AC_CHECK_PROG([GHC],[ghc],[ghc],[no])
-])
-AM_CONDITIONAL([HAVE_HASKELL],[test "x$GHC" != "xno"])
-
-dnl PHP
-PHP=no
-AC_ARG_ENABLE([php],
-    AS_HELP_STRING([--disable-php], [disable PHP language bindings]),
-    [],
-    [enable_php=yes])
-AS_IF([test "x$enable_php" != "xno"],[
-    PHP=
-    AC_CHECK_PROG([PHP],[php],[php],[no])
-    AC_CHECK_PROG([PHPIZE],[phpize],[phpize],[no])
-])
-AM_CONDITIONAL([HAVE_PHP], [test "x$PHP" != "xno" && test "x$PHPIZE" != "xno"])
-
-dnl Erlang
-ERLANG=no
-AC_ARG_ENABLE([erlang],
-    AS_HELP_STRING([--disable-erlang], [disable Erlang language bindings]),
-         [],
-         [enable_erlang=yes])
-# NB: Don't use AS_IF here: it doesn't work.
-if test "x$enable_erlang" != "xno"; then
-        ERLANG=
-        AC_ERLANG_PATH_ERLC([no])
-
-        if test "x$ERLC" != "xno"; then
-            AC_ERLANG_CHECK_LIB([erl_interface], [],
-                                [AC_MSG_FAILURE([Erlang erl_interface library not installed.  Use --disable-erlang to disable.])])
-            AC_ERLANG_SUBST_LIB_DIR
-        fi
-fi
-AM_CONDITIONAL([HAVE_ERLANG], [test "x$ERLANG" != "xno" && test "x$ERLC" != "xno"])
-
-dnl Lua
-AC_ARG_ENABLE([lua],
-    AS_HELP_STRING([--disable-lua], [disable Lua language bindings]),
-        [],
-        [enable_lua=yes])
-AS_IF([test "x$enable_lua" != "xno"],[
-    AC_CHECK_PROG([LUA],[lua],[lua],[no])
-    AS_IF([test "x$LUA" != "xno"],[
-        AC_MSG_CHECKING([for Lua version])
-        LUA_VERSION=`$LUA -e 'print(_VERSION)' | $AWK '{print $2}'`
-        AC_MSG_RESULT([$LUA_VERSION])
-        dnl On Debian it's 'lua5.1', 'lua5.2' etc.  On Fedora, just 'lua'.
-        PKG_CHECK_MODULES([LUA], [lua$LUA_VERSION],[
-            AC_SUBST([LUA_CFLAGS])
-            AC_SUBST([LUA_LIBS])
-            AC_SUBST([LUA_VERSION])
-            AC_DEFINE([HAVE_LUA],[1],[Lua library found at compile time])
-        ],[
-            PKG_CHECK_MODULES([LUA], [lua],[
-                AC_SUBST([LUA_CFLAGS])
-                AC_SUBST([LUA_LIBS])
-                AC_SUBST([LUA_VERSION])
-                AC_DEFINE([HAVE_LUA],[1],[Lua library found at compile time])
-            ],[
-                AC_MSG_WARN([lua $LUA_VERSION not found])
-            ])
-        ])
-    ])
-])
-AM_CONDITIONAL([HAVE_LUA],[test "x$LUA_LIBS" != "x"])
-
-dnl Golang
-AC_ARG_ENABLE([golang],
-    AS_HELP_STRING([--disable-golang], [disable Go language bindings]),
-        [],
-        [enable_golang=yes])
-AS_IF([test "x$enable_golang" != "xno"],[
-    AC_CHECK_PROG([GOLANG],[go],[go],[no])
-    AS_IF([test "x$GOLANG" != "xno"],[
-        AC_MSG_CHECKING([if $GOLANG is usable])
-        AS_IF([$GOLANG run $srcdir/golang/config-test.go 2>&AS_MESSAGE_LOG_FD],[
-            AC_MSG_RESULT([yes])
-
-            # Substitute some golang environment.
-            GOOS=`$GOLANG env GOOS`
-            GOARCH=`$GOLANG env GOARCH`
-            GOROOT=`$GOLANG env GOROOT`
-            AC_SUBST([GOOS])
-            AC_SUBST([GOARCH])
-            AC_SUBST([GOROOT])
-        ],[
-            AC_MSG_RESULT([no])
-            AC_MSG_WARN([golang ($GOLANG) is installed but not usable])
-            GOLANG=no
-        ])
-    ])
-],[GOLANG=no])
-AM_CONDITIONAL([HAVE_GOLANG],[test "x$GOLANG" != "xno"])
+dnl Check for language bindings.
+m4_include([m4/guestfs_ocaml.m4])
+m4_include([m4/guestfs_perl.m4])
+m4_include([m4/guestfs_python.m4])
+m4_include([m4/guestfs_ruby.m4])
+m4_include([m4/guestfs_java.m4])
+m4_include([m4/guestfs_haskell.m4])
+m4_include([m4/guestfs_php.m4])
+m4_include([m4/guestfs_erlang.m4])
+m4_include([m4/guestfs_lua.m4])
+m4_include([m4/guestfs_golang.m4])
+m4_include([m4/guestfs_gobject.m4])
 
 dnl Check for Perl modules needed by Perl virt tools (virt-df, etc.)
 AS_IF([test "x$PERL" != "xno"],[
@@ -1598,58 +1114,6 @@ AS_IF([test "x$PERL" != "xno"],[
 AM_CONDITIONAL([HAVE_TOOLS],
     [test "x$PERL" != "xno" && test "x$missing_perl_modules" != "xyes"])
 
-dnl gobject library
-AC_ARG_ENABLE([gobject],
-    AS_HELP_STRING([--disable-gobject], [disable GObject bindings]),
-    [],
-    [enable_gobject=yes])
-AS_IF([test "x$enable_gobject" != "xno"],[
-    PKG_CHECK_MODULES([GOBJECT], [gobject-2.0 >= 2.26.0],[
-        AC_SUBST([GOBJECT_CFLAGS])
-        AC_SUBST([GOBJECT_LIBS])
-        AC_DEFINE([HAVE_GOBJECT],[1],
-                  [GObject library found at compile time.])
-    ],
-    [AC_MSG_WARN([gobject library not found, gobject binding will be disabled])])
-
-    PKG_CHECK_MODULES([GIO], [gio-2.0 >= 2.26.0],[
-        AC_SUBST([GIO_CFLAGS])
-        AC_SUBST([GIO_LIBS])
-        AC_DEFINE([HAVE_GIO],[1],
-                  [gio library found at compile time.])
-    ],
-    [AC_MSG_WARN([gio library not found, gobject binding will be disabled])])
-])
-AM_CONDITIONAL([HAVE_GOBJECT],
-               [test "x$GOBJECT_LIBS" != "x" -a "x$GIO_LIBS" != "x"])
-
-AC_CHECK_PROG([GJS],[gjs],[gjs])
-AS_IF([test "x$GJS" = "x"],
-      [AC_MSG_WARN([gjs not found, gobject bindtests will not run])])
-
-dnl gobject introspection
-m4_ifdef([GOBJECT_INTROSPECTION_CHECK], [
-    GOBJECT_INTROSPECTION_CHECK([1.30.0])
-
-    dnl The above check automatically sets HAVE_INTROSPECTION, but we
-    dnl want this to be conditional on gobject also being
-    dnl available. We can't move the above check inside the gobject if
-    dnl block above or HAVE_INTROSPECTION ends up undefined, so we
-    dnl recheck it here.
-    AM_CONDITIONAL([HAVE_INTROSPECTION],
-                   [test "x$HAVE_INTROSPECTION_TRUE" = "x" &&
-                    test "x$HAVE_GOBJECT_TRUE" = "x"])
-],[
-    AM_CONDITIONAL([HAVE_INTROSPECTION], [false])
-])
-
-# check for gtk-doc
-m4_ifdef([GTK_DOC_CHECK], [
-    GTK_DOC_CHECK([1.14],[--flavour no-tmpl])
-],[
-    AM_CONDITIONAL([ENABLE_GTK_DOC], false)
-])
-
 dnl Bash completion.
 PKG_CHECK_MODULES([BASH_COMPLETION], [bash-completion >= 2.0], [
     bash_completion=yes
diff --git a/m4/guestfs_erlang.m4 b/m4/guestfs_erlang.m4
new file mode 100644
index 0000000..018f391
--- /dev/null
+++ b/m4/guestfs_erlang.m4
@@ -0,0 +1,35 @@
+# libguestfs
+# Copyright (C) 2009-2015 Red Hat Inc.
+#
+# 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, write to the Free Software
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+
+dnl Erlang
+ERLANG=no
+AC_ARG_ENABLE([erlang],
+    AS_HELP_STRING([--disable-erlang], [disable Erlang language bindings]),
+         [],
+         [enable_erlang=yes])
+# NB: Don't use AS_IF here: it doesn't work.
+if test "x$enable_erlang" != "xno"; then
+        ERLANG=
+        AC_ERLANG_PATH_ERLC([no])
+
+        if test "x$ERLC" != "xno"; then
+            AC_ERLANG_CHECK_LIB([erl_interface], [],
+                                [AC_MSG_FAILURE([Erlang erl_interface library not installed.  Use --disable-erlang to disable.])])
+            AC_ERLANG_SUBST_LIB_DIR
+        fi
+fi
+AM_CONDITIONAL([HAVE_ERLANG], [test "x$ERLANG" != "xno" && test "x$ERLC" != "xno"])
diff --git a/m4/guestfs_gobject.m4 b/m4/guestfs_gobject.m4
new file mode 100644
index 0000000..a845b8d
--- /dev/null
+++ b/m4/guestfs_gobject.m4
@@ -0,0 +1,68 @@
+# libguestfs
+# Copyright (C) 2009-2015 Red Hat Inc.
+#
+# 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, write to the Free Software
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+
+dnl gobject library
+AC_ARG_ENABLE([gobject],
+    AS_HELP_STRING([--disable-gobject], [disable GObject bindings]),
+    [],
+    [enable_gobject=yes])
+AS_IF([test "x$enable_gobject" != "xno"],[
+    PKG_CHECK_MODULES([GOBJECT], [gobject-2.0 >= 2.26.0],[
+        AC_SUBST([GOBJECT_CFLAGS])
+        AC_SUBST([GOBJECT_LIBS])
+        AC_DEFINE([HAVE_GOBJECT],[1],
+                  [GObject library found at compile time.])
+    ],
+    [AC_MSG_WARN([gobject library not found, gobject binding will be disabled])])
+
+    PKG_CHECK_MODULES([GIO], [gio-2.0 >= 2.26.0],[
+        AC_SUBST([GIO_CFLAGS])
+        AC_SUBST([GIO_LIBS])
+        AC_DEFINE([HAVE_GIO],[1],
+                  [gio library found at compile time.])
+    ],
+    [AC_MSG_WARN([gio library not found, gobject binding will be disabled])])
+])
+AM_CONDITIONAL([HAVE_GOBJECT],
+               [test "x$GOBJECT_LIBS" != "x" -a "x$GIO_LIBS" != "x"])
+
+AC_CHECK_PROG([GJS],[gjs],[gjs])
+AS_IF([test "x$GJS" = "x"],
+      [AC_MSG_WARN([gjs not found, gobject bindtests will not run])])
+
+dnl gobject introspection
+m4_ifdef([GOBJECT_INTROSPECTION_CHECK], [
+    GOBJECT_INTROSPECTION_CHECK([1.30.0])
+
+    dnl The above check automatically sets HAVE_INTROSPECTION, but we
+    dnl want this to be conditional on gobject also being
+    dnl available. We can't move the above check inside the gobject if
+    dnl block above or HAVE_INTROSPECTION ends up undefined, so we
+    dnl recheck it here.
+    AM_CONDITIONAL([HAVE_INTROSPECTION],
+                   [test "x$HAVE_INTROSPECTION_TRUE" = "x" &&
+                    test "x$HAVE_GOBJECT_TRUE" = "x"])
+],[
+    AM_CONDITIONAL([HAVE_INTROSPECTION], [false])
+])
+
+# check for gtk-doc
+m4_ifdef([GTK_DOC_CHECK], [
+    GTK_DOC_CHECK([1.14],[--flavour no-tmpl])
+],[
+    AM_CONDITIONAL([ENABLE_GTK_DOC], false)
+])
diff --git a/m4/guestfs_golang.m4 b/m4/guestfs_golang.m4
new file mode 100644
index 0000000..961d982
--- /dev/null
+++ b/m4/guestfs_golang.m4
@@ -0,0 +1,44 @@
+# libguestfs
+# Copyright (C) 2009-2015 Red Hat Inc.
+#
+# 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, write to the Free Software
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+
+dnl Golang
+AC_ARG_ENABLE([golang],
+    AS_HELP_STRING([--disable-golang], [disable Go language bindings]),
+        [],
+        [enable_golang=yes])
+AS_IF([test "x$enable_golang" != "xno"],[
+    AC_CHECK_PROG([GOLANG],[go],[go],[no])
+    AS_IF([test "x$GOLANG" != "xno"],[
+        AC_MSG_CHECKING([if $GOLANG is usable])
+        AS_IF([$GOLANG run $srcdir/golang/config-test.go 2>&AS_MESSAGE_LOG_FD],[
+            AC_MSG_RESULT([yes])
+
+            # Substitute some golang environment.
+            GOOS=`$GOLANG env GOOS`
+            GOARCH=`$GOLANG env GOARCH`
+            GOROOT=`$GOLANG env GOROOT`
+            AC_SUBST([GOOS])
+            AC_SUBST([GOARCH])
+            AC_SUBST([GOROOT])
+        ],[
+            AC_MSG_RESULT([no])
+            AC_MSG_WARN([golang ($GOLANG) is installed but not usable])
+            GOLANG=no
+        ])
+    ])
+],[GOLANG=no])
+AM_CONDITIONAL([HAVE_GOLANG],[test "x$GOLANG" != "xno"])
diff --git a/m4/guestfs_haskell.m4 b/m4/guestfs_haskell.m4
new file mode 100644
index 0000000..8f62c10
--- /dev/null
+++ b/m4/guestfs_haskell.m4
@@ -0,0 +1,28 @@
+# libguestfs
+# Copyright (C) 2009-2015 Red Hat Inc.
+#
+# 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, write to the Free Software
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+
+dnl Check for Haskell (GHC).
+GHC=no
+AC_ARG_ENABLE([haskell],
+    AS_HELP_STRING([--disable-haskell], [disable Haskell language bindings]),
+    [],
+    [enable_haskell=yes])
+AS_IF([test "x$enable_haskell" != "xno"],[
+    GHC=
+    AC_CHECK_PROG([GHC],[ghc],[ghc],[no])
+])
+AM_CONDITIONAL([HAVE_HASKELL],[test "x$GHC" != "xno"])
diff --git a/m4/guestfs_java.m4 b/m4/guestfs_java.m4
new file mode 100644
index 0000000..ac7159a
--- /dev/null
+++ b/m4/guestfs_java.m4
@@ -0,0 +1,174 @@
+# libguestfs
+# Copyright (C) 2009-2015 Red Hat Inc.
+#
+# 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, write to the Free Software
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+
+dnl Check for Java.
+AC_ARG_WITH(java,
+    [AS_HELP_STRING([--with-java],
+        [specify path to JDK directory (for the Java language bindings) @<:@default=check@:>@])],
+    [],
+    [with_java=check])
+
+if test "x$with_java" != "xno"; then
+    if test "x$with_java" != "xyes" && test "x$with_java" != "xcheck"
+    then
+        # Reject unsafe characters in $JAVA
+        jh_lf='
+'
+        case $JAVA in
+          *[\\\"\#\$\&\'\`$jh_lf\ \	]*)
+            AC_MSG_FAILURE([unsafe \$JAVA directory (use --without-java to disable Java support)]);;
+        esac
+        if test -d "$with_java"; then
+            JAVA="$with_java"
+        else
+            AC_MSG_FAILURE([$with_java is not a directory (use --without-java to disable Java support)])
+        fi
+    fi
+
+    if test "x$JAVA" = "x"; then
+        # Look for Java in some likely locations.
+        for d in \
+            /usr/lib/jvm/java \
+            /usr/lib64/jvm/java \
+            /usr/lib/jvm/default-java \
+            /usr/lib/jvm/default \
+            /usr/lib/jvm/java-8-openjdk \
+            /usr/lib/jvm/java-7-openjdk \
+            /usr/lib/jvm/java-6-openjdk
+        do
+            if test -d $d && test -f $d/bin/java; then
+                JAVA=$d
+                break
+            fi
+        done
+    fi
+
+    if test "x$JAVA" != "x"; then
+        AC_MSG_CHECKING(for JDK in $JAVA)
+        if test ! -x "$JAVA/bin/java"; then
+            AC_MSG_ERROR([missing $JAVA/bin/java binary (use --without-java to disable Java support)])
+        else
+            JAVA_EXE="$JAVA/bin/java"
+        fi
+        if test ! -x "$JAVA/bin/javac"; then
+            AC_MSG_ERROR([missing $JAVA/bin/javac binary])
+        else
+            JAVAC="$JAVA/bin/javac"
+        fi
+        if test ! -x "$JAVA/bin/javah"; then
+            AC_MSG_ERROR([missing $JAVA/bin/javah binary])
+        else
+            JAVAH="$JAVA/bin/javah"
+        fi
+        if test ! -x "$JAVA/bin/javadoc"; then
+            AC_MSG_ERROR([missing $JAVA/bin/javadoc binary])
+        else
+            JAVADOC="$JAVA/bin/javadoc"
+        fi
+        if test ! -x "$JAVA/bin/jar"; then
+            AC_MSG_ERROR([missing $JAVA/bin/jar binary])
+        else
+            JAR="$JAVA/bin/jar"
+        fi
+        java_version=`$JAVA_EXE -version 2>&1 | grep "java version"`
+        AC_MSG_RESULT(found $java_version in $JAVA)
+
+        dnl Find jni.h.
+        AC_MSG_CHECKING([for jni.h])
+        if test -f "$JAVA/include/jni.h"; then
+            JNI_CFLAGS="-I$JAVA/include"
+        else
+            if test "`find $JAVA -name jni.h`" != ""; then
+                head=`find $JAVA -name jni.h | tail -1`
+                dir=`dirname "$head"`
+                JNI_CFLAGS="-I$dir"
+            else
+                AC_MSG_FAILURE([missing jni.h header file])
+            fi
+        fi
+        AC_MSG_RESULT([$JNI_CFLAGS])
+
+        dnl Find jni_md.h.
+        AC_MSG_CHECKING([for jni_md.h])
+        case "$build_os" in
+        *linux*) system="linux" ;;
+        *SunOS*) system="solaris" ;;
+        *cygwin*) system="win32" ;;
+        *) system="$build_os" ;;
+        esac
+        if test -f "$JAVA/include/$system/jni_md.h"; then
+            JNI_CFLAGS="$JNI_CFLAGS -I$JAVA/include/$system"
+        else
+            if test "`find $JAVA -name jni_md.h`" != ""; then
+                head=`find $JAVA -name jni_md.h | tail -1`
+                dir=`dirname "$head"`
+                JNI_CFLAGS="$JNI_CFLAGS -I$dir"
+            else
+                AC_MSG_FAILURE([missing jni_md.h header file])
+            fi
+        fi
+        AC_MSG_RESULT([$JNI_CFLAGS])
+
+        dnl Need extra version flag?
+        AC_MSG_CHECKING([extra javac flags])
+        EXTRA_JAVAC_FLAGS=
+        javac_version=`$JAVAC -version 2>&1`
+        case "$javac_version" in
+        *Eclipse*)
+            EXTRA_JAVAC_FLAGS="-source 1.5" ;;
+        esac
+        AC_MSG_RESULT([$EXTRA_JAVAC_FLAGS])
+
+        dnl Extra lint flags?
+        AC_MSG_CHECKING([extra javac lint flags])
+        if $JAVAC -X >/dev/null 2>&1 && \
+           $JAVAC -X 2>&1 | grep -q -- '-Xlint:.*all'; then
+            AC_MSG_RESULT([-Xlint:all])
+            EXTRA_JAVAC_FLAGS="$EXTRA_JAVAC_FLAGS -Xlint:all"
+        else
+            AC_MSG_RESULT([no])
+        fi
+
+        dnl Where to install jarfiles, jnifiles
+        if test -z $JAR_INSTALL_DIR; then
+            JAR_INSTALL_DIR=\${prefix}/share/java
+        fi
+        if test -z $JNI_INSTALL_DIR; then
+            JNI_INSTALL_DIR=\${libdir}
+        fi
+
+        dnl JNI version.
+        jni_major_version=`echo "$VERSION" | $AWK -F. '{print $1}'`
+        jni_minor_version=`echo "$VERSION" | $AWK -F. '{print $2}'`
+        jni_micro_version=`echo "$VERSION" | $AWK -F. '{print $3}'`
+        JNI_VERSION_INFO=`expr "$jni_major_version" + "$jni_minor_version"`":$jni_micro_version:$jni_minor_version"
+    fi
+
+    AC_SUBST(JAVA)
+    AC_SUBST(JAVA_EXE)
+    AC_SUBST(JAVAC)
+    AC_SUBST(JAVAH)
+    AC_SUBST(JAVADOC)
+    AC_SUBST(JAR)
+    AC_SUBST(JNI_CFLAGS)
+    AC_SUBST(EXTRA_JAVAC_FLAGS)
+    AC_SUBST(JAR_INSTALL_DIR)
+    AC_SUBST(JNI_INSTALL_DIR)
+    AC_SUBST(JNI_VERSION_INFO)
+fi
+
+AM_CONDITIONAL([HAVE_JAVA],[test "x$with_java" != "xno" && test -n "$JAVAC"])
diff --git a/m4/guestfs_lua.m4 b/m4/guestfs_lua.m4
new file mode 100644
index 0000000..a07cb51
--- /dev/null
+++ b/m4/guestfs_lua.m4
@@ -0,0 +1,47 @@
+# libguestfs
+# Copyright (C) 2009-2015 Red Hat Inc.
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+
+dnl Lua
+AC_ARG_ENABLE([lua],
+    AS_HELP_STRING([--disable-lua], [disable Lua language bindings]),
+        [],
+        [enable_lua=yes])
+AS_IF([test "x$enable_lua" != "xno"],[
+    AC_CHECK_PROG([LUA],[lua],[lua],[no])
+    AS_IF([test "x$LUA" != "xno"],[
+        AC_MSG_CHECKING([for Lua version])
+        LUA_VERSION=`$LUA -e 'print(_VERSION)' | $AWK '{print $2}'`
+        AC_MSG_RESULT([$LUA_VERSION])
+        dnl On Debian it's 'lua5.1', 'lua5.2' etc.  On Fedora, just 'lua'.
+        PKG_CHECK_MODULES([LUA], [lua$LUA_VERSION],[
+            AC_SUBST([LUA_CFLAGS])
+            AC_SUBST([LUA_LIBS])
+            AC_SUBST([LUA_VERSION])
+            AC_DEFINE([HAVE_LUA],[1],[Lua library found at compile time])
+        ],[
+            PKG_CHECK_MODULES([LUA], [lua],[
+                AC_SUBST([LUA_CFLAGS])
+                AC_SUBST([LUA_LIBS])
+                AC_SUBST([LUA_VERSION])
+                AC_DEFINE([HAVE_LUA],[1],[Lua library found at compile time])
+            ],[
+                AC_MSG_WARN([lua $LUA_VERSION not found])
+            ])
+        ])
+    ])
+])
+AM_CONDITIONAL([HAVE_LUA],[test "x$LUA_LIBS" != "x"])
diff --git a/m4/guestfs_ocaml.m4 b/m4/guestfs_ocaml.m4
new file mode 100644
index 0000000..b3e9387
--- /dev/null
+++ b/m4/guestfs_ocaml.m4
@@ -0,0 +1,104 @@
+# libguestfs
+# Copyright (C) 2009-2015 Red Hat Inc.
+#
+# 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, write to the Free Software
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+
+dnl Check for OCaml (optional, for OCaml bindings and OCaml tools).
+OCAMLC=no
+OCAMLFIND=no
+AC_ARG_ENABLE([ocaml],
+    AS_HELP_STRING([--disable-ocaml], [disable OCaml language bindings]),
+    [],
+    [enable_ocaml=yes])
+AS_IF([test "x$enable_ocaml" != "xno"],[
+    dnl OCAMLC and OCAMLFIND have to be unset first, otherwise
+    dnl AC_CHECK_TOOL (inside AC_PROG_OCAML) will not look.
+    OCAMLC=
+    OCAMLFIND=
+    AC_PROG_OCAML
+    AC_PROG_FINDLIB
+
+    dnl OCaml >= 3.11 is required.
+    AC_MSG_CHECKING([if OCaml version >= 3.11])
+    ocaml_major="`echo $OCAMLVERSION | $AWK -F. '{print $1}'`"
+    ocaml_minor="`echo $OCAMLVERSION | $AWK -F. '{print $2}'`"
+    AS_IF([test "$ocaml_major" -ge 4 || ( test "$ocaml_major" -eq 3 && test "$ocaml_minor" -ge 11 )],[
+        AC_MSG_RESULT([yes])
+    ],[
+        AC_MSG_RESULT([no])
+        AC_MSG_FAILURE([OCaml compiler is not new enough.  At least OCaml 3.11 is required])
+    ])
+])
+AM_CONDITIONAL([HAVE_OCAML],
+               [test "x$OCAMLC" != "xno" && test "x$OCAMLFIND" != "xno"])
+AM_CONDITIONAL([HAVE_OCAMLOPT],
+               [test "x$OCAMLOPT" != "xno" && test "x$OCAMLFIND" != "xno"])
+AM_CONDITIONAL([HAVE_OCAMLDOC],
+               [test "x$OCAMLDOC" != "xno"])
+
+dnl OCaml is required if we need to run the generator.
+AS_IF([test "x$OCAMLC" = "xno" || test "x$OCAMLFIND" = "xno"],[
+    AS_IF([! test -f $srcdir/src/guestfs_protocol.x],[
+        AC_MSG_FAILURE([OCaml compiler and findlib is required to build from git.
+If you don't have OCaml available, you should build from a tarball from
+http://libguestfs.org/download])
+    ])
+])
+
+AS_IF([test "x$OCAMLC" != "xno"],[
+    dnl Check for <caml/unixsupport.h> header.
+    old_CPPFLAGS="$CPPFLAGS"
+    CPPFLAGS="$CPPFLAGS -I`$OCAMLC -where`"
+    AC_CHECK_HEADERS([caml/unixsupport.h],[],[],[#include <caml/mlvalues.h>])
+    CPPFLAGS="$old_CPPFLAGS"
+])
+
+OCAML_PKG_gettext=no
+OCAML_PKG_libvirt=no
+OCAML_PKG_oUnit=no
+ounit_is_v2=no
+AS_IF([test "x$OCAMLC" != "xno"],[
+    # Create mllib/common_gettext.ml, gettext functions or stubs.
+
+    # If we're building in a different directory, then mllib/ might
+    # not exist yet, so create it:
+    mkdir -p mllib
+
+    GUESTFS_CREATE_COMMON_GETTEXT_ML([mllib/common_gettext.ml])
+
+    AC_CHECK_OCAML_PKG(libvirt)
+    AC_CHECK_OCAML_PKG(oUnit)
+
+    # oUnit >= 2 is required, so check that it has OUnit2.
+    if test "x$OCAML_PKG_oUnit" != "xno"; then
+        AC_CHECK_OCAML_MODULE(ounit_is_v2,[OUnit.OUnit2],OUnit2,[+oUnit])
+    fi
+])
+AM_CONDITIONAL([HAVE_OCAML_PKG_GETTEXT],
+    [test "x$OCAMLC" != "xno" && test "x$OCAMLFIND" != "xno" && test "x$OCAML_PKG_gettext" != "xno"])
+AM_CONDITIONAL([HAVE_OCAML_PKG_LIBVIRT],
+    [test "x$OCAMLC" != "xno" && test "x$OCAMLFIND" != "xno" && test "x$OCAML_PKG_libvirt" != "xno"])
+AM_CONDITIONAL([HAVE_OCAML_PKG_OUNIT],
+    [test "x$OCAMLC" != "xno" && test "x$OCAMLFIND" != "xno" && test "x$OCAML_PKG_oUnit" != "xno" && test "x$ounit_is_v2" != "xno"])
+
+AC_CHECK_PROG([OCAML_GETTEXT],[ocaml-gettext],[ocaml-gettext],[no])
+AM_CONDITIONAL([HAVE_OCAML_GETTEXT],
+    [test "x$OCAMLC" != "xno" && test "x$OCAMLFIND" != "xno" && test "x$OCAML_PKG_gettext" != "xno" && test "x$OCAML_GETTEXT" != "xno"])
+
+dnl Flags we want to pass to every OCaml compiler call.
+OCAML_WARN_ERROR="-warn-error CDEFLMPSUVYZX-3"
+AC_SUBST([OCAML_WARN_ERROR])
+OCAML_FLAGS="-g -annot"
+AC_SUBST([OCAML_FLAGS])
diff --git a/m4/guestfs_perl.m4 b/m4/guestfs_perl.m4
new file mode 100644
index 0000000..1306dd2
--- /dev/null
+++ b/m4/guestfs_perl.m4
@@ -0,0 +1,41 @@
+# libguestfs
+# Copyright (C) 2009-2015 Red Hat Inc.
+#
+# 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, write to the Free Software
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+
+dnl Check for Perl (optional, for Perl bindings and Perl tools).
+AC_ARG_ENABLE([perl],
+    AS_HELP_STRING([--disable-perl], [disable Perl language bindings]),
+    [],
+    [enable_perl=yes])
+AS_IF([test "x$enable_perl" != "xno"],[
+    dnl Check for Perl modules that must be present to compile and
+    dnl test the Perl bindings.
+    missing_perl_modules=no
+    for pm in Test::More Module::Build; do
+        AC_MSG_CHECKING([for $pm])
+        if ! $PERL -M$pm -e1 >&AS_MESSAGE_LOG_FD 2>&1; then
+            AC_MSG_RESULT([no])
+            missing_perl_modules=yes
+        else
+            AC_MSG_RESULT([yes])
+        fi
+    done
+    if test "x$missing_perl_modules" = "xyes"; then
+        AC_MSG_WARN([some Perl modules required to compile or test the Perl bindings are missing])
+    fi
+])
+AM_CONDITIONAL([HAVE_PERL],
+    [test "x$enable_perl" != "xno" && test "x$PERL" != "xno" && test "x$missing_perl_modules" != "xyes"])
diff --git a/m4/guestfs_php.m4 b/m4/guestfs_php.m4
new file mode 100644
index 0000000..e88c6e6
--- /dev/null
+++ b/m4/guestfs_php.m4
@@ -0,0 +1,29 @@
+# libguestfs
+# Copyright (C) 2009-2015 Red Hat Inc.
+#
+# 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, write to the Free Software
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+
+dnl PHP
+PHP=no
+AC_ARG_ENABLE([php],
+    AS_HELP_STRING([--disable-php], [disable PHP language bindings]),
+    [],
+    [enable_php=yes])
+AS_IF([test "x$enable_php" != "xno"],[
+    PHP=
+    AC_CHECK_PROG([PHP],[php],[php],[no])
+    AC_CHECK_PROG([PHPIZE],[phpize],[phpize],[no])
+])
+AM_CONDITIONAL([HAVE_PHP], [test "x$PHP" != "xno" && test "x$PHPIZE" != "xno"])
diff --git a/m4/guestfs_python.m4 b/m4/guestfs_python.m4
new file mode 100644
index 0000000..3869905
--- /dev/null
+++ b/m4/guestfs_python.m4
@@ -0,0 +1,104 @@
+# libguestfs
+# Copyright (C) 2009-2015 Red Hat Inc.
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+
+dnl Check for Python (optional, for Python bindings).
+PYTHON_PREFIX=
+PYTHON_VERSION=
+PYTHON_INSTALLDIR=
+
+AC_ARG_ENABLE([python],
+    AS_HELP_STRING([--disable-python], [disable Python language bindings]),
+    [],
+    [enable_python=yes])
+AS_IF([test "x$enable_python" != "xno"],[
+    AC_CHECK_PROG([PYTHON],[python],[python],[no])
+
+    if test "x$PYTHON" != "xno"; then
+	AC_MSG_CHECKING([Python version])
+        PYTHON_VERSION_MAJOR=`$PYTHON -c "import sys; print (sys.version_info@<:@0@:>@)"`
+        PYTHON_VERSION_MINOR=`$PYTHON -c "import sys; print (sys.version_info@<:@1@:>@)"`
+        PYTHON_VERSION="$PYTHON_VERSION_MAJOR.$PYTHON_VERSION_MINOR"
+	AC_MSG_RESULT([$PYTHON_VERSION])
+        # Debian: python-2.7.pc, python-3.2.pc
+        PKG_CHECK_MODULES([PYTHON], [python-"$PYTHON_VERSION"],[
+            AC_SUBST([PYTHON_CFLAGS])
+            AC_SUBST([PYTHON_LIBS])
+            AC_SUBST([PYTHON_VERSION])
+            AC_DEFINE([HAVE_PYTHON],[1],[Python library found at compile time])
+        ],[
+            PKG_CHECK_MODULES([PYTHON], [python],[
+                AC_SUBST([PYTHON_CFLAGS])
+                AC_SUBST([PYTHON_LIBS])
+                AC_SUBST([PYTHON_VERSION])
+                AC_DEFINE([HAVE_PYTHON],[1],[Python library found at compile time])
+            ],[
+                AC_MSG_WARN([python $PYTHON_VERSION not found])
+            ])
+        ])
+        AC_MSG_CHECKING([Python prefix])
+        PYTHON_PREFIX=`$PYTHON -c "import sys; print (sys.prefix)"`
+        AC_MSG_RESULT([$PYTHON_PREFIX])
+
+        AC_ARG_WITH([python-installdir],
+                    [AS_HELP_STRING([--with-python-installdir],
+	                [directory to install python modules @<:@default=check@:>@])],
+			[PYTHON_INSTALLDIR="$withval"
+	                 AC_MSG_NOTICE([Python install dir $PYTHON_INSTALLDIR])],
+			[PYTHON_INSTALLDIR=check])
+
+        if test "x$PYTHON_INSTALLDIR" = "xcheck"; then
+	    PYTHON_INSTALLDIR=
+            AC_MSG_CHECKING([for Python site-packages path])
+            if test -z "$PYTHON_INSTALLDIR"; then
+                PYTHON_INSTALLDIR=`$PYTHON -c "import distutils.sysconfig; \
+                                               print (distutils.sysconfig.get_python_lib(1,0));"`
+            fi
+            AC_MSG_RESULT([$PYTHON_INSTALLDIR])
+        fi
+
+        AC_MSG_CHECKING([for Python extension suffix (PEP-3149)])
+        if test -z "$PYTHON_EXT_SUFFIX"; then
+            python_ext_suffix=`$PYTHON -c "import distutils.sysconfig; \
+                                         print (distutils.sysconfig.get_config_var('EXT_SUFFIX') or distutils.sysconfig.get_config_var('SO'))"`
+            PYTHON_EXT_SUFFIX=$python_ext_suffix
+        fi
+        AC_MSG_RESULT([$PYTHON_EXT_SUFFIX])
+
+        dnl Look for some optional symbols in libpython.
+        old_LIBS="$LIBS"
+
+        PYTHON_BLDLIBRARY=`$PYTHON -c "import distutils.sysconfig; \
+                                       print (distutils.sysconfig.get_config_var('BLDLIBRARY'))"`
+        AC_CHECK_LIB([c],[PyCapsule_New],
+                     [AC_DEFINE([HAVE_PYCAPSULE_NEW],1,
+                                [Found PyCapsule_New in libpython.])],
+                     [],[$PYTHON_BLDLIBRARY])
+        AC_CHECK_LIB([c],[PyString_AsString],
+                     [AC_DEFINE([HAVE_PYSTRING_ASSTRING],1,
+                                [Found PyString_AsString in libpython.])],
+                     [],[$PYTHON_BLDLIBRARY])
+
+        LIBS="$old_LIBS"
+    fi
+
+    AC_SUBST(PYTHON_PREFIX)
+    AC_SUBST(PYTHON_VERSION)
+    AC_SUBST(PYTHON_INSTALLDIR)
+    AC_SUBST(PYTHON_EXT_SUFFIX)
+])
+AM_CONDITIONAL([HAVE_PYTHON],
+    [test "x$PYTHON" != "xno" && test "x$PYTHON_LIBS" != "x" ])
diff --git a/m4/guestfs_ruby.m4 b/m4/guestfs_ruby.m4
new file mode 100644
index 0000000..9b22b95
--- /dev/null
+++ b/m4/guestfs_ruby.m4
@@ -0,0 +1,51 @@
+# libguestfs
+# Copyright (C) 2009-2015 Red Hat Inc.
+#
+# 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, write to the Free Software
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+
+dnl Check for Ruby and rake (optional, for Ruby bindings).
+AC_ARG_ENABLE([ruby],
+    AS_HELP_STRING([--disable-ruby], [disable Ruby language bindings]),
+    [],
+    [enable_ruby=yes])
+AS_IF([test "x$enable_ruby" != "xno"],[
+    AC_CHECK_PROG([RUBY],[ruby],[ruby],[no])
+    AC_CHECK_PROG([RAKE],[rake],[rake],[no])
+
+    AS_IF([test -n "$RUBY" && test -n "$RAKE"],[
+        dnl Find the library.  Note on Debian it's not -lruby.
+        AC_MSG_CHECKING([for C library for Ruby extensions])
+        ruby_cmd='puts RbConfig::CONFIG@<:@"RUBY_SO_NAME"@:>@'
+        echo running: $RUBY -rrbconfig -e \'$ruby_cmd\' >&AS_MESSAGE_LOG_FD
+        $RUBY -rrbconfig -e "$ruby_cmd" >conftest 2>&AS_MESSAGE_LOG_FD
+        libruby="$(cat conftest)"
+        rm conftest
+        AS_IF([test -n "$libruby"],[
+            ruby_cmd='puts RbConfig::CONFIG@<:@"libdir"@:>@'
+            echo running: $RUBY -rrbconfig -e \'$ruby_cmd\' >&AS_MESSAGE_LOG_FD
+            $RUBY -rrbconfig -e "$ruby_cmd" >conftest 2>&AS_MESSAGE_LOG_FD
+            libruby_libdir="$(cat conftest)"
+            rm conftest
+            test -n "$libruby_libdir" && libruby_libdir="-L$libruby_libdir"
+            AC_MSG_RESULT([-l$libruby])
+            AC_CHECK_LIB([$libruby],[ruby_init],
+                         [have_libruby=1],[have_libruby=],[$libruby_libdir])
+        ],[
+            AC_MSG_RESULT([not found])
+        ])
+    ])
+])
+AM_CONDITIONAL([HAVE_RUBY],
+    [test -n "$RUBY" && test -n "$RAKE" && test -n "$have_libruby"])
-- 
2.5.0


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