mutter/configure.ac
Matthew Allum f360f81f22 2008-05-12 Matthew Allum <mallum@openedhand.com>
* clutter/x11/clutter-x11-texture-pixmap.c:
        * configure.ac:
        * tests/Makefile.am:
        Remove the XComposite dep from Clutter itself, just use
        in test-pixmap (if available)
2008-05-12 16:22:16 +00:00

635 lines
20 KiB
Plaintext

# clutter package version number, (as distinct from shared library version)
# An odd micro number indicates in-progress development, (eg. from CVS)
# An even micro number indicates a released version.
m4_define([clutter_major_version], [0])
m4_define([clutter_minor_version], [7])
m4_define([clutter_micro_version], [1])
m4_define([clutter_version],
[clutter_major_version.clutter_minor_version.clutter_micro_version])
m4_define([clutter_api_version],
[clutter_major_version.clutter_minor_version])
# increase the interface age for each release; if the API changes, set to 0
m4_define([clutter_interface_age], [0])
m4_define([clutter_binary_age],
[m4_eval(100 * clutter_minor_version + clutter_micro_version)])
AC_PREREQ(2.53)
AC_INIT([clutter],
[clutter_version],
[http://bugzilla.o-hand.com/enter_bug.cgi?product=Clutter])
AC_CONFIG_SRCDIR([clutter/clutter.h])
AM_CONFIG_HEADER([config.h])
AM_INIT_AUTOMAKE([1.9])
CLUTTER_MAJOR_VERSION=clutter_major_version
CLUTTER_MINOR_VERSION=clutter_minor_version
CLUTTER_MICRO_VERSION=clutter_micro_version
CLUTTER_VERSION=clutter_version
CLUTTER_API_VERSION=clutter_api_version
CLUTTER_MAJORMINOR=clutter_api_version
AC_SUBST(CLUTTER_MAJOR_VERSION)
AC_SUBST(CLUTTER_MINOR_VERSION)
AC_SUBST(CLUTTER_MICRO_VERSION)
AC_SUBST(CLUTTER_VERSION)
AC_SUBST(CLUTTER_API_VERSION)
AC_SUBST(CLUTTER_MAJORMINOR)
m4_define([lt_current],
[m4_eval(100 * clutter_minor_version + clutter_micro_version - clutter_interface_age)])
m4_define([lt_revision], [clutter_interface_age])
m4_define([lt_age], [m4_eval(clutter_binary_age - clutter_interface_age)])
CLUTTER_LT_CURRENT=lt_current
CLUTTER_LT_REV=lt_revision
CLUTTER_LT_AGE=lt_age
CLUTTER_LT_VERSION="$CLUTTER_LT_CURRENT:$CLUTTER_LT_REV:$CLUTTER_LT_AGE"
CLUTTER_LT_LDFLAGS="-version-info $CLUTTER_LT_VERSION"
AC_SUBST(CLUTTER_LT_VERSION)
AC_SUBST(CLUTTER_LT_LDFLAGS)
dnl ========================================================================
# Checks for programs.
AC_PROG_CC
#_AM_DEPENDENCIES([OBJC])
#AC_PROG_OBJC
AC_DISABLE_STATIC
AC_PROG_LIBTOOL
# Make libtool respect the make -s switch (kudos to jacob berman)
changequote(,)dnl
LIBTOOL="${LIBTOOL} \$(shell echo \"\$(MFLAGS)\" | awk '/^[^ ]*s/ { print \"--silent\" }')"
changequote([,])dnl
# Checks for header files.
AC_HEADER_STDC
AC_CHECK_HEADERS([fcntl.h stdlib.h string.h unistd.h])
# Checks for typedefs, structures, and compiler characteristics.
AC_C_CONST
# Checks for library functions.
AC_FUNC_MALLOC
AC_FUNC_MMAP
AC_CHECK_FUNCS([memset munmap strcasecmp strdup])
dnl ========================================================================
imagebackend="gdk-pixbuf"
AC_ARG_WITH([imagebackend],
AC_HELP_STRING([--with-imagebackend=@<:@gdk-pixbuf/internal@:>@],
[Select COGL image loading backend]),
imagebackend=$with_imagebackend)
case $imagebackend in
gdk-pixbuf)
AC_DEFINE([USE_GDKPIXBUF], 1, [Use GdkPixbuf for loading image files])
;;
internal)
;;
esac
dnl ========================================================================
backendextra=
backendextralib=
glesversion=1.1
clutterbackend=glx
AC_ARG_WITH([flavour],
AC_HELP_STRING([--with-flavour=@<:@glx/eglx/eglnative/sdl/osx@:>@],
[Select the Clutter backend]),
clutterbackend=$with_flavour)
AC_ARG_WITH([gles],
AC_HELP_STRING([--with-gles=@1.1/2.0@:>@],
[Select Clutter GLES version (for EGL backends)]),
glesversion=$with_gles)
if test "x$clutterbackend" = "xfruity"
then
if test "x$glesversion" != "x1.1"; then
AC_MSG_ERROR([Fruity backend only supports GL ES 1.1.]);
fi
glesversion="fruity"
fi
BACKEND_PC_FILES=""
# Check for X though could be redundant if backend does not need it.
PKG_CHECK_MODULES(X11, x11, [have_x11=yes], [have_x11=no])
if test x$have_x11 = xno; then
AC_PATH_X
if test x"$no_x" = "yes" ; then
if test "x$clutterbackend" = "xglx" or "x$clutterbackend" = "xeglx"
then
AC_MSG_ERROR([[No X11 Libraries found and required by backend.]])
fi
fi
if test x"$x_includes" != x"NONE" && test -n "$x_includes" ; then
X11_CFLAGS=-I`echo $x_includes | sed -e "s/:/ -I/g"`
fi
if test x"$x_libraries" != x"NONE" && test -n "$x_libraries" ; then
X11_LIBS=-L`echo $x_libraries | sed -e "s/:/ -L/g"`
fi
fi
PKG_CHECK_MODULES(XFIXES, xfixes >= 3, [have_xfixes=yes], [have_xfixes=no])
if test x$have_xfixes = xyes; then
AC_DEFINE(HAVE_XFIXES, 1, [Have the XFIXES X extension])
X11_LIBS="$X11_LIBS -lXfixes"
fi
PKG_CHECK_MODULES(XDAMAGE, xdamage, [have_xdamage=yes], [have_xdamage=no])
if test x$have_xdamage = xyes; then
AC_DEFINE(HAVE_XDAMAGE, 1, [Have the XDAMAGE X extension])
X11_LIBS="$X11_LIBS -lXdamage"
fi
# Composite 0.4 just needed for tests
PKG_CHECK_MODULES(XCOMPOSITE, xcomposite >= 0.4, [have_xcomposite=yes], [have_xcomposite=no])
if test x$have_xcomposite = xyes; then
AC_DEFINE(HAVE_XCOMPOSITE, 1, [Have the XCOMPOSITE X extension])
fi
x11_tests=no
# Currently require all extentions, may not for actual release.
if test "x$clutterbackend" = "xglx" || test "x$clutterbackend" = "xeglx"
then
if test "x$have_xdamage" = "xno" || test "x$have_xfixes" = "xno"
then
AC_MSG_ERROR([[Required backend X11 Libraries not found.]])
fi
if test "x$have_xcomposite" = "xyes"
then
x11_tests=yes
fi
fi
AM_CONDITIONAL(X11_TESTS, test "x$x11_tests" != "xno")
clutter_gl_header=""
if test "x$clutterbackend" = "xeglnative" || test "x$clutterbackend" = "xeglx" || test "x$clutterbackend" = "xfruity"
then
case $glesversion in
1*)
clutter_gl_header="GLES/gl.h"
CLUTTER_COGL="gles"
AC_DEFINE([HAVE_COGL_GLES], 1, [Have GL/ES for rendering])
AC_CHECK_HEADERS([GLES/egl.h],,
[AC_MSG_ERROR([Unable to locate required GLES headers])])
AC_CHECK_HEADERS([$clutter_gl_header],,
[AC_MSG_ERROR([Unable to locate required GLES headers])])
# check for upper/lower case libgles_em
# The powervr sdk uses lower case.
AC_CHECK_LIB(GLES_CM, eglInitialize, HAVE_LIBGLES=yes, HAVE_LIBGLES=no)
if test "x$HAVE_LIBGLES" = "xno"; then
AC_CHECK_LIB(GLESv1_CM, eglInitialize, HAVE_LIBGLES=yes, HAVE_LIBGLES=no)
if test "x$HAVE_LIBGLES" = "xno"; then
AC_CHECK_LIB(gles_cm, eglInitialize, HAVE_LIBGLES=yes, HAVE_LIBGLES=no)
if test "x$HAVE_LIBGLES" = "xno"; then
AC_MSG_ERROR([GLES library not found and egl backend requested.]);
else
GLES_LIBS="-lgles_cm"
fi
else
GLES_LIBS="-lGLESv1_CM"
fi
else
GLES_LIBS="-lGLES_CM"
fi
;;
2*)
clutter_gl_header="GLES2/gl2.h"
CLUTTER_COGL="gles"
AC_DEFINE([HAVE_COGL_GLES2], 1, [Have GL/ES for rendering])
AC_CHECK_HEADERS([EGL/egl.h],,
[AC_MSG_ERROR([Unable to locate required GLES headers])])
AC_CHECK_HEADERS([$clutter_gl_header],,
[AC_MSG_ERROR([Unable to locate required GLES headers])])
GLES_LIBS="-lGLESv2 -lEGL"
;;
fruity)
CLUTTER_COGL="gles"
AC_DEFINE([HAVE_COGL_GLES], 1, [Have GL/ES for rendering])
;;
*) AC_MSG_ERROR([Invalid GL ES Version '$glesversion' specified])
;;
esac
fi
case $clutterbackend in
sdl)
clutter_gl_header="GL/gl.h"
CLUTTER_FLAVOUR="sdl"
CLUTTER_STAGE_TYPE="CLUTTER_TYPE_STAGE_SDL"
AC_DEFINE([HAVE_CLUTTER_SDL], 1, [Have the SDL backend])
CLUTTER_COGL="gl"
AC_DEFINE([HAVE_COGL_GL], 1, [Have GL for rendering])
AC_PATH_PROG(SDL_CONFIG, sdl-config)
if test "x$SDL_CONFIG" = "x"; then
AC_MSG_ERROR([[No sdl-config binary found in path and SDL flavour requested.]])
else
SDL_CFLAGS=`$SDL_CONFIG --cflags`
SDL_LIBS=`$SDL_CONFIG --libs`
AC_CHECK_HEADERS([$clutter_gl_header],,
[AC_MSG_ERROR([Unable to locate required GL headers])])
dnl Use GLee under Windows instead of GL
case "$host" in
*mingw32*)
AC_CHECK_LIB(GLee, GLeeInit, HAVE_LIBGLEE=yes, HAVE_LIBGLEE=no, -lopengl32)
if test "x$HAVE_LIBGLEE" = "xno"; then
AC_MSG_ERROR([libGLee not found]);
fi
SDL_LIBS="$SDL_LIBS -lGLee -lopengl32"
CLUTTER_LT_LDFLAGS="$CLUTTER_LT_LDFLAGS -no-undefined"
;;
*)
AC_CHECK_LIB(GL, glEnable, HAVE_LIBGL=yes, HAVE_LIBGL=no)
if test "x$HAVE_LIBGL" = "xno"; then
AC_MSG_ERROR([libGL not found]);
fi
SDL_LIBS="$SDL_LIBS -lGL"
;;
esac
fi
;;
glx)
clutter_gl_header="GL/gl.h"
CLUTTER_FLAVOUR="glx"
CLUTTER_STAGE_TYPE="CLUTTER_TYPE_STAGE_GLX"
AC_DEFINE([HAVE_CLUTTER_GLX], 1, [Have the GLX backend])
CLUTTER_COGL="gl"
AC_DEFINE([HAVE_COGL_GL], 1, [Have GL for rendering])
AC_CHECK_HEADERS([$clutter_gl_header],,
[AC_MSG_ERROR([Unable to locate required GL headers])])
AC_CHECK_HEADERS([GL/glx.h],,
[AC_MSG_ERROR([Unable to locate required GLX headers])])
AC_CHECK_LIB(GL, glXCreateContext, HAVE_LIBGLX=yes, HAVE_LIBGLX=no)
if test "x$HAVE_LIBGLX" = "xno"; then
AC_MSG_ERROR([GLX not found and GLX backend requested]);
fi
if test "x$imagebackend" = "xgdk-pixbuf"; then
# xlib pixbuf needed for exporting the stage
BACKEND_PC_FILES="gdk-pixbuf-xlib-2.0"
fi
GLX_LIBS="$X11_LIBS -lGL"
GLX_CFLAGS="$X11_CFLAGS"
backendextra=x11
backendextralib="x11/libclutter-x11.la"
;;
eglx)
CLUTTER_FLAVOUR="eglx"
CLUTTER_STAGE_TYPE="CLUTTER_TYPE_STAGE_EGL"
AC_DEFINE([HAVE_CLUTTER_EGL], 1, [Have the EGL backend])
EGL_LIBS="$GLES_LIBS $X11_LIBS"
EGL_CFLAGS="$GLES_CFLAGS $X11_CFLAGS"
backendextra=x11
backendextralib="x11/libclutter-x11.la"
;;
eglnative)
CLUTTER_FLAVOUR="eglnative"
CLUTTER_STAGE_TYPE="CLUTTER_TYPE_STAGE_EGLNATIVE"
AC_DEFINE([HAVE_CLUTTER_EGL], 1, [Have the EGL backend])
PKG_CHECK_MODULES(TSLIB, tslib-1.0, [have_tslib=yes], [have_tslib=no])
if test x$have_tslib = xyes; then
AC_DEFINE([HAVE_TSLIB], 1, [Have tslib for touchscreen handling])
fi
EGL_LIBS="$GLES_LIBS $TSLIB_LIBS"
EGL_CFLAGS="$TSLIB_CFLAGS"
;;
fruity)
CLUTTER_FLAVOUR="fruity"
CLUTTER_STAGE_TYPE="CLUTTER_TYPE_STAGE_FRUITY"
AC_DEFINE([HAVE_CLUTTER_FRUITY], 1, [We're building a fruity version of the eglnative backend])
EGL_LIBS="-ObjC -framework Foundation -framework CoreFoundation -framework CoreGraphics -framework CoreSurface -framework GraphicsServices -framework OpenGLES -framework LayerKit -framework UIKit"
EGL_CFLAGS=""
;;
osx)
clutter_gl_header="OpenGL/gl.h"
CLUTTER_FLAVOUR="osx"
CLUTTER_STAGE_TYPE="CLUTTER_TYPE_STAGE_OSX"
AC_DEFINE([HAVE_CLUTTER_OSX], [1], [Have the OSX backend])
CLUTTER_COGL="gl"
AC_DEFINE([HAVE_COGL_GL], [1], [Have GL for rendering])
OSX_LIBS="-framework Cocoa -framework OpenGL"
AC_CHECK_HEADERS([$clutter_gl_header],,
[AC_MSG_ERROR([Unable to locate required GL headers])])
;;
win32)
clutter_gl_header="GL/gl.h"
CLUTTER_FLAVOUR="win32"
CLUTTER_STAGE_TYPE="CLUTTER_TYPE_STAGE_WIN32"
AC_DEFINE([HAVE_CLUTTER_WIN32], 1, [Have the Win32 backend])
CLUTTER_COGL="gl"
AC_DEFINE([HAVE_COGL_GL], 1, [Have GL for rendering])
AC_CHECK_HEADERS([$clutter_gl_header],,
[AC_MSG_ERROR([Unable to locate required GL headers])])
dnl Use GLee under Windows instead of GL
AC_CHECK_LIB(GLee, GLeeInit, HAVE_LIBGLEE=yes, HAVE_LIBGLEE=no, -lopengl32)
if test "x$HAVE_LIBGLEE" = "xno"; then
AC_MSG_ERROR([libGLee not found]);
fi
WIN32_CFLAGS="-D_WIN32_WINNT=0x0500"
WIN32_LIBS="-lGLee -lopengl32 -lgdi32 -lwinmm"
CLUTTER_LT_LDFLAGS="$CLUTTER_LT_LDFLAGS -no-undefined"
;;
*) AC_MSG_ERROR([Invalid backend for Clutter: use glx,sdl,osx,win32,eglx, eglnative or fruity])
;;
esac
CLUTTER_GL_HEADER=$clutter_gl_header
AC_SUBST([clutterbackend])
AC_SUBST([imagebackend])
AC_SUBST([backendextra])
AC_SUBST([backendextralib])
AC_SUBST(CLUTTER_FLAVOUR)
AC_SUBST(CLUTTER_COGL)
AC_SUBST(CLUTTER_GL_HEADER)
AC_SUBST(CLUTTER_STAGE_TYPE)
clutterbackendlib=libclutter$CLUTTER_REAL-$clutterbackend-$CLUTTER_MAJORMINOR.la
AC_SUBST([clutterbackendlib])
dnl ========================================================================
# allow building clutter with an external dependency on json-glib
# using the --with-json=check argument, but keep the default to
# the internal version
AC_ARG_WITH([json],
AC_HELP_STRING([--with-json=@<:@internal/check@:>@],
[Select the JSON-GLib copy to use @<:@default=internal@:>@]),
[],
[with_json=internal])
case $with_json in
internal|check) ;;
*) AC_MSG_ERROR([Invalid value for the JSON library: use internal or check]) ;;
esac
if test "x$with_json" = "xinternal"; then
JSON_PREFIX=json
have_json=no
else
# if the user asked for it and if we have json-glib installed,
# prefer the system library instead of the internal copy
AC_MSG_CHECKING([for installed JSON-GLib])
PKG_CHECK_EXISTS(json-glib-1.0, [have_json=yes], [have_json=no])
if test "x$have_json" = "xyes"; then
JSON_PREFIX=json-glib
JSON_GLIB_PC=json-glib-1.0
AC_DEFINE(HAVE_JSON_GLIB, 1, [Have the JSON-GLib library installed])
AC_MSG_RESULT([found])
else
JSON_PREFIX=json
AC_MSG_RESULT([not found, using internal copy])
fi
fi
AC_SUBST(JSON_PREFIX)
AM_CONDITIONAL(LOCAL_JSON_GLIB, test "x$have_json" = "xno")
CLUTTER_REQUIRES="pangoft2 glib-2.0 >= 2.14 gobject-2.0 gthread-2.0 gmodule-2.0 $BACKEND_PC_FILES $JSON_GLIB_PC"
if test "x$imagebackend" = "xgdk-pixbuf"; then
CLUTTER_REQUIRES="$CLUTTER_REQUIRES gdk-pixbuf-2.0"
fi
PKG_CHECK_MODULES(CLUTTER_DEPS, [$CLUTTER_REQUIRES])
AC_SUBST(CLUTTER_REQUIRES)
# prefixes for fixing gtk-doc references
GLIB_PREFIX="`$PKG_CONFIG --variable=prefix glib-2.0`"
PANGO_PREFIX="`$PKG_CONFIG --variable=prefix pango`"
GDKPIXBUF_PREFIX="`$PKG_CONFIG --variable=prefix pango`"
AC_SUBST(GLIB_PREFIX)
AC_SUBST(PANGO_PREFIX)
AC_SUBST(GDKPIXBUF_PREFIX)
dnl ========================================================================
if test "x$GCC" = "xyes"; then
GCC_FLAGS="-g -Wall"
fi
dnl = Enable debug level ===================================================
m4_define([debug_default],
m4_if(m4_eval(clutter_minor_version % 2), [1], [yes], [minimum]))
AC_ARG_ENABLE(debug,
AC_HELP_STRING([--enable-debug=@<:@no/minimum/yes@:>@],
[turn on debugging. yes; All glib asserts, checks and runtime clutter verbose messages. minimum; Just glib cast checks and runtime clutter verbose messagaes. no; No glib asserts or checks and no runtime clutter verbose messages. @<:@default=debug_default@:>@]),
,
enable_debug=debug_default)
if test "x$enable_debug" = "xyes"; then
test "$cflags_set" = set || CFLAGS="$CFLAGS -g"
CLUTTER_DEBUG_CFLAGS="-DCLUTTER_ENABLE_DEBUG"
else
if test "x$enable_debug" = "xno"; then
CLUTTER_DEBUG_CFLAGS="-DG_DISABLE_ASSERT -DG_DISABLE_CHECKS -DG_DISABLE_CAST_CHECKS"
else # minimum
CLUTTER_DEBUG_CFLAGS="-DCLUTTER_ENABLE_DEBUG -DG_DISABLE_CAST_CHECKS"
fi
fi
AC_SUBST(CLUTTER_DEBUG_CFLAGS)
dnl = Enable strict compiler flags =========================================
# use strict compiler flags only on development releases
#m4_define([maintainer_flags_default],
# m4_if(m4_eval(clutter_minor_version % 2), [1], [yes], [no]))
m4_define([maintainer_flags_default], [no])
AC_ARG_ENABLE([maintainer-flags],
AC_HELP_STRING([--enable-maintainer-flags=@<:@no/yes@:>@],
[Use strict compiler flags @<:@default=maintainer_flags_default@:>@]),,
enable_maintainer_flags=maintainer_flags_default)
if test "x$enable_maintainer_flags" = "xyes"; then
CPPFLAGS="$CPPFLAGS -Werror -Wall -Wshadow -Wcast-align -Wno-uninitialized"
fi
dnl = GTK Doc check ========================================================
GTK_DOC_CHECK([1.8])
dnl = Manual ===============================================================
AC_ARG_ENABLE(manual,
AC_HELP_STRING([--enable-manual=@<:@no/yes@:>@],
[Build application developers manual. Requires jw and xmlto binaries.]),
enable_manual=$enableval, enable_manual=no)
if test "x$enable_manual" = "xyes"; then
AC_PATH_PROG(JW, jw, no)
if test "x$JW" = "xno"; then
AC_MSG_ERROR(['jw' program needed by the manual not found in path])
fi
AC_PATH_PROG(XMLTO, xmlto, no)
if test "x$XMLTO" = "xno"; then
AC_MSG_ERROR(['xmlto' program needed by the manual not found in path])
fi
fi
AM_CONDITIONAL(ENABLE_MANUAL, test "x$enable_manual" != "xno")
dnl ========================================================================
AC_SUBST(GCC_FLAGS)
CLUTTER_CFLAGS="$SDL_CFLAGS $EGL_CFLAGS $GLX_CFLAGS $OSX_CFLAGS $WIN32_CFLAGS $CLUTTER_DEPS_CFLAGS"
CLUTTER_LIBS="$SDL_LIBS $EGL_LIBS $GLX_LIBS $OSX_LIBS $WIN32_LIBS $CLUTTER_DEPS_LIBS"
AC_SUBST(CLUTTER_CFLAGS)
AC_SUBST(CLUTTER_LIBS)
AC_CONFIG_FILES([
Makefile
clutter/Makefile
clutter/clutter-version.h
clutter/clutter-json.h
clutter/x11/Makefile
clutter/x11/clutter-x11.pc
clutter/glx/Makefile
clutter/eglx/Makefile
clutter/eglnative/Makefile
clutter/fruity/Makefile
clutter/osx/Makefile
clutter/win32/Makefile
clutter/win32/clutter-win32.pc
clutter/sdl/Makefile
clutter/cogl/Makefile
clutter/cogl/common/Makefile
clutter/cogl/cogl.h
clutter/cogl/cogl-defines-gl.h:clutter/cogl/gl/cogl-defines.h.in
clutter/cogl/cogl-defines-gles.h:clutter/cogl/gles/cogl-defines.h.in
clutter/cogl/gl/Makefile
clutter/cogl/gles/Makefile
clutter/json/Makefile
clutter/pango/Makefile
tests/Makefile
doc/Makefile
doc/reference/Makefile
doc/reference/clutter/Makefile
doc/reference/clutter/version.xml
doc/reference/cogl/Makefile
doc/manual/clutter-manual.xml
doc/manual/Makefile
clutter.pc
])
AC_OUTPUT
dnl ========================================================================
echo ""
echo " Clutter $VERSION"
echo " ==================="
echo ""
echo " prefix: ${prefix}"
echo ""
echo " Flavour: ${clutterbackend}/${CLUTTER_COGL}"
echo " GL Headers: ${CLUTTER_GL_HEADER}"
echo " Target library: ${clutterbackendlib}"
echo " Debug level: ${enable_debug}"
echo " Compiler flags: ${CPPFLAGS}"
echo " API Documentation: ${enable_gtk_doc}"
echo " Manual Documentation: ${enable_manual}"
echo ""
# you can add more configuration options or flags that will bring up the
# the experimental/unstable warning summary.
if test "x$imagebackend" = "xinternal"; then
experimental_stuff="$experimental_stuff imagebackend=$imagebackend\n"
fi
if test "x$clutterbackend" = "xfruity"; then
experimental_stuff="$experimental_stuff clutterbackend=$clutterbackend\n"
fi
if test "x$experimental_stuff" != "x"; then
echo ""
echo "☠☠☠☠☠☠☠☠☠☠☠☠☠☠☠☠☠☠☠☠☠☠☠☠☠☠☠☠☠☠☠☠☠☠☠☠☠☠☠☠☠☠☠☠☠☠☠☠☠☠☠☠☠☠☠☠☠☠☠☠☠☠☠☠☠☠☠☠☠☠☠☠☠"
echo " *WARNING*"
echo ""
echo " Experimental features configured, stability of your build either uses"
echo " experimental backends or experimental and unsupported features:"
echo -e " $experimental_stuff"
echo "☠☠☠☠☠☠☠☠☠☠☠☠☠☠☠☠☠☠☠☠☠☠☠☠☠☠☠☠☠☠☠☠☠☠☠☠☠☠☠☠☠☠☠☠☠☠☠☠☠☠☠☠☠☠☠☠☠☠☠☠☠☠☠☠☠☠☠☠☠☠☠☠☠"
echo ""
fi