espeak : depends on MMU

Fixes http://autobuild.buildroot.net/results/dae/dae5c59dfa127e1c3f9e3885cdd1b97e54d8fe41/
and http://autobuild.buildroot.net/results/fa0/fa04a0fe7d7a201c5f733bd798c0da50ffb81271/
espeak uses fork(), don't work on non-MMU platforms

[Peter: indent with tab instead of spaces]
Signed-off-by: Arnaud Aujon <arnaud@intelibre.fr>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

package/espeak/Config.in

@@ -1,11 +1,13 @@
 comment "espeak needs a toolchain w/ C++, wchar, threads"
 	depends on !BR2_TOOLCHAIN_HAS_THREADS || !BR2_INSTALL_LIBSTDCPP || !BR2_USE_WCHAR
+	depends on BR2_USE_MMU
 
 config BR2_PACKAGE_ESPEAK
 	bool "espeak"
 	depends on BR2_INSTALL_LIBSTDCPP
 	depends on BR2_USE_WCHAR
 	depends on BR2_TOOLCHAIN_HAS_THREADS
+	depends on BR2_USE_MMU # fork()
 	help
 	  espeak is a speech synthesizer software for English and
 	  other languages.
@@ -26,14 +28,14 @@ config BR2_PACKAGE_ESPEAK_AUDIO_BACKEND_ALSA
 	select BR2_PACKAGE_PORTAUDIO
 	select BR2_PACKAGE_PORTAUDIO_CXX
 
-comment "pulseaudio backend needs a toolchain with largefile"
-	depends on !BR2_LARGEFILE
-
 config BR2_PACKAGE_ESPEAK_AUDIO_BACKEND_PULSEAUDIO
 	bool "pulseaudio"
 	select BR2_PACKAGE_PULSEAUDIO
 	depends on BR2_LARGEFILE # pulseaudio
 
+comment "pulseaudio backend needs a toolchain with largefile"
+	depends on !BR2_LARGEFILE
+
 endchoice
 
 endif # BR2_PACKAGE_ESPEAK