speex: fix target install

Use install-strip and clean up documentation files instead of
install-exec so files get stripped and manpages installed if
requested.

package/speex/speex.mk

@@ -9,6 +9,7 @@ SPEEX_SITE=http://downloads.us.xiph.org/releases/speex
 SPEEX_AUTORECONF = NO
 SPEEX_INSTALL_STAGING = YES
 SPEEX_INSTALL_TARGET = YES
+SPEEX_INSTALL_TARGET_OPT:=DESTDIR=$(TARGET_DIR) install-strip
 SPEEX_DEPENDENCIES = libogg
 SPEEX_CONF_OPT = --with-ogg-libraries=$(STAGING_DIR)/usr/lib --with-ogg-includes=$(STAGING_DIR)/usr/include \
 		--disable-static --enable-fixed-point $(DISABLE_NLS)
@@ -25,3 +26,7 @@ $(SPEEX_TARGET_BUILD): $(SPEEX_TARGET_CONFIGURE)
 	$(SED) 's|^runpath_var=LD_RUN_PATH|runpath_var=DIE_RPATH_DIE|g' $(SPEEX_DIR)/libtool
 	$($(PKG)_MAKE_ENV) $(MAKE) $($(PKG)_MAKE_OPT) -C $(@D)/$($(PKG)_SUBDIR)
 	$(Q)touch $@
+
+$(SPEEX_HOOK_POST_INSTALL): $(SPEEX_TARGET_INSTALL_TARGET)
+	rm -rf $(TARGET_DIR)/usr/share/doc/speex $(TARGET_DIR)/usr/share/aclocal
+	touch $@