ccache: cleanup configure args and respect BR2_HAVE_MANPAGES

toolchain/ccache/ccache.mk

@@ -149,15 +149,7 @@ $(CCACHE_DIR2)/.configured: $(CCACHE_DIR2)/.patched
 		--host=$(GNU_TARGET_NAME) \
 		--build=$(GNU_HOST_NAME) \
 		--prefix=/usr \
-		--exec-prefix=/usr \
-		--bindir=/usr/bin \
-		--sbindir=/usr/sbin \
-		--libexecdir=/usr/lib \
 		--sysconfdir=/etc \
-		--datadir=/usr/share \
-		--localstatedir=/var \
-		--mandir=/usr/man \
-		--infodir=/usr/info \
 		$(DISABLE_NLS) \
 	)
 	touch $@
@@ -167,8 +159,9 @@ $(CCACHE_DIR2)/$(CCACHE_BINARY): $(CCACHE_DIR2)/.configured
 
 $(TARGET_DIR)/$(CCACHE_TARGET_BINARY): $(CCACHE_DIR2)/$(CCACHE_BINARY)
 	$(MAKE) DESTDIR=$(TARGET_DIR) -C $(CCACHE_DIR2) install
-	rm -rf $(TARGET_DIR)/share/locale $(TARGET_DIR)/usr/info \
-		$(TARGET_DIR)/usr/man $(TARGET_DIR)/usr/share/doc
+ifneq ($(BR2_HAVE_MANPAGES),y)
+	rm -rf $(TARGET_DIR)/usr/man
+endif
 	# put a bunch of symlinks into /bin, since that is earlier
 	# in the default PATH than /usr/bin where gcc lives
 	(cd $(TARGET_DIR)/bin; \