openwrt/tools/lz4/patches/001-add-make-ENABLE_DOCS-configurable.patch

+++ a/programs/Makefile	2022-08-15 15:45:31.000000000 -0700
--- b/programs/Makefile	2022-11-28 16:34:21.315593784 -0800
@@ -66,6 +66,7 @@
 MD2ROFF   = ronn
 MD2ROFF_FLAGS = --roff --warnings --manual="User Commands" --organization="lz4 $(LZ4_VERSION)"
 
+ENABLE_DOCS ?= 1
 
 default: lz4-release
 
@@ -120,6 +121,7 @@
 lz4c32 : $(SRCFILES)
 	$(CC) $(FLAGS) $^ -o $@$(EXT)
 
+ifeq ($(ENABLE_DOCS),1)
 lz4.1: lz4.1.md $(LIBVER_SRC)
 	cat $< | $(MD2ROFF) $(MD2ROFF_FLAGS) | $(SED) -n '/^\.\\\".*/!p' > $@
 
@@ -130,6 +132,7 @@
 
 preview-man: clean-man man
 	man ./lz4.1
+endif
 
 clean:
 ifeq ($(WINBASED),yes)
@@ -172,16 +175,19 @@
 
 install: lz4
 	@echo Installing binaries in $(DESTDIR)$(bindir)
-	$(INSTALL_DIR) $(DESTDIR)$(bindir)/ $(DESTDIR)$(man1dir)/
+	$(INSTALL_DIR) $(DESTDIR)$(bindir)/
 	$(INSTALL_PROGRAM) lz4$(EXT) $(DESTDIR)$(bindir)/lz4$(EXT)
 	$(LN_SF) lz4$(EXT) $(DESTDIR)$(bindir)/lz4c$(EXT)
 	$(LN_SF) lz4$(EXT) $(DESTDIR)$(bindir)/lz4cat$(EXT)
 	$(LN_SF) lz4$(EXT) $(DESTDIR)$(bindir)/unlz4$(EXT)
+ifeq ($(ENABLE_DOCS),1)
 	@echo Installing man pages in $(DESTDIR)$(man1dir)
+	$(INSTALL_DIR) $(DESTDIR)$(man1dir)/
 	$(INSTALL_DATA) lz4.1 $(DESTDIR)$(man1dir)/lz4.1
 	$(LN_SF) lz4.1 $(DESTDIR)$(man1dir)/lz4c.1
 	$(LN_SF) lz4.1 $(DESTDIR)$(man1dir)/lz4cat.1
 	$(LN_SF) lz4.1 $(DESTDIR)$(man1dir)/unlz4.1
+endif
 	@echo lz4 installation completed
 
 uninstall:
@@ -189,10 +195,12 @@
 	$(RM) $(DESTDIR)$(bindir)/unlz4$(EXT)
 	$(RM) $(DESTDIR)$(bindir)/lz4$(EXT)
 	$(RM) $(DESTDIR)$(bindir)/lz4c$(EXT)
+ifeq ($(ENABLE_DOCS),1)
 	$(RM) $(DESTDIR)$(man1dir)/lz4.1
 	$(RM) $(DESTDIR)$(man1dir)/lz4c.1
 	$(RM) $(DESTDIR)$(man1dir)/lz4cat.1
 	$(RM) $(DESTDIR)$(man1dir)/unlz4.1
+endif
 	@echo lz4 programs successfully uninstalled
 
 endif