From: William Lallemand <wlallemand@haproxy.com>
Date: Thu, 13 Dec 2018 13:02:25 +0000 (+0100)
Subject: BUILD: Makefile: Implements the help target
X-Git-Tag: v1.9-dev11~71
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=f1b60f78e0d51bc2ae2da61d1926e39056fa6a8f;p=thirdparty%2Fhaproxy.git

BUILD: Makefile: Implements the help target

Use the header of the Makefile to output the help target.
---

diff --git a/Makefile b/Makefile
index 587bc04867..4e909e36ff 100644
--- a/Makefile
+++ b/Makefile
@@ -966,6 +966,9 @@ LIB_EBTREE = $(EBTREE_DIR)/libebtree.a
 INCLUDES = $(wildcard include/*/*.h ebtree/*.h)
 DEP = $(INCLUDES) .build_opts
 
+help:
+	$(Q)sed -ne "/^[^#]*$$/q;s/^#\(.*\)/\1/p" Makefile
+
 # Used only to force a rebuild if some build options change
 .build_opts: $(shell rm -f .build_opts.new; echo \'$(TARGET) $(BUILD_OPTIONS) $(VERBOSE_CFLAGS)\' > .build_opts.new; if cmp -s .build_opts .build_opts.new; then rm -f .build_opts.new; else mv -f .build_opts.new .build_opts; fi)