This patch allows us to make the libgcrypt dependency optional (which it
is, if you look at the code), which in turns allows us to build CRDA
without the signature-checking capability on 'regulatory.bin'.

--- crda/Makefile	2015-07-17 11:33:33.546712893 +0200
+++ crda/Makefile	2015-07-17 11:34:05.210994373 +0200
@@ -45,12 +45,14 @@ LDLIBS += `pkg-config --libs openssl`
 $(LIBREG): keys-ssl.c
 
 else
+ifeq ($(USE_GCRYPT),1)
 CFLAGS += -DUSE_GCRYPT
 LDLIBS += -lgcrypt
 
 $(LIBREG): keys-gcrypt.c
 
 endif
+endif
 MKDIR ?= mkdir -p
 INSTALL ?= install
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<tr><td><span title='2020-01-09 23:33:04 +0100'>2020-01-09</span></td><td><a href='/guix/commit/HACKING?id=2d315cd428484537e763d7f7c676dc5fff7995f6'>doc: Move "Commit Access" section from 'HACKING' to the manual.</a><span class='msg-avail'>...<span class='msg-tooltip'>* HACKING (Commit Access): Remove.
(Contributing): Update URL of the manual.
* doc/contributing.texi (Commit Access): New section.
(Submitting Patches): Add cross reference.
</span></span></td><td>Ludovic Courtès</td></tr>
<tr><td><span title='2020-01-09 23:33:04 +0100'>2020-01-09</span></td><td><a href='/guix/commit/HACKING?id=a7bde77d247ed0765f5378779d67b4668c5d7648'>doc: Add "Tracking Bugs and Patches" section.</a><span class='msg-avail'>...<span class='msg-tooltip'>* doc/contributing.texi (Tracking Bugs and Patches): New section.
(Submitting Patches): Refer to it.
* doc/guix.texi: Update copyright line.
* HACKING (Using emacs-debbugs): Remove.
</span></span></td><td>Ludovic Courtès</td></tr>