Add upstream patches to fix cc plugin.

0001-cc-Add-fPIC-shared-to-DCFLAGS-rather-than-in-the-plu.patch

@@ -0,0 +1,48 @@
+From 1271945aa9144090f9c74c1915c4c1d431344df3 Mon Sep 17 00:00:00 2001
+From: "Richard W.M. Jones" <rjones@redhat.com>
+Date: Thu, 4 Jun 2020 14:13:46 +0100
+Subject: [PATCH 1/2] cc: Add -fPIC -shared to -DCFLAGS rather than in the
+ plugin.
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+This fixes the output of ‘nbdkit cc --dump-plugin’ so it matches the
+documentation, and it's slightly cleaner than doing this munging in
+the cc plugin source code.
+
+Fixes: commit a4339e3c3c17d8b95ddf0b20cf015de5078620ec
+---
+ plugins/cc/Makefile.am | 2 +-
+ plugins/cc/cc.c        | 2 +-
+ 2 files changed, 2 insertions(+), 2 deletions(-)
+
+diff --git a/plugins/cc/Makefile.am b/plugins/cc/Makefile.am
+index 6b02e891..d7e709f8 100644
+--- a/plugins/cc/Makefile.am
++++ b/plugins/cc/Makefile.am
+@@ -42,7 +42,7 @@ nbdkit_cc_plugin_la_SOURCES = \
+ 
+ nbdkit_cc_plugin_la_CPPFLAGS = \
+ 	-DCC="\"$(CC)\"" \
+-	-DCFLAGS="\"$(CFLAGS)\"" \
++	-DCFLAGS="\"$(CFLAGS) -fPIC -shared\"" \
+ 	-I$(top_srcdir)/common/utils \
+ 	-I$(top_srcdir)/include \
+ 	-I. \
+diff --git a/plugins/cc/cc.c b/plugins/cc/cc.c
+index 2139cf62..e55c5e76 100644
+--- a/plugins/cc/cc.c
++++ b/plugins/cc/cc.c
+@@ -53,7 +53,7 @@ static bool unlink_on_exit = false;
+ 
+ /* C compiler and flags. */
+ static const char *cc = CC;
+-static const char *cflags = CFLAGS " -fPIC -shared";
++static const char *cflags = CFLAGS;
+ static const char *extra_cflags;
+ 
+ /* List of parameters for the subplugin. */
+-- 
+2.25.0
+

0002-cc-Run-test-against-local-nbdkit-plugin.h-not-instal.patch

@@ -0,0 +1,49 @@
+From 28e66a6f4999ed7edf51ca268d6831f3d11dcb2e Mon Sep 17 00:00:00 2001
+From: "Richard W.M. Jones" <rjones@redhat.com>
+Date: Thu, 4 Jun 2020 14:28:51 +0100
+Subject: [PATCH 2/2] cc: Run test against local <nbdkit-plugin.h>, not
+ installed.
+
+The problem was revealed when trying to compile nbdkit 1.21.7 in
+Fedora Koji.
+
+Fixes: commit a4339e3c3c17d8b95ddf0b20cf015de5078620ec
+---
+ plugins/cc/nbdkit-cc-plugin.pod | 5 +++--
+ tests/test-shebang-cc.sh        | 1 +
+ 2 files changed, 4 insertions(+), 2 deletions(-)
+
+diff --git a/plugins/cc/nbdkit-cc-plugin.pod b/plugins/cc/nbdkit-cc-plugin.pod
+index c8ef3950..ecd7a81e 100644
+--- a/plugins/cc/nbdkit-cc-plugin.pod
++++ b/plugins/cc/nbdkit-cc-plugin.pod
+@@ -27,11 +27,12 @@ L<nbdkit-plugin(3)>.
+ Simple plugins from the nbdkit source tree can be compiled and run
+ directly using commands such as:
+ 
+- $ nbdkit cc plugins/example1/example1.c EXTRA_CFLAGS="-I."
++ $ nbdkit cc plugins/example1/example1.c EXTRA_CFLAGS="-I. -Iinclude"
+ 
+ You can also read the source from stdin using C<->:
+ 
+- $ nbdkit cc - EXTRA_CFLAGS="-I." < plugins/example1/example1.c
++ $ nbdkit cc - EXTRA_CFLAGS="-I. -Iinclude" \
++             < plugins/example1/example1.c
+ 
+ To replace the compiler flags:
+ 
+diff --git a/tests/test-shebang-cc.sh b/tests/test-shebang-cc.sh
+index 7f15ebff..83d9815e 100755
+--- a/tests/test-shebang-cc.sh
++++ b/tests/test-shebang-cc.sh
+@@ -45,6 +45,7 @@ fi
+ requires guestfish --version
+ 
+ $script -fv -U - \
++        EXTRA_CFLAGS="-I$SRCDIR/../include" \
+         --run '
+     guestfish \
+         add "" protocol:nbd server:unix:$unixsocket : \
+-- 
+2.25.0
+

nbdkit.spec

@@ -38,7 +38,7 @@ ExclusiveArch:  x86_64
 %global verify_tarball_signature 1
 
 # If there are patches which touch autotools files, set this to 1.
-%global patches_touch_autotools %{nil}
+%global patches_touch_autotools 1
 
 # The source directory.
 %global source_directory 1.21-development
@@ -58,6 +58,10 @@ Source1:        http://libguestfs.org/download/nbdkit/%{source_directory}/%{name
 Source2:       libguestfs.keyring
 %endif
 
+# Upstream patches that fix the cc plugin.
+Patch1:        0001-cc-Add-fPIC-shared-to-DCFLAGS-rather-than-in-the-plu.patch
+Patch2:        0002-cc-Run-test-against-local-nbdkit-plugin.h-not-instal.patch
+
 %if 0%{patches_touch_autotools}
 BuildRequires: autoconf, automake, libtool
 %endif