Merge remote-tracking branch 'remotes/thuth-gitlab/tags/pull-request-2021-06-02' into staging

* Update the references to some doc files (use *.rst instead of *.txt)
* Bump minimum versions of some requirements after removing CentOS 7 support

# gpg: Signature made Wed 02 Jun 2021 08:12:18 BST
# gpg:                using RSA key 27B88847EEE0250118F3EAB92ED9D774FE702DB5
# gpg:                issuer "thuth@redhat.com"
# gpg: Good signature from "Thomas Huth <th.huth@gmx.de>" [full]
# gpg:                 aka "Thomas Huth <thuth@redhat.com>" [full]
# gpg:                 aka "Thomas Huth <huth@tuxfamily.org>" [full]
# gpg:                 aka "Thomas Huth <th.huth@posteo.de>" [unknown]
# Primary key fingerprint: 27B8 8847 EEE0 2501 18F3  EAB9 2ED9 D774 FE70 2DB5

* remotes/thuth-gitlab/tags/pull-request-2021-06-02:
  configure: bump min required CLang to 6.0 / XCode 10.0
  configure: bump min required GCC to 7.5.0
  configure: bump min required glib version to 2.56
  tests/docker: drop CentOS 7 container
  tests/vm: convert centos VM recipe to CentOS 8
  crypto: drop used conditional check
  crypto: bump min gnutls to 3.5.18, dropping RHEL-7 support
  crypto: bump min gcrypt to 1.8.0, dropping RHEL-7 support
  crypto: drop back compatibility typedefs for nettle
  crypto: bump min nettle to 3.4, dropping RHEL-7 support
  patchew: move quick build job from CentOS 7 to CentOS 8 container
  block/ssh: Bump minimum libssh version to 0.8.7
  docs: fix references to docs/devel/s390-dasd-ipl.rst
  docs: fix references to docs/specs/tpm.rst
  docs: fix references to docs/devel/build-system.rst
  docs: fix references to docs/devel/atomics.rst
  docs: fix references to docs/devel/tracing.rst

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

3 files changed, 5 insertions, 14 deletions

diff --git a/include/glib-compat.h b/include/glib-compat.h
index 4542e920d5..9e95c888f5 100644
--- a/include/glib-compat.h
+++ b/include/glib-compat.h
@@ -19,12 +19,12 @@
 /* Ask for warnings for anything that was marked deprecated in
  * the defined version, or before. It is a candidate for rewrite.
  */
-#define GLIB_VERSION_MIN_REQUIRED GLIB_VERSION_2_48
+#define GLIB_VERSION_MIN_REQUIRED GLIB_VERSION_2_56
 
 /* Ask for warnings if code tries to use function that did not
  * exist in the defined version. These risk breaking builds
  */
-#define GLIB_VERSION_MAX_ALLOWED GLIB_VERSION_2_48
+#define GLIB_VERSION_MAX_ALLOWED GLIB_VERSION_2_56
 
 #pragma GCC diagnostic push
 #pragma GCC diagnostic ignored "-Wdeprecated-declarations"
@@ -68,15 +68,6 @@
  * without generating warnings.
  */
 
-#if defined(_WIN32) && !GLIB_CHECK_VERSION(2, 50, 0)
-/*
- * g_poll has a problem on Windows when using
- * timeouts < 10ms, so use wrapper.
- */
-#define g_poll(fds, nfds, timeout) g_poll_fixed(fds, nfds, timeout)
-gint g_poll_fixed(GPollFD *fds, guint nfds, gint timeout);
-#endif
-
 #if defined(G_OS_UNIX)
 /*
  * Note: The fallback implementation is not MT-safe, and it returns a copy of
diff --git a/include/qemu/atomic.h b/include/qemu/atomic.h
index 8f4b3a80fb..3ccf84fd46 100644
--- a/include/qemu/atomic.h
+++ b/include/qemu/atomic.h
@@ -8,7 +8,7 @@
  * This work is licensed under the terms of the GNU GPL, version 2 or later.
  * See the COPYING file in the top-level directory.
  *
- * See docs/devel/atomics.txt for discussion about the guarantees each
+ * See docs/devel/atomics.rst for discussion about the guarantees each
  * atomic primitive is meant to provide.
  */
 
@@ -432,7 +432,7 @@
  * sequentially consistent operations.
  *
  * As long as they are used as paired operations they are safe to
- * use. See docs/devel/atomics.txt for more discussion.
+ * use. See docs/devel/atomics.rst for more discussion.
  */
 
 #ifndef qatomic_mb_read
diff --git a/include/qemu/atomic128.h b/include/qemu/atomic128.h
index ad2bcf45b4..adb9a1a260 100644
--- a/include/qemu/atomic128.h
+++ b/include/qemu/atomic128.h
@@ -6,7 +6,7 @@
  * This work is licensed under the terms of the GNU GPL, version 2 or later.
  * See the COPYING file in the top-level directory.
  *
- * See docs/devel/atomics.txt for discussion about the guarantees each
+ * See docs/devel/atomics.rst for discussion about the guarantees each
  * atomic primitive is meant to provide.
  */