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[PATCH for-9.1 4/9] Bump minimum glib version to v2.66


From: Thomas Huth
Subject: [PATCH for-9.1 4/9] Bump minimum glib version to v2.66
Date: Thu, 28 Mar 2024 15:06:01 +0100

Now that we dropped support for CentOS 8 and Ubuntu 20.04, we can
look into bumping the glib version to a new minimum for further
clean-ups. According to repology.org, available versions are:

 CentOS Stream 9:       2.66.7
 Debian 11:             2.66.8
 Fedora 38:             2.74.1
 Freebsd:               2.78.4
 Homebrew:              2.80.0
 Openbsd:               2.78.4
 OpenSuse leap 15.5:    2.70.5
 pkgsrc_current:        2.78.4
 Ubuntu 22.04:          2.72.1

Thus it should be safe to bump the minimum glib version to 2.66 now.
Version 2.66 comes with new functions for URI parsing which will
allow further clean-ups in the following patches.

Signed-off-by: Thomas Huth <thuth@redhat.com>
---
 meson.build              | 16 +---------------
 include/glib-compat.h    | 27 ++-------------------------
 qga/commands-posix-ssh.c |  4 ++--
 3 files changed, 5 insertions(+), 42 deletions(-)

diff --git a/meson.build b/meson.build
index c9c3217ba4..c0aaceffc0 100644
--- a/meson.build
+++ b/meson.build
@@ -865,7 +865,7 @@ have_xen_pci_passthrough = 
get_option('xen_pci_passthrough') \
 
 # When bumping glib minimum version, please check also whether to increase
 # the _WIN32_WINNT setting in osdep.h according to the value from glib
-glib_req_ver = '>=2.56.0'
+glib_req_ver = '>=2.66.0'
 glib_pc = dependency('glib-2.0', version: glib_req_ver, required: true,
                     method: 'pkg-config')
 glib_cflags = []
@@ -906,20 +906,6 @@ if not cc.compiles('''
         to the right pkg-config files for your build target.''')
 endif
 
-# Silence clang warnings triggered by glib < 2.57.2
-if not cc.compiles('''
-  #include <glib.h>
-  typedef struct Foo {
-    int i;
-  } Foo;
-  static void foo_free(Foo *f)
-  {
-    g_free(f);
-  }
-  G_DEFINE_AUTOPTR_CLEANUP_FUNC(Foo, foo_free)
-  int main(void) { return 0; }''', dependencies: glib_pc, args: 
['-Wunused-function', '-Werror'])
-  glib_cflags += cc.get_supported_arguments('-Wno-unused-function')
-endif
 glib = declare_dependency(dependencies: [glib_pc, gmodule],
                           compile_args: glib_cflags,
                           version: glib_pc.version())
diff --git a/include/glib-compat.h b/include/glib-compat.h
index 43a562974d..86be439ba0 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_56
+#define GLIB_VERSION_MIN_REQUIRED GLIB_VERSION_2_66
 
 /* 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_56
+#define GLIB_VERSION_MAX_ALLOWED GLIB_VERSION_2_66
 
 #pragma GCC diagnostic push
 #pragma GCC diagnostic ignored "-Wdeprecated-declarations"
@@ -105,29 +105,6 @@ static inline gpointer g_memdup2_qemu(gconstpointer mem, 
gsize byte_size)
 }
 #define g_memdup2(m, s) g_memdup2_qemu(m, s)
 
-#if defined(G_OS_UNIX)
-/*
- * Note: The fallback implementation is not MT-safe, and it returns a copy of
- * the libc passwd (must be g_free() after use) but not the content. Because of
- * these important differences the caller must be aware of, it's not #define 
for
- * GLib API substitution.
- */
-static inline struct passwd *
-g_unix_get_passwd_entry_qemu(const gchar *user_name, GError **error)
-{
-#if GLIB_CHECK_VERSION(2, 64, 0)
-    return g_unix_get_passwd_entry(user_name, error);
-#else
-    struct passwd *p = getpwnam(user_name);
-    if (!p) {
-        g_set_error_literal(error, G_UNIX_ERROR, 0, g_strerror(errno));
-        return NULL;
-    }
-    return (struct passwd *)g_memdup(p, sizeof(*p));
-#endif
-}
-#endif /* G_OS_UNIX */
-
 static inline bool
 qemu_g_test_slow(void)
 {
diff --git a/qga/commands-posix-ssh.c b/qga/commands-posix-ssh.c
index 236f80de44..b0e0b1d674 100644
--- a/qga/commands-posix-ssh.c
+++ b/qga/commands-posix-ssh.c
@@ -35,7 +35,7 @@ test_get_passwd_entry(const gchar *user_name, GError **error)
     return p;
 }
 
-#define g_unix_get_passwd_entry_qemu(username, err) \
+#define g_unix_get_passwd_entry(username, err) \
    test_get_passwd_entry(username, err)
 #endif
 
@@ -45,7 +45,7 @@ get_passwd_entry(const char *username, Error **errp)
     g_autoptr(GError) err = NULL;
     struct passwd *p;
 
-    p = g_unix_get_passwd_entry_qemu(username, &err);
+    p = g_unix_get_passwd_entry(username, &err);
     if (p == NULL) {
         error_setg(errp, "failed to lookup user '%s': %s",
                    username, err->message);
-- 
2.44.0




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