package/collectd: fix protoc version check

We need to add a patch fixing the protoc version check in collectd's
configure script, prior to bumping protobuf to a newer version.

Signed-off-by: James Hilliard <james.hilliard1@gmail.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>

package/collectd/0004-configure.ac-fix-protoc-version-check.patch

@@ -0,0 +1,48 @@
+From 77f33d05355b115d3384d94c1c4e36c56ea28b09 Mon Sep 17 00:00:00 2001
+From: James Hilliard <james.hilliard1@gmail.com>
+Date: Wed, 30 Oct 2024 12:45:51 -0600
+Subject: [PATCH] configure.ac: fix protoc version check
+
+The current version check for 3.0.0+ fails to handle cases where
+protoc is above version 3.0.0 but does not start with a 3, for
+example protoc may have a version of 28.1.
+
+To fix this use AX_COMPARE_VERSION to properly compare the version.
+
+Signed-off-by: James Hilliard <james.hilliard1@gmail.com>
+Upstream: https://github.com/collectd/collectd/pull/4332
+---
+ configure.ac | 17 ++++++++++-------
+ 1 file changed, 10 insertions(+), 7 deletions(-)
+
+diff --git a/configure.ac b/configure.ac
+index 86d2378b..1f7a9cdf 100644
+--- a/configure.ac
++++ b/configure.ac
+@@ -4897,13 +4897,16 @@ AC_PATH_PROG([PROTOC], [protoc])
+ have_protoc3="no"
+ if test "x$PROTOC" != "x"; then
+   AC_MSG_CHECKING([for protoc 3.0.0+])
+-  if $PROTOC --version | $EGREP libprotoc.3 >/dev/null; then
+-    protoc3="yes (`$PROTOC --version`)"
+-    have_protoc3="yes"
+-  else
+-    protoc3="no (`$PROTOC --version`)"
+-  fi
+-  AC_MSG_RESULT([$protoc3])
++  AC_SUBST([PROTOC_VERSION], [`$PROTOC --version | cut -d ' ' -f 2`])
++  AX_COMPARE_VERSION([$PROTOC_VERSION],[ge],[3],
++    [
++      have_protoc3="yes"
++      AC_MSG_RESULT([yes ($PROTOC_VERSION)])
++    ],
++    [
++      AC_MSG_RESULT([no ($PROTOC_VERSION)])
++    ]
++  )
+ fi
+ AM_CONDITIONAL([HAVE_PROTOC3], [test "x$have_protoc3" = "xyes"])
+ 
+-- 
+2.34.1
+