On 1/2/26 12:27 AM, Craig Small via Net-snmp-coders wrote:
On Fri, 2 Jan 2026, 12:47 pm Magnus Fromreide, <[email protected]
<mailto:[email protected]>> wrote:
I am stronly agreeing and wants to go further - I think all dialect
options
should be removed from the net-snmp-config output, so no more
-g
-fno-strict-aliasing
-O2
as that should be the the choice of the client program, not us.
I would like that very much. As an example of the issue adding those
options causes, syslog-ng failed to compile with 5.9.5.2 but compiled ok.
What happens is one of the options triggered a compile error in the
syslog-ng code itself because a previous warning was now an error.
So changing the version of net-snmp a program links to caused an error
so it wouldn't compile; but not due to an API change.
How about realizing this with the patch below?
Thanks,
Bart.
diff --git a/net-snmp-config.in b/net-snmp-config.in
index c6005fe45a20..3e6453a8adc3 100644
--- a/net-snmp-config.in
+++ b/net-snmp-config.in
@@ -27,6 +27,22 @@ check_build_dir()
fi
}
+filter_cflags()
+{
+ read -r all_cflags
+ for cflag in ${all_cflags}; do
+ case "$cflag" in
+ -fsanitize*)
+ echo -n "$cflag ";;
+ -f*|-g*|-O*|-pipe|-W*|-I.)
+ ;;
+ *)
+ echo -n "$cflag ";;
+ esac
+ done
+ echo
+}
+
# usage: index n arguments
# effect: returns the (n+1)th argument
index()
@@ -143,10 +159,11 @@ else
;;
#################################################### compile
--base-cflags)
- echo @CFLAGS@ @CPPFLAGS@ -I${NSC_INCLUDEDIR}
+ echo @CFLAGS@ @CPPFLAGS@ -I${NSC_INCLUDEDIR} | filter_cflags
;;
--cflags|--cf*)
- echo @CFLAGS@ @DEVFLAGS@ @CPPFLAGS@ -I. -I${NSC_INCLUDEDIR}
+ echo @CFLAGS@ @DEVFLAGS@ @CPPFLAGS@ -I. -I${NSC_INCLUDEDIR} |
+ filter_cflags
;;
--srcdir)
echo $NSC_SRCDIR
@@ -188,7 +205,7 @@ else
echo $result
;;
--build-command)
- echo "@CC@ @CFLAGS@ @DEVFLAGS@ @CPPFLAGS@"
+ echo "@CC@ @CFLAGS@ @DEVFLAGS@ @CPPFLAGS@" | filter_cflags
;;
#################################################### client lib
--libs)
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