perl: Fix build for L4Re

recipes/perl/perl/0001-configure_sigs.sh-Use-less-ambiguous-identifier.patch

@@ -0,0 +1,40 @@
+From eaabd91ea030d52932d2d53d3da17cd0bc03a118 Mon Sep 17 00:00:00 2001
+From: Adam Lackorzynski <[email protected]>
+Date: Fri, 31 Oct 2025 11:51:39 +0100
+Subject: [PATCH] configure_sigs.sh: Use less ambiguous identifier
+
+'number' might be used in the included header file(s) which then defeats
+the grep for the number. Thus use the less ambiguous identifier to avoid
+those type of clashes.
+
+Signed-off-by: Adam Lackorzynski <[email protected]>
+---
+ cnf/configure_sigs.sh | 6 +++---
+ 1 file changed, 3 insertions(+), 3 deletions(-)
+
+diff --git a/cnf/configure_sigs.sh b/cnf/configure_sigs.sh
+index d0d1b46..7c07846 100644
+--- a/cnf/configure_sigs.sh
++++ b/cnf/configure_sigs.sh
+@@ -18,15 +18,15 @@ for sig in HUP INT QUIT ILL TRAP ABRT BUS FPE KILL USR1\
+
+ 	# OH SHI--
+ 	try_add "#if SIG$sig == 0"
+-	try_add "number 0"
++	try_add "perl_cross_configure_sig_number 0"
+ 	for num in `seq 1 100`; do
+ 		try_add "#elif SIG$sig == $num"
+-		try_add "number $num"
++		try_add "perl_cross_configure_sig_number $num"
+ 	done
+ 	try_add "#endif"
+
+ 	if try_preproc; then
+-		num=`grep 'number ' try.out | sed -e 's/[^0-9]//g'`
++		num=`grep 'perl_cross_configure_sig_number ' try.out | sed -e 's/[^0-9]//g'`
+ 		if [ -n "$num" -a "$num" != 0 ]; then
+ 			msg "   got SIG$sig = $num" >&2
+ 			signals="$signals $sig"
+-- 
+2.51.0
+