From b93ad6183ee5479178296ff9ec2db23774e6db03 Mon Sep 17 00:00:00 2001
From: Xavier Del Campo Romero <xavi92@disroot.org>
Date: Thu, 12 Feb 2026 22:49:27 +0100
Subject: configure: Test libcjson

Otherwise, compilation could fail because libcjson's header files
and/or library cannot be found on the system.

Additionally, -lcjson should not be hardcoded to the ldflags, as this
is better handled by pkg-config(1).
---
 configure | 12 +++++++++++-
 1 file changed, 11 insertions(+), 1 deletion(-)

diff --git a/configure b/configure
index 79dcc1a..80518fa 100755
--- a/configure
+++ b/configure
@@ -7,7 +7,7 @@ prefix=$default_prefix
 default_CC='c99'
 # FILE_OFFSET_BITS=64 is required for large file support on 32-bit platforms.
 default_CFLAGS='-O1 -g -D_FILE_OFFSET_BITS=64 -Wall -MD'
-default_LDFLAGS="-lcjson -lm"
+default_LDFLAGS="-lm"
 
 CC=${CC:-$default_CC}
 CFLAGS=${CFLAGS:-"$default_CFLAGS $default_NPCFLAGS"}
@@ -62,6 +62,16 @@ else
 	exit 1
 fi
 
+if pkg-config libcjson
+then
+	CFLAGS="$CFLAGS $(pkg-config --cflags libcjson)"
+	LDFLAGS="$LDFLAGS $(pkg-config --libs libcjson)"
+	USERGEN_LDFLAGS="$USERGEN_LDFLAGS $(pkg-config --libs libcjson)"
+else
+	echo "Error: libcjson not found." >&2
+	exit 1
+fi
+
 if pkg-config dynstr
 then
 	in_tree_dynstr=0
-- 
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