From 059edf190897333781d74ec02b1faba6a67c2148 Mon Sep 17 00:00:00 2001
From: Hennadii Stepanov <32963518+hebasto@users.noreply.github.com>
Date: Thu, 11 Jun 2026 10:21:08 +0100
Subject: [PATCH] guix: Fix "Ignoring empty string" CMake warning for non-Linux
 hosts

Using shell parameter expansion ensures that on non-Linux hosts the
build script won't pass an empty string argument to CMake. This resolves
the "Ignoring empty string" warning.
---
 contrib/guix/libexec/build.sh | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/contrib/guix/libexec/build.sh b/contrib/guix/libexec/build.sh
index 0bc3888ac0a..0ec058b8de3 100755
--- a/contrib/guix/libexec/build.sh
+++ b/contrib/guix/libexec/build.sh
@@ -166,7 +166,7 @@ mkdir -p "$DISTSRC"
           -DWITH_CCACHE=OFF \
           -Werror=dev \
           ${CONFIGFLAGS} \
-          "${CMAKE_EXE_LINKER_FLAGS}"
+          ${CMAKE_EXE_LINKER_FLAGS+"$CMAKE_EXE_LINKER_FLAGS"}
 
     # Build Bitcoin Core
     cmake --build build -j "$JOBS"