From cde2fc9a1799fa3bbe120d631966ac1873afc73f Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Du=C5=A1an=20Poizl?= <nou.spiro@gmail.com>
Date: Wed, 31 May 2023 14:56:26 +0200
Subject: [PATCH] Fix "string sub-command REPLACE requires at least four
 arguments"

---
 CMakeLists.txt | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index e505e78..166f62d 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -109,7 +109,9 @@ install(FILES ${CMAKE_CURRENT_BINARY_DIR}/libxisf.pc DESTINATION ${CMAKE_INSTALL
 install(TARGETS XISF LIBRARY DESTINATION ${CMAKE_INSTALL_LIBDIR})
 
 list(JOIN PC_LIBS_REQUIRE ", " PC_REQUIRE_STR2)
-string(REPLACE "lz4" "liblz4" PC_REQUIRE_STR ${PC_REQUIRE_STR2})
+if(NOT PC_REQUIRE_STR2 STREQUAL "")
+    string(REPLACE "lz4" "liblz4" PC_REQUIRE_STR ${PC_REQUIRE_STR2})
+endif()
 list(TRANSFORM PC_LIBS_REQUIRE PREPEND "-l")
 list(JOIN PC_LIBS_REQUIRE " " PC_LIBS_STR)
 configure_file(libxisf.pc.in libxisf.pc @ONLY)