SDL: The posix4 library has been merged into the libc library

SDL Commits
1 
From 07e4dea6934f84f937e904ef195666011e269473 Mon Sep 17 00:00:00 2001
From: Dragon-Baroque <[EMAIL REDACTED]>
Date: Wed, 19 Mar 2025 23:39:53 +0100
Subject: [PATCH] The posix4 library has been merged into the libc library

---
 cmake/sdlchecks.cmake | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/cmake/sdlchecks.cmake b/cmake/sdlchecks.cmake
index 7d516f8b04794..c3b310a9674ee 100644
--- a/cmake/sdlchecks.cmake
+++ b/cmake/sdlchecks.cmake
@@ -835,7 +835,7 @@ macro(CheckPTHREAD)
       if(CMAKE_C_COMPILER_ID MATCHES "SunPro")
         set(PTHREAD_LDFLAGS "-mt -lpthread")
       else()
-        set(PTHREAD_LDFLAGS "-pthread -lposix4")
+        set(PTHREAD_LDFLAGS "-pthread")
       endif()
     elseif(SYSV5)
       set(PTHREAD_CFLAGS "-D_REENTRANT -Kthread")