From 3e93d84755c55ac1b72137a487e5c6b2932f127d Mon Sep 17 00:00:00 2001
From: Phil Sutter <phil@nwl.cc>
Date: Wed, 10 Jun 2026 13:54:01 +0200
Subject: [PATCH] profiling: Include unistd.h to avoid compiler warnings
MIME-Version: 1.0
Content-Type: text/plain; charset=utf8
Content-Transfer-Encoding: 8bit

RHEL8's gcc-8.5.0 emits these warnings:

src/profiling.c: In function ‘get_signalfd’:
src/profiling.c:32:3: warning: implicit declaration of function ‘close’; did you mean ‘pclose’? [-Wimplicit-function-declaration]
   close(fd);
   ^~~~~
   pclose
src/profiling.c: In function ‘check_signalfd’:
src/profiling.c:42:6: warning: implicit declaration of function ‘read’; did you mean ‘fread’? [-Wimplicit-function-declaration]
  if (read(fd, &info, sizeof(info)) < (signed)sizeof(info))
      ^~~~
      fread

Fixes: 868040f892238 ("configure: Implement --enable-profiling option")
Signed-off-by: Phil Sutter <phil@nwl.cc>
---
 src/profiling.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/profiling.c b/src/profiling.c
index 34d91cc1..f9ac36bd 100644
--- a/src/profiling.c
+++ b/src/profiling.c
@@ -12,6 +12,7 @@
 #include <sys/signalfd.h>
 #include <signal.h>
 #include <stdio.h>
+#include <unistd.h>
 
 int get_signalfd(void)
 {
-- 
2.47.3