blob: 665d6a1f9914481ceee64dba63344bf20fe46521 [file] [log] [blame]
From 8cea0778f0fb838a7bd764be08f15e1494e5a0b2 Mon Sep 17 00:00:00 2001
From: Mike Frysinger <>
Date: Fri, 19 Nov 2010 23:50:27 -0500
Subject: [PATCH 4/4] NO_PERROR: control overriding of perror() symbol
Doing static builds of portmap might fail when the C library's perror()
function is pulled in and collides with portmap's definition. So add a
flag to control the local override.
Signed-off-by: Mike Frysinger <>
Makefile | 5 +++++
README | 1 +
2 files changed, 6 insertions(+), 0 deletions(-)
diff --git a/Makefile b/Makefile
index 9df5574..1635107 100644
--- a/Makefile
+++ b/Makefile
@@ -32,6 +32,11 @@ ifneq ($(NO_FORK),)
+# For static builds, we might hit perror() symbol clashes
+ifneq ($(NO_PERROR),)
# Comment out if your RPC library does not allocate privileged ports for
# requests from processes with root privilege, or the new portmap will
# always reject requests to register/unregister services on privileged
diff --git a/README b/README
index bda1707..05861a8 100644
--- a/README
+++ b/README
@@ -19,6 +19,7 @@ There is no "./configure", just use "make".
Some make variable can be used to control compilation.
NO_FORK= if non-empty, don't use fork (good for nommu systems)
+ NO_PERROR= if non-empty, don't override the perror() func
NO_PIE= if non-empty, don't build portmap as a PIE
NO_TCP_WRAPPER= if non-empty, don't use tcp_wrappers
USE_DNS= if set, tcp_wrappers can check peers based on hostname
diff --git a/portmap.c b/portmap.c
index 2a98881..94abc64 100644
--- a/portmap.c
+++ b/portmap.c
@@ -391,12 +391,14 @@ main(int argc, char **argv)
+#ifndef NO_PERROR
/* need to override perror calls in rpc library */
void perror(const char *what)
syslog(LOG_ERR, "%s: %m", what);
static struct pmaplist *
find_service(u_long prog, u_long vers, u_long prot)