Hi Baruch,
I noticed this issue from:
http://permalink.gmane.org/gmane.comp.lib.uclibc.buildroot/73294
I've not tested the following on uclibc, but does the attached patch fix it?
(you just need to patch the m4/spawn_h.m4 file in coreutils to test this)
thanks,
Pádraig.
>From 71cf16e435bf5db64abcf81a9dc6dc36ce37d58d Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?P=C3=A1draig=20Brady?= <p...@draigbrady.com>
Date: Tue, 14 Jan 2014 16:59:07 +0000
Subject: [PATCH] spawn: fix link error on uclibc
* m4/spawn_h.m4 (gl_HAVE_POSIX_SPAWN): use AC_SEARCH_LIBS,
to incorporate -lrt if needed (on uclibc for example).
* modules/posix_spawn: Reference the substituted LIB.
---
ChangeLog | 8 +++++++-
m4/spawn_h.m4 | 10 +++++++++-
modules/posix_spawn | 3 +++
3 files changed, 19 insertions(+), 2 deletions(-)
diff --git a/ChangeLog b/ChangeLog
index 448f882..9836c82 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,10 @@
+2014-01-14 Pádraig Brady <p...@draigbrady.com>
+
+ spawn: fix link error on uclibc
+ * m4/spawn_h.m4 (gl_HAVE_POSIX_SPAWN): use AC_SEARCH_LIBS,
+ to incorporate -lrt if needed (on uclibc for example).
+ * modules/posix_spawn: Reference the substituted LIB.
+
2014-01-03 Jim Meyering <meyer...@fb.com>
maint.mk: adapt openat.h-include-without-use test
@@ -59,7 +66,6 @@
directory now passes for me.
2014-01-03 Paul Eggert <egg...@cs.ucla.edu>
-
doc: use ASCII in .texi files where UTF-8 isn't needed
* doc/posix-functions/crypt.texi, doc/posix-functions/encrypt.texi:
* doc/posix-functions/setkey.texi, doc/regex.texi:
diff --git a/m4/spawn_h.m4 b/m4/spawn_h.m4
index 87fe122..3eb835c 100644
--- a/m4/spawn_h.m4
+++ b/m4/spawn_h.m4
@@ -64,7 +64,15 @@ AC_DEFUN([gl_HAVE_POSIX_SPAWN],
dnl once only, before all statements that occur in other macros.
AC_REQUIRE([gl_SPAWN_H_DEFAULTS])
- AC_CHECK_FUNCS_ONCE([posix_spawn])
+ LIB_POSIX_SPAWN=
+ AC_SUBST([LIB_POSIX_SPAWN])
+ gl_saved_libs=$LIBS
+ AC_SEARCH_LIBS([posix_spawn], [rt],
+ [test "$ac_cv_search_posix_spawn" = "none required" ||
+ LIB_POSIX_SPAWN=$ac_cv_search_posix_spawn])
+ AC_CHECK_FUNCS([posix_spawn])
+ LIBS=$gl_saved_libs
+
if test $ac_cv_func_posix_spawn != yes; then
HAVE_POSIX_SPAWN=0
fi
diff --git a/modules/posix_spawn b/modules/posix_spawn
index ec8eac1..62b0956 100644
--- a/modules/posix_spawn
+++ b/modules/posix_spawn
@@ -23,6 +23,9 @@ Makefile.am:
Include:
<spawn.h>
+Link:
+$(LIB_POSIX_SPAWN)
+
License:
LGPLv2+
--
1.7.7.6
