Assume <sys/resource.h> exists

It is required by POSIX.1-2001.

Cc: Christian Göttsche <cgzones@googlemail.com>
Signed-off-by: Alejandro Colomar <alx@kernel.org>

configure.ac

@@ -38,7 +38,7 @@ dnl Checks for libraries.
 dnl Checks for header files.
 AC_CHECK_HEADERS(crypt.h utmp.h \
 	termio.h sgtty.h sys/ioctl.h paths.h \
-	sys/capability.h sys/random.h sys/resource.h \
+	sys/capability.h sys/random.h \
 	gshadow.h lastlog.h rpc/key_prot.h netdb.h acl/libacl.h \
 	attr/libattr.h attr/error_context.h)
 

libmisc/limits.c

@@ -28,10 +28,8 @@
 #include <pwd.h>
 #include "getdef.h"
 #include "shadowlog.h"
-#ifdef HAVE_SYS_RESOURCE_H
 #include <sys/resource.h>
 #define LIMITS
-#endif
 #ifdef LIMITS
 #ifndef LIMITS_FILE
 #define LIMITS_FILE "/etc/limits"

libmisc/pwd_init.c

@@ -15,9 +15,7 @@
 #include <signal.h>
 #include <sys/types.h>
 #include <sys/stat.h>
-#ifdef HAVE_SYS_RESOURCE_H
 #include <sys/resource.h>
-#endif
 
 #include "prototypes.h"
 
@@ -28,7 +26,6 @@
  */
 void pwd_init (void)
 {
-#ifdef HAVE_SYS_RESOURCE_H
 	struct rlimit rlim;
 
 #ifdef RLIMIT_CORE
@@ -57,10 +54,6 @@ void pwd_init (void)
 #ifdef RLIMIT_STACK
 	setrlimit (RLIMIT_STACK, &rlim);
 #endif
-#else				/* !HAVE_SYS_RESOURCE_H */
-	set_filesize_limit (30000);
-	/* don't know how to set the other limits... */
-#endif				/* !HAVE_SYS_RESOURCE_H */
 
 	signal (SIGALRM, SIG_IGN);
 	signal (SIGHUP, SIG_IGN);

libmisc/ulimit.c

@@ -11,11 +11,9 @@
 
 #ident "$Id$"
 
-#if HAVE_SYS_RESOURCE_H
 #include <sys/time.h>		/* for struct timeval on sunos4 */
 /* XXX - is the above ok or should it be <time.h> on ultrix? */
 #include <sys/resource.h>
-#endif
 #include "prototypes.h"
 
 int set_filesize_limit (int blocks)