X-Git-Url: http://git.onelab.eu/?a=blobdiff_plain;f=m4%2Fensc_dietlibc.m4;h=ac0ae371fd1b7fddf8c5d1d58dc2f90e1d2fc224;hb=95e2774070e989fe9cf9f48dae5fa054e55e2a3e;hp=02d1647e8ff31c6475487b98e10692286f5661fc;hpb=2822ba293eb308225c50d346930c47bf98d9927b;p=util-vserver.git

diff --git a/m4/ensc_dietlibc.m4 b/m4/ensc_dietlibc.m4
index 02d1647..ac0ae37 100644
--- a/m4/ensc_dietlibc.m4
+++ b/m4/ensc_dietlibc.m4
@@ -1,4 +1,4 @@
-dnl $Id: ensc_dietlibc.m4,v 1.15 2005/05/05 19:13:52 ensc Exp $
+dnl $Id: ensc_dietlibc.m4 2453 2007-01-17 09:54:53Z dhozac $
 
 dnl Copyright (C) 2002 Enrico Scholz <enrico.scholz@informatik.tu-chemnitz.de>
 dnl  
@@ -51,6 +51,32 @@ AC_DEFUN([_ENSC_DIETLIBC_C99],
 	fi
 ])
 
+AC_DEFUN([_ENSC_DIETLIBC_SYSCALL],
+[
+	AH_TEMPLATE([ENSC_DIETLIBC_HAS_SYSCALL], [Define to 1 if dietlibc declares syscall])
+
+	AC_CACHE_CHECK([whether dietlibc declares syscall], [ensc_cv_c_dietlibc_syscall],
+	[
+		_ensc_dietlibc_syscall_old_CC="$CC"
+		CC="${DIET:-diet} $CC"
+
+		AC_LANG_PUSH(C)
+		AC_COMPILE_IFELSE([
+			#include <sys/syscall.h>
+			long int syscall(long int __sysno, ...);
+		],
+		[ensc_cv_c_dietlibc_syscall=no],
+		[ensc_cv_c_dietlibc_syscall=yes])
+		AC_LANG_POP
+
+		CC="$_ensc_dietlibc_syscall_old_CC"
+	])
+
+	if test x"$ensc_cv_c_dietlibc_syscall" = xyes; then
+		AC_DEFINE(ENSC_DIETLIBC_HAS_SYSCALL,1)
+	fi
+])
+
 dnl Usage: ENSC_ENABLE_DIETLIBC(<conditional>[,<min-version>])
 dnl        <conditional> ... automake-conditional which will be set when
 dnl                          dietlibc shall be enabled
@@ -134,21 +160,7 @@ AC_DEFUN([ENSC_ENABLE_DIETLIBC],
 
 	if test x"$ensc_have_dietlibc" != xno; then
 		_ENSC_DIETLIBC_C99
+		_ENSC_DIETLIBC_SYSCALL
 	fi
 ])
 
-
-dnl Usage: ENSC_DIETLIBC_SANITYCHECK
-AC_DEFUN([ENSC_DIETLIBC_SANITYCHECK],
-[
-	AC_REQUIRE([AC_CANONICAL_HOST])
-	AC_REQUIRE([ENSC_ENABLE_DIETLIBC])
-
-	if test "$host_cpu" = x86_64 -a $ENSC_VERSION_DIETLIBC_NUM -le 0027; then
-		AC_MSG_WARN([***                                                             ***])
-		AC_MSG_WARN([*** dietlibc<=0.27 is known to be broken for x86_64 systems     ***])
-		AC_MSG_WARN([*** please make sure that at least the environ.S fix is applied ***])
-		AC_MSG_WARN([*** and lib/__nice.c added                                      ***])
-		AC_MSG_WARN([***                                                             ***])
-	fi
-])