faubackup2/m4 lsh-gcc-attributes.m4,NONE,1.1

Update of /cvsroot/faubackup/faubackup2/m4
In directory sc8-pr-cvs1.sourceforge.net:/tmp/cvs-serv29575/m4

Added Files:
	lsh-gcc-attributes.m4 
Log Message:
use argp argument parser

--- NEW FILE: lsh-gcc-attributes.m4 ---
dnl LSH_GCC_ATTRIBUTES
dnl Check for gcc's __attribute__ construction

AC_DEFUN([LSH_GCC_ATTRIBUTES],
[AC_CACHE_CHECK(for __attribute__,
	       lsh_cv_c_attribute,
[ AC_TRY_COMPILE([
#include <stdlib.h>
],
[
static void foo(void) __attribute__ ((noreturn));

static void __attribute__ ((noreturn))
foo(void)
{
  exit(1);
}
],
lsh_cv_c_attribute=yes,
lsh_cv_c_attribute=no)])

AH_TEMPLATE([HAVE_GCC_ATTRIBUTE], [Define if the compiler understands __attribute__])
if test "x$lsh_cv_c_attribute" = "xyes"; then
  AC_DEFINE(HAVE_GCC_ATTRIBUTE)
fi

AH_BOTTOM(
[#if __GNUC__ && HAVE_GCC_ATTRIBUTE
# define NORETURN __attribute__ ((__noreturn__))
# define PRINTF_STYLE(f, a) __attribute__ ((__format__ (__printf__, f, a)))
# define UNUSED __attribute__ ((__unused__))
#else
# define NORETURN
# define PRINTF_STYLE(f, a)
# define UNUSED
#endif
])])



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