tvmet-1.7.1/config/ac_c_long_long.m4

dnl $Id: ac_c_long_long.m4,v 1.2 2004/04/23 23:41:52 opetzold Exp $
dnl
dnl Provides a test for the existance of the long long int type and
dnl defines HAVE_LONG_LONG if it is found.
dnl

AC_DEFUN([AC_C_LONG_LONG],
[AC_CACHE_CHECK(for long long int, ac_cv_c_long_long,
[AC_LANG_PUSH([C++])
 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
   long long int i;
]], [[]])],[ac_cv_c_long_long=yes],[ac_cv_c_long_long=no])
 AC_LANG_POP([C++])
])
if test "$ac_cv_c_long_long" = yes; then
  AC_DEFINE(HAVE_LONG_LONG,,[Define if the compiler supports the long_long type])
fi
])
Starting Eigen 2 development. The current plan is to use the last release of tvmet (inactive for 2 years and developer unreachable) as the basis for eigen2, because it provides seemingly good expression template mechanisms, we want that, and it would take years to reinvent that wheel. We'll see. So this commit imports the last tvmet release. 2007-05-30 06:24:51 +00:00			`dnl $Id: ac_c_long_long.m4,v 1.2 2004/04/23 23:41:52 opetzold Exp $`
			`dnl`
			`dnl Provides a test for the existance of the long long int type and`
			`dnl defines HAVE_LONG_LONG if it is found.`
			`dnl`

			`AC_DEFUN([AC_C_LONG_LONG],`
			`[AC_CACHE_CHECK(for long long int, ac_cv_c_long_long,`
			`[AC_LANG_PUSH([C++])`
			`AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[`
			`long long int i;`
			`]], [[]])],[ac_cv_c_long_long=yes],[ac_cv_c_long_long=no])`
			`AC_LANG_POP([C++])`
			`])`
			`if test "$ac_cv_c_long_long" = yes; then`
			`AC_DEFINE(HAVE_LONG_LONG,,[Define if the compiler supports the long_long type])`
			`fi`
			`])`