diff options
Diffstat (limited to 'configure.in')
| -rw-r--r-- | configure.in | 18 |
1 files changed, 11 insertions, 7 deletions
diff --git a/configure.in b/configure.in index 94b0a5085d6..8462fffc434 100644 --- a/configure.in +++ b/configure.in @@ -1,5 +1,5 @@ dnl Process this file with autoconf to produce a configure script. -dnl $Header: /cvsroot/pgsql/configure.in,v 1.301.2.18 2006/01/05 03:59:47 momjian Exp $ +dnl $Header: /cvsroot/pgsql/configure.in,v 1.301.2.19 2006/01/12 19:24:26 tgl Exp $ dnl dnl Developers, please strive to achieve this order: dnl @@ -912,12 +912,13 @@ AC_CHECK_FUNCS(vsnprintf, [], pgac_need_repl_snprintf=yes) AC_CHECK_DECLS([snprintf, vsnprintf]) -# do this one the hard way in case isinf() is a macro +dnl Cannot use AC_CHECK_FUNC because isinf may be a macro AC_CACHE_CHECK([for isinf], ac_cv_func_isinf, -[AC_TRY_LINK( -[#include <math.h> +[AC_TRY_LINK([ +#include <math.h> +double glob_double; ], -[double x = 0.0; int res = isinf(x);], +[return isinf(glob_double) ? 0 : 1;], [ac_cv_func_isinf=yes], [ac_cv_func_isinf=no])]) @@ -974,8 +975,11 @@ fi dnl Cannot use AC_CHECK_FUNC because finite may be a macro AC_MSG_CHECKING(for finite) -AC_TRY_LINK([#include <math.h>], - [int dummy=finite(1.0);], +AC_TRY_LINK([ +#include <math.h> +double glob_double; +], + [return finite(glob_double) ? 0 : 1;], [AC_DEFINE(HAVE_FINITE, 1, [Define to 1 if you have finite().]) AC_MSG_RESULT(yes)], [AC_MSG_RESULT(no)]) |