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| author | David N. Welton <[email protected]> | 2014-12-15 17:53:09 +0100 |
|---|---|---|
| committer | Björn-Egil Dahlberg <[email protected]> | 2015-03-19 11:22:37 +0100 |
| commit | 372d62d4e1738431d33c1318be1ee4305c74649d (patch) | |
| tree | b193b74946f5430acd73ec40b3e3288bfa485793 /lib/erl_interface/configure.in | |
| parent | 243dc2ff02e3be0af2a2f1aadf7e53f09b4bdbc7 (diff) | |
| download | otp-372d62d4e1738431d33c1318be1ee4305c74649d.tar.gz otp-372d62d4e1738431d33c1318be1ee4305c74649d.tar.bz2 otp-372d62d4e1738431d33c1318be1ee4305c74649d.zip | |
Do not accept Nan and Infinity values
Erlang does not accept these values, so we return an error in the C
interface rather than letting them through to the Erlang VM, which
rejects the message with a somewhat cryptic "bad external term".
Diffstat (limited to 'lib/erl_interface/configure.in')
| -rw-r--r-- | lib/erl_interface/configure.in | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/lib/erl_interface/configure.in b/lib/erl_interface/configure.in index ef78f0f87b..076170c648 100644 --- a/lib/erl_interface/configure.in +++ b/lib/erl_interface/configure.in @@ -139,6 +139,18 @@ esac AC_CHECK_LIB([nsl], [gethostbyname]) AC_CHECK_LIB([socket], [getpeername]) +AC_MSG_CHECKING([for isfinite]) +AC_TRY_LINK([#include <math.h>], + [isfinite(0);], have_isfinite=yes, have_isfinite=no), + +if test $have_isfinite = yes; then + AC_DEFINE(HAVE_ISFINITE,[1], + [Define to 1 if you have the `isfinite' function.]) + AC_MSG_RESULT(yes) +else + AC_MSG_RESULT(no) +fi + # Checks for header files. AC_HEADER_STDC AC_HEADER_SYS_WAIT |