check for -OPT:IEEE_NaN_inf=ON on SGI C compiler

-- Albert Chin-A-Young <china@thewrittenword.com>

git-svn-id: svn://svn.oetiker.ch/rrdtool/trunk/program@167 a5681a0c-68f1-0310-ab6d-d61299d08faa

diff --git a/configure.ac b/configure.ac
index 45e27f7cee3add01efb64c82c376e0a0091f32a1..7f02e71114f68ec2d20a7e0564b824d71947166f 100644 (file)
--- a/configure.ac
+++ b/configure.ac
@@ -416,22 +416,24 @@ AC_IEEE([out of the box], works, , , ,
        AC_IEEE([with the -mieee switch], mswitch, , , ,
          [CFLAGS="$_cflags -q float=rndsngl"
          AC_IEEE([with the -q float=rndsngl switch], qswitch, , , ,
-           [CFLAGS="$_cflags -OPT:IEEE_comparisons=ON"
-           AC_IEEE([with the -OPT:IEEE_comparisons=ON switch], ieeecmpswitch, , , ,
-             [CFLAGS=$_cflags
-             AC_IEEE([with fpsetmask(0)], mask,
-               [#include <floatingpoint.h>], [fpsetmask(0)],
-               [AC_DEFINE(MUST_DISABLE_FPMASK)
-              PERLFLAGS="CCFLAGS=-DMUST_DISABLE_FPMASK"],
-               [AC_IEEE([with signal(SIGFPE,SIG_IGN)], sigfpe,
-                 [#include <signal.h>], [signal(SIGFPE,SIG_IGN)],
-                 [AC_DEFINE(MUST_DISABLE_SIGFPE)
-                 PERLFLAGS="CCFLAGS=-DMUST_DISABLE_SIGFPE"],           
-                 AC_MSG_ERROR([
+           [CFLAGS="$_cflags -OPT:IEEE_NaN_inf=ON"
+           AC_IEEE([with the -OPT:IEEE_NaN_inf=ON switch], ieeenaninfswitch, , , ,
+             [CFLAGS="$_cflags -OPT:IEEE_comparisons=ON"
+             AC_IEEE([with the -OPT:IEEE_comparisons=ON switch], ieeecmpswitch, , , ,
+               [CFLAGS=$_cflags
+               AC_IEEE([with fpsetmask(0)], mask,
+                 [#include <floatingpoint.h>], [fpsetmask(0)],
+                 [AC_DEFINE(MUST_DISABLE_FPMASK)
+                PERLFLAGS="CCFLAGS=-DMUST_DISABLE_FPMASK"],
+                 [AC_IEEE([with signal(SIGFPE,SIG_IGN)], sigfpe,
+                   [#include <signal.h>], [signal(SIGFPE,SIG_IGN)],
+                   [AC_DEFINE(MUST_DISABLE_SIGFPE)
+                   PERLFLAGS="CCFLAGS=-DMUST_DISABLE_SIGFPE"],         
+                   AC_MSG_ERROR([
 Your Compiler does not do propper IEEE math ... Please find out how to
 make IEEE math work with your compiler and let me know (oetiker@ee.ethz.ch).
 Check config.log to see what went wrong ...
-]))])])])])])])])])
+]))])])])])])])])])])
 
 
 AC_CONFIG_FILES([examples/shared-demo.pl                       \