Remove temporary autoconf checks added in revision 62592

configure.in

@@ -2980,141 +2980,6 @@ fi],
 # ************************************
 LIBS_SAVE=$LIBS
 LIBS="$LIBS $LIBM"
-
-# temporary checks to try to track down what's going wrong
-# with test_math on Debian/alpha.  These checks will be
-# removed later.
-
-case $ac_sys_machine in
-alpha*)
-
-    AC_MSG_CHECKING(whether 9.88e-324 compares unequal to 0.0)
-    AC_TRY_RUN([
-    #include <stdlib.h>
-    int main() {
-        double x = 9.88e-324;
-        if (x != 0.0)
-            exit(0);
-        else
-            exit(1);
-    }
-    ],
-    ac_cv_subnormal_nonzero=yes,
-    ac_cv_subnormal_nonzero=no,
-    ac_cv_subnormal_nonzero=no)
-    AC_MSG_RESULT($ac_cv_subnormal_nonzero)
-
-    AC_MSG_CHECKING(whether log(9.88e-324) succeeds)
-    AC_TRY_RUN([
-    #include <math.h>
-    #include <stdlib.h>
-    int main() {
-        double x = 9.88e-324;
-        x = log(x);
-        exit(0);
-    }
-    ],
-    ac_cv_log_subnormal_succeeds=yes,
-    ac_cv_log_subnormal_succeeds=no,
-    ac_cv_log_subnormal_succeeds=no)
-    AC_MSG_RESULT($ac_cv_log_subnormal_succeeds)
-
-    AC_MSG_CHECKING(whether log(9.88e-324) returns correct result)
-    AC_TRY_RUN([
-    #include <math.h>
-    #include <stdlib.h>
-    int main() {
-        double x = 9.88e-324;
-        x = log(x);
-        if (-744. < x && x < -743.)
-            exit(0);
-        else
-            exit(1);
-    }
-    ],
-    ac_cv_log_subnormal_returns_correct_result=yes,
-    ac_cv_log_subnormal_returns_correct_result=no,
-    ac_cv_log_subnormal_returns_correct_result=no)
-    AC_MSG_RESULT($ac_cv_log_subnormal_returns_correct_result)
-
-    AC_MSG_CHECKING(whether log(9.88e-324) sets errno)
-    AC_TRY_RUN([
-    #include <math.h>
-    #include <stdlib.h>
-    #include <errno.h>
-    int main() {
-        double x = 9.88e-324;
-        errno = 0;
-        x = log(x);
-        if (errno != 0)
-            exit(0);
-        else
-            exit(1);
-    }
-    ],
-    ac_cv_log_subnormal_sets_errno=yes,
-    ac_cv_log_subnormal_sets_errno=no,
-    ac_cv_log_subnormal_sets_errno=no)
-    AC_MSG_RESULT($ac_cv_log_subnormal_sets_errno)
-
-    AC_MSG_CHECKING(whether log(9.88e-324) sets errno = EDOM)
-    AC_TRY_RUN([
-    #include <math.h>
-    #include <stdlib.h>
-    #include <errno.h>
-    int main() {
-        double x = 9.88e-324;
-        errno = 0;
-        x = log(x);
-        if (errno == EDOM)
-            exit(0);
-        else
-            exit(1);
-    }
-    ],
-    ac_cv_log_subnormal_sets_errno_to_EDOM=yes,
-    ac_cv_log_subnormal_sets_errno_to_EDOM=no,
-    ac_cv_log_subnormal_sets_errno_to_EDOM=no)
-    AC_MSG_RESULT($ac_cv_log_subnormal_sets_errno_to_EDOM)
-
-    AC_MSG_CHECKING(whether log(9.88e-324) is infinite)
-    AC_TRY_RUN([
-    #include <math.h>
-    #include <stdlib.h>
-    int main() {
-        double x = 9.88e-324;
-        x = log(x);
-        if ((x > 1. || x < -1.) && x/2. == x)
-            exit(0);
-        else
-            exit(1);
-    }
-    ],
-    ac_cv_log_subnormal_is_infinite=yes,
-    ac_cv_log_subnormal_is_infinite=no,
-    ac_cv_log_subnormal_is_infinite=no)
-    AC_MSG_RESULT($ac_cv_log_subnormal_is_infinite)
-
-    AC_MSG_CHECKING(whether log(9.88e-324) is a nan)
-    AC_TRY_RUN([
-    #include <math.h>
-    #include <stdlib.h>
-    int main() {
-        double x = 9.88e-324;
-        x = log(x);
-        if (x != x)
-            exit(0);
-        else
-            exit(1);
-    }
-    ],
-    ac_cv_log_subnormal_is_nan=yes,
-    ac_cv_log_subnormal_is_nan=no,
-    ac_cv_log_subnormal_is_nan=no)
-    AC_MSG_RESULT($ac_cv_log_subnormal_is_nan)
-;;
-esac
-
 AC_REPLACE_FUNCS(hypot)
 
 AC_CHECK_FUNCS(acosh asinh atanh copysign expm1 finite isinf isnan log1p)