frexp: Remove support for IRIX.

* m4/frexp.m4 (gl_FUNC_FREXP_WORKS): Remove code for IRIX.

diff --git a/ChangeLog b/ChangeLog
index 3f901644d77bd43dbf99893f50edea5491213936..b382b6deb91269dddfe7ef5961cb8451acbe3a7d 100644 (file)
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,5 +1,8 @@
 2025-09-10  Bruno Haible  <bruno@clisp.org>
 
+       frexp: Remove support for IRIX.
+       * m4/frexp.m4 (gl_FUNC_FREXP_WORKS): Remove code for IRIX.
+
        fmal: Remove support for IRIX.
        * m4/fmal.m4 (gl_FUNC_FMAL): Don't test whether fmal is declared.
        (gl_FUNC_FMAL_WORKS): Remove IRIX <float.h> workaround.

diff --git a/m4/frexp.m4 b/m4/frexp.m4
index ea2229e4868925206ee31773df8242886565854f..003dd79034ceb5685fd72f501c51f38e801e94c4 100644 (file)
--- a/m4/frexp.m4
+++ b/m4/frexp.m4
@@ -1,5 +1,5 @@
 # frexp.m4
-# serial 20
+# serial 21
 dnl Copyright (C) 2007-2025 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
@@ -89,8 +89,8 @@ AC_DEFUN([gl_CHECK_FREXP_NO_LIBM],
 ])
 
 dnl Test whether frexp() works also on denormalized numbers (this fails e.g. on
-dnl NetBSD 3.0), on infinite numbers (this fails e.g. on IRIX 6.5 and mingw),
-dnl and on negative zero (this fails e.g. on NetBSD 4.99 and mingw).
+dnl NetBSD 3.0), on infinite numbers (this fails e.g. on mingw), and on negative
+dnl zero (this fails e.g. on NetBSD 4.99 and mingw).
 AC_DEFUN([gl_FUNC_FREXP_WORKS],
 [
   AC_REQUIRE([AC_PROG_CC])
@@ -111,7 +111,7 @@ AC_DEFUN([gl_FUNC_FREXP_WORKS],
    ICC 10.0 has a bug when optimizing the expression -zero.
    The expression -DBL_MIN * DBL_MIN does not work when cross-compiling
    to PowerPC on Mac OS X 10.5.  */
-#if defined __hpux || defined __sgi || defined __ICC
+#if defined __hpux || defined __ICC
 static double
 compute_minus_zero (void)
 {
@@ -167,7 +167,7 @@ int main()
         [gl_cv_func_frexp_works=yes],
         [gl_cv_func_frexp_works=no],
         [case "$host_os" in
-           netbsd* | irix*) gl_cv_func_frexp_works="guessing no" ;;
+           netbsd*) gl_cv_func_frexp_works="guessing no" ;;
            # Guess yes with MSVC, no with mingw.
            windows*-msvc*)
              gl_cv_func_frexp_works="guessing yes"