Fix printf-frexpl module to recognize buggy AIX 5.1 frexpl().

diff --git a/ChangeLog b/ChangeLog
index 35ca2f4..a659be1 100644 (file)
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,5 +1,11 @@
 2007-05-18  Bruno Haible  <bruno@clisp.org>
 
+       * m4/printf-frexpl.m4 (gl_FUNC_PRINTF_FREXPL): Invoke
+       gl_FUNC_FREXPL_WORKS.
+       * modules/printf-frexpl (Files): Add m4/frexpl.m4.
+
+2007-05-18  Bruno Haible  <bruno@clisp.org>
+
        * modules/frexpl-nolibm-tests: New file.
 
        * modules/frexpl-nolibm: New file.

diff --git a/m4/printf-frexpl.m4 b/m4/printf-frexpl.m4
index 6c74e9b..1de9b8d 100644 (file)
--- a/m4/printf-frexpl.m4
+++ b/m4/printf-frexpl.m4
@@ -1,4 +1,4 @@
-# printf-frexpl.m4 serial 4
+# printf-frexpl.m4 serial 5
 dnl Copyright (C) 2007 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
@@ -9,6 +9,7 @@ dnl Check how to define printf_frexpl() without linking with libm.
 AC_DEFUN([gl_FUNC_PRINTF_FREXPL],
 [
   AC_REQUIRE([gl_MATH_H_DEFAULTS])
+  dnl Subset of gl_FUNC_FREXPL_NO_LIBM.
   AC_CACHE_CHECK([whether frexpl can be used without linking with libm],
     [gl_cv_func_frexpl_no_libm],
     [
@@ -20,6 +21,15 @@ AC_DEFUN([gl_FUNC_PRINTF_FREXPL],
         [gl_cv_func_frexpl_no_libm=no])
     ])
   if test $gl_cv_func_frexpl_no_libm = yes; then
+    gl_FUNC_FREXPL_WORKS
+    case "$gl_cv_func_frexpl_works" in
+      *yes) gl_func_frexpl_no_libm=yes ;;
+      *)    gl_func_frexpl_no_libm=no; REPLACE_FREXPL=1 ;;
+    esac
+  else
+    gl_func_frexpl_no_libm=no
+  fi
+  if test $gl_func_frexpl_no_libm = yes; then
     AC_DEFINE([HAVE_FREXPL_IN_LIBC], 1,
       [Define if the frexpl function is available in libc.])
     dnl Also check whether it's declared.

diff --git a/modules/printf-frexpl b/modules/printf-frexpl
index 6221c4a..c50c4c7 100644 (file)
--- a/modules/printf-frexpl
+++ b/modules/printf-frexpl
@@ -7,6 +7,7 @@ lib/printf-frexpl.h
 lib/printf-frexpl.c
 lib/printf-frexp.c
 m4/printf-frexpl.m4
+m4/frexpl.m4
 m4/ldexpl.m4
 
 Depends-on: