diff options
Diffstat (limited to 'm4/floor.m4')
| -rw-r--r-- | m4/floor.m4 | 11 |
1 files changed, 9 insertions, 2 deletions
diff --git a/m4/floor.m4 b/m4/floor.m4 index 501d63640..a6e7ec811 100644 --- a/m4/floor.m4 +++ b/m4/floor.m4 @@ -1,4 +1,4 @@ -# floor.m4 serial 7 +# floor.m4 serial 8 dnl Copyright (C) 2007, 2009-2012 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, @@ -15,6 +15,7 @@ AC_DEFUN([gl_FUNC_FLOOR], fi m4_ifdef([gl_FUNC_FLOOR_IEEE], [ if test $gl_floor_required = ieee && test $REPLACE_FLOOR = 0; then + AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles AC_CACHE_CHECK([whether floor works according to ISO C 99 with IEC 60559], [gl_cv_func_floor_ieee], [ @@ -40,7 +41,13 @@ int main (int argc, char *argv[]) ]])], [gl_cv_func_floor_ieee=yes], [gl_cv_func_floor_ieee=no], - [gl_cv_func_floor_ieee="guessing no"]) + [case "$host_os" in + # Guess yes on glibc systems. + *-gnu*) gl_cv_func_floor_ieee="guessing yes" ;; + # If we don't know, assume the worst. + *) gl_cv_func_floor_ieee="guessing no" ;; + esac + ]) LIBS="$save_LIBS" ]) case "$gl_cv_func_floor_ieee" in |