diff options
Diffstat (limited to 'm4/floorf.m4')
| -rw-r--r-- | m4/floorf.m4 | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/m4/floorf.m4 b/m4/floorf.m4 index d426569c18..aa76f8cae2 100644 --- a/m4/floorf.m4 +++ b/m4/floorf.m4 @@ -1,4 +1,4 @@ -# floorf.m4 serial 9 +# floorf.m4 serial 10 dnl Copyright (C) 2007, 2009-2011 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, @@ -35,10 +35,12 @@ AC_DEFUN([gl_FUNC_FLOORF], #include <math.h> ]gl_FLOAT_MINUS_ZERO_CODE[ ]gl_FLOAT_SIGNBIT_CODE[ -int main() +static float dummy (float f) { return 0; } +int main (int argc, char *argv[]) { + float (*my_floorf) (float) = argc ? floorf : dummy; /* Test whether floorf (-0.0f) is -0.0f. */ - if (signbitf (minus_zerof) && !signbitf (floorf (minus_zerof))) + if (signbitf (minus_zerof) && !signbitf (my_floorf (minus_zerof))) return 1; return 0; } |