diff options
Diffstat (limited to 'm4/roundf.m4')
| -rw-r--r-- | m4/roundf.m4 | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/m4/roundf.m4 b/m4/roundf.m4 index 0ff964608d..83dffd1a8f 100644 --- a/m4/roundf.m4 +++ b/m4/roundf.m4 @@ -1,4 +1,4 @@ -# roundf.m4 serial 11 +# roundf.m4 serial 12 dnl Copyright (C) 2007-2011 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, @@ -66,10 +66,12 @@ int main() #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_roundf) (float) = argc ? roundf : dummy; /* Test whether roundf (-0.0f) is -0.0f. */ - if (signbitf (minus_zerof) && !signbitf (roundf (minus_zerof))) + if (signbitf (minus_zerof) && !signbitf (my_roundf (minus_zerof))) return 1; return 0; } |