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Diffstat (limited to 'm4/atanf.m4')
| -rw-r--r-- | m4/atanf.m4 | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/m4/atanf.m4 b/m4/atanf.m4 new file mode 100644 index 0000000000..e64ba04587 --- /dev/null +++ b/m4/atanf.m4 @@ -0,0 +1,25 @@ +# atanf.m4 serial 1 +dnl Copyright (C) 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, +dnl with or without modifications, as long as this notice is preserved. + +AC_DEFUN([gl_FUNC_ATANF], +[ + AC_REQUIRE([gl_MATH_H_DEFAULTS]) + AC_REQUIRE([gl_FUNC_ATAN]) + + dnl Test whether atanf() exists. Assume that atanf(), if it exists, is + dnl defined in the same library as atan(). + save_LIBS="$LIBS" + LIBS="$LIBS $ATAN_LIBM" + AC_CHECK_FUNCS([atanf]) + LIBS="$save_LIBS" + if test $ac_cv_func_atanf = yes; then + ATANF_LIBM="$ATAN_LIBM" + else + HAVE_ATANF=0 + ATANF_LIBM="$ATAN_LIBM" + fi + AC_SUBST([ATANF_LIBM]) +]) |