Lines Matching refs:frexpl

1 # frexpl.m4 serial 20
12   dnl Persuade glibc <math.h> to declare frexpl().
16   dnl Mac OS X 10.3 has frexpl() in libc but doesn't declare it in <math.h>.
17   AC_CHECK_DECL([frexpl], , [HAVE_DECL_FREXPL=0], [[#include <math.h>]])
23       AC_CACHE_CHECK([whether frexpl() can be used with libm],
32                [[int e; return frexpl (x, &e) > 0;]])],
56         [Define if the frexpl() function is available.])
60     dnl Find libraries needed to link lib/frexpl.c.
76   dnl Mac OS X 10.3 has frexpl() in libc but doesn't declare it in <math.h>.
77   AC_CHECK_DECL([frexpl], , [HAVE_DECL_FREXPL=0], [[#include <math.h>]])
88       dnl Set REPLACE_FREXPL here because the system may have frexpl in libm.
93         [Define if the frexpl() function is available in libc.])
98 dnl Test whether frexpl() can be used without linking with libm.
102   AC_CACHE_CHECK([whether frexpl() can be used without linking with libm],
109            [[int e; return frexpl (x, &e) > 0;]])],
115 dnl Test whether frexpl() works on finite numbers (this fails on
123   AC_CACHE_CHECK([whether frexpl works], [gl_cv_func_frexpl_works],
152 long double frexpl (long double, int *);
161     frexpl (x, &exp);
165   /* Test on finite numbers that fails on Mac OS X 10.4, because its frexpl
173     long double y = frexpl (x, &exp);
186         frexpl (x, &exp);
202         long double y = frexpl (x, &exp);
213     long double y = frexpl (x, &exp);