diff options
Diffstat (limited to 'gnulib/m4/c-strtod.m4')
m--------- | gnulib | 0 | ||||
-rw-r--r-- | gnulib/m4/c-strtod.m4 | 55 |
2 files changed, 55 insertions, 0 deletions
diff --git a/gnulib b/gnulib deleted file mode 160000 -Subproject 443bc5ffcf7429e557f4a371b0661abe98ddbc1 diff --git a/gnulib/m4/c-strtod.m4 b/gnulib/m4/c-strtod.m4 new file mode 100644 index 0000000..20c65b8 --- /dev/null +++ b/gnulib/m4/c-strtod.m4 @@ -0,0 +1,55 @@ +# c-strtod.m4 serial 14 + +# Copyright (C) 2004-2006, 2009-2011 Free Software Foundation, Inc. +# This file is free software; the Free Software Foundation +# gives unlimited permission to copy and/or distribute it, +# with or without modifications, as long as this notice is preserved. + +# Written by Paul Eggert. + +AC_DEFUN([gl_C99_STRTOLD], +[ + AC_CACHE_CHECK([whether strtold conforms to C99], + [gl_cv_func_c99_strtold], + [AC_LINK_IFELSE( + [AC_LANG_PROGRAM( + [[/* On HP-UX before 11.23, strtold returns a struct instead of + long double. Reject implementations like that, by requiring + compatibility with the C99 prototype. */ + #include <stdlib.h> + static long double (*p) (char const *, char **) = strtold; + static long double + test (char const *nptr, char **endptr) + { + long double r; + r = strtold (nptr, endptr); + return r; + }]], + [[return test ("1.0", NULL) != 1 || p ("1.0", NULL) != 1;]])], + [gl_cv_func_c99_strtold=yes], + [gl_cv_func_c99_strtold=no])]) + if test $gl_cv_func_c99_strtold = yes; then + AC_DEFINE([HAVE_C99_STRTOLD], [1], [Define to 1 if strtold conforms to C99.]) + fi +]) + +dnl Prerequisites of lib/c-strtod.c. +AC_DEFUN([gl_C_STRTOD], +[ + AC_REQUIRE([gl_USE_SYSTEM_EXTENSIONS]) + AC_CHECK_FUNCS([strtod_l]) + + AC_REQUIRE([AC_C_INLINE]) + : +]) + +dnl Prerequisites of lib/c-strtold.c. +AC_DEFUN([gl_C_STRTOLD], +[ + AC_REQUIRE([gl_USE_SYSTEM_EXTENSIONS]) + AC_REQUIRE([gl_C99_STRTOLD]) + AC_CHECK_FUNCS([strtold_l]) + + AC_REQUIRE([AC_C_INLINE]) + : +]) |