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author | Paul Eggert <eggert@cs.ucla.edu> | 2011-01-08 17:20:28 -0800 |
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committer | Paul Eggert <eggert@cs.ucla.edu> | 2011-01-08 17:20:28 -0800 |
commit | a451f14b09368f4b9f96d61ddb2ee69ac048c414 (patch) | |
tree | d4076c67607428c2bd10d0d69bf763504c42ef06 /m4/c-strtod.m4 | |
parent | fa2c4f5619481856c8cdf33be987d5785f51b750 (diff) | |
download | emacs-a451f14b09368f4b9f96d61ddb2ee69ac048c414.tar.gz |
Regenerate.
Diffstat (limited to 'm4/c-strtod.m4')
-rw-r--r-- | m4/c-strtod.m4 | 59 |
1 files changed, 59 insertions, 0 deletions
diff --git a/m4/c-strtod.m4 b/m4/c-strtod.m4 new file mode 100644 index 00000000000..d5f5f502cba --- /dev/null +++ b/m4/c-strtod.m4 @@ -0,0 +1,59 @@ +# c-strtod.m4 serial 12 + +# 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 +]) + +AC_DEFUN([gl_C_STRTOD], +[ + AC_LIBOBJ([c-strtod]) + + dnl Prerequisites of lib/c-strtod.c. + AC_REQUIRE([gl_USE_SYSTEM_EXTENSIONS]) + AC_CHECK_FUNCS([strtod_l]) + + AC_REQUIRE([AC_C_INLINE]) + : +]) + +AC_DEFUN([gl_C_STRTOLD], +[ + AC_LIBOBJ([c-strtold]) + + dnl Prerequisites of lib/c-strtold.c. + AC_REQUIRE([gl_USE_SYSTEM_EXTENSIONS]) + AC_REQUIRE([gl_C99_STRTOLD]) + AC_CHECK_FUNCS([strtold_l]) + + AC_REQUIRE([AC_C_INLINE]) + : +]) |