Mercurial > vim
diff src/configure.in @ 8342:446558924b66 v7.4.1463
commit https://github.com/vim/vim/commit/a6b8976bb724f8c85dd5699d115d795f7b730298
Author: Bram Moolenaar <Bram@vim.org>
Date: Mon Feb 29 21:38:26 2016 +0100
patch 7.4.1463
Problem: Configure doesn't find isinf() and isnan() on some systems.
Solution: Use a configure check that includes math.h.
| author | Christian Brabandt <cb@256bit.org> |
|---|---|
| date | Mon, 29 Feb 2016 21:45:04 +0100 |
| parents | 6ae3fb4fe7c1 |
| children | caed4b2d305f |
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--- a/src/configure.in +++ b/src/configure.in @@ -3565,7 +3565,7 @@ AC_CHECK_FUNCS(bcmp fchdir fchown fsync setpgid setsid sigaltstack sigstack sigset sigsetjmp sigaction \ sigvec strcasecmp strerror strftime stricmp strncasecmp \ strnicmp strpbrk strtol tgetent towlower towupper iswupper \ - usleep utime utimes isnan isinf) + usleep utime utimes) AC_FUNC_FSEEKO dnl define _LARGE_FILES, _FILE_OFFSET_BITS and _LARGEFILE_SOURCE when @@ -3668,6 +3668,33 @@ AC_TRY_LINK([ AC_MSG_RESULT(yes); AC_DEFINE(HAVE_FLOAT_FUNCS), AC_MSG_RESULT(no)) +dnl isinf() and isnan() need to include header files and may need -lm. +AC_MSG_CHECKING([for isinf()]) +AC_TRY_LINK([ +#ifdef HAVE_MATH_H +# include <math.h> +#endif +#if STDC_HEADERS +# include <stdlib.h> +# include <stddef.h> +#endif +], [int r = isinf(1.11); ], + AC_MSG_RESULT(yes); AC_DEFINE(HAVE_ISINF), + AC_MSG_RESULT(no)) + +AC_MSG_CHECKING([for isnan()]) +AC_TRY_LINK([ +#ifdef HAVE_MATH_H +# include <math.h> +#endif +#if STDC_HEADERS +# include <stdlib.h> +# include <stddef.h> +#endif +], [int r = isnan(1.11); ], + AC_MSG_RESULT(yes); AC_DEFINE(HAVE_ISNAN), + AC_MSG_RESULT(no)) + dnl Link with -lposix1e for ACL stuff; if not found, try -lacl for SGI dnl when -lacl works, also try to use -lattr (required for Debian). dnl On Solaris, use the acl_get/set functions in libsec, if present.