diff options
| author | Bram Moolenaar <Bram@vim.org> | 2016-02-29 21:38:26 +0100 |
|---|---|---|
| committer | Bram Moolenaar <Bram@vim.org> | 2016-02-29 21:38:26 +0100 |
| commit | a6b8976bb724f8c85dd5699d115d795f7b730298 (patch) | |
| tree | b9755c97cc1d8ab82d6e18c97c48da6b98f27992 /src/configure.in | |
| parent | 2f6271b1e7cff985cac66f6850116bcf3fcccd58 (diff) | |
patch 7.4.1463v7.4.1463
Problem: Configure doesn't find isinf() and isnan() on some systems.
Solution: Use a configure check that includes math.h.
Diffstat (limited to 'src/configure.in')
| -rw-r--r-- | src/configure.in | 29 |
1 files changed, 28 insertions, 1 deletions
diff --git a/src/configure.in b/src/configure.in index c809427f9c..b618b8c36e 100644 --- a/src/configure.in +++ b/src/configure.in @@ -3565,7 +3565,7 @@ AC_CHECK_FUNCS(bcmp fchdir fchown fsync getcwd getpseudotty \ 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. |