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| author | Oliver Kiddle <okiddle@yahoo.co.uk> | 2018-08-31 15:45:49 +0200 |
|---|---|---|
| committer | Oliver Kiddle <okiddle@yahoo.co.uk> | 2018-08-31 23:25:38 +0200 |
| commit | 43e9a1dc974c61d208ea5b39ba0b387368290a93 (patch) | |
| tree | f73e9e0d9128491990e0dde37757b7b558bfb949 | |
| parent | 410c30a25b070fa7ef137ff35166323c322bcd53 (diff) | |
| download | zsh-43e9a1dc974c61d208ea5b39ba0b387368290a93.tar.gz zsh-43e9a1dc974c61d208ea5b39ba0b387368290a93.tar.xz zsh-43e9a1dc974c61d208ea5b39ba0b387368290a93.zip | |
43357: isinf/isnan can be macros so need custom configure tests
| -rw-r--r-- | ChangeLog | 3 | ||||
| -rw-r--r-- | configure.ac | 22 |
2 files changed, 24 insertions, 1 deletions
diff --git a/ChangeLog b/ChangeLog index 8dd3bd9e8..b2af46224 100644 --- a/ChangeLog +++ b/ChangeLog @@ -1,5 +1,8 @@ 2018-08-31 Oliver Kiddle <okiddle@yahoo.co.uk> + * 43357: configure.ac: isinf/isnan can be macros rather + than functions so need a custom configure test + * unposted: Completion/Unix/Command/_git: git describe's --long and --abbrev options are not mutually exclusive diff --git a/configure.ac b/configure.ac index 5e13c0f11..5513e25f1 100644 --- a/configure.ac +++ b/configure.ac @@ -1278,7 +1278,6 @@ AC_CHECK_FUNCS(strftime strptime mktime timelocal \ erand48 open_memstream \ posix_openpt \ wctomb iconv \ - isinf isnan \ grantpt unlockpt ptsname \ htons ntohs \ regcomp regexec regerror regfree \ @@ -1291,6 +1290,27 @@ AC_CHECK_FUNCS(strftime strptime mktime timelocal \ setutxent getutxent endutxent getutent) AC_FUNC_STRCOLL +# isinf() and isnan() can exist as either functions or macros. +AH_TEMPLATE([HAVE_ISINF], + [Define to 1 if you have the `isinf' macro or function.]) +AC_MSG_CHECKING([for isinf]) +AC_LINK_IFELSE([AC_LANG_SOURCE( +[[#include <math.h> +int main () { return (isinf(1.0) != 0); }]])], + [AC_MSG_RESULT([yes]) + AC_DEFINE([HAVE_ISINF])], + [AC_MSG_RESULT([no])]) + +AH_TEMPLATE([HAVE_ISNAN], + [Define to 1 if you have the `isnan' macro or function.]) +AC_MSG_CHECKING([for isnan]) +AC_LINK_IFELSE([AC_LANG_SOURCE([[ +#include <math.h> +int main () { return (isnan(1.0) != 0); }]])], + [AC_MSG_RESULT([yes]) + AC_DEFINE([HAVE_ISNAN])], + [AC_MSG_RESULT([no])]) + AH_TEMPLATE([REALPATH_ACCEPTS_NULL], [Define if realpath() accepts NULL as its second argument.]) AC_CACHE_CHECK([if realpath accepts NULL], |