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| author | Bruno Haible <bruno@clisp.org> | 2020-05-09 02:55:06 +0200 |
|---|---|---|
| committer | Bruno Haible <bruno@clisp.org> | 2020-05-09 02:55:06 +0200 |
| commit | c8eb1af611279eaebff505dbfe176885ca3b0fdc (patch) | |
| tree | b93d7c0eef6c39b938956ad6e34038a81ac1334e /m4 | |
| parent | 6351ed01c42899191155e2b6dd74f077f1cff193 (diff) | |
| download | gnulib-c8eb1af611279eaebff505dbfe176885ca3b0fdc.tar.gz | |
c32rtomb: Avoid compilation failure on Haiku.
* m4/c32rtomb.m4 (gl_FUNC_C32RTOMB): Test for c32rtomb without excluding
inline definitions.
* doc/posix-functions/c32rtomb.texi: Mention the Haiku problem.
Diffstat (limited to 'm4')
| -rw-r--r-- | m4/c32rtomb.m4 | 20 |
1 files changed, 17 insertions, 3 deletions
diff --git a/m4/c32rtomb.m4 b/m4/c32rtomb.m4 index 4cf0e4deda..f55ce3161b 100644 --- a/m4/c32rtomb.m4 +++ b/m4/c32rtomb.m4 @@ -1,4 +1,4 @@ -# c32rtomb.m4 serial 1 +# c32rtomb.m4 serial 2 dnl Copyright (C) 2020 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, @@ -10,8 +10,22 @@ AC_DEFUN([gl_FUNC_C32RTOMB], AC_REQUIRE([gl_MBRTOC32_SANITYCHECK]) - AC_CHECK_FUNCS_ONCE([c32rtomb]) - if test $ac_cv_func_c32rtomb = no; then + dnl We can't use AC_CHECK_FUNC here, because c32rtomb() is defined as a + dnl static inline function on Haiku 2020. + AC_CACHE_CHECK([for c32rtomb], [gl_cv_func_c32rtomb], + [AC_LINK_IFELSE( + [AC_LANG_PROGRAM( + [[#include <stdlib.h> + #include <uchar.h> + ]], + [[char buf[8]; + return c32rtomb (buf, 0, NULL) == 0; + ]]) + ], + [gl_cv_func_c32rtomb=yes], + [gl_cv_func_c32rtomb=no]) + ]) + if test $gl_cv_func_c32rtomb = no; then HAVE_C32RTOMB=0 else dnl When we override mbrtoc32, redefining the meaning of the char32_t |