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author | Bruno Haible <bruno@clisp.org> | 2008-12-21 17:35:30 +0100 |
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committer | Bruno Haible <bruno@clisp.org> | 2008-12-21 17:35:30 +0100 |
commit | 222bd6c8493f3392c15db8cb3fe2e382063727d4 (patch) | |
tree | 8c89272da7a9df1a6a669fe0d37f0ad93432d5b5 /m4/btowc.m4 | |
parent | 3679dd2c6191c9872d0ffeced51e711f26099d65 (diff) | |
download | gnulib-222bd6c8493f3392c15db8cb3fe2e382063727d4.tar.gz |
Work around a btowc() bug on IRIX 6.5.
Diffstat (limited to 'm4/btowc.m4')
-rw-r--r-- | m4/btowc.m4 | 47 |
1 files changed, 46 insertions, 1 deletions
diff --git a/m4/btowc.m4 b/m4/btowc.m4 index a53694acd6..64ff829061 100644 --- a/m4/btowc.m4 +++ b/m4/btowc.m4 @@ -1,4 +1,4 @@ -# btowc.m4 serial 2 +# btowc.m4 serial 3 dnl Copyright (C) 2008 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, @@ -11,6 +11,51 @@ AC_DEFUN([gl_FUNC_BTOWC], AC_CHECK_FUNCS_ONCE([btowc]) if test $ac_cv_func_btowc = no; then HAVE_BTOWC=0 + else + + dnl IRIX 6.5 btowc(EOF) is 0xFF, not WEOF. + AC_REQUIRE([AC_PROG_CC]) + AC_REQUIRE([gt_LOCALE_FR]) + AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles + AC_CACHE_CHECK([whether btowc(EOF) is correct], + [gl_cv_func_btowc_eof], + [ + dnl Initial guess, used when cross-compiling or when no suitable locale + dnl is present. +changequote(,)dnl + case "$host_os" in + # Guess no on IRIX. + irix*) gl_cv_func_btowc_eof="guessing no" ;; + # Guess yes otherwise. + *) gl_cv_func_btowc_eof="guessing yes" ;; + esac +changequote([,])dnl + if test $LOCALE_FR != none; then + AC_TRY_RUN([ +#include <locale.h> +#include <stdio.h> +#include <string.h> +#include <wchar.h> +int main () +{ + if (setlocale (LC_ALL, "$LOCALE_FR") != NULL) + { + if (btowc (EOF) != WEOF) + return 1; + } + return 0; +}], + [gl_cv_func_btowc_eof=yes], + [gl_cv_func_btowc_eof=no], + []) + fi + ]) + case "$gl_cv_func_btowc_eof" in + *yes) ;; + *) REPLACE_BTOWC=1 ;; + esac + fi + if test $HAVE_BTOWC = 0 || test $REPLACE_BTOWC = 1; then gl_REPLACE_WCHAR_H AC_LIBOBJ([btowc]) gl_PREREQ_BTOWC |