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build: drop the check for two functions that we don't use any more

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Since commits b0209374 and 1c010d8e from a month ago, nano does not use
mblen() and mbtowc() any more, so there is no need to check for their
presence.

Instead, add a check for iswalpha(), which we do use.
This commit is contained in:
Benno Schulenberg 2021-04-25 11:41:36 +02:00
parent ec82530125
commit 6823831c06
1 changed files with 2 additions and 3 deletions
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5
configure.ac
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@ -350,7 +350,7 @@ fi])
dnl Checks for functions.
if test "x$enable_utf8" != xno; then
AC_CHECK_FUNCS(iswalnum iswpunct mblen mbstowcs mbtowc wctomb)
AC_CHECK_FUNCS(iswalpha iswalnum iswpunct mbstowcs wctomb)
fi
dnl Checks for available flags.
@ -435,11 +435,10 @@ AC_SUBST(CURSES_LIB)
if test "x$enable_utf8" != xno && \
test x$CURSES_LIB_WIDE = xyes && \
test x$ac_cv_func_iswalpha = xyes && \
test x$ac_cv_func_iswalnum = xyes && \
test x$ac_cv_func_iswpunct = xyes && \
test x$ac_cv_func_mblen = xyes && \
test x$ac_cv_func_mbstowcs = xyes && \
test x$ac_cv_func_mbtowc = xyes && \
test x$ac_cv_func_wctomb = xyes; then
AC_DEFINE(ENABLE_UTF8, 1, [Define this if your system has sufficient UTF-8 support.])
else