package/util-linux: fix detection of ncurses

the configure script seems to use the NCURSES6_CONFIG variable, however it will still check for a system ncurses6-config and prefer this script if available.

Change to using ac_cv_prog_NCURSES[W]6_CONFIG override which works always

---
 package/util-linux/util-linux.mk | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

index 4a40d5afec..4e866d86c9 100644
@@ -77,11 +77,9 @@ endif
 ifeq ($(BR2_PACKAGE_NCURSES),y)
 UTIL_LINUX_DEPENDENCIES += ncurses
 ifeq ($(BR2_PACKAGE_NCURSES_WCHAR),y)
-UTIL_LINUX_CONF_OPTS += --with-ncursesw
-UTIL_LINUX_CONF_ENV += NCURSESW6_CONFIG=$(STAGING_DIR)/usr/bin/$(NCURSES_CONFIG_SCRIPTS)
+UTIL_LINUX_CONF_OPTS += --with-ncursesw ac_cv_prog_NCURSESW6_CONFIG=$(STAGING_DIR)/usr/bin/$(NCURSES_CONFIG_SCRIPTS)
 else
-UTIL_LINUX_CONF_OPTS += --without-ncursesw --with-ncurses --disable-widechar
-UTIL_LINUX_CONF_ENV += NCURSES6_CONFIG=$(STAGING_DIR)/usr/bin/$(NCURSES_CONFIG_SCRIPTS)
+UTIL_LINUX_CONF_OPTS += --without-ncursesw --with-ncurses --disable-widechar ac_cv_prog_NCURSES6_CONFIG=$(STAGING_DIR)/usr/bin/$(NCURSES_CONFIG_SCRIPTS)
 endif
 else
 ifeq ($(BR2_USE_WCHAR),y)

2.39.2

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Where do you see that? Looking at configure I see the normal ac_cv_prog_FOO / check FOO / fallback to program:

if test ${ac_cv_prog_NCURSESW6_CONFIG+y}
then :
printf %s "(cached) " >&6
else $as_nop
if test -n "$NCURSESW6_CONFIG"; then ac_cv_prog_NCURSESW6_CONFIG="$NCURSESW6_CONFIG" # Let the user override the test.
else
as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
for as_dir in $PATH
do
IFS=$as_save_IFS
case $as_dir in #(((

    '') as_dir=./ ;;
    */) ;;
    *) as_dir=$as_dir/ ;;
  esac
    for ac_exec_ext in '' $ac_executable_extensions; do
  if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
    ac_cv_prog_NCURSESW6_CONFIG="${ac_tool_prefix}ncursesw6-config"
    printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
    break 2

fi
done

What is the error you are seeing exactly?

Bye, Peter Korsgaard
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Am Mi., 6. Sept. 2023 um 19:20 Uhr schrieb Peter Korsgaard <[email protected]>:

I see in the config log, that buildroots ncursesw6-config is used, and then following that /usr/bin/ncursesw6-config is detected. Then the build fails as libtinfo.so is missing.

By setting ac_cv_prog_NCURSESW6_CONFIG (applying this patch),

I see in the config log, that buildroots ncursesw6-config is used. Then the build succeeds.

If you asked me about where the error is buried in configure hell-script, I demand the certainly following psychological harm compensated.

Norbert
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