[PATCH 1/4] kconfig/lxdialog: rationalise the include paths where to find {.n}curses{,w}.h

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The current code does this:

    if [ -f /usr/include/ncursesw/curses.h ]; then
        echo '-I/usr/include/ncursesw -DCURSES_LOC="<ncursesw/curses.h>"'
    elif [ -f /usr/include/ncurses/ncurses.h ]; then
        echo '-I/usr/include/ncurses -DCURSES_LOC="<ncurses.h>"'
    elif [ -f /usr/include/ncurses/curses.h ]; then
        echo '-I/usr/include/ncurses -DCURSES_LOC="<ncurses/curses.h>"'
    [...]

This is merely inconsistent:
  - adding the full path to the directory in the -I directive,
  - especially since that path is already a sub-path of the system
    include path,
  - and then repeating the sub-path in the #include directive.

Rationalise each include directive:
  - only use the filename in the #include directive,
  - keep the -I directives: they are always searched for before the
    system include path; this ensures the correct header is used.

Using the -I directives and the filename-only in #include is more in
line with how pkg-config behaves, eg.:
    $ pkg-config --cflags ncursesw
    -I/usr/include/ncursesw

This paves the way for using pkg-config for CFLAGS, too, now we use it
to find the libraries.

Signed-off-by: "Yann E. MORIN" <yann.morin.1998@xxxxxxx>
---
 scripts/kconfig/lxdialog/check-lxdialog.sh |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/scripts/kconfig/lxdialog/check-lxdialog.sh b/scripts/kconfig/lxdialog/check-lxdialog.sh
index 782d200..9d2a4c5 100644
--- a/scripts/kconfig/lxdialog/check-lxdialog.sh
+++ b/scripts/kconfig/lxdialog/check-lxdialog.sh
@@ -22,12 +22,12 @@ ldflags()
 ccflags()
 {
 	if [ -f /usr/include/ncursesw/curses.h ]; then
-		echo '-I/usr/include/ncursesw -DCURSES_LOC="<ncursesw/curses.h>"'
+		echo '-I/usr/include/ncursesw -DCURSES_LOC="<curses.h>"'
 		echo ' -DNCURSES_WIDECHAR=1'
 	elif [ -f /usr/include/ncurses/ncurses.h ]; then
 		echo '-I/usr/include/ncurses -DCURSES_LOC="<ncurses.h>"'
 	elif [ -f /usr/include/ncurses/curses.h ]; then
-		echo '-I/usr/include/ncurses -DCURSES_LOC="<ncurses/curses.h>"'
+		echo '-I/usr/include/ncurses -DCURSES_LOC="<curses.h>"'
 	elif [ -f /usr/include/ncurses.h ]; then
 		echo '-DCURSES_LOC="<ncurses.h>"'
 	else
-- 
1.7.2.5

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