"-I/usr/include/" in .pc

[Daiki Ueno]

Hello,

When ncurses is compiled with:

  ./configure --enable-pc-files --includedir=/usr/include/foobar

The generated PC files contain superfluous -I/usr/include/:

  misc/formw.pc:Cflags:  -D_GNU_SOURCE -I/usr/include/ -I${includedir}
  misc/menuw.pc:Cflags:  -D_GNU_SOURCE -I/usr/include/ -I${includedir}
  misc/ncurses++w.pc:Cflags:  -D_GNU_SOURCE -I/usr/include/ -I${includedir}
  misc/ncursesw.pc:Cflags:  -D_GNU_SOURCE -I/usr/include/ -I${includedir}
  misc/panelw.pc:Cflags:  -D_GNU_SOURCE -I/usr/include/ -I${includedir}

Since the gen-pkgconfig script checks for "$includedir" !=
"/usr/include", I suspect that they are mistakenly added, because of the
final "/".  How about the following change?

--- misc/gen-pkgconfig.in~      2015-06-29 17:30:16.621104506 +0900
+++ misc/gen-pkgconfig.in       2015-06-29 17:30:41.429276349 +0900
@@ -66,7 +66,7 @@
 
 CFLAGS="@PKG_CFLAGS@"
 if test "$includedir" != "/usr/include" ; then
-       includetop=`echo "$includedir" | sed -e 's,/include/[^/]*$,/include/,'`
+       includetop=`echo "$includedir" | sed -e 's,/include/[^/]*$,/include,'`
        test "$includetop" = "/usr/include" && includetop="$includedir"
        if test "x$includetop" != "$includedir"
        then

Regards,
-- 
Daiki Ueno