[Bug 16051] New: "make menuconfig" fails to find ncurses library installed by package manager on Fedora

[bugzilla at busybox.net]

https://bugs.busybox.net/show_bug.cgi?id=16051

            Bug ID: 16051
           Summary: "make menuconfig" fails to find ncurses library
                    installed by package manager on Fedora
           Product: Busybox
           Version: 1.36.x
          Hardware: All
                OS: Linux
            Status: NEW
          Severity: normal
          Priority: P5
         Component: Other
          Assignee: unassigned at busybox.net
          Reporter: hunterwnorman at gmail.com
                CC: busybox-cvs at busybox.net
  Target Milestone: ---

I tried configuring a BusyBox install on a new Fedora system where I installed
ncurses like so: "sudo dnf install ncurses-devel" and I got this error when
running "make menuconfig":

 *** Unable to find the ncurses libraries or the
 *** required header files.
 *** 'make menuconfig' requires the ncurses libraries.
 *** 
 *** Install ncurses (ncurses-devel) and try again.
 *** 
make[2]: ***
[/home/test/kdev/busybox-1.36.1/scripts/kconfig/lxdialog/Makefile:15:
scripts/kconfig/lxdialog/dochecklxdialog] Error 1
make[1]: *** [/home/test/kdev/busybox-1.36.1/scripts/kconfig/Makefile:14:
menuconfig] Error 2
make: *** [Makefile:444: menuconfig] Error 2

After investigating, I modified the file "check-lxdialog.sh" at line 50 in the
check() function:

Before:

check() {
        $cc -x c - -o $tmp 2>/dev/null <<'EOF'
#include CURSES_LOC
main() {}
EOF
        if [ $? != 0 ]; then
            echo " *** Unable to find the ncurses libraries or the"       1>&2
            echo " *** required header files."                            1>&2
            echo " *** 'make menuconfig' requires the ncurses libraries." 1>&2
            echo " *** "                                                  1>&2
            echo " *** Install ncurses (ncurses-devel) and try again."    1>&2
            echo " *** "                                                  1>&2
            exit 1
        fi
}


After:

check() {
        $cc -x c - -o $tmp 2>/dev/null <<'EOF'
#include CURSES_LOC
int main() {}
EOF
        if [ $? != 0 ]; then
            echo " *** Unable to find the ncurses libraries or the"       1>&2
            echo " *** required header files."                            1>&2
            echo " *** 'make menuconfig' requires the ncurses libraries." 1>&2
            echo " *** "                                                  1>&2
            echo " *** Install ncurses (ncurses-devel) and try again."    1>&2
            echo " *** "                                                  1>&2
            exit 1
        fi
}

Making this modification caused the ncurses library to be found properly and I
was able to run "make menuconfig" successfully.

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