[REGRESSION] Incorrect libcurses detection in 5.2.15 (on HP-UX)

[Osipov, Michael (IN IT IN)]

Folks,

while trying to configure and compile 5.2.15 on HP-UX it does not 
properly detect libcuses and fails to detect installed libreadline.
The regression is identical to the one I reported with readline: 
https://lists.gnu.org/archive/html/bug-readline/2023-08/msg00009.html

Here is a simple patch which works for me:
diff -ur configure configure
--- configure   2023-08-17 21:17:53 +0200
+++ configure   2023-08-17 21:23:41 +0200
@@ -5960,8 +5960,7 @@
 TERMCAP_LIB=
 TERMCAP_DEP=
 else
-# we assume ncurses is installed somewhere the linker can find it
-TERMCAP_LIB=-lncurses
+TERMCAP_LIB=-lcurses
 TERMCAP_DEP=
 fi
 
@@ -21584,8 +21583,7 @@
 TERMCAP_LIB=
 TERMCAP_DEP=
 else
-# we assume ncurses is installed somewhere the linker can find it
-TERMCAP_LIB=-lncurses
+TERMCAP_LIB=-lcurses
 TERMCAP_DEP=
 fi

So the source in aclocal.m4 needs to be fixed.

Result:
# ldd /opt/ports/bin/bash

/opt/ports/bin/bash:
        libreadline.so.8 =>     /opt/ports/lib/hpux32/libreadline.so.8
        libhistory.so.8 =>      /opt/ports/lib/hpux32/libhistory.so.8
        libxcurses.so.1 =>      /usr/lib/hpux32/libxcurses.so.1
        libintl.so.11 =>        /opt/ports/lib/hpux32/libintl.so.11
        libiconv.so.8 =>        /opt/ports/lib/hpux32/libiconv.so.8
        libdl.so.1 =>   /usr/lib/hpux32/libdl.so.1
        libc.so.1 =>    /usr/lib/hpux32/libc.so.1
        libc.so.1 =>    /usr/lib/hpux32/libc.so.1
        libdl.so.1 =>   /usr/lib/hpux32/libdl.so.1


Note that libcurses links to libxcurses.

Michael