From 7bbf2046fbcf4416ec226ecb3a2b4c6a5c263298 Mon Sep 17 00:00:00 2001
From: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
Date: Sun, 22 Apr 2018 23:06:28 +0200
Subject: [PATCH] configure.ac, readline.pc.in: fix Requires.private value

The provided readline.pc.in hardcodes the fact that readline depends
on the tinfo library. However, different termcap implementation are
supported beyond tinfo. This commit improves the configure.ac script
to define a TERMCAP_PKG_CONFIG_LIB variable, which is then used in
readline.pc.in.

This for example allows the generated readline.pc to properly contain
"Requires.private: ncurses" when ncurses is used as the termcap
implementation.

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
---
 configure.ac   | 8 ++++++++
 readline.pc.in | 2 +-
 2 files changed, 9 insertions(+), 1 deletion(-)

diff --git a/configure.ac b/configure.ac
index fd0cec4..9f85f37 100644
--- a/configure.ac
+++ b/configure.ac
@@ -276,6 +276,13 @@ case "$BUILD_DIR" in
 *)	;;
 esac
 
+case "$TERMCAP_LIB" in
+-ltinfo)  TERMCAP_PKG_CONFIG_LIB=tinfo ;;
+-lcurses) TERMCAP_PKG_CONFIG_LIB=ncurses ;;
+-lncurses) TERMCAP_PKG_CONFIG_LIB=ncurses ;;
+-ltermcap) TERMCAP_PKG_CONFIG_LIB=termcap ;;
+esac
+
 AC_SUBST(BUILD_DIR)
 
 AC_SUBST(CFLAGS)
@@ -292,6 +299,7 @@ AC_SUBST(host_os)
 AC_SUBST(LIBVERSION)
 
 AC_SUBST(TERMCAP_LIB)
+AC_SUBST(TERMCAP_PKG_CONFIG_LIB)
 
 AC_OUTPUT([Makefile doc/Makefile examples/Makefile shlib/Makefile readline.pc],
 [
diff --git a/readline.pc.in b/readline.pc.in
index fbfca8a..a7f2cf3 100644
--- a/readline.pc.in
+++ b/readline.pc.in
@@ -7,6 +7,6 @@ Name: Readline
 Description: Gnu Readline library for command line editing
 URL: http://tiswww.cwru.edu/php/chet/readline/rltop.html
 Version: @LIBVERSION@
-Requires.private: tinfo
+Requires.private: @TERMCAP_PKG_CONFIG_LIB@
 Libs: -L${libdir} -lreadline
 Cflags: -I${includedir}/readline
-- 
2.14.3