[OE-core] [PATCH 1/3] gdb-common.inc: add PACKAGECONFIG for readline

[Robert Yang]

When compile with readline 5.2:
completer.o: In function `gdb_display_match_list':
completer.c:(.text+0x1c13): undefined reference to `_rl_completion_prefix_display_length'
completer.c:(.text+0x1ce8): undefined reference to `rl_sort_completion_matches'
collect2: ld returned 1 exit status

The --without-system-readline will make it work.

Signed-off-by: Robert Yang <liezhi.yang at windriver.com>
---
 meta/recipes-devtools/gdb/gdb-common.inc |    8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/meta/recipes-devtools/gdb/gdb-common.inc b/meta/recipes-devtools/gdb/gdb-common.inc
index 166ba8e..6baeb0b 100644
--- a/meta/recipes-devtools/gdb/gdb-common.inc
+++ b/meta/recipes-devtools/gdb/gdb-common.inc
@@ -2,7 +2,7 @@ SUMMARY = "GNU debugger"
 HOMEPAGE = "http://www.gnu.org/software/gdb/"
 LICENSE = "GPLv3+"
 SECTION = "devel"
-DEPENDS = "expat zlib ncurses readline ${LTTNGUST}"
+DEPENDS = "expat zlib ncurses ${LTTNGUST}"
 
 LTTNGUST = "lttng-ust"
 LTTNGUST_aarch64 = ""
@@ -40,13 +40,17 @@ EXTRA_OEMAKE = "'SUBDIRS=intl mmalloc libiberty opcodes bfd sim gdb etc utils'"
 EXPAT = "--with-expat --with-libexpat-prefix=${STAGING_DIR_HOST}"
 
 EXTRA_OECONF = "--disable-gdbtk --disable-tui --disable-x --disable-werror \
-                --with-curses --disable-multilib --with-system-readline --disable-sim \
+                --with-curses --disable-multilib --disable-sim \
                 --without-lzma --without-guile \
                 ${GDBPROPREFIX} ${EXPAT} \
                 ${@bb.utils.contains('DISTRO_FEATURES', 'multiarch', '--enable-64-bit-bfd', '', d)} \
                 --disable-rpath \
                "
 
+PACKAGECONFIG ??= "readline"
+# Use --without-system-readline to compile with readline 5.
+PACKAGECONFIG[readline] = "--with-system-readline,--without-system-readline,readline"
+
 GDBPROPREFIX = "--program-prefix=''"
 
 do_configure () {
-- 
1.7.9.5