[OE-core] [PATCH 1/2] ruby: make ext module fiddle can compile success

[changqing.li at windriver.com]

From: Changqing Li <changqing.li at windriver.com>

ext module fiddle depend on libffi, in ruby source tree,
there is in internal libffi in case target platfrom don't
install libffi, but autotools.bbclass delete configure
under libffi and not run autoreconf to regenerate one.so
we met this error:
ruby-2.5.3/ext/fiddle/libffi-3.2.1/configure: No such file or directory

the fix is add depend and extra_oeconf to use libffi in the system

Signed-off-by: Changqing Li <changqing.li at windriver.com>
---
 meta/recipes-devtools/ruby/ruby.inc      | 2 +-
 meta/recipes-devtools/ruby/ruby_2.5.3.bb | 1 +
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/meta/recipes-devtools/ruby/ruby.inc b/meta/recipes-devtools/ruby/ruby.inc
index eaf5d13..28e21fe 100644
--- a/meta/recipes-devtools/ruby/ruby.inc
+++ b/meta/recipes-devtools/ruby/ruby.inc
@@ -14,7 +14,7 @@ LIC_FILES_CHKSUM = "\
     file://LEGAL;md5=23a79bb4c1a40f6cc9bcb6f4e7c39799 \
 "
 
-DEPENDS = "ruby-native zlib openssl tcl libyaml gdbm readline"
+DEPENDS = "ruby-native zlib openssl tcl libyaml gdbm readline libffi"
 DEPENDS_class-native = "openssl-native libyaml-native readline-native"
 
 SHRT_VER = "${@oe.utils.trim_version("${PV}", 2)}"
diff --git a/meta/recipes-devtools/ruby/ruby_2.5.3.bb b/meta/recipes-devtools/ruby/ruby_2.5.3.bb
index 3fb427e..173b44b 100644
--- a/meta/recipes-devtools/ruby/ruby_2.5.3.bb
+++ b/meta/recipes-devtools/ruby/ruby_2.5.3.bb
@@ -28,6 +28,7 @@ EXTRA_OECONF = "\
     --disable-dtrace \
     --enable-shared \
     --enable-load-relative \
+    --with-pkg-config=pkg-config \
 "
 
 do_install() {
-- 
2.7.4