systemd: depend on libgcrypt

Although libgcrypt support is optional, its development files are
are always required to expand AM_PATH_LIBGCRYPT.  Build might fails else
with

| libtoolize: copying file `m4/lt~obsolete.m4'
| configure.ac:446: warning: macro 'AM_PATH_LIBGCRYPT' not found in library
| ...
| configure.ac:446: error: possibly undefined macro: AM_PATH_LIBGCRYPT
| autoreconf: .../autoconf failed with exit status: 1
| + bbfatal 'autoreconf execution failed.'
| + echo 'ERROR: autoreconf execution failed.'

(From OE-Core rev: c7fe1d0085339e55566989b96d4d48412f0fa47d)

Signed-off-by: Enrico Scholz <enrico.scholz@sigma-chemnitz.de>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

1 files changed, 3 insertions, 0 deletions

diff --git a/meta/recipes-core/systemd/systemd_199.bb b/meta/recipes-core/systemd/systemd_199.bb
index 159dfd8b86..43463c56fb 100644
--- a/meta/recipes-core/systemd/systemd_199.bb
+++ b/meta/recipes-core/systemd/systemd_199.bb
@@ -50,6 +50,9 @@ GTKDOC_DOCDIR = "${S}/docs/"
 PACKAGECONFIG ??= "xz"
 # Sign the journal for anti-tampering
 PACKAGECONFIG[gcrypt] = "--enable-gcrypt,--disable-gcrypt,libgcrypt"
+# regardless of PACKAGECONFIG, libgcrypt is always required to expand
+# the AM_PATH_LIBGCRYPT autoconf macro
+DEPENDS += "libgcrypt"
 # Compress the journal
 PACKAGECONFIG[xz] = "--enable-xz,--disable-xz,xz"