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.'

Signed-off-by: Enrico Scholz <[email protected]>
---
 meta/recipes-core/systemd/systemd_199.bb | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/meta/recipes-core/systemd/systemd_199.bb 
b/meta/recipes-core/systemd/systemd_199.bb
index 4fabcc9..fe745a6 100644
--- a/meta/recipes-core/systemd/systemd_199.bb
+++ b/meta/recipes-core/systemd/systemd_199.bb
@@ -49,6 +49,9 @@ 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"
 
-- 
1.8.1.4


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