libgpg-err build error

[e9hack]

Hi,

I've trouble to build libgpg-err since the update from 1.39 to 1.42. Compilation does fail because the auto generated file gpg-error.h contains wrong syntax in macro GPGRT_LOCK_INITIALIZER:

#define GPGRT_LOCK_INITIALIZER {1,{{\c
0\c
,\0c
0\c
,\0c
....

The sequence is generated by gen-lock-obj.sh. I patched out the wrong generation of macros ECHO_C and ECHO_N:

--- a/src/gen-lock-obj.sh   2021-03-04 11:05:29.000000000 +0100
+++ b/src/gen-lock-obj.sh   2021-05-13 08:14:52.675832305 +0200
@@ -39,8 +39,8 @@
  #

  if test -n `echo -n`; then
-    ECHO_C='\c'
-    ECHO_N=''
+    ECHO_C=''
+    ECHO_N='-n'
  else
      ECHO_C=''
      ECHO_N='-n'

Any idea why this does fail? My build system is openSuse Leap 15.2, running in Oracle VirtualBox on Windows.

Regards,
Hartmut