Nothing ever depended on libecpg_compat.so.3 in Fedora, so don't build
it now, at least till somebody explicitly requests that.

Patch-Source: https://src.fedoraproject.org/rpms/libecpg/blob/f35/f/libecpg-10.5-no-compat-lib.patch

diff --git a/src/interfaces/ecpg/Makefile b/src/interfaces/ecpg/Makefile
index 41460a1..cc3dd37 100644
--- a/src/interfaces/ecpg/Makefile
+++ b/src/interfaces/ecpg/Makefile
@@ -2,7 +2,7 @@ subdir = src/interfaces/ecpg
 top_builddir = ../../..
 include $(top_builddir)/src/Makefile.global
 
-SUBDIRS = include pgtypeslib ecpglib compatlib preproc
+SUBDIRS = include pgtypeslib ecpglib preproc
 
 # Suppress parallel build of subdirectories to avoid a bug in GNU make 3.82, cf
 # http://savannah.gnu.org/bugs/?30653