https://midnight-commander.org/ticket/4070

From 30fd157a73f148dbc150c18b206b85e1a4a93e9c Mon Sep 17 00:00:00 2001
From: Sergei Trofimovich <slyfox@gentoo.org>
Date: Tue, 3 Mar 2020 09:26:12 +0000
Subject: [PATCH] misc/Makefile.am: install 'mc.lib' only once (#4070)

Before the change `mc.lib` was installed twice due to being
in two `_DATA` variables:

```
dist_pkgdata_DATA = \
        mc.lib

pkgdata_DATA = \
        $(dist_pkgdata_DATA) \
        $(PKGDATA_OUT)
```

This causes occasional install failures when two parallel
`/usr/bin/install` calls race in installing the file:

```
$ make -j20 DESTDIR=/var/tmp/portage/app-misc/mc-4.8.24/image install
...
 /usr/lib/portage/python3.6/ebuild-helpers/xattr/install \
    -c -m 644 mc.lib '/var/tmp/portage/app-misc/mc-4.8.24/image/usr/share/mc'
 /usr/lib/portage/python3.6/ebuild-helpers/xattr/install \
    -c -m 644 mc.lib mc.charsets '/var/tmp/portage/app-misc/mc-4.8.24/image/usr/share/mc'
...
 /usr/bin/install: cannot create regular file
   '/var/tmp/portage/app-misc/mc-4.8.24/image/usr/share/mc/mc.lib': File exists
```

After the change `mc.lib` is present only in `dist_pkgdata_DATA`.

Signed-off-by: Sergei Trofimovich <slyfox@gentoo.org>
---
 misc/Makefile.am | 2 --
 1 file changed, 2 deletions(-)

--- a/misc/Makefile.am
+++ b/misc/Makefile.am
@@ -17,7 +17,7 @@ dist_pkgdata_DATA = \
 	mc.lib
 
 pkgdata_DATA = \
-	$(dist_pkgdata_DATA) \
+	\
 	$(PKGDATA_OUT)
 
 SCRIPTS_IN = \
@@ -54,7 +53,7 @@ EXTRA_DIST = \
 	$(LIBFILES_SCRIPT) \
 	$(SCRIPTS_IN) \
 	$(noinst_DATA) \
-	$(dist_pkgdata_DATA) \
+	\
 	$(PKGDATA_IN)
 
 install-data-hook:
--- a/misc/Makefile.in
+++ b/misc/Makefile.in
@@ -472,7 +473,7 @@ dist_pkgdata_DATA = \
 	mc.lib
 
 pkgdata_DATA = \
-	$(dist_pkgdata_DATA) \
+	\
 	$(PKGDATA_OUT)
 
 SCRIPTS_IN = \
@@ -508,7 +509,7 @@ EXTRA_DIST = \
 	$(LIBFILES_SCRIPT) \
 	$(SCRIPTS_IN) \
 	$(noinst_DATA) \
-	$(dist_pkgdata_DATA) \
+	\
 	$(PKGDATA_IN)
 
 all: all-recursive
-- 
2.25.1