From: Lionel Sambuc <lionel@minix3.org>
Date: Fri, 16 Nov 2012 16:03:15 +0000 (+0100)
Subject: Do not overwrite vi and ex links by default
X-Git-Tag: v3.2.1~199
X-Git-Url: http://zhaoyanbai.com/repos/%22http:/www.isc.org/icons/man.dnssec-keygen.html?a=commitdiff_plain;h=refs%2Fchanges%2F22%2F122%2F2;p=minix.git

Do not overwrite vi and ex links by default

Revert (and document) to the old behaviour of the elvis Makefile.

Change-Id: I800dba23f5c35d4c1676974962806dd824659539
---

diff --git a/commands/elvis/Makefile b/commands/elvis/Makefile
index 8ecabd1e7..b0f8d85eb 100644
--- a/commands/elvis/Makefile
+++ b/commands/elvis/Makefile
@@ -15,7 +15,8 @@ CPPFLAGS+= -w -DCRUNCH \
 	-DNO_MODELINE -DNO_OPTCOLS -DNO_DIGRAPH -DNO_EXTENSIONS \
 	-DNO_ERRLIST -DNO_FKEY -DNO_VISIBLE -DNO_COLOR -DNO_POPUP
 
-# LSC Force usage of local getline
+# LSC Force usage of local getline, this is required here as long as
+# we do not fix elvis.
 CPPFLAGS+= -D__NBSD_LIBC
 
 ###########################################################################
@@ -28,8 +29,16 @@ SRCS.elvis= blk.c cmd1.c cmd2.c ctype.c curses.c cut.c ex.c input.c \
    unix.c vars.c vcmd.c vi.c
 
 BINDIR= /usr/bin
+
+# Do not overwrite vi and ex if they already exist, only install the links
+# as a default fallback in their absence
+.if !exists(${DESTDIR}/${BINDIR}/vi)
 LINKS+= ${BINDIR}/elvis ${BINDIR}/vi
+.endif
+
+.if !exists(${DESTDIR}/${BINDIR}/ex)
 LINKS+= ${BINDIR}/elvis ${BINDIR}/ex
+.endif
 
 MAN.elvis=
 MAN.ctags=