First check in

Makefile

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+# This file is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License version 2 as 
+# published by the Free Software Foundation here:
+# (http://www.gnu.org/licenses/gpl-2.0.html)
+# 
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+
+DEPENDS =
+ARCH = x86_64
+URL = http://ex-vi.sourceforge.net/
+DESC = The vi editor is one of the most common text editors on Unix.
+SNAPVER = sr0
+
+ARCHIVE := $(PWD)/SRC/$(shell ls SRC|egrep '(bz2|gz|tar|xz)$$'|tail -1)
+TYPE := $(shell file -ib $(ARCHIVE)|cut -d';' -f1|tr -d '\n')
+SRCDIR := $(shell tar -tf $(ARCHIVE)|head -1|sed 's/\/.*//')
+PATCHDIR := $(PWD)/SRC/patches
+VERSION := $(shell echo $(SRCDIR)|egrep -o '\-[0-9].*'|sed 's/^-//')$(SNAPVER)
+
+MAKE = make
+MAKEINST = make install
+SNAPHACKS = 
+
+include /usr/share/snap/Makefile.snaplinux
+
+$(SRCDIR)/Makefile: $(ARCHIVE)
+	@if [ '$(TYPE)' == 'application/x-bzip2' ]; then \
+		tar -jxf $(ARCHIVE); \
+	elif [ '$(TYPE)' == 'application/x-gzip' ]; then \
+		tar -zxf $(ARCHIVE); \
+	elif [ '$(TYPE)' == 'application/x-tar' ]; then \
+		tar -xf $(ARCHIVE); \
+	elif [ '$(TYPE)' == 'application/x-xz' ]; then \
+		tar -xf $(ARCHIVE); \
+	else \
+		echo 'Unable to determine archive type'; \
+		exit 1; \
+	fi
+	@touch $(SRCDIR)/Makefile
+
+$(SRCDIR)/ex: $(SRCDIR)/Makefile
+	@cd $(SRCDIR) && for patch in `find $(PATCHDIR) -name \*.patch`; do \
+		patch --verbose -Np1 -i $$patch; \
+	done
+	@cd $(SRCDIR); \
+	$(MAKE)
+
+$(ROOT): $(SRCDIR)/ex
+	@if [ -d $(ROOT) ]; then \
+		touch $(ROOT); \
+	else \
+		mkdir -v $(ROOT); \
+	fi
+
+	@cd $(SRCDIR); \
+	$(MAKEINST) DESTDIR=$(ROOT)
+
+	@$(SNAPHACKS)
+
+test: $(ROOT)
+	@cd $(SRCDIR); \
+	make test
+
+clean:
+	@rm -rvf $(ROOT) \
+		$(SNAPINFO) \
+		$(MANIFEST) \
+		$(FILES) \
+		$(SRCDIR)
+

SNAP/README

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+This is the directory where the manifest, snapinfo, and files.tar.gz
+files will be created. It is also where the usher file should be
+placed if it is required by the package.

SRC/ex-050325.tar.bz2.sha1

@@ -0,0 +1 @@
+573501d15fa4be59f136641957c7f893e86bac82

SRC/patches/01_enable-ncurses.patch

@@ -0,0 +1,12 @@
+diff -Naur a/Makefile b/Makefile
+--- a/Makefile	2005-03-24 17:50:09.000000000 -0600
++++ b/Makefile	2016-09-28 11:32:13.840000000 -0500
+@@ -211,7 +211,7 @@
+ # provide a good termcap file, or when setting the TERMCAP environment
+ # variable is deemed sufficient, is the included 2.11BSD termcap library.
+ #
+-TERMLIB	= termlib
++TERMLIB	= ncurses
+ 
+ #
+ # Since ex uses sbrk() internally, a conflict with the libc's version of

SRC/patches/02_remove-install-path.patch

@@ -0,0 +1,12 @@
+diff -Naur a/Makefile b/Makefile
+--- a/Makefile	2005-03-24 17:50:09.000000000 -0600
++++ b/Makefile	2016-09-28 11:37:16.520000000 -0500
+@@ -94,7 +94,7 @@
+ #
+ # A BSD-like install program. GNU install will fit well here, too.
+ #
+-INSTALL		= /usr/ucb/install
++INSTALL		= install
+ 
+ #
+ # Compiler and linker flags.

SRC/patches/03_set-prefix.patch

@@ -0,0 +1,12 @@
+diff -Nuar a/Makefile b/Makefile
+--- a/Makefile	2005-03-24 17:50:09.000000000 -0600
++++ b/Makefile	2016-09-28 12:31:21.136000000 -0500
+@@ -79,7 +79,7 @@
+ # Destinations for installation. $(PRESERVEDIR) is used for recovery files.
+ # It will get mode 1777.
+ #
+-PREFIX		= /usr/local
++PREFIX		= /usr
+ BINDIR		= $(PREFIX)/bin
+ LIBEXECDIR	= $(PREFIX)/libexec
+ MANDIR		= $(PREFIX)/share/man

SRC/patches/README

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+Place any patch files here and preface each with a number indicating
+the order of execution. Patch files are expected to use a .patch extension.