Get rid of autoconf

Relying on external dependencies to build such a small project as pick has
always been troublesome to me.  Instead, replace auto{conf,make} with a
shell-script and plain Makefile(s).

.gitignore

@@ -1,29 +1,3 @@
-*.o
-core*
-pick
-vgcore*
-
-# Generated by Autotools
-.deps
-INSTALL.md
-Makefile
-Makefile.in
-aclocal.m4
-autom4te.cache/
-compile
-config.guess
+Makefile.inc
 config.h
 config.log
-config.status
-config.sub
-configure
-depcomp
-install-sh
-missing
-stamp-h1
-.dirstamp
-test-driver
-test-suite.log
-tests/pick-test
-tests/*.log
-tests/*.trs

CONTRIBUTING.md

@@ -11,9 +11,8 @@ you agree to abide by its [Code of Conduct][conduct].
 2. Build and make sure all tests pass:
 
    ```sh
-   $ ./autogen.sh
    $ ./configure
-   $ make check
+   $ make test
    ```
 
 3. Make your changes.
@@ -56,45 +55,31 @@ Internal documentation on crafting a release.
 2. Update `CHANGELOG.md` and commit the change:
 
    ```sh
-   $ git commit -m 'Update CHANGELOG'
+   $ git commit -m 'update changelog'
    ```
 
-3. Update the version in `configure.ac`:
-
-   ```
-   AC_INIT([pick], [0.0.2], [[email protected]])
-   ```
-
-   ... and commit the change:
+3. Update the version in `Makefile` and commit the change:
 
    ```sh
-   $ git commit -m 'Update version to 0.0.2'
+   $ git commit -m 'update version to 0.0.2'
    ```
 
 4. Create and verify the tarball:
 
    ```sh
-   $ make distcheck
-   $ tar tvzf pick-0.0.2.tar.gz
-   ```
-
-5. Create and verify checksum:
-
-   ```sh
-   $ sha256 pick-0.0.2.tar.gz >pick-0.0.2.sha256
-   $ sha256 -c pick-0.0.2.sha256
+   $ make dist
    ```
 
-6. Tag and push:
+5. Tag and push:
 
    ```sh
    $ git tag v0.0.2
    $ git push --tags origin master
    ```
 
-7. [Announce the release on GitHub][announce].
+6. [Announce the release on GitHub][announce].
 
-8. Contact package maintainers:
+7. Contact package maintainers:
 
    * Aggelos Avgerinos <[email protected]> (Debian & Ubuntu)
    * Chunyang Xu <[email protected]> (MacPorts)

GNUmakefile

@@ -0,0 +1,4 @@
+.CURDIR=	${CURDIR}
+.OBJDIR=	${CURDIR}
+
+include ${.CURDIR}/Makefile

Makefile

@@ -0,0 +1,112 @@
+include ${.CURDIR}/Makefile.inc
+
+VERSION=	2.0.2
+
+PROG=	pick
+
+SRCS+= compat-pledge.c
+SRCS+= compat-reallocarray.c
+SRCS+= compat-strtonum.c
+SRCS+= pick.c
+
+OBJS=	${SRCS:.c=.o}
+DEPS=   ${SRCS:.c=.d}
+
+CFLAGS+=	${DEBUG}
+CFLAGS+=	-DVERSION=\"${VERSION}\"
+
+DISTFILES+=	CHANGELOG.md
+DISTFILES+=	CODE_OF_CONDUCT.md
+DISTFILES+=	CONTRIBUTING.md
+DISTFILES+=	GNUmakefile
+DISTFILES+=	LICENSE
+DISTFILES+=	Makefile
+DISTFILES+=	README.md
+DISTFILES+=	compat-pledge.c
+DISTFILES+=	compat-reallocarray.c
+DISTFILES+=	compat-strtonum.c
+DISTFILES+=	configure
+DISTFILES+=	pick.1
+DISTFILES+=	pick.c
+DISTFILES+=	tests/GNUmakefile
+DISTFILES+=	tests/Makefile
+DISTFILES+=	tests/README.md
+DISTFILES+=	tests/key-alt-enter.t
+DISTFILES+=	tests/key-backspace.t
+DISTFILES+=	tests/key-ctrl-a.t
+DISTFILES+=	tests/key-ctrl-c.t
+DISTFILES+=	tests/key-ctrl-e.t
+DISTFILES+=	tests/key-ctrl-k.t
+DISTFILES+=	tests/key-ctrl-l.t
+DISTFILES+=	tests/key-ctrl-o.t
+DISTFILES+=	tests/key-ctrl-u.t
+DISTFILES+=	tests/key-ctrl-w.t
+DISTFILES+=	tests/key-del.t
+DISTFILES+=	tests/key-end.t
+DISTFILES+=	tests/key-enter.t
+DISTFILES+=	tests/key-home.t
+DISTFILES+=	tests/key-left.t
+DISTFILES+=	tests/key-line-down.t
+DISTFILES+=	tests/key-line-up.t
+DISTFILES+=	tests/key-page-down.t
+DISTFILES+=	tests/key-page-up.t
+DISTFILES+=	tests/key-printable.t
+DISTFILES+=	tests/key-right.t
+DISTFILES+=	tests/key-unknown.t
+DISTFILES+=	tests/misc-match.t
+DISTFILES+=	tests/misc-realloc.t
+DISTFILES+=	tests/opt-d.t
+DISTFILES+=	tests/opt-h.t
+DISTFILES+=	tests/opt-k.t
+DISTFILES+=	tests/opt-o.t
+DISTFILES+=	tests/opt-q.t
+DISTFILES+=	tests/opt-s.t
+DISTFILES+=	tests/opt-unknown.t
+DISTFILES+=	tests/opt-v.t
+DISTFILES+=	tests/opt-x.t
+DISTFILES+=	tests/pick-test.c
+DISTFILES+=	tests/pick-test.sh
+
+PREFIX=	/usr/local
+
+all: ${PROG}
+
+${PROG}: ${OBJS}
+	${CC} ${DEBUG} -o ${PROG} ${OBJS} ${LDFLAGS}
+
+clean:
+	rm -f ${DEPS} ${OBJS} ${PROG}
+.PHONY: clean
+
+dist:
+	set -e; \
+	d=${PROG}-${VERSION}; \
+	mkdir $$d; \
+	for f in ${DISTFILES}; do \
+		mkdir -p $$d/`dirname $$f`; \
+		cp ${.CURDIR}/$$f $$d/$$f; \
+	done; \
+	tar czvf ${.CURDIR}/$$d.tar.gz $$d; \
+	(cd ${.CURDIR}; sha256 $$d.tar.gz >$$d.sha256); \
+	rm -r $$d
+.PHONY: dist
+
+distclean: clean
+	rm -f ${.CURDIR}/Makefile.inc ${.CURDIR}/config.h \
+		${.CURDIR}/config.log ${.CURDIR}/${PROG}-${VERSION}.tar.gz \
+		${.CURDIR}/${PROG}-${VERSION}.sha256
+.PHONY: distclean
+
+install: ${PROG}
+	@mkdir -p ${DESTDIR}${PREFIX}/bin
+	${INSTALL} ${PROG} ${DESTDIR}${PREFIX}/bin
+	@mkdir -p ${DESTDIR}${PREFIX}/man/man1
+	${INSTALL} ${.CURDIR}/pick.1 ${DESTDIR}${PREFIX}/man/man1
+.PHONY: install
+
+test: ${PROG}
+	${MAKE} -C ${.CURDIR}/tests \
+		"MALLOC_OPTIONS=${MALLOC_OPTIONS}" "PICK=${.OBJDIR}/${PROG}"
+.PHONY: test
+
+-include ${DEPS}

README.md

@@ -89,11 +89,10 @@ pkg_add pick
 
 ### From source
 
-Download the latest [release] and follow the bundled instructions in
-`INSTALL.md`.
-
-If you want to try the latest unreleased version,
-follow the instructions in [CONTRIBUTING.md][current].
+```sh
+./configure
+make install
+```
 
 ## Copyright
 

compat-pledge.c

@@ -0,0 +1,14 @@
+#include "config.h"
+
+int unused;
+
+#ifndef HAVE_PLEDGE
+
+int
+pledge(const char *promises __attribute__((__unused__)),
+    const char *execpromises __attribute__((__unused__)))
+{
+	return 0;
+}
+
+#endif /* !HAVE_PLEDGE */

compat-reallocarray.c

@@ -1,12 +1,5 @@
-#ifdef HAVE_CONFIG_H
 #include "config.h"
-#endif
 
-/*
- * This file needs a "translation unit" - it needs anything for the compiler to
- * compile. Since the point of this file is to not exist, declare an unused
- * variable here.
- */
 int unused;
 
 #ifndef HAVE_REALLOCARRAY

compat-strtonum.c

@@ -1,6 +1,4 @@
-#ifdef HAVE_CONFIG_H
 #include "config.h"
-#endif
 
 int unused;