Update ChangeLog and bump version for v1.2.4 release

Signed-off-by: Joachim Nilsson <troglobit@gmail.com>

.travis.yml

@@ -20,4 +20,8 @@ addons:
     build_command: "make"
     branch_pattern: dev
 
-script: make
+# We don't use configure, so we must define our own build script.
+script:
+  - make distclean
+  - make -j5
+  - make test

CHANGELOG

@@ -1 +0,0 @@
-CHANGELOG.md

ChangeLog

@@ -0,0 +1 @@
+ChangeLog.md

ChangeLog.md

@@ -3,6 +3,31 @@ Change Log
 
 All notable changes to the project are documented in this file.
 
+[v1.2.4] - 2015-11-23
+---------------------
+
+### Fixes
+
+- Do not allow `VERSION` to be overloaded by build system.
+- Make sure we don't inherit `LDFLAGS` from environment.
+
+
+[v1.2.3] - 2015-09-17
+---------------------
+
+Very minor release.
+
+### Changes
+- [README.md][] updates, mostly cleanup and readability improvements
+- `make test` now runs the test case, on behalf of Travis-CI
+- Renamed CHANGELOG.md to [ChangeLog.md][]
+- Dropped [TODO.md][] from distribution archives, only for devs
+
+### Fixes
+- Lots of Markdown syntax fixes in both README and ChangeLog
+- Silence annoying warning from newer GNU ar in Ubuntu 15.10
+
+
 [v1.2.2] - 2015-08-30
 ---------------------
 
@@ -64,7 +89,7 @@ Massively improved error handling.
   all watchers when an error count reaches a MAX value -- handles stale
   descriptors or cases when kernel does not notice updated descriptors.
 - Return error when stopping a watcher fails.
-- Update [README.md] with new `uev_*_start()` functions.
+- Update [README.md][] with new `uev_*_start()` functions.
 - Bump dev version to 1.1 due to the number of significant changes.
 
 ### Fixes
@@ -84,9 +109,9 @@ Massively improved error handling.
 - Renamed `main.c` to `uev.c`
 - Move examples to `examples/` subdirectory
 - Simplify automatic dependency calculation
-- Add [TODO.md] for wishlist items
-- Add [CHANGELOG.md], attempt to align with http://keepachangelog.com
-- Further updates to [README.md]
+- Add [TODO.md][] for wishlist items
+- Add [CHANGELOG.md][ChangeLog.md], to align with http://keepachangelog.com
+- Further updates to [README.md][]
 
 
 [v1.0.4] - 2015-01-24
@@ -98,7 +123,7 @@ Release mainly targeted for [Finit development](https://github.com/troglobit/fin
 
 ### Changes
 * `test.c` has been simplified/clarified
-* Further updates to [README.md]
+* Further updates to [README.md][]
 * Minor update to Makefile, change how build progress is echoed
 
 
@@ -108,7 +133,7 @@ Release mainly targeted for [Finit development](https://github.com/troglobit/fin
 This is a very minor release, with a strong focus on documentation. 
 
 ### Changes
-- [README.md], massively updated
+- [README.md][], massively updated
 - API documentation, updated
 - Travis CI integration added, https://travis-ci.org/troglobit/libuev
 - Coverity Scan integration, https://scan.coverity.com/projects/3846
@@ -126,8 +151,8 @@ This is a very minor release, with a strong focus on documentation.
 ---------------------
 
 ### Changes
-- Cleanup and rewrite of [README.md] after first audit by @vonj
-- Added API and example section to [README.md]
+- Cleanup and rewrite of [README.md][] after first audit by @vonj
+- Added API and example section to [README.md][]
 - New [joystick.c] example added
 - `main.c:uev_run()`: Document mysterious flags parameter
 
@@ -146,17 +171,20 @@ First release in the new guise and API.
 - Reindent to use Linux KNF
 - Change library name to libuev
 - Lua support removed
-- Make sure to state the [MIT license] correctly in all files
-- Import [Niels Provos]' `bench.c`, the [libev version]
+- Make sure to state the [MIT license][] correctly in all files
+- Import [Niels Provos][]' `bench.c`, the [libev version][]
 
 
 v0.0.1 - 2012-03-17
 -------------------
 
-[Initial announcement] of [libuevent] by [Flemming Madsen] to the Lua
-users mailing list.
+[Initial announcement][] of [libuevent][] by [Flemming Madsen][] to the
+Lua users mailing list.
 
-[UNRELEASED]: https://github.com/troglobit/libuev/compare/v1.2.1...HEAD
+
+[UNRELEASED]: https://github.com/troglobit/libuev/compare/v1.2.3...HEAD
+[v1.2.3]: https://github.com/troglobit/libuev/compare/v1.2.2...v1.2.3
+[v1.2.2]: https://github.com/troglobit/libuev/compare/v1.2.1...v1.2.2
 [v1.2.1]: https://github.com/troglobit/libuev/compare/v1.2.0...v1.2.1
 [v1.2.0]: https://github.com/troglobit/libuev/compare/v1.1.0...v1.2.0
 [v1.1.0]: https://github.com/troglobit/libuev/compare/v1.0.5...v1.1.0
@@ -168,7 +196,7 @@ users mailing list.
 [v1.0.0]: https://github.com/troglobit/libuev/compare/v0.0.1...v1.0.0
 [TODO.md]: https://github.com/troglobit/libuev/blob/master/TODO.md
 [README.md]: https://github.com/troglobit/libuev/blob/master/README.md
-[CHANGLOG.md]: https://github.com/troglobit/libuev/blob/master/CHANGELOG.md
+[ChangeLog.md]: https://github.com/troglobit/libuev/blob/master/ChangeLog.md
 [joystick.c]: https://github.com/troglobit/libuev/blob/master/joystick.c
 [Niels Provos]: http://en.wikipedia.org/wiki/Niels_Provos
 [MIT license]: http://en.wikipedia.org/wiki/MIT_License

Makefile

@@ -27,7 +27,7 @@
 ROOTDIR    ?= $(shell pwd)
 
 #VERSION    = $(shell git tag -l | tail -1)
-VERSION    ?= 1.2.2
+VERSION     = 1.2.4
 NAME        = libuev
 PKG         = $(NAME)-$(VERSION)
 ARCHIVE     = $(PKG).tar.xz
@@ -42,10 +42,11 @@ STRIPINST  := $(INSTALL) -s --strip-program=$(CROSS)strip -m 0755
 CFLAGS     += -fPIC
 CFLAGS     += -Os
 CPPFLAGS   += -W -Wall -Werror
+LDFLAGS     = $(EXTRA_LDFLAGS)
 ARFLAGS     = crus
 MAKEFLAGS   = --no-print-directory --silent
 
-DISTFILES   = README CHANGELOG TODO LICENSE
+DISTFILES   = README ChangeLog LICENSE
 HEADERS     = uev.h private.h queue.h
 OBJS       := uev.o io.o timer.o signal.o
 SRCS       := $(OBJS:.o=.c)
@@ -82,7 +83,7 @@ $(SOLIB): Makefile $(OBJS)
 
 $(STATICLIB): Makefile $(OBJS)
 	@printf "  ARCHIVE $@\n"
-	@$(AR) $(ARFLAGS) $@ $(OBJS)
+	@$(AR) $(ARFLAGS) $@ $(OBJS) 2>/dev/null
 
 install-exec: all
 	@printf "  INSTALL $(DESTDIR)$(libdir)/$(SOLIB)\n"
@@ -126,8 +127,9 @@ bench: Makefile $(STATICLIB)
 examples: all
 	@$(MAKE) -C examples
 
-test joystick:
+test joystick: all
 	@$(MAKE) -C examples $@
+	@./examples/$@
 
 # Runs Clang scan-build on the whole tree
 check: clean

README.md

@@ -1,6 +1,6 @@
 libuEv | Simple event loop for Linux
 ====================================
-[![Travis Status]][Travis] [![Coverity Status]][Coverity Scan]
+[![Travis Status][]][Travis] [![Coverity Status][]][Coverity Scan]
 
 
 Table of Contents
@@ -8,7 +8,11 @@ Table of Contents
 
 * [Introduction](#introduction)
 * [API](#api)
-* [Example](#example)
+  * [Create an Event Context](#create-an-event-context)
+  * [Register an Event Watcher](#register-an-event-watcher)
+  * [Start Event Loop](#start-event-loop)
+  * [Summary](#summary)
+* [Joystick Example](#joystick-example)
 * [Build & Install](#build--install)
 * [Origin & References](#origin--references)
 
@@ -44,13 +48,13 @@ core, even though they run Linux, with multiple threads a program may
 actually run slower!  Always profile your program, and if possible, test
 it on different architectures.
 
-[libuEv] is a simple event loop in the style of the more established
+[libuEv][] is a simple event loop in the style of the more established
 [libevent][1], [libev][2] and the venerable [Xt(3)][3] event loop.  The
 *u* (micro) in the name refers to both the small feature set and the
 small size overhead impact of the library.  The primary target of
-[libuEv] is a modern Linux system.
+[libuEv][] is a modern Linux system.
 
-Experienced developers may appreciate that [libuEv] is built on top of
+Experienced developers may appreciate that [libuEv][] is built on top of
 modern Linux APIs: epoll, timerfd and signalfd.  Note, a certain amount
 of care is needed when dealing with APIs that employ signalfd.  For
 details, see [this article][4] at [lwn.net](http://lwn.net).
@@ -61,18 +65,19 @@ details, see [this article][4] at [lwn.net](http://lwn.net).
 API
 ---
 
-The C interface to [libuEv] is very simple.  It handles three different
+The C interface to [libuEv][] is very simple.  It handles three different
 types of events: I/O (files, sockets, message queues, etc.), timers, and
 signals.  With a slight caveat on signals
 
 ```C
+
     /* Callback example, arg is passed from watcher's *_init()
      * w->fd holds the file descriptor, events is set by libuEv
      * to indicate if any of UEV_READ and/or UEV_WRITE is ready.
      */
     void callback       (uev_t *w, void *arg, int events);
 
-    /* Event loop functions, notice use of flags! */
+    /* Event loop:      Notice the use of flags! */
     int uev_init        (uev_ctx_t *ctx);
     int uev_exit        (uev_ctx_t *ctx);
     int uev_run         (uev_ctx_t *ctx, int flags);         /* UEV_NONE, UEV_ONCE, and/or UEV_NONBLOCK */
@@ -94,57 +99,84 @@ signals.  With a slight caveat on signals
     int uev_signal_set  (uev_t *w, int signo);               /* Change signal to wait for */
     int uev_signal_start(uev_t *w);                          /* Restart a stopped signal watcher */
     int uev_signal_stop (uev_t *w);                          /* Stop signal watcher */
+
 ```
 
+### Create an Event Context
+
 To monitor events the developer first creates an *event context*, this
 is achieved by calling `uev_init()` with a pointer to a (thread) local
 `uev_ctx_t` variable.
 
 ```C
-    uev_ctx_t ctx;
 
+    uev_ctx_t ctx;
+    
     uev_init(&ctx);
+
 ```
 
-Then, for each event to be monitored, a *watcher* is registered with the
-event context.  The watcher, an `uev_t`, is initialized with the proper
-file descriptor to monitor, and an event callback function, by calling
-the event type's `_init()` function with the `uev_ctx_t` context.
+### Register an Event Watcher
+
+For each event to be monitored, be it a signal, timer or a file
+descriptor, a *watcher* must be registered with the event context.  The
+watcher, an `uev_t`, is registered by calling the event type's `_init()`
+function with the `uev_ctx_t` context, the callback, and an optional
+argument.
+
+Here is a signal example:
 
 ```C
+
     void cleanup_exit(uev_t *w, void *arg, int events)
     {
         /* Graceful exit, with optional cleanup ... */
         uev_exit(w->ctx);
     }
     
-    uev_t termw;
+    int main(void)
+	{
+	    uev_t sigterm_watcher;
+        .
+		.
+		.
+        uev_signal_init(&ctx, &sigterm_watcher, cleanup_exit, NULL, SIGTERM);
+		.
+		.
+		.
+	}
 
-    uev_signal_init(&ctx, &term, cleanup_exit, NULL, SIGTERM);
 ```
 
+### Start Event Loop
+
 When all watchers are registered, call the *event loop* with `uev_run()`
 and the argument to the event context.  The `flags` parameter can be
-used to integrate [libuEv] into another event loop.  With `flags` set to
-`UEV_ONCE` the event loop returns after having served the first event.
-If `flags` is set to `UEV_ONCE | UEV_NONBLOCK` the event loop returns
-immediately if no event is available.
+used to integrate [libuEv][] into another event loop.
+
+In this example we set `flags` to none:
 
 ```C
+
     uev_run(&ctx, UEV_NONE);
+
 ```
 
-In case of errors, stream close, or peer shutdown, libuEv handles much
-internally, but also lets the callback run.  This is useful for stateful
-connections to be able to detect EOF.
+With `flags` set to `UEV_ONCE` the event loop returns as soon as it has
+served the first event.  If `flags` is set to `UEV_ONCE | UEV_NONBLOCK`
+the event loop returns immediately if no event is available.
 
-Summary:
+**Note:** libuEv handles many types of errors, stream close, or peer
+shutdowns internally, but also lets the callback run.  This is useful
+for stateful connections to be able to detect EOF.
 
-1. Prepare an event context with `uev_init()`
-2. Register event callbacks with `uev_io_init()`, `uev_signal_init()`
-   or `uev_timer_init()`
-3. Enter the event loop with `uev_run()`
-4. Leave the event loop with `uev_exit()`, possibly from a callback
+### Summary
+
+1. Set up an event context with `uev_init()`
+2. Register event callbacks with the event context using
+   `uev_io_init()`, `uev_signal_init()` or `uev_timer_init()`
+3. Start the event loop with `uev_run()`
+4. Exit the event loop with `uev_exit()`, possibly from a callback
 
 **Note 1:** Make sure to use non-blocking stream I/O!  Most hard to find
 bugs in event driven applications are due to sockets and files being
@@ -164,61 +196,63 @@ of this, from [finit][6], implementing `run()` as a better replacement
 to `system()`, which sucks anyawy :)
 
 
-Example
--------
+Joystick Example
+----------------
 
-Here follows a very brief example to illustrate how one can use [libuEv]
-to act upon joystick input.
+Here follows a very brief example to illustrate how one can use
+[libuEv][] to act upon joystick input.
 
 ```C
-#include <err.h>
-#include <errno.h>
-#include <stdio.h>
-#include <stdint.h>
-#include <fcntl.h>
-#include <unistd.h>
 
-#include "uev.h"
+    #include <err.h>
+    #include <errno.h>
+    #include <stdio.h>
+    #include <stdint.h>
+    #include <fcntl.h>
+    #include <unistd.h>
+    
+    #include "uev.h"
+    
+    struct js_event {
+    	uint32_t time;		/* event timestamp in milliseconds */
+    	int16_t  value;		/* value */
+    	uint8_t  type;		/* event type */
+    	uint8_t  number;	/* axis/button number */
+    } e;
+    
+    static void joystick_cb(uev_t *w, void *arg, int events)
+    {
+    	read (w->fd, &e, sizeof(e));
+    
+    	switch (e.type) {
+    	case 1:
+    		if (e.value) printf("Button %d pressed\n", e.number);
+    		else 	     printf("Button %d released\n", e.number);
+    		break;
+    
+    	case 2:
+    		printf("Joystick axis %d moved, value %d!\n", e.number, e.value);
+    		break;
+    	}
+    }
+    
+    int main(void)
+    {
+    	int       fd = open("/dev/input/js1", O_RDONLY, O_NONBLOCK);
+    	uev_t     js1_watcher;
+    	uev_ctx_t ctx;
+    
+    	if (fd < 0)
+    		errx(errno, "Cannot find a joystick attached.");
+    
+    	uev_init(&ctx);
+    	uev_io_init(&ctx, &js1_watcher, joystick_cb, NULL, fd, UEV_READ);
+    
+    	puts("Starting, press Ctrl-C to exit.");
+    
+    	return uev_run(&ctx, 0);
+    }
 
-struct js_event {
-	uint32_t time;		/* event timestamp in milliseconds */
-	int16_t  value;		/* value */
-	uint8_t  type;		/* event type */
-	uint8_t  number;	/* axis/button number */
-} e;
-
-static void joystick_cb(uev_t *w, void *arg, int events)
-{
-	read (w->fd, &e, sizeof(e));
-
-	switch (e.type) {
-	case 1:
-		if (e.value) printf("Button %d pressed\n", e.number);
-		else 	     printf("Button %d released\n", e.number);
-		break;
-
-	case 2:
-		printf("Joystick axis %d moved, value %d!\n", e.number, e.value);
-		break;
-	}
-}
-
-int main(void)
-{
-	int       fd = open("/dev/input/js1", O_RDONLY, O_NONBLOCK);
-	uev_t     js1_watcher;
-	uev_ctx_t ctx;
-
-	if (fd < 0)
-		errx(errno, "Cannot find a joystick attached.");
-
-	uev_init(&ctx);
-	uev_io_init(&ctx, &js1_watcher, joystick_cb, NULL, fd, UEV_READ);
-
-	puts("Starting, press Ctrl-C to exit.");
-
-	return uev_run(&ctx, 0);
-}
 ```
 
 To compile the program, save the code as `joystick.c` and call GCC with
@@ -226,12 +260,13 @@ To compile the program, save the code as `joystick.c` and call GCC with
 directory, skips using a Makefile altogether.  Alternatively, call the
 `Makefile` with <kbd>make joystick</kbd> from this directory.
 
-More complete and relevant example uses of [libuEv] is the TFTP/FTP
+More complete and relevant example uses of [libuEv][] is the TFTP/FTP
 server [uftpd][5], and the Linux `/sbin/init` replacement [finit][6].
-Both use [libuEv] as a GIT submodule.
+Both use [libuEv][] as a GIT submodule.
 
-Also, see the `bench.c` program (<kbd>make bench</kbd> from within the
-library) for [reference benchmarks][7] against libevent and libev.
+Also see the `bench.c` program (<kbd>make bench</kbd> from within the
+library) for [reference benchmarks][7] against [libevent][1] and
+[libev][2].
 
 
 Build & Install
@@ -246,7 +281,7 @@ patches to support *BSD and its kqueue interface.
 * <kbd>make test</kbd>: Test and showcase
 * <kbd>make install</kbd>: Honors `$prefix` and `$DESTDIR` environment variables
 
-Size of [libuEv]:
+Size of [libuEv][]:
 
     $ make strip
     CC      main.o
@@ -268,10 +303,13 @@ Size of [libuEv]:
 Origin & References
 --------------------
 
-[libuEv] was originally based on [LibUEvent][8] by [Flemming Madsen] but
-has been completely rewritten with a much clearer API.  Now more similar
-to the famous [libev][2] by [Mark Lehmann].  Another small event library
-used for inspiration is the very small [Picoev][9] by [Oku Kazuho].
+[libuEv][] was originally based on [LibUEvent][8] by [Flemming Madsen]
+but has been completely rewritten with a much clearer API.  Now more
+similar to the famous [libev][2] by [Mark Lehmann][].  Another small
+event library used for inspiration is the very small [Picoev][9] by
+[Oku Kazuho][].
+
+[libuEv][] is developed and maintained by [Joachim Nilsson][].
 
 [1]: http://libevent.org
 [2]: http://software.schmorp.de/pkg/libev.html
@@ -286,15 +324,13 @@ used for inspiration is the very small [Picoev][9] by [Oku Kazuho].
 [Travis Status]:   https://travis-ci.org/troglobit/libuev.png?branch=master
 [Coverity Scan]:   https://scan.coverity.com/projects/3846
 [Coverity Status]: https://scan.coverity.com/projects/3846/badge.svg
-[LibuEV]:          https://github.com/troglobit/libuev
+[LibuEv]:          https://github.com/troglobit/libuev
 [Oku Kazuho]:      https://github.com/kazuho
 [Mark Lehmann]:    http://software.schmorp.de
 [Joachim Nilsson]: http://troglobit.com
 [Flemming Madsen]: http://www.madsensoft.dk
 [Dave Zarzycki, Apple]: http://www.youtube.com/watch?v=cD_s6Fjdri8
 
-[libuEv] is developed and maintained by [Joachim Nilsson].
-
 <!--
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