Add icewm 1.3.8.

This is a relatively lightweight window manager that feels about like
Windows 9x/2000 by default, but can be configured to look and act more
like mwm or the OS/2 Presentation Manager quite easily.

Themes are available online to make it look similar to Windows XP,
Vista, and 7, OS X, plus quite a few unique ones.
Icewm supports XPM transparency and animated buttons with
appropriate themes.

At present you will need to copy /usr/share/icewm to ~/.icewm and
manually edit the examples provided (especially "menu").

testing/icewm/APKBUILD

@@ -0,0 +1,64 @@
+# Contributor: Isaac Dunham <ibid.ag@gmail.com>
+# Maintainer: Isaac Dunham <ibid.ag@gmail.com>
+pkgname=icewm
+pkgver=1.3.8
+pkgrel=0
+pkgdesc="A lightweight Win95/Motif-style window manager in C++"
+url="http://www.icewm.org"
+arch="all"
+license="LGPL2"
+depends=""
+depends_dev=""
+makedepends="gdk-pixbuf-dev libx11-dev util-macros fontconfig-dev freetype-dev libxft-dev libxinerama-dev libice-dev libxrandr-dev libsm-dev"
+install=""
+subpackages="$pkgname-doc"
+source="http://downloads.sourceforge.net/icewm/icewm-$pkgver.tar.gz
+backtrace_on_glibc.patch"
+
+_builddir="$srcdir"/icewm-$pkgver
+prepare() {
+	local i
+	cd "$_builddir"
+	cp /usr/share/abuild/config.sub ./
+	for i in $source; do
+		case $i in
+		*.patch) msg $i; patch -p1 -i "$srcdir"/$i || return 1;;
+		esac
+	done
+}
+
+build() {
+	cd "$_builddir"
+	./configure \
+		--build=$CBUILD \
+		--host=$CHOST \
+		--prefix=/usr \
+		--sysconfdir=/etc \
+		--mandir=/usr/share/man \
+		--infodir=/usr/share/info \
+		--localstatedir=/var \
+		--disable-guievents \
+		|| return 1
+	make || return 1
+}
+
+package() {
+	cd "$_builddir"
+	make DESTDIR="$pkgdir" install || return 1
+	rm -f "$pkgdir"/usr/lib/*.la
+}
+doc() {
+	cd "$_builddir"
+	make DESTDIR="$subpkgdir" install-docs install-man || return 1
+	for _doc in AUTHORS BUGS README TODO; do
+		install -Dm644 "$srcdir"/$pkgname-$pkgver/$_doc "$subpkgdir"/usr/share/doc/$pkgname/$_doc || return 1
+	done
+	install -Dm644 "$srcdir"/$pkgname-$pkgver/COPYING "$pkgdir"/usr/share/licenses/$pkgname/COPYING
+}
+
+md5sums="6d61aced3bd20b9e7caeb7e8380368c8  icewm-1.3.8.tar.gz
+9abf33b667e9b0b802da94bdcf974252  backtrace_on_glibc.patch"
+sha256sums="17588d9e0bbbb23587bc04c83da9dd94fd4da6894ecfee6d7f3ed50d780dcd18  icewm-1.3.8.tar.gz
+9894a8d8cd5f8f372662633e2b264ef1cea8d3ea10e4586ef210f493afdd443c  backtrace_on_glibc.patch"
+sha512sums="ce9bf3e736a2f3fad4bbf731647b4e4ad0168cd2c4af66b1c43beef9ceeee39d14909714d2fc73ab13f6c285a74dfe31fffc9677ae8bd2d1077716cd6d6afb72  icewm-1.3.8.tar.gz
+b844bd0a0e839580e8212b22af9638503b6969c64f98a89bdeadef8e0121fd8668a3246d304e30fe4ba9097ce7767961ec87ac0e8df04abdbc5ec17ae3ce2451  backtrace_on_glibc.patch"

testing/icewm/backtrace_on_glibc.patch

@@ -0,0 +1,22 @@
+diff --git a/src/misc.cc b/src/misc.cc
+index 8b7905a..1eee766 100644
+--- a/src/misc.cc
++++ b/src/misc.cc
+@@ -15,7 +15,7 @@
+ #include <libgen.h>
+ #endif
+ 
+-#ifdef linux
++#ifdef __GLIBC__
+ #include <execinfo.h>
+ #endif
+ 
+@@ -539,7 +539,7 @@ bool isreg(char const *path) {
+ }
+ 
+ void show_backtrace() {
+-#ifdef linux
++#ifdef __GLIBC__
+     const char head[] = "\nbacktrace:\n";
+     const char tail[] = "end\n";
+     void *array[20];