community/astyle: fix ppc64le build

On systems without glibc, you might lack definition of
PATH_MAX. This patch adds the limits.h header to solve this issue.

PS: I will send this patch upstream latter

community/astyle/APKBUILD

@@ -1,28 +1,31 @@
 # Maintainer: André Klitzing <aklitzing@gmail.com>
 pkgname=astyle
 pkgver=3.1
-pkgrel=0
+pkgrel=1
 pkgdesc="An automatic code formatter"
 url="http://sourceforge.net/projects/astyle"
 arch="all"
 license="LGPL"
-source="http://downloads.sourceforge.net/sourceforge/astyle/${pkgname}_${pkgver}_linux.tar.gz"
-builddir="$srcdir/$pkgname/build/gcc"
+source="http://downloads.sourceforge.net/sourceforge/astyle/${pkgname}_${pkgver}_linux.tar.gz
+fix-ppc64le-build.patch"
+
+builddir="$srcdir/$pkgname"
 
 build() {
-	cd "$builddir"
+	cd "$builddir/build/gcc"
 	make release
 }
 
 check() {
-	cd "$builddir"
+	cd "$builddir/build/gcc"
 	# upstream do not provide tests
 	./bin/astyle --version
 }
 
 package() {
-	cd "$builddir"
+	cd "$builddir/build/gcc"
 	install -Dm0755 bin/astyle "$pkgdir/usr/bin/astyle"
 }
 
-sha512sums="2e8f13d291abda66bbba30174c364c81a81a490e0a21376f7da7cf471644c22caa37b9eefb100d093bf26d1a8bfa9d2f14b4c2a9b75b3cb84428b4514e277ff2  astyle_3.1_linux.tar.gz"
+sha512sums="2e8f13d291abda66bbba30174c364c81a81a490e0a21376f7da7cf471644c22caa37b9eefb100d093bf26d1a8bfa9d2f14b4c2a9b75b3cb84428b4514e277ff2  astyle_3.1_linux.tar.gz
+ef934980659777d398ee53f20b68f94e06aa8e2c9036dc257adbfbc99b5b45914914011aa34d0015f7d60fa43daed39527ff335fed95c721a85aeb4b2a7675c5  fix-ppc64le-build.patch"

community/astyle/fix-ppc64le-build.patch

@@ -0,0 +1,10 @@
+--- a/src/astyle_main.cpp
++++ b/src/astyle_main.cpp
+@@ -41,6 +41,7 @@
+ #include <cstdlib>
+ #include <fstream>
+ #include <sstream>
++#include <limits.h>
+ 
+ // includes for recursive getFileNames() function
+ #ifdef _WIN32