<?xml version="1.0" encoding="utf-8"?><feedxmlns="http://www.w3.org/2005/Atom"><generatoruri="https://jekyllrb.com/"version="4.1.1">Jekyll</generator><linkhref="/feed.xml"rel="self"type="application/atom+xml"/><linkhref="/"rel="alternate"type="text/html"/><updated>2020-12-01T12:33:24-07:00</updated><id>/feed.xml</id><entry><titletype="html">Getting Pacaur Working on a Raspberry Pi 4 with Manjaro ARM or Arch Linux</title><linkhref="/2020/12/01/pacaur-rpi.html"rel="alternate"type="text/html"title="Getting Pacaur Working on a Raspberry Pi 4 with Manjaro ARM or Arch Linux"/><published>2020-12-01T00:00:00-07:00</published><updated>2020-12-01T00:00:00-07:00</updated><id>/2020/12/01/pacaur-rpi</id><contenttype="html"xml:base="/2020/12/01/pacaur-rpi.html"><p>I recently installed Manjaro ARM (based on Arch Linux ARM) on a Raspberry Pi 4. I used some standard commands to start to add the <code class="language-plaintext highlighter-rouge">pacaur</code> package so I can easily retrieve <a href="https://wiki.archlinux.org/index.php/Arch_User_Repository">AUR packages</a> without needing to do it manually. Unfortunately, there is a small problem with compiling this on ARM.</p><h2 id="always_inline">always_inline</h2><p>To setup the install for <code class="language-plaintext highlighter-rouge">pacaur</code>, I first needed to download <a href="https://aur.archlinux.org/packages/auracle-git">auracle-git</a> AUR package manually. I ran into an error when compiling this package.</p><p>But first, my setup:</p><pre class="terminal"> $ git clone https://aur.archlinux.org/auracle-git $ cd auracle-git $ makepkg -sri </pre><p>Around half way through compiling this project, I got this cryptic message telling me there was a “target specific option mismatch”…Whatever that means. The full error is below, hopefully that helps my chances on the search engines.</p><pre class="terminal"> In file included from ../subprojects/abseil-cpp-20200225.2/absl/random/internal/randen_hwaes.cc:225: /usr/lib/gcc/aarch64-unknown-linux-gnu/9.3.0/include/arm_neon.h: In function 'Vector128 {anonymous}::AesRound(const Vector128&amp;, const Vector128&amp;)': /usr/lib/gcc/aarch64-unknown-linux-gnu/9.3.0/include/arm_neon.h:12452:1: error: inlining failed in call to always_inline 'uint8x16_t vaesmcq_u8(uint8x16_t)': target specific option mismatch 12452 | vaesmcq_u8 (uint8x16_t data) </pre><p>Luckily, there is a very easy fix for this. The user redfish <a href="https://aur.archlinux.org/packages/auracle-git#comment-762117">helpfully pointed out</a> on the <code class="language-plaintext highlighter-rouge">auracle-git</code> package page that you need to add a special make option to your <code class="language-plaintext highlighter-rouge">/etc/make.conf</code> file to make this work.</p><p>His solution, as commented is like so:</p><blockquote><p>If you get this error when building for ARM aarch64:</p><p>(insert error message from before)</p><p>Then check that in /etc/makepkg.conf CFLAGS and CXXFLAGS have the +crypto suffix in -march flag, like -march=armv8-a+crypto (the base identifier may very depending on your hardware)</p></blockquote><p>Basically, there is a file on Linux: <code class="language-plaintext highlighter-rouge">/etc/makepkg.conf</code> which tells your computer how to compile <em>all</em> programs on the system. By default the Manjaro ARM (RPi4) edition has the following relevant lines in <code class="language-plaintext highlighter-rouge">makepkg.conf</code>.</p><pre class="file"> CFLAGS="-march=armv8-a -O2 -pipe -fstack-protector-strong -fno-plt" CXXFLAGS="-march=armv8-a -O2 -pipe -f
