libraries/rtmidi: Added (API for realtime MIDI).

Signed-off-by: Willy Sudiarto Raharjo <willysr@slackbuilds.org>

libraries/rtmidi/README

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+rtmidi (crossplatform realtime MIDI library)
+
+RtMidi is a set of C++ classes (RtMidiIn, RtMidiOut, and API specific
+classes) that provide a common API for realtime MIDI input/output
+across Linux (ALSA, JACK), Macintosh OS X (CoreMIDI, JACK), and
+Windows (Multimedia Library) operating systems. RtMidi significantly
+simplifies the process of interacting with computer MIDI hardware and
+software.
+
+Optional dependency: jack (autodetected). If jack is installed when
+rtmidi is built, rtmidi will be built with jack support. If you have
+jack installed and don't want to build rtmidi jack support, export
+JACK=no in the environment.

libraries/rtmidi/rtmidi.SlackBuild

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+#!/bin/bash
+
+# Slackware build script for rtmidi
+
+# Written by B. Watson (urchlay@slackware.uk)
+
+# Licensed under the WTFPL. See http://www.wtfpl.net/txt/copying/ for details.
+
+cd $(dirname $0) ; CWD=$(pwd)
+
+PRGNAM=rtmidi
+VERSION=${VERSION:-6.0.0}
+BUILD=${BUILD:-1}
+TAG=${TAG:-_SBo}
+PKGTYPE=${PKGTYPE:-tgz}
+
+if [ -z "$ARCH" ]; then
+  case "$( uname -m )" in
+    i?86) ARCH=i586 ;;
+    arm*) ARCH=arm ;;
+       *) ARCH=$( uname -m ) ;;
+  esac
+fi
+
+if [ ! -z "${PRINT_PACKAGE_NAME}" ]; then
+  echo "$PRGNAM-$VERSION-$ARCH-$BUILD$TAG.$PKGTYPE"
+  exit 0
+fi
+
+TMP=${TMP:-/tmp/SBo}
+PKG=$TMP/package-$PRGNAM
+OUTPUT=${OUTPUT:-/tmp}
+
+if [ "$ARCH" = "i586" ]; then
+  SLKCFLAGS="-O2 -march=i586 -mtune=i686"
+elif [ "$ARCH" = "i686" ]; then
+  SLKCFLAGS="-O2 -march=i686 -mtune=i686"
+elif [ "$ARCH" = "x86_64" ]; then
+  SLKCFLAGS="-O2 -fPIC"
+else
+  SLKCFLAGS="-O2"
+fi
+
+set -e
+
+rm -rf $PKG
+mkdir -p $TMP $PKG $OUTPUT
+cd $TMP
+rm -rf $PRGNAM-$VERSION
+tar xvf $CWD/$PRGNAM-$VERSION.tar.gz
+cd $PRGNAM-$VERSION
+chown -R root:root .
+find -L .  -perm /111 -a \! -perm 755 -a -exec chmod 755 {} + -o \
+        \! -perm /111 -a \! -perm 644 -a -exec chmod 644 {} +
+
+# Claims to need cmake-3.24, but our 3.21.4 worx fine. Upstream
+# notified, no response yet.
+sed -i '/cmake_minimum_required/s,3\.24,3.21.4,' CMakeLists.txt
+
+[ "${JACK:-yes}" = "no" ] && JACKOPT="-DRTMIDI_API_JACK=OFF"
+
+mkdir -p build
+cd build
+  cmake \
+    $JACKOPT \
+    -DCMAKE_C_FLAGS:STRING="$SLKCFLAGS" \
+    -DCMAKE_CXX_FLAGS:STRING="$SLKCFLAGS" \
+    -DCMAKE_INSTALL_PREFIX=/usr \
+    -DCMAKE_BUILD_TYPE=Release ..
+  make
+  make install/strip DESTDIR=$PKG
+cd ..
+
+# This goes in the slack-desc.
+WITHJACK="WITHOUT"
+objdump -p build/librtmidi.so | grep -q 'NEEDED.*libjack' && WITHJACK="WITH"
+
+PKGDOC=$PKG/usr/doc/$PRGNAM-$VERSION
+mkdir -p $PKGDOC
+cp -a LICENSE README* $PKGDOC
+cat $CWD/$PRGNAM.SlackBuild > $PKGDOC/$PRGNAM.SlackBuild
+
+mkdir -p $PKG/install
+sed "s,@WITHJACK@,$WITHJACK," < $CWD/slack-desc > $PKG/install/slack-desc
+
+cd $PKG
+/sbin/makepkg -l y -c n $OUTPUT/$PRGNAM-$VERSION-$ARCH-$BUILD$TAG.$PKGTYPE

libraries/rtmidi/rtmidi.info

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+PRGNAM="rtmidi"
+VERSION="6.0.0"
+HOMEPAGE="https://github.com/thestk/rtmidi/"
+DOWNLOAD="https://github.com/thestk/rtmidi/archive/6.0.0/rtmidi-6.0.0.tar.gz"
+MD5SUM="5d15802402e4b8e26745c6b7da8b8575"
+DOWNLOAD_x86_64=""
+MD5SUM_x86_64=""
+REQUIRES=""
+MAINTAINER="B. Watson"
+EMAIL="urchlay@slackware.uk"

libraries/rtmidi/slack-desc

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+# HOW TO EDIT THIS FILE:
+# The "handy ruler" below makes it easier to edit a package description.
+# Line up the first '|' above the ':' following the base package name, and
+# the '|' on the right side marks the last column you can put a character in.
+# You must make exactly 11 lines for the formatting to be correct.  It's also
+# customary to leave one space after the ':' except on otherwise blank lines.
+
+      |-----handy-ruler------------------------------------------------------|
+rtmidi: rtmidi (crossplatform realtime MIDI library)
+rtmidi:
+rtmidi: RtMidi is a set of C++ classes (RtMidiIn, RtMidiOut, and API specific
+rtmidi: classes) that provide a common API for realtime MIDI input/output
+rtmidi: across Linux (ALSA, JACK), Macintosh OS X (CoreMIDI, JACK), and
+rtmidi: Windows (Multimedia Library) operating systems. RtMidi significantly
+rtmidi: simplifies the process of interacting with computer MIDI hardware and
+rtmidi: software.
+rtmidi:
+rtmidi: This package is built @WITHJACK@ jack support.
+rtmidi: