Fix installation on non systemd

README.md

@@ -44,6 +44,12 @@ sudo make install
 sudo ldconfig
 ```
 
+On Void Linux, additional arguments need to be passed to `./configure`.
+
+```
+./configure CFLAGS="-I/usr/include/json-glib-1.0 -I/usr/include/glib-2.0 -I/usr/lib64/glib-2.0/include" LDFLAGS=-ljack
+```
+
 Some udev rules might need to be installed manually with `sudo make install` from the `udev` directory as they are not part of the `install` target. This is not needed when packaging or when distributions already provide them.
 
 The package dependencies for Debian based distributions are:
@@ -76,6 +82,12 @@ For Arch, no additional dependencies are needed.
 
 As this will install `jackd2`, you would be asked to configure it to be run with real time priority. Be sure to answer yes. With this, the `audio` group would be able to run processes with real time priority. Be sure to be in the `audio` group too.
 
+For Void Linux, run this to install the dependencies. Notice that, since this distribution is not based on `systemd`, the Overwitch service based on it will not be installed.
+
+```
+sudo xbps-install base-devel gettext-devel pipewire libjack-pipewire jack-devel libusb-devel glib-devel json-glib-devel libsndfile-devel libsamplerate-devel gtk4-devel
+```
+
 ### systemd service
 
 For embedded systems or users not wanting to use the GUI, it is recommended to install the systemd service unit by running `sudo make install` from the `systemd` directory. Notice `overwitch.service` is installed as a user service.

configure.ac

@@ -17,7 +17,7 @@ AC_DEFINE([PACKAGE_SERVICE_DBUS_NAME], ["io.github.dagargo.OverwitchService"], "
 AC_PROG_CC
 
 # Define conditional prior to package checks
-AM_CONDITIONAL([CLI_ONLY], [test "${CLI_ONLY}" == yes])
+AM_CONDITIONAL([CLI_ONLY], [test "${CLI_ONLY}" = yes])
 AM_CONDITIONAL([GUI], [test "${CLI_ONLY}" != yes])
 
 AM_COND_IF(GUI, [PKG_CHECK_MODULES(GTK4, gtk4 >= 4.14)])

docs/installation.md

@@ -19,6 +19,12 @@ sudo make install
 sudo ldconfig
 ```
 
+On Void Linux, additional arguments need to be passed to `./configure`.
+
+```
+./configure CFLAGS="-I/usr/include/json-glib-1.0 -I/usr/include/glib-2.0 -I/usr/lib64/glib-2.0/include" LDFLAGS=-ljack
+```
+
 Some udev rules might need to be installed manually with `sudo make install` from the `udev` directory as they are not part of the `install` target. This is not needed when packaging or when distributions already provide them.
 
 The package dependencies for Debian based distributions are:
@@ -51,6 +57,12 @@ For Arch, no additional dependencies are needed.
 
 As this will install `jackd2`, you would be asked to configure it to be run with real time priority. Be sure to answer yes. With this, the `audio` group would be able to run processes with real time priority. Be sure to be in the `audio` group too.
 
+For Void Linux, run this to install the dependencies. Notice that, since this distribution is not based on `systemd`, the Overwitch service based on it will not be installed.
+
+```
+sudo xbps-install base-devel gettext-devel pipewire libjack-pipewire jack-devel libusb-devel glib-devel json-glib-devel libsndfile-devel libsamplerate-devel gtk4-devel
+```
+
 ### systemd service
 
 For embedded systems or users not wanting to use the GUI, it is recommended to install the systemd service unit by running `sudo make install` from the `systemd` directory. Notice `overwitch.service` is installed as a user service.

src/Makefile.am

@@ -55,4 +55,8 @@ SAMPLERATE_LIBS = @SAMPLERATE_LIBS@
 SNDFILE_CFLAGS = @SNDFILE_CFLAGS@
 SNDFILE_LIBS = @SNDFILE_LIBS@
 
+if HAVE_SYSTEMD
+AM_CPPFLAGS = -DDATADIR='"$(datadir)/$(PACKAGE)"' -DLOCALEDIR='"$(localedir)"' -DHAVE_SYSTEMD='"yes"'
+else
 AM_CPPFLAGS = -DDATADIR='"$(datadir)/$(PACKAGE)"' -DLOCALEDIR='"$(localedir)"'
+endif

src/main-service.c

@@ -21,7 +21,9 @@
 #define _GNU_SOURCE
 #include <signal.h>
 #include <errno.h>
+#ifdef HAVE_SYSTEMD
 #include <systemd/sd-daemon.h>
+#endif
 #include <time.h>
 #include "../config.h"
 #include "jclient.h"
@@ -141,16 +143,19 @@ signal_handler (int signum)
     {
       struct timespec ts;
       clock_gettime (CLOCK_MONOTONIC, &ts);
+#ifdef HAVE_SYSTEMD
       sd_notifyf (0, "RELOADING=1\nMONOTONIC_USEC=%" PRIdMAX "%06d",
 		  (intmax_t) ts.tv_sec, (int) (ts.tv_nsec / 1000));
+#endif
       handle_start ();
+#ifdef HAVE_SYSTEMD
       sd_notify (0, "READY=1");
+#endif
     }
   else
     {
       error_print ("Signal not handled");
     }
-
 }
 
 static void *
@@ -544,7 +549,9 @@ app_startup (GApplication *app, gpointer *user_data)
       startup ();
       g_application_hold (app);
       g_application_activate (app);
+#ifdef HAVE_SYSTEMD
       sd_notify (0, "READY=1");
+#endif
     }
 }
 

src/main.c

@@ -20,7 +20,6 @@
 
 #define _GNU_SOURCE
 #include <errno.h>
-#include <libusb.h>
 #include <string.h>
 #include <gtk/gtk.h>
 #include <json-glib/json-glib.h>