Add package: Cava

Cava is an Audio Visualizer that can work together with MPD. It works
out of the Box if you enable "visulizer output" in MPD by either running
`mpc enable 3` or by enabling it in [7] in ncmpcpp.

packages/cava/build.sh

@@ -0,0 +1,15 @@
+TERMUX_PKG_HOMEPAGE=https://github.com/karlstav/cava
+TERMUX_PKG_DESCRIPTION="Console-based Audio Visualizer. Works with MPD."
+TERMUX_PKG_VERSION=0.5.0
+TERMUX_PKG_MAINTAINER="Oliver Schmidhauser @Neo-Oli"
+TERMUX_PKG_SRCURL=https://github.com/karlstav/cava/archive/${TERMUX_PKG_VERSION}.tar.gz
+TERMUX_PKG_SHA256=c2fdc489addd96058a2b98c6bd2d925c88db1b7651c67d274f21aabbd7ff0ad8
+TERMUX_PKG_FOLDERNAME=cava-$TERMUX_PKG_VERSION
+TERMUX_PKG_DEPENDS="ncurses,fftw"
+TERMUX_PKG_BUILD_DEPENDS="libtool"
+TERMUX_PKG_BUILD_IN_SRC=yes
+TERMUX_PKG_EXTRA_CONFIGURE_ARGS+=" --prefix=${TERMUX_PREFIX}"
+
+termux_step_pre_configure() {
+./autogen.sh
+}

packages/cava/cava.c.patch

@@ -0,0 +1,13 @@
+diff --git a/cava.c b/cava.c
+index de8f98a..e88154e 100644
+--- a/cava.c
++++ b/cava.c
+@@ -268,7 +268,7 @@ FILE *fp;
+ 	}
+ 	if (strcmp(inputMethod, "fifo") == 0) {
+ 		im = 2;
+-		audio.source = (char *)iniparser_getstring(ini, "input:source", "/tmp/mpd.fifo");
++		audio.source = (char *)iniparser_getstring(ini, "input:source", "@TERMUX_PREFIX@/tmp/mpd.fifo");
+ 	}
+ 	if (strcmp(inputMethod, "pulse") == 0) {
+ 		im = 3;

packages/cava/configure.ac.patch

@@ -0,0 +1,25 @@
+diff --git a/configure.ac b/configure.ac
+index 6e3c291..c9d706e 100644
+--- a/configure.ac
++++ b/configure.ac
+@@ -31,9 +31,9 @@ dnl ######################
+ 
+ AC_CHECK_HEADERS([pthread.h],
+ 	AC_CHECK_LIB(pthread, pthread_create, LIBS="$LIBS -lpthread",
+-		AC_MSG_ERROR([pthread.h found but there is no pthread library to make use of])
++		AC_MSG_NOTICE([pthread.h found but there is no pthread library to make use of])
+ 	),
+-	AC_MSG_ERROR([no pthread.h header header file found])
++	AC_MSG_NOTICE([no pthread.h header header file found])
+ )
+ 
+ 
+@@ -152,7 +152,7 @@ AS_IF([test "x$enable_legacy_iniparser" = "xyes"], [
+ dnl ############################
+ dnl Set font directory
+ dnl ############################
+-DEFAULT_FONT_DIR="/usr/share/consolefonts"
++DEFAULT_FONT_DIR="@TERMUX_PREFIX@/share/consolefonts"
+ AC_ARG_VAR(FONT_DIR, [Directory where the font will be installed.])
+ if test -z "$FONT_DIR" ; then
+   FONT_DIR="$DEFAULT_FONT_DIR"