new package: librnnoise

packages/librnnoise/build.sh

@@ -0,0 +1,28 @@
+TERMUX_PKG_HOMEPAGE=https://jmvalin.ca/demo/rnnoise/
+TERMUX_PKG_DESCRIPTION="RNN-based noise suppression"
+TERMUX_PKG_LICENSE="BSD 3-Clause"
+TERMUX_PKG_MAINTAINER="@termux"
+_COMMIT=7f449bf8bd3b933891d12c30112268c4090e4d59
+TERMUX_PKG_VERSION=2021.03.12
+TERMUX_PKG_SRCURL=https://gitlab.xiph.org/xiph/rnnoise.git
+TERMUX_PKG_GIT_BRANCH=master
+TERMUX_PKG_EXTRA_CONFIGURE_ARGS="
+--disable-examples
+--disable-doc
+"
+
+termux_step_post_get_source() {
+	git fetch --unshallow
+	git checkout $_COMMIT
+
+	local version="$(git log -1 --format=%cs | sed 's/-/./g')"
+	if [ "$version" != "$TERMUX_PKG_VERSION" ]; then
+		echo -n "ERROR: The specified version \"$TERMUX_PKG_VERSION\""
+		echo " is different from what is expected to be: \"$version\""
+		return 1
+	fi
+}
+
+termux_step_pre_configure() {
+	autoreconf -fi
+}

packages/librnnoise/src-rnn.c.patch

@@ -0,0 +1,20 @@
+--- a/src/rnn.c
++++ b/src/rnn.c
+@@ -102,7 +102,7 @@
+       for (i=0;i<N;i++)
+          output[i] = relu(output[i]);
+    } else {
+-     *(int*)0=0;
++     __builtin_trap();
+    }
+ }
+ 
+@@ -148,7 +148,7 @@
+       if (gru->activation == ACTIVATION_SIGMOID) sum = sigmoid_approx(WEIGHTS_SCALE*sum);
+       else if (gru->activation == ACTIVATION_TANH) sum = tansig_approx(WEIGHTS_SCALE*sum);
+       else if (gru->activation == ACTIVATION_RELU) sum = relu(WEIGHTS_SCALE*sum);
+-      else *(int*)0=0;
++      else __builtin_trap();
+       h[i] = z[i]*state[i] + (1-z[i])*sum;
+    }
+    for (i=0;i<N;i++)