libcanberra: Fix implicit declaration of function

declared in system `<malloc.h>`.

%ci:no-build

x11-packages/libcanberra/build.sh

@@ -8,3 +8,17 @@ TERMUX_PKG_SRCURL=http://0pointer.de/lennart/projects/libcanberra/libcanberra-$T
 TERMUX_PKG_SHA256=c2b671e67e0c288a69fc33dc1b6f1b534d07882c2aceed37004bf48c601afa72
 TERMUX_PKG_DEPENDS="atk, gdk-pixbuf, glib, gstreamer, gtk3, harfbuzz, libcairo, libltdl, libvorbis, libx11, pango, pulseaudio"
 TERMUX_PKG_RECOMMENDS="zenity"
+TERMUX_PKG_EXTRA_CONFIGURE_ARGS="
+--disable-gtk
+--disable-tdb
+"
+
+termux_step_post_get_source() {
+	# src/malloc.h prevents system <malloc.h> from being included
+	if [ -e "src/malloc-private.h" ]; then
+		termux_error_exit "src/malloc-private.h already exists."
+	fi
+	mv src/malloc.h src/malloc-private.h
+	find src -name 'Makefile.*' -o -name '*.c' | xargs -n 1 \
+		sed -i 's/malloc\.h/malloc-private.h/g'
+}