manual: Add missing references of two optional packages.

The curses lib and libsamplerate are both optional but were not
mentioned in the "Requirements" section. This patch adds both.

diff --git a/web/manual.m4 b/web/manual.m4
index 3ebeb6b04f82e6907ce1faabb14e74b56883485e..22abf76f85364e8d899029cad661f03fe8fefe17 100644 (file)
--- a/web/manual.m4
+++ b/web/manual.m4
@@ -267,6 +267,10 @@ Optional:
        or decode files encoded with the _Free Lossless Audio Codec_,
        libFLAC (libFLAC-dev) must be installed.
 
+       - XREFERENCE(http://www.mega-nerd.com/SRC/index.html,
+       libsamplerate). The resample filter will only be compiled if
+       this library is installed. Debian package: libsamplerate-dev.
+
        - XREFERENCE(ftp://ftp.alsa-project.org/pub/lib/, alsa-lib). On
        Linux, you'll need to have ALSA's development package
        libasound2-dev installed.
@@ -275,6 +279,9 @@ Optional:
        libao). Needed to build the ao writer (ESD, PulseAudio,...).
        Debian package: libao-dev.
 
+       - XREFERENCE(ftp://ftp.gnu.org/pub/gnu/ncurses, curses). Needed
+       for para_gui. Debian package: libncurses-dev.
+
        - XREFERENCE(http://cnswww.cns.cwru.edu/php/chet/readline/rltop.html,
        GNU Readline). If this library (libreadline-dev) is installed,
        para_client, para_audioc and para_play support interactive