ALSA, ESD, and aRts plugins can now be disabled from the configure

script.  Thanks to Marc Martinez for the suggested fix.


git-svn-id: http://svn.xiph.org/trunk/ao@1478 0101bb08-14d6-0310-b084-bc0e0c8e3800

configure.in

@@ -120,8 +120,13 @@ dnl ======================================
 
 dnl Check for ESD
 
-AM_PATH_ESD(0.2.8, have_esd=yes, have_esd=no)
-AM_CONDITIONAL(HAVE_ESD,test "x$have_esd" = xyes)
+AC_ARG_ENABLE(esd, [  --enable-esd            include ESD output plugin ],
+[ BUILD_ESD="$enableval" ],[ BUILD_ESD="yes" ])
+
+if test "$BUILD_ESD" = "yes"; then
+  AM_PATH_ESD(0.2.8, have_esd=yes, have_esd=no)
+  AM_CONDITIONAL(HAVE_ESD,test "x$have_esd" = xyes)
+fi
 
 dnl Check for OSS
 
@@ -131,8 +136,13 @@ AM_CONDITIONAL(HAVE_OSS,test "${ac_cv_header_sys_soundcard_h}" = "yes" || test "
 
 dnl Check for ALSA
 
-AC_CHECK_LIB(asound, snd_pcm_open, have_alsa=yes, have_alsa=no)
-AM_CONDITIONAL(HAVE_ALSA,test "x$have_alsa" = xyes)
+AC_ARG_ENABLE(alsa, [  --enable-alsa           include alsa 0.5 output plugin ],
+[ BUILD_ALSA="$enableval" ],[ BUILD_ALSA="yes" ])
+
+if test "$BUILD_ALSA" = "yes"; then
+   AC_CHECK_LIB(asound, snd_pcm_open, have_alsa=yes, have_alsa=no)
+   AM_CONDITIONAL(HAVE_ALSA,test "x$have_alsa" = xyes)
+fi
 
 if test "x$have_alsa" = xyes; then
 	ALSA_LIBS="-lasound"
@@ -148,13 +158,18 @@ AM_CONDITIONAL(HAVE_SUN_AUDIO,test "${ac_cv_header_sys_audioio_h}" = yes)
 
 dnl Check for aRts
 
-AC_PATH_PROG(ARTSC_CONFIG, artsc-config)
-AM_CONDITIONAL(HAVE_ARTS,test "x$ac_cv_path_ARTSC_CONFIG" != x)
+AC_ARG_ENABLE(arts, [  --enable-arts           include aRts output plugin ],
+[ BUILD_ARTS="$enableval" ],[ BUILD_ARTS="yes" ])
+
+if test "$BUILD_ARTS" = "yes"; then
+  AC_PATH_PROG(ARTSC_CONFIG, artsc-config)
+  AM_CONDITIONAL(HAVE_ARTS,test "x$ac_cv_path_ARTSC_CONFIG" != x)
 
-if test "x$ac_cv_path_ARTSC_CONFIG" != x
-then
+  if test "x$ac_cv_path_ARTSC_CONFIG" != x
+  then
 	ARTS_CFLAGS=`$ac_cv_path_ARTSC_CONFIG --cflags`
 	ARTS_LIBS=`$ac_cv_path_ARTSC_CONFIG --libs`
+  fi
 fi
 
 AC_SUBST(ARTS_CFLAGS)