Always link to -lm for oggenc and ogg123.

ogg123/Makefile.am

@@ -30,7 +30,7 @@ AM_CPPFLAGS = @OGG_CFLAGS@ @VORBIS_CFLAGS@ @AO_CFLAGS@ @CURL_CFLAGS@ \
 ogg123_LDADD = @SHARE_LIBS@ \
 	       @VORBISFILE_LIBS@ @VORBIS_LIBS@ @OGG_LIBS@ @AO_LIBS@ \
                @SOCKET_LIBS@ @LIBICONV@ @CURL_LIBS@ @PTHREAD_CFLAGS@ \
-               @PTHREAD_LIBS@ @I18N_LIBS@ @FLAC_LIBS@ @SPEEX_LIBS@
+               @PTHREAD_LIBS@ @I18N_LIBS@ @FLAC_LIBS@ @SPEEX_LIBS@ -lm
 
 ogg123_DEPENDENCIES = @SHARE_LIBS@
 ogg123_SOURCES = audio.c buffer.c callbacks.c \

oggenc/Makefile.am

@@ -23,7 +23,7 @@ AM_CPPFLAGS = @SHARE_CFLAGS@ @OGG_CFLAGS@ @VORBIS_CFLAGS@ @KATE_CFLAGS@ @I18N_CF
 
 oggenc_LDADD = @SHARE_LIBS@ \
 	       @VORBISENC_LIBS@ @VORBIS_LIBS@ @KATE_LIBS@ @OGG_LIBS@ \
-	       @LIBICONV@ @I18N_LIBS@ @FLAC_LIBS@
+	       @LIBICONV@ @I18N_LIBS@ @FLAC_LIBS@ -lm
 
 oggenc_DEPENDENCIES = @SHARE_LIBS@