XEmacs 2.5.26/RHEL4: ALSA compilation problems

[Stefan Becker]

Hi,

the latest configure automatic detects ALSA headers on the system. But 
it seems the code requires a specific version of ALSA:

gcc -c -Wall -Wno-switch -Wundef -Wsign-compare -Wno-char-subscripts 
-Wpacked -Wunused-parameter -g -O3   -Demacs -I. 
-I/workarea/rpm/SOURCES/xemacs-21.5.26/src -DHAVE_CONFIG_H 
-I/usr/X11R6/include /workarea/rpm/SOURCES/xemacs-21.5.26/src/alsaplay.c
/workarea/rpm/SOURCES/xemacs-21.5.26/src/alsaplay.c: In function 
`set_volume':
/workarea/rpm/SOURCES/xemacs-21.5.26/src/alsaplay.c:231: error: void 
value not ignored as it ought to be
/workarea/rpm/SOURCES/xemacs-21.5.26/src/alsaplay.c:254: error: 
`SND_MIXER_SCHN_REAR_CENTER' undeclared (first use in this function)
/workarea/rpm/SOURCES/xemacs-21.5.26/src/alsaplay.c:254: error: (Each 
undeclared identifier is reported only once
/workarea/rpm/SOURCES/xemacs-21.5.26/src/alsaplay.c:254: error: for each 
function it appears in.)
/workarea/rpm/SOURCES/xemacs-21.5.26/src/alsaplay.c:262: error: 
`SND_MIXER_SCHN_SIDE_LEFT' undeclared (first use in this function)
/workarea/rpm/SOURCES/xemacs-21.5.26/src/alsaplay.c:266: error: 
`SND_MIXER_SCHN_SIDE_RIGHT' undeclared (first use in this function)
/workarea/rpm/SOURCES/xemacs-21.5.26/src/alsaplay.c: In function 
`reset_volume':
/workarea/rpm/SOURCES/xemacs-21.5.26/src/alsaplay.c:298: error: 
`SND_MIXER_SCHN_REAR_CENTER' undeclared (first use in this function)
/workarea/rpm/SOURCES/xemacs-21.5.26/src/alsaplay.c:306: error: 
`SND_MIXER_SCHN_SIDE_LEFT' undeclared (first use in this function)
/workarea/rpm/SOURCES/xemacs-21.5.26/src/alsaplay.c:310: error: 
`SND_MIXER_SCHN_SIDE_RIGHT' undeclared (first use in this function)
make[1]: *** [alsaplay.o] Error 1

I'm trying to compile it on RHEL4u3 which has ALSA 1.0.6:

$ rpm -q alsa-lib-devel
alsa-lib-devel-1.0.6-5.RHEL4

$ fgrep SND_MIXER_SCH /usr/include/alsa/*
/usr/include/alsa/mixer.h:      SND_MIXER_SCHN_UNKNOWN = -1,
/usr/include/alsa/mixer.h:      SND_MIXER_SCHN_FRONT_LEFT = 0,
/usr/include/alsa/mixer.h:      SND_MIXER_SCHN_FRONT_RIGHT,
/usr/include/alsa/mixer.h:      SND_MIXER_SCHN_FRONT_CENTER,
/usr/include/alsa/mixer.h:      SND_MIXER_SCHN_REAR_LEFT,
/usr/include/alsa/mixer.h:      SND_MIXER_SCHN_REAR_RIGHT,
/usr/include/alsa/mixer.h:      SND_MIXER_SCHN_WOOFER,
/usr/include/alsa/mixer.h:      SND_MIXER_SCHN_LAST = 31,
/usr/include/alsa/mixer.h:      SND_MIXER_SCHN_MONO = 
SND_MIXER_SCHN_FRONT_LEFT

I guess the ALSA autoconfig check needs to check for a minimum version.

Regards,

	Stefan

---
Stefan Becker
E-Mail: Stefan.Becker at nokia.com