[sane-devel] WARNING: /usr/src/linux/include/scsi/sg.h: present but cannot be compiled

[Carlo Wood]

As per request of the configure script:

configure:6654: checking /usr/src/linux/include/scsi/sg.h usability
configure:6666: gcc -c -g -O2 -W -Wall  -DPATH_SANE_CONFIG_DIR=$(configdir) 	  -DPATH_SANE_DATA_DIR=$(datadir) 	  -DV_MAJOR=1 -DV_MINOR=0 conftest.c >&5
In file included from conftest.c:71:
/usr/src/linux/include/scsi/sg.h:96: error: variable or field `__user' declared void
/usr/src/linux/include/scsi/sg.h:96: warning: no semicolon at end of struct or union
/usr/src/linux/include/scsi/sg.h:96: error: syntax error before '*' token
/usr/src/linux/include/scsi/sg.h:98: error: syntax error before '}' token
/usr/src/linux/include/scsi/sg.h:98: warning: type defaults to `int' in declaration of `sg_iovec_t'
/usr/src/linux/include/scsi/sg.h:98: warning: data definition has no type or storage class
/usr/src/linux/include/scsi/sg.h:109: error: variable or field `__user' declared void
/usr/src/linux/include/scsi/sg.h:109: warning: no semicolon at end of struct or union
/usr/src/linux/include/scsi/sg.h:109: error: syntax error before '*' token
/usr/src/linux/include/scsi/sg.h:111: error: syntax error before '*' token
/usr/src/linux/include/scsi/sg.h:111: warning: type defaults to `int' in declaration of `cmdp'
/usr/src/linux/include/scsi/sg.h:111: warning: data definition has no type or storage class
/usr/src/linux/include/scsi/sg.h:112: error: syntax error before '*' token
/usr/src/linux/include/scsi/sg.h:112: warning: type defaults to `int' in declaration of `sbp'
/usr/src/linux/include/scsi/sg.h:112: warning: data definition has no type or storage class
/usr/src/linux/include/scsi/sg.h:116: error: syntax error before '*' token
/usr/src/linux/include/scsi/sg.h:116: warning: type defaults to `int' in declaration of `usr_ptr'
/usr/src/linux/include/scsi/sg.h:116: warning: data definition has no type or storage class
/usr/src/linux/include/scsi/sg.h:126: error: syntax error before '}' token
/usr/src/linux/include/scsi/sg.h:126: warning: type defaults to `int' in declaration of `sg_io_hdr_t'
/usr/src/linux/include/scsi/sg.h:126: warning: data definition has no type or storage class
/usr/src/linux/include/scsi/sg.h:176: error: variable or field `__user' declared void
/usr/src/linux/include/scsi/sg.h:176: warning: no semicolon at end of struct or union
/usr/src/linux/include/scsi/sg.h:176: error: syntax error before '*' token
/usr/src/linux/include/scsi/sg.h:180: error: syntax error before '}' token
/usr/src/linux/include/scsi/sg.h:180: warning: type defaults to `int' in declaration of `sg_req_info_t'
/usr/src/linux/include/scsi/sg.h:180: warning: data definition has no type or storage class
configure:6672: $? = 1
configure: failed program was:
| /* confdefs.h.  */
| 
| #define PACKAGE_NAME "sane-backends"
| #define PACKAGE_TARNAME "sane-backends"
| #define PACKAGE_VERSION "1.0.15"
| #define PACKAGE_STRING "sane-backends 1.0.15"
| #define PACKAGE_BUGREPORT "sane-devel@lists.alioth.debian.org"
| #define PACKAGE "sane-backends"
| #define VERSION "1.0.15"
| #define SANE_DLL_V_MAJOR 1
| #define SANE_DLL_V_MINOR 0
| #define SANE_DLL_V_BUILD 15
| #define _GNU_SOURCE 1
| #define STDC_HEADERS 1
| #define HAVE_SYS_TYPES_H 1
| #define HAVE_SYS_STAT_H 1
| #define HAVE_STDLIB_H 1
| #define HAVE_STRING_H 1
| #define HAVE_MEMORY_H 1
| #define HAVE_STRINGS_H 1
| #define HAVE_INTTYPES_H 1
| #define HAVE_STDINT_H 1
| #define HAVE_UNISTD_H 1
| #define HAVE_DLFCN_H 1
| #define HAVE_DLOPEN 1
| #define HAVE_LIBM 1
| #define HAVE_LIBNSL 1
| #define HAVE_LIBIEEE1284 1
| #define STDC_HEADERS 1
| #define HAVE_FCNTL_H 1
| #define HAVE_UNISTD_H 1
| #define HAVE_SYS_SELECT_H 1
| #define HAVE_SYS_TIME_H 1
| #define HAVE_SYS_SHM_H 1
| #define HAVE_SCSI_SG_H 1
| /* end confdefs.h.  */
| #include <stdio.h>
| #if HAVE_SYS_TYPES_H
| # include <sys/types.h>
| #endif
| #if HAVE_SYS_STAT_H
| # include <sys/stat.h>
| #endif
| #if STDC_HEADERS
| # include <stdlib.h>
| # include <stddef.h>
| #else
| # if HAVE_STDLIB_H
| #  include <stdlib.h>
| # endif
| #endif
| #if HAVE_STRING_H
| # if !STDC_HEADERS && HAVE_MEMORY_H
| #  include <memory.h>
| # endif
| # include <string.h>
| #endif
| #if HAVE_STRINGS_H
| # include <strings.h>
| #endif
| #if HAVE_INTTYPES_H
| # include <inttypes.h>
| #else
| # if HAVE_STDINT_H
| #  include <stdint.h>
| # endif
| #endif
| #if HAVE_UNISTD_H
| # include <unistd.h>
| #endif
| #include </usr/src/linux/include/scsi/sg.h>
configure:6694: result: no
configure:6698: checking /usr/src/linux/include/scsi/sg.h presence
configure:6708: gcc -E  -DPATH_SANE_CONFIG_DIR=$(configdir) 	  -DPATH_SANE_DATA_DIR=$(datadir) 	  -DV_MAJOR=1 -DV_MINOR=0 conftest.c
configure:6714: $? = 0
configure:6734: result: yes
configure:6747: WARNING: /usr/src/linux/include/scsi/sg.h: present but cannot be compiled
configure:6749: WARNING: /usr/src/linux/include/scsi/sg.h:     check for missing prerequisite headers?
configure:6751: WARNING: /usr/src/linux/include/scsi/sg.h: see the Autoconf documentation
configure:6753: WARNING: /usr/src/linux/include/scsi/sg.h:     section "Present But Cannot Be Compiled"
configure:6755: WARNING: /usr/src/linux/include/scsi/sg.h: proceeding with the preprocessor's result
configure:6757: WARNING: /usr/src/linux/include/scsi/sg.h: in the future, the compiler will take precedence


This is on a machine with kernel 2.6.8

-- 
Carlo Wood <carlo@alinoe.com>