RE: struct passwd problem : running on XP

["Dave Korn" <dave dot korn at artimi dot com>]

On 16 January 2007 10:29, Corinna Vinschen wrote:

> On Jan 16 08:53, DEMARCHE wrote:
>> I wanted to have my program independant of
>> the Cygwin environment using -mno- cygwin option. "gcc -mno-cygwin -c
>> mqutils.c ". My aim was to deploy my program onto Windows Operating system
>> wihtout cygwin installed. 

  Heh.  Then what on earth is it supposed to do when it tries to look up a
password and there's no such thing as /etc/passwd and no such library function
as getpwent?

>> Here is the result :
>> - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
>> gcc -mno-cygwin -g -I. -I"/cygdrive/c/Program Files/IBM/WebSphere
>> MQ/Tools/c/include"  -c mqutils.c

  See, with -mno-cygwin, you really get what you're asking for:  NO cygwin!

>> In file included from mqutils.c:34:
>> /usr/include/pwd.h:53: error: parse error before "uid_t"
>> /usr/include/pwd.h:53: warning: no semicolon at end of struct or union
>> /usr/include/pwd.h:54: warning: data definition has no type or storage
>> class /usr/include/pwd.h:59: error: parse error before '}' token
>> /usr/include/pwd.h:62: warning: parameter names (without types) in
>> function declaration /usr/include/pwd.h:66: error: parse error before
>> "struct" 
>> mqutils.c: In function `PutMsg':
>> mqutils.c:106: error: dereferencing pointer to incomplete type
>> make: *** [mqutils.o] Error 1
>> - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

  So, no /etc/passwd, no getpwent, no struct passwd, no uids or gids, nothing
posix-y at all.  You have a logical problem in your design here: you want to
use cygwin features, yet you want to use them without cygwin....

> Your header files seem to be broken

  Corinna, you missed the mno-cygwin flag I think?  I wouldn't expect to find
all these things in mingw headers.  There's that bug in the shared 'gcc'
driver that still allows cygwin's /usr/include in the default search path with
-mno-cygwin, which is why pwd.h is even found, but then all the necessary
types (uid_t, gid_t etc) in sys/types.h are different because the correct
(mingw) include/sys subdir is chosen.  


    cheers,
      DaveK
-- 
Can't think of a witty .sigline today....


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