Tru64 UNIX 5.1A AC_GAI_STRERROR make failure (ITS#2643)

[rjackson@gmu.edu]

Full_Name: Richard Jackson
Version: 2.1.22
OS: Tru64 UNIX 5.1A
URL: ftp://ftp.openldap.org/incoming/
Submission from: (NULL) (129.174.1.73)


Make of 2.1.22 fails to build on Tru64 UNIX 5.1A glorious Alphaserver
using Compaq C compiler.

(cd .libs && rm -f libldap.la && ln -s ../libldap.la libldap.la)
/bin/cc -pthread -I../../include        -I../../include     -c apitest.c
/bin/sh /usr/local/src/openldap_2.1.22/openldap-2.1.22/libtool --mode=link 
/bin
/cc -static -pthread     -o apitest apitest.o libldap.la
../../libraries/liblber
/liblber.la ../../libraries/liblutil/liblutil.a
/bin/cc -pthread -o apitest apitest.o  ./.libs/libldap.a
/usr/local/src/openldap
_2.1.22/openldap-2.1.22/libraries/liblber/.libs/liblber.a
../../libraries/liblbe
r/.libs/liblber.a ../../libraries/liblutil/liblutil.a
ld:
Unresolved:
AC_GAI_STRERROR
*** Exit 1
Stop.
*** Exit 1
Stop.
*** Exit 1
Stop.

# /bin/cc -V
Compaq C V6.4-014 on Compaq Tru64 UNIX V5.1A (Rev. 1885)
Compiler Driver V6.4-215 (sys) cc Driver

I tracked the problem down to AC_GAI_STRERROR being defined in
include/ac/socket.h if HAVE_GETADDRINFO is defined.

I noted configure did not find getaddrinfo, 'checking for getaddrinfo... no'

config.log reported...

---------------------------------------------------
configure:10224: checking for getaddrinfo
configure:10253: /bin/cc -o conftest -pthread   conftest.c  1>&5
ld:
Unresolved:
getaddrinfo
configure: failed program was:
#line 10229 "configure"
#include "confdefs.h"
/* System header to define __stub macros and hopefully few prototypes,
    which can conflict with char getaddrinfo(); below.  */
#include <assert.h>
/* Override any gcc2 internal prototype to avoid an error.  */
/* We use char because int might match the return type of a gcc2
    builtin and then its argument prototype would still apply.  */
char getaddrinfo();
char (*f)();

int main() {

/* The GNU C library defines this for functions which it implements
    to always fail with ENOSYS.  Some functions are actually named
    something starting with __ and the normal name is an alias.  */
#if defined (__stub_getaddrinfo) || defined (__stub___getaddrinfo)
choke me
#else
f = getaddrinfo;
#endif

; return 0; }
---------------------------------------------------

If '#include <netdb.h>' is added to conftest.c via configure progress is made
but the C compiler still complains...

---------------------------------------------------
# /bin/cc -o conftest -pthread conftest.c
cc: Error: conftest.c, line 8: In this declaration, the type of "ogetaddrinfo"
i
s not compatible with the type of a previous declaration of "ogetaddrinfo" at
li
ne number 283 in file /usr/include/netdb.h. (notcompat)
char getaddrinfo();
-----^
cc: Warning: conftest.c, line 19: In this statement, the referenced type of the
pointer value "ogetaddrinfo" is "function (pointer to const char, pointer to
con
st char, pointer to const struct addrinfo, pointer to pointer to struct
addrinfo
) returning int", which is not compatible with "function () returning char".
(pt
rmismatch)
f = getaddrinfo;
^
---------------------------------------------------

However, changing the following

char getaddrinfo();
char (*f)();

to

int getaddrinfo();
int (*f)();

Makes the C compiler very happy.  Please advise.