diff options
| author | Craig A. Berry <craigberry@mac.com> | 2000-11-06 18:45:30 -0500 |
|---|---|---|
| committer | Jarkko Hietaniemi <jhi@iki.fi> | 2000-11-07 12:56:39 +0000 |
| commit | c44c482642024dcc060fbe4eb4461ec18af07e2d (patch) | |
| tree | 1cfd674246b43b9ed0f449335c8924396b5f1e98 /configure.com | |
| parent | f91328b77ca256011ef4b589e0aec2eb124e44ec (diff) | |
| download | perl-c44c482642024dcc060fbe4eb4461ec18af07e2d.tar.gz | |
configure.com and st-lock.t changes for
Message-Id: <0011079735.AA973576259@univpress.com>
p4raw-id: //depot/perl@7589
Diffstat (limited to 'configure.com')
| -rw-r--r-- | configure.com | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/configure.com b/configure.com index 8063bb6a8e..46867e2b8d 100644 --- a/configure.com +++ b/configure.com @@ -3476,6 +3476,54 @@ $ tmp = "fcntl" $ GOSUB inlibc $ d_fcntl = tmp $! +$! Check for fcntl locking capability +$! +$ echo4 "Checking if fcntl-based file locking works... " +$ tmp = "undef" +$ IF d_fcntl .EQS. "define" +$ THEN +$ OS +$ WS "#include <stdio.h>" +$ WS "#if defined(__DECC) || defined(__DECCXX)" +$ WS "#include <stdlib.h>" +$ WS "#endif" +$ WS "#include <fcntl.h>" +$ WS "#include <unistd.h>" +$ WS "int main() {" +$ WS "#if defined(F_SETLK) && defined(F_SETLKW)" +$ WS " struct flock flock;" +$ WS " int retval, fd;" +$ WS " fd = open(""try.c"", O_RDONLY);" +$ WS " flock.l_type = F_RDLCK;" +$ WS " flock.l_whence = SEEK_SET;" +$ WS " flock.l_start = flock.l_len = 0;" +$ WS " retval = fcntl(fd, F_SETLK, &flock);" +$ WS " close(fd);" +$ WS " (retval < 0 ? printf(""undef\n"") : printf(""define\n""));" +$ WS "#else" +$ WS " printf(""undef\n"");" +$ WS "#endif" +$ WS "}" +$ CS +$ GOSUB link_ok +$ IF compile_status .EQ. good_compile .AND. link_status .EQ. good_link +$ THEN +$ GOSUB just_mcr_it +$ IF tmp .EQS. "define" +$ THEN +$ echo4 "Yes, it seems to work." +$ ELSE +$ echo4 "Nope, it didn't work." +$ ENDIF +$ ELSE +$ echo4 "I'm unable to compile the test program, so I'll assume not." +$ tmp = "undef" +$ ENDIF +$ ELSE +$ echo4 "Nope, since you don't even have fcntl()." +$ ENDIF +$ d_fcntl_can_lock = tmp +$! $! Check for memchr $! $ OS |