Huh, finally implement writev(2) wrapper that actually works. Boys, never ever

try to use writev(2) in a non-blocking mode, especially on sockets. Not only
this makes handling of EAGAIN rather weird, but in the case of sockets makes
your code subject of a ENOBUFS, which is absolutely unclear how to handle
properly. *sigh*

Bump PORTREVISION.

1 files changed, 57 insertions, 0 deletions

diff --git a/devel/ORBit2/files/patch-configure.in b/devel/ORBit2/files/patch-configure.in
new file mode 100644
index 000000000000..abd947f9dfe7
--- /dev/null
+++ b/devel/ORBit2/files/patch-configure.in
@@ -0,0 +1,57 @@
+
+$FreeBSD$
+
+--- configure.in	2001/10/27 12:08:05	1.1
++++ configure.in	2001/10/27 12:33:26
+@@ -241,33 +241,29 @@
+ dnl This generates warnings from autoconf...
+ AC_C_BIGENDIAN
+ 
++AC_MSG_CHECKING(how many vectors writev is capable to handle)
+ AC_TRY_RUN([
+-#include <fcntl.h>
++#include <sys/types.h>
+ #include <sys/uio.h>
+-#define NIOVECS 50
+-int main(int argc, char *argv[])
++#include <fcntl.h>
++#include <stdio.h>
++int main()
+ {
+-	char dumbuf[20] = "\n";
+-	struct iovec iovecs[NIOVECS];
+-	int i,fd;
+-
+-	for(i = 0; i < NIOVECS; i++) {
+-		iovecs[i].iov_base = dumbuf;
+-		iovecs[i].iov_len = 1;
+-	}
+-
+-	fd=open("/dev/null", O_WRONLY);
+-	if(fd==-1)
+-		return(1);
+-
+-	if(writev(fd, iovecs, NIOVECS) < 0)
+-		return 1;
+-
++	FILE *f;
++	int fd, i;
++	static struct iovec iovecs[4097];
++	if ((f = fopen("conftestval", "w")) == NULL || \
++	    (fd = open("/dev/null", O_WRONLY)) < 0)
++		exit(1);
++	for (i = 1; i < 4098 && writev(fd, iovecs, i) >= 0; i++);
++	fprintf(f, "%d\n", i - 1);
++	fclose(f);
+ 	close(fd);
+-	return 0;
++	exit(0);
+ }
+-], , AC_DEFINE(HAVE_LIMITED_WRITEV), AC_DEFINE(HAVE_LIMITED_WRITEV))
+-AC_SUBST(HAVE_LIMITED_WRITEV)
++], MAXIOV=`cat conftestval`, MAXIOV=16, MAXIOV=16)dnl
++AC_MSG_RESULT($MAXIOV)
++AC_SUBST(MAXIOV)
+ 
+ #######################
+ # type alignment test #