X-Git-Url: http://erislabs.net/gitweb/?a=blobdiff_plain;f=doc%2Fposix-functions%2Fpopen.texi;h=597231802313ccc3ca69d503bb161c70fe3f19f5;hb=ce05829e2da40a92966f0e3d78d1b40c6f1e85b5;hp=f0aa80120533e8a695b0502ff9e7f8d608e34409;hpb=2b6c08c775ae4e80b52aa41058ea5939f778b44b;p=gnulib.git

diff --git a/doc/posix-functions/popen.texi b/doc/posix-functions/popen.texi
index f0aa80120..597231802 100644
--- a/doc/posix-functions/popen.texi
+++ b/doc/posix-functions/popen.texi
@@ -2,14 +2,23 @@
 @section @code{popen}
 @findex popen
 
-POSIX specification: @url{http://www.opengroup.org/susv3xsh/popen.html}
+POSIX specification:@* @url{http://www.opengroup.org/onlinepubs/9699919799/functions/popen.html}
 
-Gnulib module: ---
+Gnulib module: popen
 
 Portability problems fixed by Gnulib:
 @itemize
+@item
+Some platforms start the child with closed stdin or stdout if the
+standard descriptors were closed in the parent:
+Cygwin 1.5.x.
 @end itemize
 
 Portability problems not fixed by Gnulib:
 @itemize
+@item
+Some platforms mistakenly set the close-on-exec bit, then if it is
+cleared by the application, the platform then leaks file descriptors
+from earlier @code{popen} calls into subsequent @code{popen} children:
+Cygwin 1.5.x.
 @end itemize