+2017-10-27 Martin Liska <mliska@suse.cz>
+
+ PR gcov-profile/82457
+ * doc/invoke.texi: Document that one needs a non-strict ISO mode
+ for fork-like functions to be properly instrumented.
+
2017-10-27 Richard Biener <rguenther@suse.de>
PR middle-end/81659
Run the program on a representative workload to generate the arc profile
information. This may be repeated any number of times. You can run
concurrent instances of your program, and provided that the file system
-supports locking, the data files will be correctly updated. Also
-@code{fork} calls are detected and correctly handled (double counting
-will not happen).
+supports locking, the data files will be correctly updated. Unless
+a strict ISO C dialect option is in effect, @code{fork} calls are
+detected and correctly handled without double counting.
@item
For profile-directed optimizations, compile the source files again with