[Ada] Reword the impact of -minimal on the debugger

2019-12-16  Joel Brobecker  <brobecker@adacore.com>

gcc/ada/

	* doc/gnat_ugn/building_executable_programs_with_gnat.rst
	(_Switches_for_gnatbind): Reword the section explaining the
	impact of -minimal on debugging.
	* gnat_ugn.texi: Regenerate.

From-SVN: r279416

gcc/ada/ChangeLog

+2019-12-16  Joel Brobecker  <brobecker@adacore.com>
+
+	* doc/gnat_ugn/building_executable_programs_with_gnat.rst
+	(_Switches_for_gnatbind): Reword the section explaining the
+	impact of -minimal on debugging.
+	* gnat_ugn.texi: Regenerate.
+
 2019-12-16  Gary Dismukes  <dismukes@adacore.com>
 
 	* libgnat/g-exptty.adb, libgnat/g-exptty.ads: Typo fixes and

gcc/ada/doc/gnat_ugn/building_executable_programs_with_gnat.rst

@@ -6540,7 +6540,10 @@ be presented in subsequent sections.
   longer generated. **Warning:** this option comes with the following
   limitations:
 
-  * Debugging will not work;
+  * Starting the program's execution in the debugger will cause it to
+    stop at the start of the ``main`` function instead of the main subprogram. 
+    This can be worked around by manually inserting a breakpoint on that 
+    subprogram and resuming the program's execution until reaching that breakpoint.
   * Programs using GNAT.Compiler_Version will not link.
 
   .. index:: -n  (gnatbind)

gcc/ada/gnat_ugn.texi

@@ -15968,7 +15968,10 @@ limitations:
 @itemize *
 
 @item 
-Debugging will not work;
+Starting the program's execution in the debugger will cause it to
+stop at the start of the @code{main} function instead of the main subprogram.
+This can be worked around by manually inserting a breakpoint on that
+subprogram and resuming the program's execution until reaching that breakpoint.
 
 @item 
 Programs using GNAT.Compiler_Version will not link.