[gcc r13-3646] c++: Use in-process client when networking is disabled

[Torbjorn Svensson <azoff@gcc.gnu.org>]

https://gcc.gnu.org/g:97752b7c446e513677e9d49b0c57427d41aaebde

commit r13-3646-g97752b7c446e513677e9d49b0c57427d41aaebde
Author: Torbjörn SVENSSON <torbjorn.svensson@foss.st.com>
Date:   Tue Oct 25 16:11:05 2022 +0200

    c++: Use in-process client when networking is disabled
    
    Without the patch, the output for bad-mapper-3.C would be:
    
    /src/gcc/gcc/testsuite/g++.dg/modules/bad-mapper-3.C:2:1: error: unknown Compiled Module Interface: no such module
    
    As this line is unexpected, the test case would fail.
    The same problem can also be seen for g++.dg/modules/bad-mapper-2.C.
    
    gcc/cp/ChangeLog:
    
            * mapper-client.cc: Use in-process client when networking is
            disabled.
    
    gcc/testsuite/ChangeLog:
    
            * g++.dg/modules/bad-mapper-3.C: Update dg-error pattern.
    
    Co-Authored-By: Yvan ROUX <yvan.roux@foss.st.com>
    Signed-off-by: Torbjörn SVENSSON <torbjorn.svensson@foss.st.com>

Diff:
---
 gcc/cp/mapper-client.cc                     | 4 ++++
 gcc/testsuite/g++.dg/modules/bad-mapper-3.C | 2 +-
 2 files changed, 5 insertions(+), 1 deletion(-)

diff --git a/gcc/cp/mapper-client.cc b/gcc/cp/mapper-client.cc
index fe9544b5ba4..8e331c0e896 100644
--- a/gcc/cp/mapper-client.cc
+++ b/gcc/cp/mapper-client.cc
@@ -227,6 +227,8 @@ module_client::open_module_client (location_t loc, const char *o,
 		int fd = -1;
 #if CODY_NETWORKING
 		fd = Cody::OpenLocal (&errmsg, name.c_str () + 1);
+#else
+		errmsg = "disabled";
 #endif
 		if (fd >= 0)
 		  c = new module_client (fd, fd);
@@ -254,6 +256,8 @@ module_client::open_module_client (location_t loc, const char *o,
 			int fd = -1;
 #if CODY_NETWORKING
 			fd = Cody::OpenInet6 (&errmsg, name.c_str (), port);
+#else
+			errmsg = "disabled";
 #endif
 			name[colon] = ':';
 
diff --git a/gcc/testsuite/g++.dg/modules/bad-mapper-3.C b/gcc/testsuite/g++.dg/modules/bad-mapper-3.C
index 9dab332ccb2..ab14dd39a67 100644
--- a/gcc/testsuite/g++.dg/modules/bad-mapper-3.C
+++ b/gcc/testsuite/g++.dg/modules/bad-mapper-3.C
@@ -1,6 +1,6 @@
 //  { dg-additional-options "-fmodules-ts -fmodule-mapper=localhost:172477262" }
 import unique3.bob;
-// { dg-error {failed connecting mapper 'localhost:172477262'} "" { target *-*-* } 0 }
+// { dg-error {failed (connecting|disabled) mapper 'localhost:172477262'} "" { target *-*-* } 0 }
 // { dg-prune-output "fatal error:" }
 // { dg-prune-output "failed to read" }
 // { dg-prune-output "compilation terminated" }