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authorPatrick Palka <ppalka@redhat.com>2024-03-04 21:32:44 -0500
committerPatrick Palka <ppalka@redhat.com>2024-03-04 21:32:44 -0500
commit08edf85f747b9ac1850f9688c8a1bc7c2bf6b4e5 (patch)
tree0ddd922015c6047ae47ebf182eeb178911b47720 /gcc/c-family
parent264e3ad419cf71b10e7951a23750ac3507e21df9 (diff)
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c++/modules: relax diagnostic about GMF contents
Issuing a hard error when the GMF doesn't consist only of preprocessing directives happens to be inconvenient for automated testcase reduction via cvise. This patch relaxes this diagnostic into a pedwarn that can be disabled with -Wno-global-module. gcc/c-family/ChangeLog: * c.opt (Wglobal-module): New warning. gcc/cp/ChangeLog: * parser.cc (cp_parser_translation_unit): Relax GMF contents error into a pedwarn. gcc/ChangeLog: * doc/invoke.texi (-Wno-global-module): Document. gcc/testsuite/ChangeLog: * g++.dg/modules/friend-6_a.C: Pass -Wno-global-module instead of -Wno-pedantic. Remove now unnecessary preprocessing directives from GMF. Reviewed-by: Jason Merrill <jason@redhat.com>
Diffstat (limited to 'gcc/c-family')
-rw-r--r--gcc/c-family/c.opt4
1 files changed, 4 insertions, 0 deletions
diff --git a/gcc/c-family/c.opt b/gcc/c-family/c.opt
index b7a4a1a..56cccf2 100644
--- a/gcc/c-family/c.opt
+++ b/gcc/c-family/c.opt
@@ -802,6 +802,10 @@ Wframe-address
C ObjC C++ ObjC++ Var(warn_frame_address) Warning LangEnabledBy(C ObjC C++ ObjC++,Wall)
Warn when __builtin_frame_address or __builtin_return_address is used unsafely.
+Wglobal-module
+C++ ObjC++ Var(warn_global_module) Warning Init(1)
+Warn about the global module fragment not containing only preprocessing directives.
+
Wif-not-aligned
C ObjC C++ ObjC++ Var(warn_if_not_aligned) Init(1) Warning
Warn when the field in a struct is not aligned.