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-rw-r--r--libcpp/init.c7
1 files changed, 6 insertions, 1 deletions
diff --git a/libcpp/init.c b/libcpp/init.c
index 0148586..16ff202 100644
--- a/libcpp/init.c
+++ b/libcpp/init.c
@@ -110,6 +110,8 @@ static const struct lang_flags lang_defaults[] =
/* CXX14 */ { 1, 1, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0 },
/* GNUCXX17 */ { 1, 1, 1, 1, 1, 0, 1, 1, 1, 1, 1, 1, 0, 1 },
/* CXX17 */ { 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 1 },
+ /* GNUCXX2A */ { 1, 1, 1, 1, 1, 0, 1, 1, 1, 1, 1, 1, 0, 1 },
+ /* CXX2A */ { 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 1 },
/* ASM */ { 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 }
};
@@ -497,7 +499,10 @@ cpp_init_builtins (cpp_reader *pfile, int hosted)
if (CPP_OPTION (pfile, cplusplus))
{
- if (CPP_OPTION (pfile, lang) == CLK_CXX17
+ if (CPP_OPTION (pfile, lang) == CLK_CXX2A
+ || CPP_OPTION (pfile, lang) == CLK_GNUCXX2A)
+ _cpp_define_builtin (pfile, "__cplusplus 201709L");
+ else if (CPP_OPTION (pfile, lang) == CLK_CXX17
|| CPP_OPTION (pfile, lang) == CLK_GNUCXX17)
_cpp_define_builtin (pfile, "__cplusplus 201703L");
else if (CPP_OPTION (pfile, lang) == CLK_CXX14