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authorJerry DeLisle <jvdelisle@gcc.gnu.org>2025-09-02 15:58:26 -0700
committerJerry DeLisle <jvdelisle@gcc.gnu.org>2025-09-02 15:58:26 -0700
commit071b4126c613881f4cb25b4e5c39032964827f88 (patch)
tree7ed805786566918630d1d617b1ed8f7310f5fd8e /libcpp/init.cc
parent845d23f3ea08ba873197c275a8857eee7edad996 (diff)
parentcaa1c2f42691d68af4d894a5c3e700ecd2dba080 (diff)
downloadgcc-devel/gfortran-test.zip
gcc-devel/gfortran-test.tar.gz
gcc-devel/gfortran-test.tar.bz2
Merge branch 'master' into gfortran-testdevel/gfortran-test
Diffstat (limited to 'libcpp/init.cc')
-rw-r--r--libcpp/init.cc11
1 files changed, 11 insertions, 0 deletions
diff --git a/libcpp/init.cc b/libcpp/init.cc
index e9732af..eb495e2 100644
--- a/libcpp/init.cc
+++ b/libcpp/init.cc
@@ -246,6 +246,7 @@ cpp_create_reader (enum c_lang lang, cpp_hash_table *table,
CPP_OPTION (pfile, dollars_in_ident) = 1;
CPP_OPTION (pfile, warn_dollars) = 1;
CPP_OPTION (pfile, warn_variadic_macros) = 1;
+ CPP_OPTION (pfile, suppress_builtin_macro_warnings) = 0;
CPP_OPTION (pfile, warn_builtin_macro_redefined) = 1;
CPP_OPTION (pfile, cpp_warn_implicit_fallthrough) = 0;
CPP_OPTION (pfile, warn_header_guard) = 0;
@@ -593,6 +594,8 @@ cpp_init_builtins (cpp_reader *pfile, int hosted)
&& (! CPP_OPTION (pfile, stdc_0_in_system_headers)
|| CPP_OPTION (pfile, std)))
_cpp_define_builtin (pfile, "__STDC__ 1");
+ else if (CPP_OPTION (pfile, cplusplus))
+ cpp_warn (pfile, "__STDC__");
if (CPP_OPTION (pfile, cplusplus))
{
@@ -618,6 +621,14 @@ cpp_init_builtins (cpp_reader *pfile, int hosted)
_cpp_define_builtin (pfile, "__cplusplus 201103L");
else
_cpp_define_builtin (pfile, "__cplusplus 199711L");
+ cpp_warn (pfile, "__cplusplus");
+ if (CPP_OPTION (pfile, lang) >= CLK_GNUCXX11)
+ {
+ cpp_warn (pfile, "__STDC_VERSION__");
+ cpp_warn (pfile, "__STDC_MB_MIGHT_NEQ_WC__");
+ if (CPP_OPTION (pfile, lang) < CLK_GNUCXX23)
+ cpp_warn (pfile, "__STDCPP_STRICT_POINTER_SAFETY__");
+ }
}
else if (CPP_OPTION (pfile, lang) == CLK_ASM)
_cpp_define_builtin (pfile, "__ASSEMBLER__ 1");