From: Olivier Hainque Date: Thu, 3 Feb 2022 15:57:32 +0000 (+0000) Subject: Prevent secondary warning from diagnostic tweak in gthr-vxworks.h X-Git-Tag: basepoints/gcc-14~4190 X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=372044a67ec8346f4f308c5fe79d9e1cb6e7e6c6;p=thirdparty%2Fgcc.git Prevent secondary warning from diagnostic tweak in gthr-vxworks.h Within gthr-vxworks.h, we prevent C++ errors from missing declarations in some system headers by prepending their inclusion with a #pragma GCC diagnostic ignored "-Wstrict-prototypes" But Wstrict-prototypes is internally registered as valid for C/ObjC only, not C++, and this trick in turn triggers a Wpragma warning with -Wsystem-headers. This change just arranges to ignore the secondary warning locally. 2021-02-03 Olivier Hainque * config/gthr-vxworks.h: Prevent Wpragma warning for the pragma diagnostics on Wstrict-prototypes. --- diff --git a/libgcc/config/gthr-vxworks.h b/libgcc/config/gthr-vxworks.h index 9861a11511a8..31c4b9f2557f 100644 --- a/libgcc/config/gthr-vxworks.h +++ b/libgcc/config/gthr-vxworks.h @@ -38,8 +38,11 @@ see the files COPYING3 and COPYING.RUNTIME respectively. If not, see #include <_vxworks-versions.h> /* Some VxWorks headers profusely use typedefs of a pointer to a function with - undefined number of arguments. */ + undefined number of arguments. Arrange to ignore declaration errors in C++, + which is achievable by ignoring Wstrict-prototypes diagnostics even when the + option is registered as only valid for c/objc. */ #pragma GCC diagnostic push + #pragma GCC diagnostic ignored "-Wpragmas" #pragma GCC diagnostic ignored "-Wstrict-prototypes" #include #pragma GCC diagnostic pop