"dangling pointer" error while compiling w/mingw32-gcc

[Dietmar May]

When compiling openocd - master (commit 480d4e1) using msys64/mingw32, I get the following error and the build aborts:

src/helper/configuration.c: In function 'get_home_dir':

      | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
src/helper/configuration.c:160:30: note: 'homepath' declared here
  160 |                         char homepath[MAX_PATH];
      |                              ^~~~~~~~

  184 |                 home_path = alloc_printf("%s", home);
      |                             ^~~~~~~~~~~~~~~~~~~~~~~~
src/helper/configuration.c:160:30: note: 'homepath' declared here
  160 |                         char homepath[MAX_PATH];
      |                              ^~~~~~~~
cc1.exe: all warnings being treated as errors
make[2]: *** [Makefile:3503: src/helper/configuration.lo] Error 1

configure has been run using

--host=i686-w64-mingw32

Looks like mingw32 is pulling in gcc 12.1 now:

pacman -Q | grep mingw-w64-i686-gcc

mingw-w64-i686-gcc 12.1.0-2

I was able to compile by downgrading to gcc 11.2.0-9

src/helper/configuration.c:182:29: error: dangling pointer 'home' to 'homepath' may be used [-Werror=dangling-pointer=]   182 |                 home_path = alloc_printf("%s/%s", home, append_path); src/helper/configuration.c:184:29: error: dangling pointer 'home' to 'homepath' may be used [-Werror=dangling-pointer=] wget https://repo.msys2.org/mingw/i686/mingw-w64-i686-gcc-11.2.0-9-any.pkg.tar.zst.sig

wget https://repo.msys2.org/mingw/i686/mingw-w64-i686-gcc-libs-11.2.0-9-any.pkg.tar.zst

pacman -U mingw-w64-i686-gcc-11.2.0-9-any.pkg.tar.zst mingw-w64-i686-gcc-libs-11.2.0-9-any.pkg.tar.zst

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