Originally reported downstream at https://bugs.gentoo.org/922448.

Note that this is on ppc32.

```
powerpc-unknown-linux-gnu-gcc  -DHAVE_MKSTEMP -DHAVE_FILE64 -DHAVE_FSEEKO -DHAVE_MKSTEMP64 -DHAVE_FONTCONFIG -DHAVE_LIBIDN -DHAVE_SETLOCALE   -DHAVE_BSWAP32 -DHAVE_BYTESWAP_H -DHAVE_STRERROR -DHAVE_ISNAN -DHAVE_ISINF  -DHAVE_PREAD_PWRITE=1 -DGS_RECURSIVE_MUTEXATTR=PTHREAD_MUTEX_RECURSIVE -O2 -DNDEBUG -fPIC  -fvisibility=hidden -DGSDLLEXPORT="__attribute__((visibility(\"default\")))" -Wall -Wstrict-prototypes -Wundef -Wmissing-declarations -Wmissing-prototypes -Wwrite-strings -fno-strict-aliasing -Werror=declaration-after-statement -fno-builtin -fno-common -Werror=return-type -Wno-unused-local-typedefs -DHAVE_STDINT_H=1 -DHAVE_DIRENT_H=1 -DHAVE_SYS_DIR_H=1 -DHAVE_SYS_TIME_H=1 -DHAVE_SYS_TIMES_H=1 -DHAVE_INTTYPES_H=1 -DHAVE_LIBDL=1 -DGX_COLOR_INDEX_TYPE="unsigned long long" -D__USE_UNIX98=1  -DBUILD_PDF=1 -I./pdf -O2 -mcpu=7450 -mtune=7450 -pipe -DHAVE_RESTRICT=1  -DUSE_LIBPAPER  -fno-strict-aliasing -DHAVE_POPEN_PROTO=1   -fPIC  -fvisibility=hidden -DGSDLLEXPORT="__attribute__((visibility(\"default\")))" -I./soobj -I./base -I./devices  -DWHICH_CMS="lcms2"  -o ./soobj/gdevxini.o -c ./devices/gdevxini.c
./devices/gdevxini.c: In function 'x_set_buffer':
./devices/gdevxini.c:626:69: error: passing argument 4 of 'gdev_mem_data_size' from incompatible pointer type [-Wincompatible-pointer-types]
  626 |             if (gdev_mem_data_size(mdev, xdev->width, xdev->height, &space) < 0 ||
      |                                                                     ^~~~~~
      |                                                                     |
      |                                                                     ulong * {aka long unsigned int *}
In file included from ./devices/gdevxini.c:23:
./base/gxdevmem.h:192:46: note: expected 'size_t *' {aka 'unsigned int *'} but argument is of type 'ulong *' {aka 'long unsigned int *'}
  192 |                          int height, size_t *size);
      |                                      ~~~~~~~~^~~~
```

Newer compiler versions are planning on making incompatible-pointer-types error out by default which is what's happening here (gcc 14).