forked from minhngoc25a/freetype2
f7c6a06cb7
I am currently trying to compile FreeType for CHERI-extended ISAs
(CHERI-RISC-V and Arm's Morello), but I am getting compiler warnings
from the `FT_UINT_TO_POINTER` macro. When compiling with the CHERI
Clang compiler, not using `uinptr_t` for casts between integers an
pointers results in the following `-Werror` build failures:
```
In file included from .../src/truetype/truetype.c:22:
.../src/truetype/ttgload.c:1925:22: error:
cast from provenance-free integer type to pointer type will
give pointer that can not be dereferenced
[-Werror,-Wcheri-capability-misuse]
node->data = FT_UINT_TO_POINTER( glyph_index );
^
.../include/freetype/internal/compiler-macros.h:79:34: note:
expanded from macro 'FT_UINT_TO_POINTER'
```
* include/freetype/internal/compiler-macros.h (FT_UINT_TO_POINTER):
The ISO C standard compliant fix for this would be to use
`uintptr_t` from `stdint.h`, but I am not sure if this is supported
by the minimum compiler version. Therefore, use the
compiler-defined `__UINTPTR_TYPE__` macro (supported in GCC 4.6+ and
Clang since about 3.0) before checking for `_WIN64` and falling back
to `unsigned long`.
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| .. | ||
| config | ||
| internal | ||
| freetype.h | ||
| ftadvanc.h | ||
| ftbbox.h | ||
| ftbdf.h | ||
| ftbitmap.h | ||
| ftbzip2.h | ||
| ftcache.h | ||
| ftchapters.h | ||
| ftcid.h | ||
| ftcolor.h | ||
| ftdriver.h | ||
| fterrdef.h | ||
| fterrors.h | ||
| ftfntfmt.h | ||
| ftgasp.h | ||
| ftglyph.h | ||
| ftgxval.h | ||
| ftgzip.h | ||
| ftimage.h | ||
| ftincrem.h | ||
| ftlcdfil.h | ||
| ftlist.h | ||
| ftlogging.h | ||
| ftlzw.h | ||
| ftmac.h | ||
| ftmm.h | ||
| ftmodapi.h | ||
| ftmoderr.h | ||
| ftotval.h | ||
| ftoutln.h | ||
| ftparams.h | ||
| ftpfr.h | ||
| ftrender.h | ||
| ftsizes.h | ||
| ftsnames.h | ||
| ftstroke.h | ||
| ftsynth.h | ||
| ftsystem.h | ||
| fttrigon.h | ||
| fttypes.h | ||
| ftwinfnt.h | ||
| t1tables.h | ||
| ttnameid.h | ||
| tttables.h | ||
| tttags.h | ||