[Bug 271520] graphics/sdl_image: fix build with clang 16
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Date: Fri, 19 May 2023 20:16:14 UTC
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=271520
Bug ID: 271520
Summary: graphics/sdl_image: fix build with clang 16
Product: Ports & Packages
Version: Latest
Hardware: Any
OS: Any
Status: New
Severity: Affects Some People
Priority: ---
Component: Individual Port(s)
Assignee: amdmi3@FreeBSD.org
Reporter: dim@FreeBSD.org
Flags: maintainer-feedback?(amdmi3@FreeBSD.org)
Assignee: amdmi3@FreeBSD.org
Clang 16 has a new error about incompatible function types, which shows
up when building graphics/sdl_image:
IMG_png.c:266:30: error: incompatible function pointer types assigning to
'png_infop (*)(png_structp)' (aka 'struct png_info_def *(*)(struct
png_struct_def *)') from 'png_infop (png_const_structrp)' (aka 'struct
png_info_def *(const struct png_struct_def *restrict)')
[-Wincompatible-function-pointer-types]
lib.png_create_info_struct = png_create_info_struct;
^ ~~~~~~~~~~~~~~~~~~~~~~
IMG_png.c:269:20: error: incompatible function pointer types assigning to
'png_uint_32 (*)(png_structp, png_infop, png_uint_32 *, png_uint_32 *, int *,
int *, int *, int *, int *)' (aka 'unsigned int (*)(struct png_struct_def *,
struct png_info_def *, unsigned int *, unsigned int *, int *, int *, int *, int
*, int *)') from 'png_uint_32 (png_const_structrp, png_const_inforp,
png_uint_32 *, png_uint_32 *, int *, int *, int *, int *, int *)' (aka
'unsigned int (const struct png_struct_def *restrict, const struct png_info_def
*restrict, unsigned int *, unsigned int *, int *, int *, int *, int *, int *)')
[-Wincompatible-function-pointer-types]
lib.png_get_IHDR = png_get_IHDR;
^ ~~~~~~~~~~~~
Similar errors occur for IMG_webp.c. I backported a few changes from
SDL_image 2 that fix the prototypes to be compatible with the versions
of graphics/png and and graphics/webp.
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