From: Stuart Henderson <stu@spacehopper.org>
Subject: Re: UPDATE: libwebp - CMake
To: Brad Smith <brad@comstyle.com>, <ports@openbsd.org>
Cc: <sthen@openbsd.org>
Date: Wed, 21 Jan 2026 23:43:14 +0000

it'll be due to dropping the static library, iirc something is messed up 
with detecting shared libs in python and it doesn't work correctly unless 
there's either a .a or .so symlink

-- 
  Sent from a phone, apologies for poor formatting.

On 21 January 2026 23:09:21 Brad Smith <brad@comstyle.com> wrote:

> Here is a conversion of libwebp back to using CMake again.
>
> I was wondering why OpenImageIO's WebP support wasn't being
> built and its because of the missing CMake module in libwebp.
>
> But as stated with the previous attempt something breaks in
> py-Pillow. When I added webp=enable it complained about not
> being able to find the library.
>
> Could someone who understands Python / py-Pillow try to take
> a look into what is going on?
>
>
> Index: Makefile
> ===================================================================
> RCS file: /cvs/ports/graphics/libwebp/Makefile,v
> retrieving revision 1.38
> diff -u -p -u -p -r1.38 Makefile
> --- Makefile	22 Jul 2025 12:33:14 -0000	1.38
> +++ Makefile	10 Jan 2026 04:13:21 -0000
> @@ -3,7 +3,7 @@ COMMENT=	Google WebP image format conver
> GH_ACCOUNT=	webmproject
> GH_PROJECT=	libwebp
> GH_TAGNAME=	v1.6.0
> -REVISION=	0
> +REVISION=	1
> CATEGORIES=	graphics
>
> SHARED_LIBS +=  sharpyuv             0.1      # 0.0
> @@ -17,8 +17,9 @@ HOMEPAGE=	https://developers.google.com/
> # BSD
> PERMIT_PACKAGE=	Yes
>
> -WANTLIB=	${COMPILER_LIBCXX} Lerc c gif jpeg lzma m png pthread \
> -		tiff z zstd
> +WANTLIB=	c gif jpeg m png pthread tiff z
> +
> +MODULES=	devel/cmake
>
> COMPILER=	base-clang ports-gcc base-gcc
>
> @@ -27,21 +28,8 @@ LIB_DEPENDS=	graphics/giflib \
> 		graphics/png \
> 		graphics/tiff
>
> -AUTOCONF_VERSION=	2.72
> -AUTOMAKE_VERSION=	1.17
> -
> -CONFIGURE_STYLE=	autoreconf
> -
> -CONFIGURE_ARGS= --enable-everything
> -
> -# this will use libSDL to build stuff under extras otherwise
> -# (a static webp viewer which is more or less useless, and not
> -# even installed by default)
> -CONFIGURE_ARGS +=--disable-gl \
> -		--disable-sdl
> -
> -CONFIGURE_ENV=	CPPFLAGS="-I${LOCALBASE}/include" \
> -		LDFLAGS="-L${LOCALBASE}/lib"
> +CONFIGURE_ARGS=	-DBUILD_SHARED_LIBS=ON \
> +		-DWEBP_BUILD_VWEBP=OFF
>
> DEBUG_PACKAGES=	${BUILD_PACKAGES}
>
> Index: pkg/PLIST
> ===================================================================
> RCS file: /cvs/ports/graphics/libwebp/pkg/PLIST,v
> retrieving revision 1.14
> diff -u -p -u -p -r1.14 PLIST
> --- pkg/PLIST	31 May 2025 04:34:57 -0000	1.14
> +++ pkg/PLIST	10 Jan 2026 04:13:21 -0000
> @@ -14,20 +14,10 @@ include/webp/sharpyuv/
> include/webp/sharpyuv/sharpyuv.h
> include/webp/sharpyuv/sharpyuv_csp.h
> include/webp/types.h
> -@static-lib lib/libsharpyuv.a
> -lib/libsharpyuv.la
> @lib lib/libsharpyuv.so.${LIBsharpyuv_VERSION}
> -@static-lib lib/libwebp.a
> -lib/libwebp.la
> @lib lib/libwebp.so.${LIBwebp_VERSION}
> -@static-lib lib/libwebpdecoder.a
> -lib/libwebpdecoder.la
> @lib lib/libwebpdecoder.so.${LIBwebpdecoder_VERSION}
> -@static-lib lib/libwebpdemux.a
> -lib/libwebpdemux.la
> @lib lib/libwebpdemux.so.${LIBwebpdemux_VERSION}
> -@static-lib lib/libwebpmux.a
> -lib/libwebpmux.la
> @lib lib/libwebpmux.so.${LIBwebpmux_VERSION}
> lib/pkgconfig/libsharpyuv.pc
> lib/pkgconfig/libwebp.pc
> @@ -40,3 +30,9 @@ lib/pkgconfig/libwebpmux.pc
> @man man/man1/img2webp.1
> @man man/man1/webpinfo.1
> @man man/man1/webpmux.1
> +share/WebP/
> +share/WebP/cmake/
> +share/WebP/cmake/WebPConfig.cmake
> +share/WebP/cmake/WebPConfigVersion.cmake
> +share/WebP/cmake/WebPTargets${MODCMAKE_BUILD_SUFFIX}
> +share/WebP/cmake/WebPTargets.cmake