Add MinGW support for sdl2-image

Author: jmid

packages/conf-mingw-w64-sdl2-image-i686/conf-mingw-w64-sdl2-image-i686.1/opam

@@ -0,0 +1,20 @@
+opam-version: "2.0"
+synopsis: "Provides sdl2-image for i686 mingw-w64 (32-bit x86)"
+description: "Ensure that the i686 version of sdl2-image for the mingw-w64 project is available"
+maintainer: "https://github.com/ocaml/opam-repository/issues"
+authors: "Sam Lantinga"
+license: "Zlib"
+homepage: "http://www.libsdl.org/projects/SDL_image/"
+bug-reports: "https://github.com/ocaml/opam-repository/issues"
+flags: conf
+available: os = "win32"
+build: ["pkgconf" "--personality=i686-w64-mingw32" "SDL2_image"]
+depends: [
+  "conf-pkg-config" {build}
+  "conf-mingw-w64-gcc-i686" {build}
+]
+depexts: [
+  ["mingw64-i686-SDL2_image"] {os = "win32" & os-distribution = "cygwin"}
+  # MSys2 does not offer an i686 SDL2_image package (Sep 2025)
+  # https://packages.msys2.org/base/mingw-w64-SDL2_image
+]

packages/conf-mingw-w64-sdl2-image-x86_64/conf-mingw-w64-sdl2-image-x86_64.1/opam

@@ -0,0 +1,19 @@
+opam-version: "2.0"
+synopsis: "Provides sdl2-image for x86_64 mingw-w64 (64-bit x86_64)"
+description: "Ensure that the x86_64 version of sdl2-image for the mingw-w64 project is available"
+maintainer: "https://github.com/ocaml/opam-repository/issues"
+authors: "Sam Lantinga"
+license: "Zlib"
+homepage: "http://www.libsdl.org/projects/SDL_image/"
+bug-reports: "https://github.com/ocaml/opam-repository/issues"
+flags: conf
+available: os = "win32"
+build: ["pkgconf" "--personality=x86_64-w64-mingw32" "SDL2_image"]
+depends: [
+  "conf-pkg-config" {build}
+  "conf-mingw-w64-gcc-x86_64" {build}
+]
+depexts: [
+  ["mingw64-x86_64-SDL2_image"] {os = "win32" & os-distribution = "cygwin"}
+  ["mingw-w64-x86_64-SDL2_image"] {os = "win32" & os-distribution = "msys2"}
+]

packages/conf-sdl2-image/conf-sdl2-image.1/opam

@@ -2,7 +2,11 @@ opam-version: "2.0"
 maintainer: "https://github.com/ocaml/opam-repository/issues"
 homepage: "http://www.libsdl.org/projects/SDL_image/"
 license: "Zlib"
-build: [["pkg-config" "SDL2_image"]]
+build: [
+  ["pkgconf" "--personality=i686-w64-mingw32" "SDL2_image"] {os = "win32" & os-distribution = "cygwin" & host-arch-x86_32:installed}
+  ["pkgconf" "--personality=x86_64-w64-mingw32" "SDL2_image"] {os = "win32" & os-distribution = "cygwin" & host-arch-x86_64:installed}
+  ["pkg-config" "SDL2_image"] {os != "win32" | os-distribution != "cygwin"}
+]
 depexts: [
   ["sdl2_image-dev"] {os-distribution = "alpine"}
   ["libsdl2-image-dev"] {os-family = "debian"}
@@ -21,7 +25,11 @@ depexts: [
 synopsis: "Virtual package relying on a sdl2-image system installation"
 description:
   "This package can only install if libsdl2-image is installed on the system."
-depends: ["conf-pkg-config" {build}]
+depends: [
+  "conf-pkg-config" {build}
+  ("host-arch-x86_32" {os = "win32" & os-distribution != "cygwinports"} & "conf-mingw-w64-sdl2-image-i686" {os = "win32" & os-distribution != "cygwinports"} |
+   "host-arch-x86_64" {os = "win32" & os-distribution != "cygwinports"} & "conf-mingw-w64-sdl2-image-x86_64" {os = "win32" & os-distribution != "cygwinports"})
+]
 bug-reports: "https://github.com/ocaml/opam-repository/issues"
 authors: "Sam Lantinga"
 flags: conf