--- libpng-1.6.42.orig/CMakeLists.txt	2024-01-29 17:51:33.000000000 -0300
+++ libpng-1.6.42/CMakeLists.txt	2024-01-31 11:42:49.593925216 -0300
@@ -985,7 +985,7 @@
 # We use the same files like ./configure, so we have to set its vars.
 # Only do this on Windows for Cygwin - the files don't make much sense
 # outside of a UNIX look-alike.
-if(NOT WIN32 OR CYGWIN OR MINGW)
+if(1)
   set(prefix      ${CMAKE_INSTALL_PREFIX})
   set(exec_prefix ${CMAKE_INSTALL_PREFIX})
   set(libdir      ${CMAKE_INSTALL_FULL_LIBDIR})
@@ -1055,13 +1055,13 @@
   install(FILES png.5
           DESTINATION ${CMAKE_INSTALL_MANDIR}/man5)
   # Install the pkg-config files.
+  install(FILES ${CMAKE_CURRENT_BINARY_DIR}/libpng.pc
+          DESTINATION ${CMAKE_INSTALL_LIBDIR}/pkgconfig)
+  install(FILES ${CMAKE_CURRENT_BINARY_DIR}/libpng${PNGLIB_ABI_VERSION}.pc
+          DESTINATION ${CMAKE_INSTALL_LIBDIR}/pkgconfig)
   if(NOT CMAKE_HOST_WIN32 OR CYGWIN OR MINGW)
-    install(FILES ${CMAKE_CURRENT_BINARY_DIR}/libpng.pc
-            DESTINATION ${CMAKE_INSTALL_LIBDIR}/pkgconfig)
     install(PROGRAMS ${CMAKE_CURRENT_BINARY_DIR}/libpng-config
             DESTINATION ${CMAKE_INSTALL_BINDIR})
-    install(FILES ${CMAKE_CURRENT_BINARY_DIR}/libpng${PNGLIB_ABI_VERSION}.pc
-            DESTINATION ${CMAKE_INSTALL_LIBDIR}/pkgconfig)
     install(PROGRAMS ${CMAKE_CURRENT_BINARY_DIR}/libpng${PNGLIB_ABI_VERSION}-config
             DESTINATION ${CMAKE_INSTALL_BINDIR})
   endif()