deps: Add build recipe for GIF

Author: hisergiorojas

src/cmake/build_gif.cmake

@@ -0,0 +1,43 @@
+# Copyright Contributors to the OpenImageIO project.
+# SPDX-License-Identifier: Apache-2.0
+# https://github.com/AcademySoftwareFoundation/OpenImageIO
+
+######################################################################
+# GIF by hand!
+######################################################################
+
+set_cache (GIF_BUILD_VERSION 5.2.1 "GIFLIB version for local builds")
+set (GIF_URL "https://downloads.sourceforge.net/project/giflib/giflib-${GIF_BUILD_VERSION}.tar.gz")
+set (GIF_URL_HASH SHA256=31da5562f44c5f15d63340a09a4fd62b48c45620cd302f77a6d9acf0077879bd)
+
+set_cache (GIF_BUILD_SHARED_LIBS ${LOCAL_BUILD_SHARED_LIBS_DEFAULT}
+           DOC "Should execute a local GIF build, if necessary, build shared libraries" ADVANCED)
+
+string (MAKE_C_IDENTIFIER ${GIF_BUILD_VERSION} GIF_VERSION_IDENT)
+
+# Build setup using ExternalProject
+build_dependency_with_cmake(GIF
+    VERSION         ${GIF_BUILD_VERSION}
+    URL             ${GIF_URL}
+    URL_HASH        ${GIF_URL_HASH}
+    CMAKE_ARGS
+        -D CMAKE_INSTALL_PREFIX=${GIF_LOCAL_INSTALL_DIR}
+        -D BUILD_SHARED_LIBS=${GIF_BUILD_SHARED_LIBS}
+        -D CMAKE_INSTALL_LIBDIR=lib
+    PATCH_COMMAND
+        curl -L https://sourceforge.net/p/giflib/bugs/_discuss/thread/4e811ad29b/c323/attachment/Makefile.patch -o Makefile.patch &&
+        patch -p0 < Makefile.patch
+)
+
+# Set up paths for find_package
+set (GIF_ROOT ${GIF_LOCAL_INSTALL_DIR})
+
+# Signal to caller that we need to find again at the installed location
+set (GIF_REFIND TRUE)
+set (GIF_REFIND_VERSION ${GIF_BUILD_VERSION})
+set (GIF_REFIND_ARGS CONFIG)
+
+if (GIF_BUILD_SHARED_LIBS)
+    install_local_dependency_libs (GIF GIF)
+endif ()
+