Handle absolute include and lib paths in cmake

(cherry picked from commit 4fc7410)
libsdl-org · Mar 3, 2025 · d185bae · d185bae
1 parent ccaffa2
commit d185bae
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Showing 2 changed files with 13 additions and 2 deletions.
diff --git a/CMakeLists.txt b/CMakeLists.txt
@@ -1123,6 +1123,17 @@ if(SDLIMAGE_INSTALL)
       set(SDL_PKGCONFIG_PREFIX "${CMAKE_INSTALL_PREFIX}")
     endif()
 
+    if(IS_ABSOLUTE "${CMAKE_INSTALL_INCLUDEDIR}")
+      set(INCLUDEDIR_FOR_PKG_CONFIG "${CMAKE_INSTALL_INCLUDEDIR}")
+    else()
+      set(INCLUDEDIR_FOR_PKG_CONFIG "\${prefix}/${CMAKE_INSTALL_INCLUDEDIR}")
+    endif()
+    if(IS_ABSOLUTE "${CMAKE_INSTALL_LIBDIR}")
+      set(LIBDIR_FOR_PKG_CONFIG "${CMAKE_INSTALL_LIBDIR}")
+    else()
+      set(LIBDIR_FOR_PKG_CONFIG "\${prefix}/${CMAKE_INSTALL_LIBDIR}")
+    endif()
+
     string(JOIN " " PC_REQUIRES ${PC_REQUIRES})
     string(JOIN " " PC_LIBS ${PC_LIBS})
     configure_file(cmake/sdl3-image.pc.in sdl3-image.pc @ONLY)

diff --git a/cmake/sdl3-image.pc.in b/cmake/sdl3-image.pc.in
@@ -1,7 +1,7 @@
 prefix=@SDL_PKGCONFIG_PREFIX@
 exec_prefix=${prefix}
-libdir=${prefix}/@CMAKE_INSTALL_LIBDIR@
-includedir=${prefix}/@CMAKE_INSTALL_INCLUDEDIR@
+libdir=@LIBDIR_FOR_PKG_CONFIG@
+includedir=@INCLUDEDIR_FOR_PKG_CONFIG@
 
 Name: @PROJECT_NAME@
 Description: image loading library for Simple DirectMedia Layer