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CREATE_PROJECT: CMAKE: Fix importing SDL2 when it was built using CMake

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When SDL is built using CMake, Find_Package imports a target instead of
defining variables. If a target was imported we now define the include
path and linker flags variables from the target's properties.

Using imported targets is a best practice. Ideally, we should define an
imported target when we detect variables were defined.
However, the linker flags variable would need to be parsed into a
library path and a list of libraries, making that approach impractical.
This commit is contained in:
Bastien Bouclet 2018-04-22 09:18:04 +02:00
parent 086ab443c0
commit 04c321d200
1 changed files with 11 additions and 2 deletions
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13
devtools/create_project/cmake.cpp
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@ -37,7 +37,7 @@ CMakeProvider::CMakeProvider(StringList &global_warnings, std::map<std::string,
const CMakeProvider::Library *CMakeProvider::getLibraryFromFeature(const char *feature, bool useSDL2) const {
static const Library s_libraries[] = {
{ "sdl", kSDLVersion1, "FindSDL", "SDL", "SDL_INCLUDE_DIR", "SDL_LIBRARY", 0 },
{ "sdl", kSDLVersion2, 0, "SDL2", "SDL2_INCLUDE_DIRS", "SDL2_LIBRARIES", 0 },
{ "sdl", kSDLVersion2, 0, "SDL2", 0, "SDL2_LIBRARIES", 0 },
{ "freetype", kSDLVersionAny, "FindFreetype", "Freetype", "FREETYPE_INCLUDE_DIRS", "FREETYPE_LIBRARIES", 0 },
{ "libz", kSDLVersionAny, "FindZLIB", "ZLIB", "ZLIB_INCLUDE_DIRS", "ZLIB_LIBRARIES", 0 },
{ "png", kSDLVersionAny, "FindPNG", "PNG", "PNG_INCLUDE_DIRS", "PNG_LIBRARIES", 0 },
@ -84,8 +84,17 @@ void CMakeProvider::createWorkspace(const BuildSetup &setup) {
workspace << "include_directories(${" << setup.projectDescription << "_SOURCE_DIR} ${" << setup.projectDescription << "_SOURCE_DIR}/engines "
"$ENV{"<<LIBS_DEFINE<<"}/include .)\n\n";
workspace << "# Libraries and features\n";
workspace << "# Libraries and features\n\n";
writeFeatureLibSearch(setup, workspace, "sdl");
workspace << "# Depending on how SDL2 was built, there can be either and imported target or flags variables\n";
workspace << "# Define the flags variables from the imported target if necessary\n";
workspace << "if (TARGET SDL2::SDL2)\n";
workspace << " get_target_property(SDL2_INCLUDE_DIRS SDL2::SDL2 INTERFACE_INCLUDE_DIRECTORIES)\n";
workspace << " get_target_property(SDL2_LIBRARIES SDL2::SDL2 LOCATION)\n";
workspace << "endif()\n";
workspace << "include_directories(${SDL2_INCLUDE_DIRS})\n\n";
for (FeatureList::const_iterator i = setup.features.begin(), end = setup.features.end(); i != end; ++i) {
if (!i->enable || featureExcluded(i->name)) continue;