remove pkgconfig support

CMakeLists.txt

@@ -412,18 +412,6 @@ write_basic_package_version_file(
 	COMPATIBILITY AnyNewerVersion
 )
 
-# pkgconfig support
-set(prefix ${CMAKE_INSTALL_PREFIX})
-set(exec_prefix ${CMAKE_INSTALL_PREFIX})
-set(libdir ${CMAKE_INSTALL_PREFIX}/${CMAKE_INSTALL_LIBDIR})
-set(includedir ${CMAKE_INSTALL_PREFIX}/${CMAKE_INSTALL_INCLUDEDIR})
-
-configure_file(${CMAKE_CURRENT_SOURCE_DIR}/libcifpp.pc.in
-	${CMAKE_CURRENT_BINARY_DIR}/libcifpp.pc.in @ONLY)
-file(GENERATE OUTPUT ${CMAKE_CURRENT_BINARY_DIR}/libcifpp.pc
-	INPUT ${CMAKE_CURRENT_BINARY_DIR}/libcifpp.pc.in)
-install(FILES ${CMAKE_CURRENT_BINARY_DIR}/libcifpp.pc DESTINATION ${CMAKE_INSTALL_LIBDIR}/pkgconfig)
-
 if(ENABLE_TESTING)
 	enable_testing()
 

examples/CMakeLists.txt

+cmake_minimum_required(VERSION 3.15)
+project(cifpp_example LANGUAGES CXX)
+
+find_package(cifpp REQUIRED)
+
+add_executable(example example.cpp)
+target_link_libraries(example cifpp::cifpp)
\ No newline at end of file

examples/example.cpp

@@ -8,7 +8,10 @@ namespace fs = std::filesystem;
 int main(int argc, char *argv[])
 {
 	if (argc != 2)
+	{
+		std::cerr << "Usage: example <inputfile>" << std::endl;
 		exit(1);
+	}
 
 	cif::file file = cif::pdb::read(argv[1]);
 

examples/makefile

-CXX = c++ -std=c++17
-CXXFLAGS = $(shell pkg-config --cflags libcifpp)
-LIBS = $(shell pkg-config --libs libcifpp)
-
-all: example
-
-example: example.cpp
-	$(CXX) -o $@ $? $(CXXFLAGS) $(LIBS)

libcifpp.pc.in

-prefix=@prefix@
-exec_prefix=@exec_prefix@
-libdir=@libdir@
-includedir=@includedir@
-datalibdir=@datarootdir@/libcifpp
-
-Name: libcifpp
-Description: C++ library for the manipulation of mmCIF files.
-Version: @PACKAGE_VERSION@
-
-Requires: zlib
-Libs: -L${libdir} -lcifpp
-Cflags: -I${includedir} -pthread