Install all headers to same directory

Author: CGamesPlay

crates/c-api/CMakeLists.txt

@@ -145,15 +145,15 @@ target_include_directories(wasmtime INTERFACE ${CMAKE_BINARY_DIR}/include)
 configure_file(
   ${CMAKE_CURRENT_SOURCE_DIR}/include/wasmtime/conf.h.in
   ${WASMTIME_GENERATED_CONF_H})
-add_custom_target(conf_h
-  DEPENDS ${WASMTIME_GENERATED_CONF_H})
 
 include(GNUInstallDirs)
 install(DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}/include/
         DESTINATION ${CMAKE_INSTALL_INCLUDEDIR}
+        COMPONENT Headers
         FILES_MATCHING REGEX "\\.hh?$")
 install(FILES ${WASMTIME_GENERATED_CONF_H}
-        DESTINATION ${CMAKE_INSTALL_INCLUDEDIR}/wasmtime)
+        DESTINATION ${CMAKE_INSTALL_INCLUDEDIR}/wasmtime
+        COMPONENT Headers)
 install(FILES ${WASMTIME_SHARED_FILES} ${WASMTIME_STATIC_FILES}
         DESTINATION ${CMAKE_INSTALL_LIBDIR})
 
@@ -172,3 +172,5 @@ add_custom_target(doc
     COMMAND doxygen ${DOXYGEN_CONF_OUT}
     DEPENDS ${WASMTIME_GENERATED_CONF_H} ${DOXYGEN_CONF_OUT}
     WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR})
+add_custom_target(headers
+    COMMAND ${CMAKE_COMMAND} --install ${CMAKE_BINARY_DIR} --component Headers)

crates/c-api/README.md

@@ -59,7 +59,6 @@ fn main() {
     // Wasm C API headers.
     cfg
         .include(std::env::var("DEP_WASMTIME_C_API_INCLUDE").unwrap());
-        .include(std::env::var("DEP_WASMTIME_C_API_CONF_INCLUDE").unwrap());
 
     // Compile your C code.
     cfg

crates/c-api/build.rs

@@ -28,14 +28,14 @@ fn main() {
     let mut config = cmake::Config::new(&dir);
     config
         .define("WASMTIME_DISABLE_ALL_FEATURES", "ON")
-        .build_target("conf_h");
+        .always_configure(true)
+        .build_target("headers");
     for f in FEATURES {
         if env::var_os(format!("CARGO_FEATURE_{}", f)).is_some() {
             config.define(format!("WASMTIME_FEATURE_{}", f), "ON");
         }
     }
     let dst = config.build();
 
-    println!("cargo:conf-include={}/build/include", dst.display());
-    println!("cargo:include={}/include", dir.display());
+    println!("cargo:include={}/include", dst.display());
 }