From 468c525470ccf66cd841ddb810c7835d638fec50 Mon Sep 17 00:00:00 2001
From: Roland Conybeare <rconybeare@gmail.com>
Date: Tue, 19 Sep 2023 14:34:41 -0400
Subject: [PATCH] indentlog: + hello example + cmake install attempt

---
 CMakeLists.txt               | 24 +++++++++++++++++-------
 cmake/nestlog.cmake          |  3 +--
 example/CMakeLists.txt       |  1 +
 example/hello/CMakeLists.txt |  2 ++
 example/hello/hello.cpp      |  5 +++++
 include/CMakeLists.txt       |  6 ------
 6 files changed, 26 insertions(+), 15 deletions(-)
 create mode 100644 example/hello/CMakeLists.txt
 create mode 100644 example/hello/hello.cpp
 delete mode 100644 include/CMakeLists.txt

diff --git a/CMakeLists.txt b/CMakeLists.txt
index aeeda3ed..d819b716 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -4,13 +4,23 @@ project(nestlog VERSION 0.1)
 enable_language(CXX)
 enable_testing()
 
-include(cmake/nestlog.cmake)
-
-add_subdirectory(include)
-add_subdirectory(example)
-
-# this doesn't work in include/CMakeLists.txt
-install(TARGETS indentlog DESTINATION include)
+# always write compile_commands.json
+set(CMAKE_EXPORT_COMPILE_COMMANDS ON CACHE INTERNAL "")
 
 set(CMAKE_INSTALL_PREFIX /home/roland/local)
 set(CMAKE_INSTALL_RPATH /home/roland/local/lib)
+
+include(cmake/nestlog.cmake)
+add_subdirectory(example)
+
+# header-only library
+#add_library(indentlog INTERFACE)
+#target_include_directories(indentlog INTERFACE
+#  $<BUILD_INTERFACE:${PROJECT_SOURCE_DIR}/include>
+#  $<INSTALL_INTERFACE:include>
+#  )
+#
+#install(TARGETS indentlog
+#  PUBLIC_HEADER DESTINATION include)  # COMPONENT Development
+
+install(DIRECTORY ${PROJECT_SOURCE_DIR}/include/ DESTINATION include)
diff --git a/cmake/nestlog.cmake b/cmake/nestlog.cmake
index 30736007..4a1a26ae 100644
--- a/cmake/nestlog.cmake
+++ b/cmake/nestlog.cmake
@@ -25,7 +25,6 @@ macro(xo_include_options target)
     # (2) clangd (run from emacs lsp-mode) can find them
     #
     if(CMAKE_EXPORT_COMPILE_COMMANDS)
-      set(CMAKE_CXX_STANDARD_INCLUDE_DIRECTORIES
-      ${CMAKE_CXX_IMPLICIT_INCLUDE_DIRECTORIES})
+      set(CMAKE_CXX_STANDARD_INCLUDE_DIRECTORIES ${CMAKE_CXX_IMPLICIT_INCLUDE_DIRECTORIES})
     endif()
 endmacro()
diff --git a/example/CMakeLists.txt b/example/CMakeLists.txt
index 7f8eb99d..0f629f7a 100644
--- a/example/CMakeLists.txt
+++ b/example/CMakeLists.txt
@@ -7,6 +7,7 @@ set(CMAKE_EXPORT_COMPILE_COMMANDS ON CACHE INTERNAL "")
 
 #include(cmake/FindSphinx.cmake)
 
+add_subdirectory(hello)
 add_subdirectory(ex1)
 add_subdirectory(ex2)
 add_subdirectory(ex3)
diff --git a/example/hello/CMakeLists.txt b/example/hello/CMakeLists.txt
new file mode 100644
index 00000000..d6f694e6
--- /dev/null
+++ b/example/hello/CMakeLists.txt
@@ -0,0 +1,2 @@
+add_executable(hello hello.cpp)
+xo_include_options(hello)
diff --git a/example/hello/hello.cpp b/example/hello/hello.cpp
new file mode 100644
index 00000000..5147511e
--- /dev/null
+++ b/example/hello/hello.cpp
@@ -0,0 +1,5 @@
+#include <iostream>
+
+int main(int argc, char ** argv) {
+    std::cout << "Hello, world!" << std::endl;
+}
diff --git a/include/CMakeLists.txt b/include/CMakeLists.txt
deleted file mode 100644
index 72fcb50d..00000000
--- a/include/CMakeLists.txt
+++ /dev/null
@@ -1,6 +0,0 @@
-# header-only library
-add_library(indentlog INTERFACE)
-target_include_directories(indentlog INTERFACE
-  $<BUILD_INTERFACE:${PROJECT_SOURCE_DIR}/include>
-  $<INSTALL_INTERFACE:include>
-  )