build: streamline CMAKE_MODULE_PATH interaction

.gitignore

@@ -1,6 +1,6 @@
 # lsp keeps state here
 .cache
 # typical build directory
-build
+.build*
 # lsp: symlink to file in build directory (established manually)
 compile_commands.json

CMakeLists.txt

@@ -6,8 +6,7 @@ project(xo_pywebutil VERSION 0.1)
 enable_language(CXX)
 
 # common XO cmake macros (see github.com:Rconybea/xo-cmake)
-include(xo_macros/xo_cxx)
-include(xo_macros/code-coverage)
+include(cmake/xo-bootstrap-macros.cmake)
 
 # ----------------------------------------------------------------
 # unit test setup

README.md

@@ -23,6 +23,17 @@ $ make install
 ```
 (also see .github/workflows/main.yml)
 
+## Examples
+
+Assumes `xo-pywebutil` installed to `~/local2/lib`
+```
+$ PYTHONPATH=~/local2/lib:$PYTHONPATH python
+>>> import xo_pywebutil
+>>> dir(xo_pywebutil)
+['EndpointDescr', 'StreamEndpointDescr', '__doc__', '__file__', '__loader__', '__name__', '__package__', '__spec__']
+>>> from xo_pywebutil import *
+```
+
 ## Development
 
 ### build for unit test coverage

cmake/xo-bootstrap-macros.cmake

@@ -0,0 +1,12 @@
+if (("${CMAKE_MODULE_PATH}" STREQUAL "") OR ("${CMAKE_MODULE_PATH}" STREQUAL "prefix"))
+    # default to typical install location for xo-project-macros
+    set(CMAKE_MODULE_PATH ${CMAKE_INSTALL_PREFIX}/share/cmake)
+endif()
+
+message("-- CMAKE_INSTALL_PREFIX=${CMAKE_INSTALL_PREFIX}")
+message("-- CMAKE_MODULE_PATH=${CMAKE_MODULE_PATH}")
+
+# needs to have been installed somewhere on CMAKE_MODULE_PATH,
+# (e.g. from xo-cmake with the same value for CMAKE_INSTALL_PREFIX)
+#
+include(xo_macros/xo-project-macros)