Add flymake as a git submodule

Easier to setup and pin flymake versions as a submodule.

Author: trflynn89

.gitmodules

@@ -10,3 +10,9 @@
 [submodule "extern/nlohmann/json"]
 	path = extern/nlohmann/json
 	url = https://github.com/nlohmann/json.git
+[submodule "extern/flymake"]
+	path = extern/flymake
+	url = https://github.com/trflynn89/flymake.git
+[submodule "extern/trflynn89/flymake"]
+	path = extern/trflynn89/flymake
+	url = https://github.com/trflynn89/flymake.git

build/ci/Makefile

@@ -5,10 +5,12 @@
 .PHONY: push
 .PHONY: run
 
+SOURCE_ROOT := $(CURDIR)/../..
+
 # Import the build system.
-include /usr/local/src/fly/system.mk
-include /usr/local/src/fly/config.mk
-include /usr/local/src/fly/flags.mk
+include $(SOURCE_ROOT)/extern/trflynn89/flymake/src/system.mk
+include $(SOURCE_ROOT)/extern/trflynn89/flymake/src/config.mk
+include $(SOURCE_ROOT)/extern/trflynn89/flymake/src/flags.mk
 
 # Docker settings.
 USER := trflynn89

build/nix/Makefile

@@ -1,7 +1,7 @@
 SOURCE_ROOT := $(CURDIR)/../..
 VERSION := $(shell cat $(SOURCE_ROOT)/VERSION.md)
 
-include /usr/local/src/fly/api.mk
+include $(SOURCE_ROOT)/extern/trflynn89/flymake/src/api.mk
 
 # Main targets.
 $(eval $(call ADD_TARGET, libfly, fly, LIB))
@@ -32,4 +32,4 @@ $(eval $(call EXCLUDE_FROM_COVERAGE, fly/types/numeric/detail/literal_parser.hpp
 # Paths to exclude from generation of compilation database.
 $(eval $(call EXCLUDE_FROM_COMPILATION_DATABASE, extern/))
 
-include /usr/local/src/fly/build.mk
+include $(SOURCE_ROOT)/extern/trflynn89/flymake/src/build.mk

extern/README.md

@@ -1,14 +1,18 @@
-# External Libraries
+# External Projects
 
-This directory contains all third-party libraries used by libfly for testing purposes only. The core
-libfly library does not have any depedencies (except for the STL). The libraries here are only for
-unit testing and benchmarking comparisons.
+This directory contains all third-party projects used by libfly. Most are for benchmarking and
+testing purposes only.
 
-Libraries used for unit testing:
+The only dependency required by libfly is its build system (for Linux and macOS), flymake, which was
+originally part of libfly itself:
+
+* [flymake](https://github.com/trflynn89/flymake)
+
+For unit testing, libfly uses the Catch2 framework:
 
 * [Catch2](https://github.com/catchorg/Catch2)
 
-Libraries used for benchmarking:
+All other submodules are only for benchmark comparisons:
 
 * [{fmt}](https://github.com/fmtlib/fmt)
 * [Boost.JSON](https://github.com/boostorg/json)

extern/trflynn89/LICENSE.md

@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2021 Tim Flynn
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.