Lecrapouille/MyMakefile

WIP version 1

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Lecrapouille commented

TODO:

  • download thirdpart since we usually follow their HEAD: log SHA1 of their HEAD since thirdpart can evolve and breaking API. Keep a trace.
  • !!! IMPORTANT: manage multiple targets by project !!!
  • !!! make CXX=clang++-7 or emmake make always redo compilation from scratch ! Why ? !!!
  • SimForth: how to compile shared libs and target at the same time. idea replace OBJS by LIBS.
  • !!! IMPORTANT: disable debug and/or backward when compiling library or add -ldw !!! else backward segfault"
  • !!! compile library + in debug mode: add -debug libfoo-debug.so
  • Take into account CWEB
  • Take into account emscripten
  • Add bash script checking PKG_LIBS and SYSTEM_LIBS in thirdpart libs
  • Add bash script checking compilation flags: gcc $ALL_FLAGS foo.c => parse compilation flag not detected. Not not use them
  • The Makefile for unit tests cannot know TARGET of the main project. In the same idea: Makefile for compiling examples cannot know the name of the lib or the target of the main project.
  • Where to install .pc files ? /usr/share/pkgconfig/ or /usr/lib/pkgconfig ?
  • Cannot multiple inclusion of config.hpp** (first attempt failed)
  • Generate a config.hpp file (instead/in addition of a version.h file)
  • Rename RULE_INSTALL_DOC to RULE_INSTALL_PROJECT and change Installing: doc => /usr/share/xxx/0.1 to Installing: project => /usr/share/SimForth/0.1
  • Make shared VPATH and INCLUDES between all Makefiles. Won't do: Use Makefile.common.
  • http://make.mad-scientist.net/papers/how-not-to-use-vpath/ (ok: my VPATH if including BUILD is ok because of generated files stored here. ie version.h)
  • add rules for compiling libraries and pkg-config
  • LDFLAGS vs EXTERNAL_LIBS: when linking order of static lib is important (ie GL vs GLFW)
  • Make the file VERSION be optional (won't do)
  • Add an option for verbosing Makefile
  • Todo INCLUDES += pkg-config --cflags XXX EXTERNAL_LIBS += pkg-config --libs XXX vs. CXXFLAGS += pkg-config XXX LDFLAGS += pkg-config --libs XXX
  • Rethink g++/clang flags
  • misplacement of Makefile.header Makefile.common (not the same for all projects + variables can be hidden like STANDARD = --std=c++14) (WIP)
  • version.sh: Generate BUILD_TYPE in version.h (needed for example by loggers)
  • Missing flags: -Wsign-conversion -Wformat -Wpessimizzing-move

Bugs:

  • !!! Bored of external/backward not always installed ar the root of the project.
  • MYMAKEFILES := depends on Makefile.common but this should be an optional file
  • Fix typo "not" in "You are not replacing recommended CXXFLAGS by your flags"
  • Remove $(P) of THIRDPART ?= $(P)/external => THIRDPART ?= external this fuck up VPATH. !!! IMPORTANT:Ask why on stackoverflow !!!**
  • Auto install backward when building in debug mode:
    $(THIRDPART)/backward-cpp/.git/config:
    mkdir -p $(THIRDPART) && cd $(THIRDPART) && git clone https://github.com/Lecrapouille/backward-cpp.git --depth=1 > /dev/null 2> /dev/null