Revert "Merge pull request #11804 from obsidiansystems/remove-old-make"

This reverts commit 619eeb658a, reversing
changes made to 1af94bf471.

mk/lib.mk

@@ -0,0 +1,159 @@
+default: all
+
+
+# Get rid of default suffixes. FIXME: is this a good idea?
+.SUFFIXES:
+
+
+# Initialise some variables.
+bin-scripts :=
+noinst-scripts :=
+man-pages :=
+install-tests :=
+install-tests-groups :=
+
+include mk/platform.mk
+
+# Hack to define a literal space.
+space :=
+space +=
+
+
+# Hack to define a literal newline.
+define newline
+
+
+endef
+
+
+# Pass -fPIC if we're building dynamic libraries.
+BUILD_SHARED_LIBS ?= 1
+
+ifeq ($(BUILD_SHARED_LIBS), 1)
+  ifdef HOST_CYGWIN
+    GLOBAL_CFLAGS += -U__STRICT_ANSI__ -D_GNU_SOURCE
+    GLOBAL_CXXFLAGS += -U__STRICT_ANSI__ -D_GNU_SOURCE
+  else
+    GLOBAL_CFLAGS += -fPIC
+    GLOBAL_CXXFLAGS += -fPIC
+  endif
+  ifndef HOST_DARWIN
+   ifndef HOST_SOLARIS
+    ifndef HOST_FREEBSD
+     GLOBAL_LDFLAGS += -Wl,--no-copy-dt-needed-entries
+    endif
+   endif
+  endif
+  SET_RPATH_TO_LIBS ?= 1
+endif
+
+# Pass -g if we want debug info.
+BUILD_DEBUG ?= 1
+
+ifeq ($(BUILD_DEBUG), 1)
+  GLOBAL_CFLAGS += -g
+  GLOBAL_CXXFLAGS += -g
+endif
+
+
+include mk/build-dir.mk
+include mk/install-dirs.mk
+include mk/functions.mk
+include mk/tracing.mk
+include mk/clean.mk
+include mk/install.mk
+include mk/libraries.mk
+include mk/programs.mk
+include mk/patterns.mk
+include mk/templates.mk
+include mk/cxx-big-literal.mk
+include mk/tests.mk
+include mk/compilation-database.mk
+
+
+# Include all sub-Makefiles.
+define include-sub-makefile
+  d := $$(patsubst %/,%,$$(dir $(1)))
+  include $(1)
+endef
+
+$(foreach mf, $(makefiles), $(eval $(call include-sub-makefile,$(mf))))
+
+
+# Instantiate stuff.
+$(foreach lib, $(libraries), $(eval $(call build-library,$(lib))))
+$(foreach prog, $(programs), $(eval $(call build-program,$(prog))))
+$(foreach script, $(bin-scripts), $(eval $(call install-program-in,$(script),$(bindir))))
+$(foreach script, $(bin-scripts), $(eval programs-list += $(script)))
+$(foreach script, $(noinst-scripts), $(eval programs-list += $(script)))
+$(foreach template, $(template-files), $(eval $(call instantiate-template,$(template))))
+$(foreach test, $(install-tests), \
+  $(eval $(call run-test,$(test))) \
+  $(eval installcheck: $(test).test))
+$(foreach test-group, $(install-tests-groups), \
+  $(eval $(call run-test-group,$(test-group))) \
+  $(eval installcheck: $(test-group).test-group) \
+  $(foreach test, $($(test-group)-tests), \
+    $(eval $(call run-test,$(test))) \
+    $(eval $(test-group).test-group: $(test).test)))
+
+# Compilation database.
+$(foreach lib, $(libraries), $(eval $(call write-compile-commands,$(lib))))
+$(foreach prog, $(programs), $(eval $(call write-compile-commands,$(prog))))
+
+compile_commands.json: $(compile-commands-json-files)
+	@jq --slurp '.' $^ >$@
+
+# Include makefiles requiring built programs.
+$(foreach mf, $(makefiles-late), $(eval $(call include-sub-makefile,$(mf))))
+
+
+$(foreach file, $(man-pages), $(eval $(call install-data-in, $(file), $(mandir)/man$(patsubst .%,%,$(suffix $(file))))))
+
+
+.PHONY: default all man help
+
+all: $(programs-list) $(libs-list) $(man-pages)
+
+man: $(man-pages)
+
+
+help:
+	@echo "The following targets are available:"
+	@echo ""
+	@echo "  default: Build default targets"
+ifdef man-pages
+	@echo "  man: Generate manual pages"
+endif
+	@$(print-top-help)
+ifdef programs-list
+	@echo ""
+	@echo "The following programs can be built:"
+	@echo ""
+	@for i in $(programs-list); do echo "  $$i"; done
+endif
+ifdef libs-list
+	@echo ""
+	@echo "The following libraries can be built:"
+	@echo ""
+	@for i in $(libs-list); do echo "  $$i"; done
+endif
+ifdef install-tests-groups
+	@echo ""
+	@echo "The following groups of functional tests can be run:"
+	@echo ""
+	@for i in $(install-tests-groups); do echo "  $$i.test-group"; done
+	@echo ""
+	@echo "(installcheck includes tests in test groups too.)"
+endif
+	@echo ""
+	@echo "The following variables control the build:"
+	@echo ""
+	@echo "  BUILD_SHARED_LIBS ($(BUILD_SHARED_LIBS)): Whether to build shared libraries"
+	@echo "  BUILD_DEBUG ($(BUILD_DEBUG)): Whether to include debug symbols"
+	@echo "  CC ($(CC)): C compiler to be used"
+	@echo "  CFLAGS: Flags for the C compiler"
+	@echo "  CXX ($(CXX)): C++ compiler to be used"
+	@echo "  CXXFLAGS: Flags for the C++ compiler"
+	@echo "  CPPFLAGS: C preprocessor flags, used for both CC and CXX"
+	@$(print-var-help)