libtracefs: Add meson build targets to Makefile
Add make targets for building with meson:
make meson
make meson_install
make meson_docs
Link: https://lore.kernel.org/linux-trace-devel/20240724134748.52c18018@gandalf.local.home
Cc: Daniel Wagner <wagi@monom.org>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
diff --git a/Makefile b/Makefile
index 7f4f5c3..b0553c3 100644
--- a/Makefile
+++ b/Makefile
@@ -400,7 +400,7 @@
samples: libtracefs.a force
$(Q)$(call descend,$(src)/samples,all)
-clean:
+clean: clean_meson
$(Q)$(call descend_clean,utest)
$(Q)$(call descend_clean,src)
$(Q)$(call descend_clean,samples)
@@ -410,6 +410,19 @@
$(VERSION_FILE) \
$(BUILD_PREFIX))
+meson:
+ $(MAKE) -f Makefile.meson
+
+meson_install:
+ $(MAKE) -f Makefile.meson install
+
+meson_docs:
+ $(MAKE) -f Makefile.meson docs
+
+PHONY += clean_meson
+clean_meson:
+ $(Q)$(MAKE) -f Makefile.meson $@
+
.PHONY: clean
# libtracefs.a and libtracefs.so would concurrently enter the same directory -
diff --git a/Makefile.meson b/Makefile.meson
new file mode 100644
index 0000000..71d6bf3
--- /dev/null
+++ b/Makefile.meson
@@ -0,0 +1,40 @@
+# SPDX-License-Identifier: GPL-2.0
+
+undefine CFLAGS
+
+# Makefiles suck: This macro sets a default value of $(2) for the
+# variable named by $(1), unless the variable has been set by
+# environment or command line. This is necessary for CC and AR
+# because make sets default values, so the simpler ?= approach
+# won't work as expected.
+define allow-override
+ $(if $(or $(findstring environment,$(origin $(1))),\
+ $(findstring command line,$(origin $(1)))),,\
+ $(eval $(1) = $(2)))
+endef
+
+$(call allow-override,MESON,meson)
+$(call allow-override,MESON_BUILD_DIR,build)
+
+
+all: compile
+
+PHONY += compile
+compile: $(MESON_BUILD_DIR) force
+ $(MESON) compile -C $(MESON_BUILD_DIR)
+
+$(MESON_BUILD_DIR):
+ $(MESON) setup --prefix=$(prefix) $(MESON_BUILD_DIR)
+
+install: compile
+ $(MESON) install -C $(MESON_BUILD_DIR)
+
+docs: $(MESON_BUILD_DIR)
+ $(MESON) compile -C build docs
+
+PHONY += clean_meson
+clean_meson:
+ $(Q)$(RM) -rf $(MESON_BUILD_DIR)
+
+PHONY += force
+force:
