https://bugs.gentoo.org/778899

Author: orbea <orbea@riseup.net>
Date:   Fri Jun 17 17:29:51 2022 -0700

    configure: Add minimal configure.ac for libtool

diff --git a/Makefile b/Makefile.in
similarity index 92%
rename from Makefile
rename to Makefile.in
index 76cfd35..2c05a99 100644
--- a/Makefile
+++ b/Makefile.in
@@ -4,11 +4,9 @@
 config ?= debug
 SYSTEM ?= $(shell uname -s)
 
-ifeq ($(SYSTEM),Darwin)
-  LIBTOOL ?= glibtool
-else
-  LIBTOOL ?= libtool
-endif
+top_builddir = @top_builddir@
+
+LIBTOOL := @LIBTOOL@
 
 ifneq ($(VERBOSE),1)
   LIBTOOL += --quiet
@@ -33,11 +31,11 @@ else
   XCFLAGS += -std=c99
 endif
 
-NAME    := mpack
-MAJOR   := 1
-MINOR   := 0
-PATCH   := 3
-VERSION := $(MAJOR).$(MINOR).$(PATCH)
+NAME    := @PACKAGE_NAME@
+MAJOR   := @MAJOR@
+MINOR   := @MINOR@
+PATCH   := @PATCH@
+VERSION := @PACKAGE_VERSION@
 
 LT_REVISION=0
 LT_CURRENT=0
@@ -130,6 +128,11 @@ clean:
 $(TOBJ): XCFLAGS := $(filter-out $(TEST_FILTER_OUT),$(XCFLAGS)) \
 	-std=gnu99 -Wno-conversion -Wno-unused-parameter
 
+$(OUTDIR)/.tag:
+	@mkdir -p $(OUTDIR)/$(SRCDIR)
+	@mkdir -p $(OUTDIR)/$(TESTDIR)/deps/tap
+	@touch $@
+
 $(COVOUT): $(SRC) $(TSRC)
 	find $(OUTDIR) -type f -name '*.gcda' -print0 | xargs -0 rm -f
 	$(MAKE) CFLAGS='-DNDEBUG -g --coverage' LDFLAGS=--coverage config=$(config) test
@@ -142,7 +145,7 @@ $(PROFOUT): $(SRC) $(TSRC)
 	gprof $(OUTDIR)/run-tests gmon.out > $@
 	rm gmon.out
 
-$(OUTDIR)/%.lo: %.c $(AMALG)
+$(OUTDIR)/%.lo: %.c $(AMALG) $(OUTDIR)/.tag
 	@echo compile $< =\> $@
 	@$(LIBTOOL) --mode=compile --tag=CC $(CC) $(XCFLAGS) $(CFLAGS) -o $@ -c $<
 
diff --git a/configure.ac b/configure.ac
new file mode 100644
index 0000000..d2f02e7
--- /dev/null
+++ b/configure.ac
@@ -0,0 +1,16 @@
+m4_define([MAJOR], [1])
+m4_define([MINOR], [0])
+m4_define([PATCH], [5])
+
+AC_INIT([mpack], [MAJOR.MINOR.PATCH])
+AC_CONFIG_FILES([Makefile])
+
+LT_INIT
+
+AC_SUBST([top_builddir], [$abs_builddir])
+
+AC_SUBST([MAJOR], [MAJOR])
+AC_SUBST([MINOR], [MINOR])
+AC_SUBST([PATCH], [PATCH])
+
+AC_OUTPUT