fix: 'make dist' without javah

[lttng-ust.git] / src / lib / lttng-ust-java / Makefile.am

# SPDX-License-Identifier: LGPL-2.1-only

JAVAROOT = .build
jarfile = liblttng-ust-java.jar
jardir = $(datadir)/java
pkgpath = org/lttng/ust

dist_noinst_JAVA = $(pkgpath)/LTTngUst.java
jar_DATA = $(jarfile)

AM_CPPFLAGS += -I$(builddir) -I$(srcdir) $(JNI_CPPFLAGS)

lib_LTLIBRARIES = liblttng-ust-java.la
liblttng_ust_java_la_SOURCES = LTTngUst.c lttng_ust_java.h

# Generated by javac / javah
nodist_liblttng_ust_java_la_SOURCES = org_lttng_ust_LTTngUst.h

# Explicit dependency to ensure the header is generated before the
# C file is built.
LTTngUst.lo: org_lttng_ust_LTTngUst.h

liblttng_ust_java_la_LIBADD = -lc \
	$(top_builddir)/src/lib/lttng-ust/liblttng-ust.la

$(jarfile): classnoinst.stamp
	$(JAR) cf $(JARFLAGS) $@ -C $(JAVAROOT) $(pkgpath)/LTTngUst.class

# Ensure the javaroot directory is created before the Java class files are built.
$(pkgpath)/LTTngUst.java: $(JAVAROOT)
$(JAVAROOT):
	-test -d $(JAVAROOT) || mkdir $(JAVAROOT)

if !HAVE_JAVAH
# If we don't have javah, assume we are running openjdk >= 10 and use javac
# to generate the jni header file.
AM_JAVACFLAGS = -h .

# The header file will be generated by javac when building the Java class
# files, add a dependency on the stamp file to ensure proper ordering.
org_lttng_ust_LTTngUst.h: classnoinst.stamp
else
org_lttng_ust_LTTngUst.h:
	$(JAVAH) -classpath $(srcdir) $(JAVAHFLAGS) org.lttng.ust.LTTngUst
endif

EXTRA_DIST = README

CLEANFILES = $(jarfile) org_lttng_ust_LTTngUst.h

clean-local:
	-rm -rf $(JAVAROOT)