Group java-related vars together in make

src/Makefile

@@ -21,6 +21,14 @@ ifndef JAVA_HOME
     $(error JAVA_HOME is not set!)
 endif
 
+JP=$(JAVA_HOME)/bin
+
+# Old versions of a Java distribution have a `javah` binary, new versions do not. This checks whether or not `javah` can be found in the Java distribution found in the directory `$JAVA_HOME`.
+NOT_USED:=$(shell type $(JAVA_HOME)/bin/javah)
+ifeq ($(.SHELLSTATUS),0)
+    OLD_JAVA=placeholder
+endif
+
 LIBRARY=libpEpJNI.a
 JAR=jniadapter.jar
 
@@ -32,10 +40,6 @@ else
     $(error I don't know how to build for $(BUILD_FOR).)
 endif
 
-LDFLAGS=-shared $(ENGINE_LIB) $(AD_LIB)
-
-LDLIBS=-lstdc++ -lpEpEngine
-
 JAVA_SOURCES=org/pEp/jniadapter/pEpException.java \
     org/pEp/jniadapter/AbstractEngine.java \
     org/pEp/jniadapter/Message.java \
@@ -54,14 +58,6 @@ C_SOURCES=org_pEp_jniadapter_Engine.cc \
     throw_pEp_exception.hh \
     org_pEp_jniadapter_AbstractEngine.h
 
-# Old versions of a Java distribution have a `javah` binary, new versions do not. This checks whether or not `javah` can be found in the Java distribution found in the directory `$JAVA_HOME`.
-NOT_USED:=$(shell type $(JAVA_HOME)/bin/javah)
-ifeq ($(.SHELLSTATUS),0)
-    OLD_JAVA=placeholder
-endif
-
-JP=$(JAVA_HOME)/bin
-
 
 .PHONY: all
 all: $(JAR) $(SHARED)

src/Makefile.conf

@@ -16,7 +16,9 @@ BUILD_FOR:=$(shell uname)
 
 
 ######### C and C++ #########
-LDFLAGS=$(AD_INC) $(ENGINE_INC)
+LDFLAGS=-shared $(ENGINE_LIB) $(AD_LIB)
+
+LDLIBS=-lstdc++ -lpEpEngine
 
 
 ######### C++ #########