simplifications

aconvert/makefile

 CC=g++
 EXECUTIBLE=aconvert
-CCFLAGS= -std=c++11 -O2 -c -Wall -I../alib/src 
-LDFLAGS= -L../alib/lib -lxml2 -lalib
+CCFLAGS= -std=c++11 -O2 -c -Wall
+LDFLAGS=
 SOURCES=$(shell find src/ -name *cpp)
 OBJECTS=$(patsubst src/%.cpp, obj/%.o, $(SOURCES))

adiff/makefile

 CC=g++
 EXECUTIBLE=adiff
-CCFLAGS= -std=c++11 -O2 -c -Wall -I../alib/src 
-LDFLAGS= -L../alib/lib -lxml2 -lalib
+CCFLAGS= -std=c++11 -O2 -c -Wall
+LDFLAGS=
 SOURCES=$(shell find src/ -name *cpp)
 OBJECTS=$(patsubst src/%.cpp, obj/%.o, $(SOURCES))

adiff/src/adiff.cpp

@@ -16,6 +16,7 @@
 #define PROGNAME    "%s/adiff.%s"
 #define VERSION     "0.0.1"
+#define USAGE       "adiff [-V] -t difftype [diff-options] input1 input2"
 int main(int argc, char *argv[]) {
 	if (argc == 2 && (!strcmp(argv[1], "-v") || !strcmp(argv[1], "--version"))) {
@@ -46,7 +47,7 @@ int main(int argc, char *argv[]) {
 more:
 	if (optind == argc || difftype == NULL) {
-		fprintf(stderr, "Usage: adiff [-V] -t difftype [diff-options] input1 input2");
+		fprintf(stderr, "Usage: %s\n", USAGE);
 		return EXIT_FAILURE;
 	}