gentoo-overlay/dev-libs/libntru/files/04-libntru-0.2-respect-flags.patch

From: Julian Ospald <hasufell@gentoo.org>
Date: Wed Apr 16 14:48:00 UTC 2014
Subject: respect system flags

--- libntru-0.2/Makefile
+++ libntru-0.2/Makefile
@@ -1,12 +1,16 @@
 CC?=gcc
-CFLAGS=-g -Wall -Wextra -Wno-unused-parameter -O2
-LDFLAGS=-lrt
+CFLAGS?=-g -O2
+CFLAGS+=-Wall -Wextra -Wno-unused-parameter
+LIBS+=-lrt
 SRCDIR=src
 TESTDIR=tests
 LIB_OBJS=bitstring.o encparams.o hash.o idxgen.o key.o mgf.o ntru.o poly.o rand.o sha1.o sha2.o
 TEST_OBJS=test_bitstring.o test_hash.o test_idxgen.o test_key.o test_ntru.o test.o test_poly.o test_util.o
 VERSION=0.2
 INST_PFX=/usr
+INST_LIBDIR=$(INST_PFX)/lib
+INST_INCLUDE=$(INST_PFX)/include/libntru
+INST_DOCDIR=$(INST_PFX)/share/doc/libntru
 INST_HEADERS=ntru.h types.h key.h encparams.h hash.h rand.h err.h
 
 LIB_OBJS_PATHS=$(patsubst %,$(SRCDIR)/%,$(LIB_OBJS))
@@ -18,29 +22,29 @@
 
 .PHONY: lib
 lib: $(LIB_OBJS_PATHS)
-	$(CC) $(CFLAGS) -shared -Wl,-soname,libntru.so -o libntru.so $(LIB_OBJS_PATHS) $(LDFLAGS)
+	$(CC) $(CFLAGS) $(CPPFLAGS) -shared -Wl,-soname,libntru.so -o libntru.so $(LIB_OBJS_PATHS) $(LDFLAGS) $(LIBS)
 
 .PHONY: install
 install: lib
-	test -d $(INST_PFX) || mkdir -p $(INST_PFX)
-	test -d $(INST_PFX)/lib || mkdir $(INST_PFX)/lib
-	test -d $(INST_PFX)/include/libntru || mkdir -p $(INST_PFX)/include/libntru
-	test -d $(INST_PFX)/share/doc/libntru || mkdir -p $(INST_PFX)/share/doc/libntru
-	install -m 0755 libntru.so $(INST_PFX)/lib/libntru.so
-	install -m 0644 README.md $(INST_PFX)/share/doc/libntru/README.md
-	for header in $(INST_HEADERS); do \
-	    install -m 0644 $(SRCDIR)/$$header $(INST_PFX)/include/libntru/; \
+	test -d "$(DESTDIR)$(INST_PFX)" || mkdir -p "$(DESTDIR)$(INST_PFX)"
+	test -d "$(DESTDIR)$(INST_LIBDIR)" || mkdir "$(DESTDIR)$(INST_LIBDIR)"
+	test -d "$(DESTDIR)$(INST_INCLUDE)" || mkdir -p "$(DESTDIR)$(INST_INCLUDE)"
+	test -d "$(DESTDIR)$(INST_DOCDIR)" || mkdir -p "$(DESTDIR)$(INST_DOCDIR)"
+	install -m 0755 libntru.so "$(DESTDIR)$(INST_LIBDIR)/libntru.so"
+	install -m 0644 README.md "$(DESTDIR)$(INST_DOCDIR)/README.md"
+	for header in $(INST_HEADERS) ; do \
+	    install -m 0644 "$(SRCDIR)/$$header" "$(DESTDIR)$(INST_INCLUDE)/" ; \
 	done
 
 .PHONY: uninstall
 uninstall:
-	rm -f $(INST_PFX)/lib/libntru.so
-	rm -f $(INST_PFX)/share/doc/libntru/README.md
-	rmdir $(INST_PFX)/share/doc/libntru/
-	for header in $(INST_HEADERS); do \
-	    rm $(INST_PFX)/include/libntru/$$header; \
+	rm -f "$(DESTDIR)$(INST_LIBDIR)/libntru.so"
+	rm -f "$(DESTDIR)$(INST_DOCDIR)/README.md"
+	rmdir "$(DESTDIR)$(INST_DOCDIR)/"
+	for header in $(INST_HEADERS) ; do \
+	    rm "$(DESTDIR)$(INST_INCLUDE)/$$header" ; \
 	done
-	rmdir $(INST_PFX)/include/libntru/
+	rmdir "$(DESTDIR)$(INST_INCLUDE)/"
 
 .PHONY: dist
 dist:
@@ -57,17 +61,17 @@
 	rm -rf $(DIST_NAME)
 
 test: lib $(TEST_OBJS_PATHS)
-	$(CC) $(CFLAGS) -o test $(TEST_OBJS_PATHS) -L. -lntru -lm
+	$(CC) $(CFLAGS) $(CPPFLAGS) -o test $(TEST_OBJS_PATHS) $(LDFLAGS) -L. -lntru -lm
 	LD_LIBRARY_PATH=. ./test
 
 bench: lib $(SRCDIR)/bench.o
-	$(CC) $(CFLAGS) -o bench $(SRCDIR)/bench.o -L. -lntru
+	$(CC) $(CFLAGS) $(CPPFLAGS) -o bench $(SRCDIR)/bench.o $(LDFLAGS) -L. -lntru
 
 $(SRCDIR)/%.o: $(SRCDIR)/%.c
-	$(CC) $(CFLAGS) -c -fPIC $< -o $@
+	$(CC) $(CFLAGS) $(CPPFLAGS) -c -fPIC $< -o $@
 
 tests/%.o: tests/%.c
-	$(CC) $(CFLAGS) -fPIC -I$(SRCDIR) -c $< -o $@
+	$(CC) $(CFLAGS) $(CPPFLAGS) -fPIC -I$(SRCDIR) -c $< -o $@
 
 .PHONY: clean
 clean: