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From: Marc Kleine-Budde <mkl@pengutronixd.de>
Date: Wed, 2 May 2012 13:21:27 +0200
Subject: [PATCH] Makefile: add possibility to cross compile

Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
---
 Makefile |   21 +++++++++++++--------
 1 files changed, 13 insertions(+), 8 deletions(-)

diff --git a/Makefile b/Makefile
index ad782bb..080aa23 100644
--- a/Makefile
+++ b/Makefile
@@ -1,21 +1,26 @@
-CFLAGS=-g -Wall
-CC=gcc
+CFLAGS+=-g -O2 -Wall
 AR=ar
 RANLIB=ranlib
 LIBS=-L./ -lcgic
+PREFIX=/usr/local
 
-all: libcgic.a cgictest.cgi capture
+all: libcgic.a libcgic.so.2.05
 
 install: libcgic.a
-	cp libcgic.a /usr/local/lib
-	cp cgic.h /usr/local/include
-	@echo libcgic.a is in /usr/local/lib. cgic.h is in /usr/local/include.
+	cp libcgic.a libcgic.so.2.05 $(DESTDIR)$(PREFIX)/lib
+	cp cgic.h $(DESTDIR)$(PREFIX)/include
+	@echo libcgic.a is in $(PREFIX)/lib. cgic.h is in $(PREFIX)/include.
 
-libcgic.a: cgic.o cgic.h
+libcgic.a: cgic.c cgic.h
 	rm -f libcgic.a
+	$(CC) $(CFLAGS) -D_REENTRANT -pipe -c cgic.c -o cgic.o
 	$(AR) rc libcgic.a cgic.o
 	$(RANLIB) libcgic.a
 
+libcgic.so.2.05: cgic.c cgic.h
+	$(CC) $(CFLAGS) -D_REENTRANT -fPIC -pipe -c cgic.c -o cgic.o
+	$(CC) -shared -Wl,-soname,libcgic.so.2 -o libcgic.so.2.05 cgic.o -lc
+
 #mingw32 and cygwin users: replace .cgi with .exe
 
 cgictest.cgi: cgictest.o libcgic.a
@@ -25,5 +30,5 @@ capture: capture.o libcgic.a
 	gcc capture.o -o capture ${LIBS}
 
 clean:
-	rm -f *.o *.a cgictest.cgi capture
+	rm -f *.o *.a *.so.* cgictest.cgi capture