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* respect CFLAGS and CXXFLAGS from user
* compile with CC for C and CXX for C++ files
* propagate and respect user's LDFLAGS
* PIC only used for the library
* link the shared version library
nov 2012 - bicatali@gentoo.org
--- a/Makefile.orig 2012-11-29 10:39:07.149421728 -0800
+++ b/Makefile 2012-11-29 10:57:19.727766521 -0800
@@ -1,9 +1,12 @@
CXX ?= g++
-CFLAGS = -Wall -Wconversion -O3 -fPIC
+CC ?= gcc
+CFLAGS ?= -Wall -Wconversion -O3
+CXXFLAGS ?= $(CFLAGS)
SHVER = 2
OS = $(shell uname)
+PICFLAGS ?= -fPIC
-all: svm-train svm-predict svm-scale
+all: svm-train svm-predict svm-scale lib
lib: svm.o
if [ "$(OS)" = "Darwin" ]; then \
@@ -11,15 +14,20 @@
else \
SHARED_LIB_FLAG="-shared -Wl,-soname,libsvm.so.$(SHVER)"; \
fi; \
- $(CXX) $${SHARED_LIB_FLAG} svm.o -o libsvm.so.$(SHVER)
+ $(CXX) $(LDFLAGS) $${SHARED_LIB_FLAG} svm.o -o libsvm.so.$(SHVER) ; \
+ ln -s libsvm.so.$(SHVER) libsvm.so
svm-predict: svm-predict.c svm.o
- $(CXX) $(CFLAGS) svm-predict.c svm.o -o svm-predict -lm
+ $(CC) $(CFLAGS) -c $@.c -o $@.o
+ $(CXX) $(LDFLAGS) $@.o svm.o -lm -o $@
svm-train: svm-train.c svm.o
- $(CXX) $(CFLAGS) svm-train.c svm.o -o svm-train -lm
+ $(CC) $(CFLAGS) -c $@.c -o $@.o
+ $(CXX) $(LDFLAGS) $@.o svm.o -lm -o $@
svm-scale: svm-scale.c
- $(CXX) $(CFLAGS) svm-scale.c -o svm-scale
+ $(CC) $(CFLAGS) -c $@.c -o $@.o
+ $(CXX) $(LDFLAGS) $@.o -o $@
+
svm.o: svm.cpp svm.h
- $(CXX) $(CFLAGS) -c svm.cpp
+ $(CXX) $(CXXFLAGS) $(PICFLAGS) -c svm.cpp -o $@
clean:
- rm -f *~ svm.o svm-train svm-predict svm-scale libsvm.so.$(SHVER)
+ rm -f *~ svm.o svm-train svm-predict svm-scale libsvm.so.$(SHVER) libsvm.so
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