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a91680a505
We need to pass -fPIC when compiling too, otherwise w/o LTO, we fail to link. Closes: https://bugs.gentoo.org/972427 Signed-off-by: Sam James <sam@gentoo.org>
48 lines
1.5 KiB
Diff
48 lines
1.5 KiB
Diff
diff --git a/Makefile b/Makefile
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index 1bc5d4e..4d55228 100644
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--- a/Makefile
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+++ b/Makefile
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@@ -1,28 +1,33 @@
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CXX ?= g++
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-CFLAGS = -Wall -Wconversion -O3 -fPIC
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+CFLAGS ?= -Wall -Wconversion
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+CXXFLAGS ?= $(CFLAGS)
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+CFLAGS += -fPIC
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+CXXFLAGS += -fPIC
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+
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SHVER = 4
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OS = $(shell uname)
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ifeq ($(OS),Darwin)
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- SHARED_LIB_FLAG = -dynamiclib -Wl,-install_name,libsvm.so.$(SHVER)
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+ SHARED_LIB_FLAG = -dynamiclib -Wl,-install_name,libsvm.so.$(SHVER) -fPIC
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else
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- SHARED_LIB_FLAG = -shared -Wl,-soname,libsvm.so.$(SHVER)
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+ SHARED_LIB_FLAG = -shared -Wl,-soname,libsvm.so.$(SHVER) -fPIC
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endif
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# Uncomment the following lines to enable parallelization with OpenMP
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# CFLAGS += -fopenmp
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# SHARED_LIB_FLAG += -fopenmp
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-all: svm-train svm-predict svm-scale
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+all: svm-train svm-predict svm-scale lib
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lib: svm.o
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- $(CXX) $(SHARED_LIB_FLAG) svm.o -o libsvm.so.$(SHVER)
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+ $(CXX) $(LDFLAGS) $(SHARED_LIB_FLAG) svm.o -o libsvm.so.$(SHVER)
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+ ln -s libsvm.so.$(SHVER) libsvm.so
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svm-predict: svm-predict.c svm.o
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- $(CXX) $(CFLAGS) svm-predict.c svm.o -o svm-predict -lm
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+ $(CXX) $(CFLAGS) $(LDFLAGS) svm-predict.c svm.o -o svm-predict -lm
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svm-train: svm-train.c svm.o
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- $(CXX) $(CFLAGS) svm-train.c svm.o -o svm-train -lm
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+ $(CXX) $(CFLAGS) $(LDFLAGS) svm-train.c svm.o -o svm-train -lm
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svm-scale: svm-scale.c
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- $(CXX) $(CFLAGS) svm-scale.c -o svm-scale
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+ $(CXX) $(CFLAGS) $(LDFLAGS) svm-scale.c -o svm-scale
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svm.o: svm.cpp svm.h
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- $(CXX) $(CFLAGS) -c svm.cpp
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+ $(CXX) $(CXXFLAGS) -c svm.cpp
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clean:
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rm -f *~ svm.o svm-train svm-predict svm-scale libsvm.so.$(SHVER)
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