Question

我在makefile中遇到两个问题，我无法弄明白。因此，一些帮助将不胜感激。

另外，我是linux和makefile的新手。所以，如果有人能指导我了解相关资源，我将不胜感激。

成功运行：如果我可以执行以下操作，我可以成功运行此makefile： A）$gcc -c tsnnls_test_DKU.c B）然后，$make 3）我可以成功调用我的函数。

1）运行不成功但是，如果我在make文件中对以下内容发表评论

# Here is a simple Make Macro.
LINK_TARGET     = tsnnls_test_DKU
OBJS_LOC    = tsnnls_test_DKU.o
tsnnls_test_DKU.o: tsnnls_test_DKU.c
    gcc tsnnls_test_DKU.c

然后，然后执行$make，我收到错误

dkumar@dkumar-Precision-WorkStation-T7500 ~/libtsnnls-2.3.3/tsnnls $ make
gcc tsnnls_test_DKU.c
/tmp/ccvbnByX.o: In function `lsqrwrapper':
tsnnls_test_DKU.c:(.text+0x598): undefined reference to `alloc_lsqr_mem'
tsnnls_test_DKU.c:(.text+0x6a8): undefined reference to `sparse_lsqr_mult'
tsnnls_test_DKU.c:(.text+0x6c7): undefined reference to `lsqr'
tsnnls_test_DKU.c:(.text+0x742): undefined reference to `free_lsqr_mem'
/tmp/ccvbnByX.o: In function `main':
tsnnls_test_DKU.c:(.text+0x9cb): undefined reference to `taucs_construct_sorted_ccs_matrix'
tsnnls_test_DKU.c:(.text+0xb15): undefined reference to `t_snnls_fallback'
tsnnls_test_DKU.c:(.text+0xb66): undefined reference to `t_snnls'
tsnnls_test_DKU.c:(.text+0xc92): undefined reference to `colvector_write_mat'
tsnnls_test_DKU.c:(.text+0xcce): undefined reference to `taucs_ccs_free'
collect2: error: ld returned 1 exit status
make: *** [tsnnls_test_DKU.o] Error 1

2）运行不成功另外，如果我在makefile中注释掉“clean: ..”部分，它只会清理并且在我尝试时不会生成：

A）$gcc -c tsnnls_test_DKU.c B）然后，$make

然后，我得到以下输出：

dkumar@dkumar-Precision-WorkStation-T7500 ~/libtsnnls-2.3.3/tsnnls $ make
rm -f tsnnls_test_DKU   
echo Clean done
Clean done

这是我的makefile

# A sample Makefile

# Here is a simple Make Macro.
LINK_TARGET     = tsnnls_test_DKU
OBJS_LOC    = tsnnls_test_DKU.o
#tsnnls_test_DKU.o: tsnnls_test_DKU.c
#   gcc tsnnls_test_DKU.c

# Here is a Make Macro that uses the backslash to extend to multiple lines.
OBJS =  libtsnnls_la-taucs_malloc.o libtsnnls_la-taucs_ccs_order.o \
    libtsnnls_la-taucs_ccs_ops.o libtsnnls_la-taucs_vec_base.o \
    libtsnnls_la-taucs_complex.o libtsnnls_la-colamd.o \
    libtsnnls_la-amdbar.o libtsnnls_la-amdexa.o \
    libtsnnls_la-amdtru.o libtsnnls_la-genmmd.o \
    libtsnnls_la-taucs_timer.o libtsnnls_la-taucs_sn_llt.o \
    libtsnnls_la-taucs_ccs_base.o libtsnnls_la-tlsqr.o \
    libtsnnls_la-tsnnls.o libtsnnls_la-lsqr.o   \
    $(OBJS_LOC)

REBUILDABLES = $(LINK_TARGET) 


##DK COMMENTED OUT THE CLEANING PART 
#clean : 
#   rm -f $(REBUILDABLES)   
#   echo Clean done

all : $(LINK_TARGET)
    echo All done

#Inclusion of all libraries
RANLIB = ranlib
STATICLIB= /usr/local/lib/taucs_full/lib/linux/libtaucs.a 

tsnnls_test_LDADD = $(LDADD)
LIBS = -largtable2 -llapack -lblas -lquadmath -lm

$(LINK_TARGET) : $(OBJS)   $(tsnnls_test_LDADD) $(LIBS)  $(STATICLIB)
    gcc -g -o $@ $^

Makefile：如果我单独创建目标文件，则运行成功

0 个答案: