Hi, I downloaded source code of samtools-0.1.18, then compile it by the command line:

make CFLAGS=-fPIC

But this is the error:

gcc -fPIC -o samtools bam_tview.o bam_plcmd.o sam_view.o bam_rmdup.o bam_rmdupse.o bam_mate.o bam_stat.o bam_color.o bamtk.o kaln.o bam2bcf.o bam2bcf_indel.o errmod.o sample.o cut_target.o phase.o bam2depth.o -Lbcftools  libbam.a -lbcf -lcurses  -lm -lz
bam2bcf_indel.o: In function `ks_combsort_uint32_t':
bam2bcf_indel.c:(.text+0x1177): undefined reference to `__ks_insertsort_uint32_t'
bam2bcf_indel.o: In function `ks_introsort_uint32_t':
bam2bcf_indel.c:(.text+0x14f7): undefined reference to `__ks_insertsort_uint32_t'
errmod.o: In function `ks_combsort_uint16_t':
errmod.c:(.text+0x706): undefined reference to `__ks_insertsort_uint16_t'
errmod.o: In function `ks_introsort_uint16_t':
errmod.c:(.text+0xaa3): undefined reference to `__ks_insertsort_uint16_t'
phase.o: In function `ks_combsort_rseq':
phase.c:(.text+0x250f): undefined reference to `__ks_insertsort_rseq'
phase.o: In function `ks_introsort_rseq':
phase.c:(.text+0x2909): undefined reference to `__ks_insertsort_rseq'
libbam.a(bgzf.o): In function `deflate_block':
bgzf.c:(.text+0x14c0): undefined reference to `packInt16'
bgzf.c:(.text+0x1513): undefined reference to `packInt32'
bgzf.c:(.text+0x1531): undefined reference to `packInt32'
libbam.a(bgzf.o): In function `check_header':
bgzf.c:(.text+0x1741): undefined reference to `unpackInt16'
bgzf.c:(.text+0x1788): undefined reference to `unpackInt16'
libbam.a(bgzf.o): In function `bgzf_read_block':
bgzf.c:(.text+0x1c1e): undefined reference to `unpackInt16'
libbam.a(bam_index.o): In function `ks_combsort_off':
bam_index.c:(.text+0x8d9): undefined reference to `__ks_insertsort_off'
libbam.a(bam_index.o): In function `ks_introsort_off':
bam_index.c:(.text+0xcf7): undefined reference to `__ks_insertsort_off'
libbam.a(bam_lpileup.o): In function `ks_combsort_node':
bam_lpileup.c:(.text+0x989): undefined reference to `__ks_insertsort_node'
libbam.a(bam_lpileup.o): In function `ks_introsort_node':
bam_lpileup.c:(.text+0xf61): undefined reference to `__ks_insertsort_node'
libbam.a(bedidx.o): In function `ks_combsort_uint64_t':
bedidx.c:(.text+0x755): undefined reference to `__ks_insertsort_uint64_t'
libbam.a(bedidx.o): In function `ks_introsort_uint64_t':
bedidx.c:(.text+0xb07): undefined reference to `__ks_insertsort_uint64_t'
libbam.a(bam_sort.o): In function `ks_combsort_heap':
bam_sort.c:(.text+0xc58): undefined reference to `__ks_insertsort_heap'
libbam.a(bam_sort.o): In function `ks_introsort_heap':
bam_sort.c:(.text+0x1213): undefined reference to `__ks_insertsort_heap'
libbam.a(bam_sort.o): In function `ks_combsort_sort':
bam_sort.c:(.text+0x331c): undefined reference to `__ks_insertsort_sort'
libbam.a(bam_sort.o): In function `ks_introsort_sort':
bam_sort.c:(.text+0x3710): undefined reference to `__ks_insertsort_sort'
collect2: error: ld returned 1 exit status
make[1]: *** [samtools] Error 1
make[1]: Leaving directory `/wistar/herlynm/jliu/tiantian/download/samtools-0.1.18'
make: *** [all-recur] Error 1

I am using a linux server and gcc version is 6.1.0