compile error with -lchimera

build and install with pcre-8.41，make install info:
`[root@825fdc02e7ed build]# make install
[ 1%] Built target hs_exec_common
[ 7%] Built target hs_exec_corei7
[ 13%] Built target hs_exec_core2
[ 19%] Built target hs_exec_avx2
[ 42%] Built target hs_compile
[ 42%] Built target ragel_Parser
[ 42%] Built target hs
[ 66%] Built target hs_compile_shared
[ 67%] Built target hs_exec_common_shared
[ 73%] Built target hs_exec_shared_avx2
[ 79%] Built target hs_exec_shared_core2
[ 85%] Built target hs_exec_shared_corei7
[ 85%] Built target hs_runtime
[ 85%] Built target hs_runtime_shared
[ 85%] Built target hs_shared
[ 86%] Built target corpusomatic
[ 86%] Built target crosscompileutil
[ 86%] Built target databaseutil
[ 86%] Built target ragel_ExpressionParser
[ 87%] Built target expressionutil
[ 90%] Built target pcre
[ 90%] Built target chimera
[ 91%] Built target unit-chimera
[ 94%] Built target unit-hyperscan
[ 94%] Built target hscheck
[ 94%] Built target ragel_ColliderCorporaParser
[ 96%] Built target hscollider
[ 98%] Built target hsbench
[ 98%] Built target patbench
[ 98%] Built target pcapscan
[100%] Built target simplegrep
Install the project...
-- Install configuration: "RELWITHDEBINFO"
-- Installing: /usr/local/lib64/pkgconfig/libhs.pc
-- Up-to-date: /usr/local/include/hs/hs.h
-- Up-to-date: /usr/local/include/hs/hs_common.h
-- Up-to-date: /usr/local/include/hs/hs_compile.h
-- Up-to-date: /usr/local/include/hs/hs_runtime.h
-- Installing: /usr/local/lib64/libhs_runtime.a
-- Installing: /usr/local/lib64/libhs_runtime.so.5.2.1
-- Installing: /usr/local/lib64/libhs_runtime.so.5
-- Installing: /usr/local/lib64/libhs_runtime.so
-- Installing: /usr/local/lib64/libhs.a
-- Installing: /usr/local/lib64/libhs.so.5.2.1
-- Installing: /usr/local/lib64/libhs.so.5
-- Installing: /usr/local/lib64/libhs.so
-- Up-to-date: /usr/local/include/hs/ch.h
-- Up-to-date: /usr/local/include/hs/ch_common.h
-- Up-to-date: /usr/local/include/hs/ch_compile.h
-- Up-to-date: /usr/local/include/hs/ch_runtime.h
-- Installing: /usr/local/lib64/libchimera.a
-- Installing: /usr/local/lib64/pkgconfig/libch.pc
-- Up-to-date: /usr/local/share/doc/hyperscan/examples/simplegrep.c
-- Up-to-date: /usr/local/share/doc/hyperscan/examples/pcapscan.cc
-- Up-to-date: /usr/local/share/doc/hyperscan/examples/patbench.cc
-- Up-to-date: /usr/local/share/doc/hyperscan/examples/README.md
`

but compile one code whith -lhs -lchimera -lstdc++ -lm
`[root@825fdc02e7ed ~]# gcc -g -O0 simplegrep_bychim.c -o simplegrep_bychim -I/usr/local/include/hs -lhs -lstdc++ -lchimera -lm
/usr/local/lib64/libchimera.a(ch_compile.cpp.o): In function `~PatternData':
/home/yujie_ng_nbs_proj/modules/suricata/src/hyperscan-5.2.1/chimera/ch_compile.cpp:244: undefined reference to `pcre_free'
/home/yujie_ng_nbs_proj/modules/suricata/src/hyperscan-5.2.1/chimera/ch_compile.cpp:245: undefined reference to `pcre_free'
/usr/local/lib64/libchimera.a(ch_compile.cpp.o): In function `buildPcre':
/home/yujie_ng_nbs_proj/modules/suricata/src/hyperscan-5.2.1/chimera/ch_compile.cpp:340: undefined reference to `pcre_compile'
/home/yujie_ng_nbs_proj/modules/suricata/src/hyperscan-5.2.1/chimera/ch_compile.cpp:349: undefined reference to `pcre_study'
/home/yujie_ng_nbs_proj/modules/suricata/src/hyperscan-5.2.1/chimera/ch_compile.cpp:360: undefined reference to `pcre_fullinfo'
/home/yujie_ng_nbs_proj/modules/suricata/src/hyperscan-5.2.1/chimera/ch_compile.cpp:367: undefined reference to `pcre_fullinfo'
/home/yujie_ng_nbs_proj/modules/suricata/src/hyperscan-5.2.1/chimera/ch_compile.cpp:372: undefined reference to `pcre_fullinfo'
/home/yujie_ng_nbs_proj/modules/suricata/src/hyperscan-5.2.1/chimera/ch_compile.cpp:380: undefined reference to `pcre_fullinfo'
/usr/local/lib64/libchimera.a(ch_compile.cpp.o): In function `~PatternData':`

compile success with:
`gcc -g -O0 simplegrep_bychim.c -o simplegrep_bychim -I/usr/local/include/hs ../hyperscan-5.2.1/build/lib/libchimera.a ../hyperscan-5.2.1/build/lib/libhs.a ../hyperscan-5.2.1/build/lib/libpcre.a -lm -lstdc++`

why not use the -lhs and -lchimera to compile?