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今天编译centos8内核linux-4.18.0-80.el8时出现错误如下:
[root@localhost linux-4.18.0-80.el8]# make HOSTCC scripts/kconfig/conf.o HOSTLD scripts/kconfig/confscripts/kconfig/conf --syncconfig Kconfig SYSTBL arch/x86/include/generated/asm/syscalls_32.h SYSHDR arch/x86/include/generated/asm/unistd_32_ia32.h SYSHDR arch/x86/include/generated/asm/unistd_64_x32.h SYSTBL arch/x86/include/generated/asm/syscalls_64.h HYPERCALLS arch/x86/include/generated/asm/xen-hypercalls.h SYSHDR arch/x86/include/generated/uapi/asm/unistd_32.h SYSHDR arch/x86/include/generated/uapi/asm/unistd_64.h SYSHDR arch/x86/include/generated/uapi/asm/unistd_x32.h HOSTCC scripts/basic/bin2c HOSTCC arch/x86/tools/relocs_32.o HOSTCC arch/x86/tools/relocs_64.o HOSTCC arch/x86/tools/relocs_common.o HOSTLD arch/x86/tools/relocs UPD include/config/kernel.release WRAP arch/x86/include/generated/uapi/asm/bpf_perf_event.h WRAP arch/x86/include/generated/uapi/asm/poll.h WRAP arch/x86/include/generated/asm/dma-contiguous.h WRAP arch/x86/include/generated/asm/early_ioremap.h WRAP arch/x86/include/generated/asm/mcs_spinlock.h WRAP arch/x86/include/generated/asm/mm-arch-hooks.h UPD include/generated/uapi/linux/version.h UPD include/generated/utsrelease.h CC kernel/bounds.s UPD include/generated/bounds.h UPD include/generated/timeconst.h CC arch/x86/kernel/asm-offsets.s UPD include/generated/asm-offsets.h CALL scripts/checksyscalls.sh DESCEND objtool HOSTCC /root/linux-4.18.0-80.el8/tools/objtool/fixdep.o HOSTLD /root/linux-4.18.0-80.el8/tools/objtool/fixdep-in.o LINK /root/linux-4.18.0-80.el8/tools/objtool/fixdep CC /root/linux-4.18.0-80.el8/tools/objtool/exec-cmd.o CC /root/linux-4.18.0-80.el8/tools/objtool/help.o CC /root/linux-4.18.0-80.el8/tools/objtool/pager.o CC /root/linux-4.18.0-80.el8/tools/objtool/parse-options.o CC /root/linux-4.18.0-80.el8/tools/objtool/run-command.o CC /root/linux-4.18.0-80.el8/tools/objtool/sigchain.o CC /root/linux-4.18.0-80.el8/tools/objtool/subcmd-config.o LD /root/linux-4.18.0-80.el8/tools/objtool/libsubcmd-in.o AR /root/linux-4.18.0-80.el8/tools/objtool/libsubcmd.a GEN /root/linux-4.18.0-80.el8/tools/objtool/arch/x86/lib/inat-tables.c CC /root/linux-4.18.0-80.el8/tools/objtool/arch/x86/decode.o LD /root/linux-4.18.0-80.el8/tools/objtool/arch/x86/objtool-in.o CC /root/linux-4.18.0-80.el8/tools/objtool/builtin-check.o CC /root/linux-4.18.0-80.el8/tools/objtool/builtin-orc.o CC /root/linux-4.18.0-80.el8/tools/objtool/check.o CC /root/linux-4.18.0-80.el8/tools/objtool/orc_gen.o CC /root/linux-4.18.0-80.el8/tools/objtool/orc_dump.o CC /root/linux-4.18.0-80.el8/tools/objtool/elf.o CC /root/linux-4.18.0-80.el8/tools/objtool/special.o CC /root/linux-4.18.0-80.el8/tools/objtool/objtool.o CC /root/linux-4.18.0-80.el8/tools/objtool/libstring.o CC /root/linux-4.18.0-80.el8/tools/objtool/str_error_r.o LD /root/linux-4.18.0-80.el8/tools/objtool/objtool-in.o LINK /root/linux-4.18.0-80.el8/tools/objtool/objtool HOSTCC scripts/genksyms/genksyms.o YACC scripts/genksyms/parse.tab.c HOSTCC scripts/genksyms/parse.tab.o LEX scripts/genksyms/lex.lex.c YACC scripts/genksyms/parse.tab.h HOSTCC scripts/genksyms/lex.lex.o HOSTLD scripts/genksyms/genksyms CC scripts/mod/empty.o HOSTCC scripts/mod/mk_elfconfig MKELF scripts/mod/elfconfig.h HOSTCC scripts/mod/modpost.o CC scripts/mod/devicetable-offsets.s UPD scripts/mod/devicetable-offsets.h HOSTCC scripts/mod/file2alias.o HOSTCC scripts/mod/sumversion.o HOSTLD scripts/mod/modpost HOSTCC scripts/selinux/genheaders/genheaders HOSTCC scripts/selinux/mdp/mdp HOSTCC scripts/kallsyms HOSTCC scripts/pnmtologo HOSTCC scripts/conmakehash HOSTCC scripts/recordmcount HOSTCC scripts/sortextable HOSTCC scripts/asn1_compiler HOSTCC scripts/sign-filescripts/sign-file.c:25:10: fatal error: openssl/opensslv.h: No such file or directory #include^~~~~~~~~~~~~~~~~~~~compilation terminated.make[1]: *** [scripts/Makefile.host:90: scripts/sign-file] Error 1make: *** [Makefile:1067: scripts] Error 2
很明显系统中缺失了一个头文件，这是一个库文件。
解决办法:
To install OpenSSL development package on **Debian, Ubuntu** or their derivatives:$ sudo apt-get install libssl-devTo install OpenSSL development package on Fedora, **CentOS** or RHEL:$ sudo yum install openssl-devel
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