clone你的源码，编译时遇到这个问题，如何解决

[mazige1997]

make[2]: Entering directory /opt/rt-n56u/trunk/user/shadowsocks-libev' ( if [ -f ./config_done ]; then \ echo "The same configuration."; \ else \ make configure && touch config_done; \ fi ) make[3]: Entering directory/opt/rt-n56u/trunk/user/shadowsocks-libev' ( cd shadowsocks-libev-2.5.5 ; \ ./configure \ --disable-documentation \ --disable-assert \ --disable-ssp \ --with-pcre=/opt/rt-n56u/trunk/user/shadowsocks-libev/prebuilts/pcre-8.39 \ --with-openssl=/opt/rt-n56u/trunk/user/shadowsocks-libev/prebuilts/openssl-1.0.1 \ --host=mipsel-linux \ --build=x86_64-pc-linux-gnu ; \ ) checking for mipsel-linux-gcc... /opt/rt-n56u/toolchain-mipsel/toolchain-3.4.x/bin/mipsel-linux-uclibc-gcc -mips32r2 -march=mips32r2 checking whether the C compiler works... yes checking for C compiler default output file name... a.out checking for suffix of executables... checking whether we are cross compiling... yes checking for suffix of object files... o checking whether we are using the GNU C compiler... yes checking whether /opt/rt-n56u/toolchain-mipsel/toolchain-3.4.x/bin/mipsel-linux-uclibc-gcc -mips32r2 -march=mips32r2 accepts -g... yes checking for /opt/rt-n56u/toolchain-mipsel/toolchain-3.4.x/bin/mipsel-linux-uclibc-gcc -mips32r2 -march=mips32r2 option to accept ISO C89... none needed checking whether /opt/rt-n56u/toolchain-mipsel/toolchain-3.4.x/bin/mipsel-linux-uclibc-gcc -mips32r2 -march=mips32r2 understands -c and -o together... yes checking how to run the C preprocessor... /opt/rt-n56u/toolchain-mipsel/toolchain-3.4.x/bin/mipsel-linux-uclibc-gcc -mips32r2 -march=mips32r2 -E checking for grep that handles long lines and -e... /bin/grep checking for egrep... /bin/grep -E checking for ANSI C header files... yes checking for sys/types.h... yes checking for sys/stat.h... yes checking for stdlib.h... yes checking for string.h... yes checking for memory.h... yes checking for strings.h... yes checking for inttypes.h... yes checking for stdint.h... yes checking for unistd.h... yes checking minix/config.h usability... no checking minix/config.h presence... no checking for minix/config.h... no checking whether it is safe to define EXTENSIONS... yes checking for a BSD-compatible install... /usr/bin/install -c checking whether build environment is sane... yes checking for mipsel-linux-strip... /opt/rt-n56u/toolchain-mipsel/toolchain-3.4.x/bin/mipsel-linux-uclibc-strip checking for a thread-safe mkdir -p... /bin/mkdir -p checking for gawk... gawk checking whether make sets $(MAKE)... yes checking for style of include used by make... GNU checking whether make supports nested variables... yes checking dependency style of /opt/rt-n56u/toolchain-mipsel/toolchain-3.4.x/bin/mipsel-linux-uclibc-gcc -mips32r2 -march=mips32r2... gcc3 checking for mipsel-linux-ar... /opt/rt-n56u/toolchain-mipsel/toolchain-3.4.x/bin/mipsel-linux-uclibc-ar checking the archiver (/opt/rt-n56u/toolchain-mipsel/toolchain-3.4.x/bin/mipsel-linux-uclibc-ar) interface... ar checking whether make supports nested variables... (cached) yes checking whether to enable maintainer-specific portions of Makefiles... no checking build system type... x86_64-pc-linux-gnu checking host system type... mipsel-unknown-linux-gnu checking how to print strings... printf checking for a sed that does not truncate output... /bin/sed checking for fgrep... /bin/grep -F checking for ld used by /opt/rt-n56u/toolchain-mipsel/toolchain-3.4.x/bin/mipsel-linux-uclibc-gcc -mips32r2 -march=mips32r2... /opt/rt-n56u/toolchain-mipsel/toolchain-3.4.x/bin/mipsel-linux-uclibc-ld checking if the linker (/opt/rt-n56u/toolchain-mipsel/toolchain-3.4.x/bin/mipsel-linux-uclibc-ld) is GNU ld... yes checking for BSD- or MS-compatible name lister (nm)... /opt/rt-n56u/toolchain-mipsel/toolchain-3.4.x/bin/mipsel-linux-uclibc-nm checking the name lister (/opt/rt-n56u/toolchain-mipsel/toolchain-3.4.x/bin/mipsel-linux-uclibc-nm) interface... BSD nm checking whether ln -s works... yes checking the maximum length of command line arguments... 3458764513820540925 checking whether the shell understands some XSI constructs... yes checking whether the shell understands "+="... yes checking how to convert x86_64-pc-linux-gnu file names to mipsel-unknown-linux-gnu format... func_convert_file_noop checking how to convert x86_64-pc-linux-gnu file names to toolchain format... func_convert_file_noop checking for /opt/rt-n56u/toolchain-mipsel/toolchain-3.4.x/bin/mipsel-linux-uclibc-ld option to reload object files... -r checking for mipsel-linux-objdump... no checking for objdump... objdump configure: WARNING: using cross tools not prefixed with host triplet checking how to recognize dependent libraries... pass_all checking for mipsel-linux-dlltool... no checking for dlltool... no checking how to associate runtime and link libraries... printf %s\n checking for mipsel-linux-ar... (cached) /opt/rt-n56u/toolchain-mipsel/toolchain-3.4.x/bin/mipsel-linux-uclibc-ar checking for archiver @FILE support... @ checking for mipsel-linux-strip... (cached) /opt/rt-n56u/toolchain-mipsel/toolchain-3.4.x/bin/mipsel-linux-uclibc-strip checking for mipsel-linux-ranlib... /opt/rt-n56u/toolchain-mipsel/toolchain-3.4.x/bin/mipsel-linux-uclibc-ranlib checking command to parse /opt/rt-n56u/toolchain-mipsel/toolchain-3.4.x/bin/mipsel-linux-uclibc-nm output from /opt/rt-n56u/toolchain-mipsel/toolchain-3.4.x/bin/mipsel-linux-uclibc-gcc -mips32r2 -march=mips32r2 object... ok checking for sysroot... no checking for mipsel-linux-mt... no checking for mt... mt checking if mt is a manifest tool... no checking for dlfcn.h... yes checking for objdir... .libs checking if /opt/rt-n56u/toolchain-mipsel/toolchain-3.4.x/bin/mipsel-linux-uclibc-gcc -mips32r2 -march=mips32r2 supports -fno-rtti -fno-exceptions... no checking for /opt/rt-n56u/toolchain-mipsel/toolchain-3.4.x/bin/mipsel-linux-uclibc-gcc -mips32r2 -march=mips32r2 option to produce PIC... -fPIC -DPIC checking if /opt/rt-n56u/toolchain-mipsel/toolchain-3.4.x/bin/mipsel-linux-uclibc-gcc -mips32r2 -march=mips32r2 PIC flag -fPIC -DPIC works... yes checking if /opt/rt-n56u/toolchain-mipsel/toolchain-3.4.x/bin/mipsel-linux-uclibc-gcc -mips32r2 -march=mips32r2 static flag -static works... yes checking if /opt/rt-n56u/toolchain-mipsel/toolchain-3.4.x/bin/mipsel-linux-uclibc-gcc -mips32r2 -march=mips32r2 supports -c -o file.o... yes checking if /opt/rt-n56u/toolchain-mipsel/toolchain-3.4.x/bin/mipsel-linux-uclibc-gcc -mips32r2 -march=mips32r2 supports -c -o file.o... (cached) yes checking whether the /opt/rt-n56u/toolchain-mipsel/toolchain-3.4.x/bin/mipsel-linux-uclibc-gcc -mips32r2 -march=mips32r2 linker (/opt/rt-n56u/toolchain-mipsel/toolchain-3.4.x/bin/mipsel-linux-uclibc-ld) supports shared libraries... yes checking dynamic linker characteristics... GNU/Linux ld.so checking how to hardcode library paths into programs... immediate checking for shl_load... no checking for shl_load in -ldld... no checking for dlopen... no checking for dlopen in -ldl... yes checking whether a program can dlopen itself... cross checking whether stripping libraries is possible... yes checking if libtool supports shared libraries... yes checking whether to build shared libraries... no checking whether to build static libraries... yes checking checking for pcre includes in /opt/rt-n56u/trunk/user/shadowsocks-libev/prebuilts/pcre-8.39... checking for pcre headers in /opt/rt-n56u/trunk/user/shadowsocks-libev/prebuilts/pcre-8.39/include... not found configure: adding /opt/rt-n56u/trunk/user/shadowsocks-libev/prebuilts/pcre-8.39/lib to RPATH checking for library containing pcre_exec... no configure: error: Cannot find pcre library. Configure --with-pcre=DIR make[3]: [configure] Error 1 make[3]: Leaving directory `/opt/rt-n56u/trunk/user/shadowsocks-libev' make[2]: [config_test] Error 2 make[2]: Leaving directory /opt/rt-n56u/trunk/user/shadowsocks-libev' make[1]: *** [all] Error 2 make[1]: Leaving directory/opt/rt-n56u/trunk/user' make: *** [user_only] Error 2

[pexcn]

缺少 pcre 库

[pexcn]

https://github.com/openwrt-dev/padavan/tree/master/trunk/user/shadowsocks-libev/prebuilts/pcre-8.39 https://github.com/openwrt-dev/padavan/blob/master/trunk/user/shadowsocks-libev/Makefile#L21-L22

[mazige1997]

Thanks very much

[pexcn]

Try last commit. @2812015651