编译crosstool-ng

从3.1.0开始，udns换成了libc-ares

fedora 26上试验编译crosstool-ng 1.21.0

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  In file included from zconf.tab.c:213:0: zconf.hash.c:170:1: error: conflicting types for ‘kconf_id_lookup’  kconf_id_lookup (register const char *str, register size_t len)  ^~~~~~~~~~~~~~~ zconf.hash.c:41:25: note: previous declaration of ‘kconf_id_lookup’ was here  static struct kconf_id *kconf_id_lookup(register const char *str, register unsigned int len);                          ^~~~~~~~~~~~~~~ make[2]: *** [Makefile:96: zconf.tab.o] Error 1 make[1]: *** [Makefile:166: build-lib-kconfig] Error 2 make: *** [Makefile:126: build] Error 2

  这是由于gperf太新导致，需要3.0.4,所以最好还是在docker镜像或者虚拟机里搞好,或者脑残法，直接装个旧版
  

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  wget https://ftp.gnu.org/pub/gnu/gperf/gperf-3.0.4.tar.gz tar xvf gperf-3.0.4 cd gperf-3.0.4 ./configure --prefix=/usr make make install

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  INFO ]  Performing some trivial sanity checks [INFO ]  Build started 20170924.112011 [INFO ]  Building environment variables [ERROR]    collect2: error: ld returned 1 exit status [ERROR]   [ERROR]  >> [ERROR]  >>  Build failed in step 'Checking that gcc can compile a trivial statically linked program (CT_WANTS_STATIC_LINK)' [ERROR]  >>        called in step '(top-level)' [ERROR]  >> [ERROR]  >>  Error happened in: CT_DoExecLog[scripts/functions@257] [ERROR]  >>        called from: main[scripts/crosstool-NG.sh@546] [ERROR]  >> [ERROR]  >>  For more info on this error, look at the file: 'build.log' [ERROR]  >>  There is a list of known issues, some with workarounds, in: [ERROR]  >>      '/usr/local/share/doc/crosstool-ng/ct-ng.1.21.0/B - Known issues.txt' [ERROR]   [ERROR]  (elapsed: 0:01.23) [00:01] / gmake[1]: *** [/usr/local/bin/ct-ng:147: build] Error 1 gmake: *** [/usr/local/bin/ct-ng:150: build.4] Error 2

  装
  

  1 2	dnf groupinstall "Development Tools" dnf install glibc-devel glibc-static libstdc++-static

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  [INFO ]  Installing final compiler [ERROR]    cfns.gperf:101:1: error: 'const char* libc_name_p(const char*, unsigned int)' redeclared inline with 'gnu_inline' attribute [ERROR]    gmake[4]: *** [Makefile:1058: cp/except.o] Error 1 [ERROR]    gmake[3]: *** [Makefile:4118: all-gcc] Error 2 [ERROR]    gmake[2]: *** [Makefile:874: all] Error 2 [ERROR]   [ERROR]  >> [ERROR]  >>  Build failed in step 'Installing final compiler' [ERROR]  >>        called in step '(top-level)'

  这是因为gcc6以上编译旧版gcc 5.1.0,需要上游的patch, 虽然crosstool-ng有在新版本中带这个patch，可是需要的老版本的uclibc又没有了，所以还不如不要在自己系统里编译，用docker开个旧版系统应该方便些
  update 10/14/2017: lz试了下gcc 5.5.0,似乎不会出错，只需要改一下ctng.config文件里的gcc版本号即可，见这里

fedora 25 on docker

官方镜像里有25

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sudo docker run -it --name fedora  docker.io/fedora:25 /bin/bash dnf groupinstall "Development Tools" dnf install automake gperf bison flex texinfo wget bzip2 libtool ncurses-devel   git clone https://github.com/crosstool-ng/crosstool-ng.git cd crosstool-ng git checkout tags/crosstool-ng-1.21.0 ./bootstrap ./configure

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# make   GEN    'config/configure.in'   GEN    'paths.mk'   GEN    'paths.sh'   CC     'zconf.tab.o' zconf.tab.c: In function 'zconfparse': zconf.tab.c:1508:42: error: 'kconf_id_strings' undeclared (first use in this function)   zconf_error("unexpected option \"%s\"", kconf_id_strings + (yyvsp[-2].id)->name);                                           ^~~~~~~~~~~~~~~~ zconf.tab.c:1508:42: note: each undeclared identifier is reported only once for each function it appears in zconf.tab.c:1629:24: warning: implicit declaration of function 'kconf_id_lookup' [-Wimplicit-function-declaration]   struct kconf_id *id = kconf_id_lookup((yyvsp[-1].string), strlen((yyvsp[-1].string)));                         ^~~~~~~~~~~~~~~ zconf.tab.c:1629:24: warning: initialization makes pointer from integer without a cast [-Wint-conversion] zconf.tab.c: In function 'zconf_endtoken': zconf.tab.c:2237:4: error: 'kconf_id_strings' undeclared (first use in this function)     kconf_id_strings + id->name, zconf_tokenname(starttoken));     ^~~~~~~~~~~~~~~~ In file included from zconf.tab.c:2429:0: lex.zconf.c: In function 'zconflex': lex.zconf.c:1117:25: warning: initialization makes pointer from integer without a cast [-Wint-conversion]    struct kconf_id *id = kconf_id_lookup(zconftext, zconfleng);                          ^~~~~~~~~~~~~~~ lex.zconf.c:1192:25: warning: initialization makes pointer from integer without a cast [-Wint-conversion]    struct kconf_id *id = kconf_id_lookup(zconftext, zconfleng);                          ^~~~~~~~~~~~~~~ Makefile:95: recipe for target 'zconf.tab.o' failed make[2]: *** [zconf.tab.o] Error 1 Makefile:166: recipe for target 'build-lib-kconfig' failed make[1]: *** [build-lib-kconfig] Error 2 Makefile:126: recipe for target 'build' failed make: *** [build] Error 2

放弃，还是用更老的系统吧
lz用了travis的ubuntu docker镜像

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make[5]: Entering directory `/home/travis/builds/tomato-arm/release/src-rt-6.x.4708/router/nano' CDPATH="${ZSH_VERSION+.}:" && cd . && /bin/bash /home/travis/builds/tomato-arm/release/src-rt-6.x.4708/router/nano/missing aclocal-1.15 -I m4 configure.ac:27: error: Autoconf version 2.69 or higher is required configure.ac:27: the top level autom4te: /usr/bin/m4 failed with exit status: 63 aclocal-1.15: error: echo failed with exit status: 63 WARNING: 'aclocal-1.15' is probably too old.          You should only need it if you modified 'acinclude.m4' or          'configure.ac' or m4 files included by 'configure.ac'.          The 'aclocal' program is part of the GNU Automake package:          //www.gnu.org/software/automake>          It also requires GNU Autoconf, GNU m4 and Perl in order to run:          //www.gnu.org/software/autoconf>          //www.gnu.org/software/m4/>          //www.perl.org/> make[5]: *** [aclocal.m4] Error 63 make[5]: Leaving directory `/home/travis/builds/tomato-arm/release/src-rt-6.x.4708/router/nano' make[4]: *** [nano] Error 2

那就按他说的装2.69好了, 因为repo里只有2.68,可以用apt-cache policy autoconf查询

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cd ~ wget http://ftp.gnu.org/gnu/autoconf/autoconf-2.69.tar.gz tar xf autoconf-2.69.tar.gz cd autoconf-2.69 sh configure --prefix /usr make sudo  make install

因为lz懒得一步一步试验需要装哪些，所以直接用了编译tomato固件时候需要的那些依赖，在此省略（其实就是把tomato-ci repo里的 .travis.sh 里的pre_build_prep运行了一下，装了一堆automake, autoconf, libtool等)

编译crosstool-ng 1.21工具链

准备工作，添加如下配置文件，不然wget没法从https网站下载文件

~/.wgetrc

1	check_certificate = off

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sudo apt-get install gperf texinfo   mkdir -p /home/travis/src   # edit .config, modify uclibc config file path ct-ng menuconfig   ct-ng build.4

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export PATH=/home/travis/x-tools/mipsel-unknown-linux-uclibc/bin:$PATH   sudo apt-get install asciidoc   . ./travis.sh # then build install all dependencies   git clone git@github.com:oglops/shadowsocks-libev.git   cd shadowsocks-libev git submodule update --init --recursive   ./autogen.sh   CPPFLAGS="-I$HOME/cares-install/include -I$HOME/libev-install/include -I$HOME/zlib-install/include" LDFLAGS="-Wl,-rpath,/jffs/lib -L$HOME/cares-install/lib -L$HOME/libev-install/lib -L$HOME/zlib-install/lib" CC=mipsel-unknown-linux-uclibc-gcc CXX=mipsel-unknown-linux-uclibc-g++ AR=mipsel-unknown-linux-uclibc-ar RANLIB=mipsel-unknown-linux-uclibc-ranlib ./configure --disable-ssp --prefix=$HOME/ss-install --with-pcre=$HOME/pcre-install --with-sodium=$HOME/libsodium-install --with-mbedtls=$HOME/mbedtls-install --host=mipsel-uclibc-linux   make make install # Then possibly strip and upx the executable files

文件下载:
http://oglopss.github.io/ctng-ss-jekyll/
3.1.0之前的下载见repo的download文件夹，或者上面github pages页面底部的之前一遍blog里的mega网盘
参考:
Issue during make #39
Repositories on Docker Hub