ruby-on-rails - pg 1.0.0 `fatal error: ' libpq-fe.h' 文件未找到`

Question

安装 pg (1.0.0) 时出错，Bundler 无法继续

我在安装包时遇到问题，无法完成安装。

我该怎么做才能完成捆绑包？

  find_executable: checking for pg_config... -------------------- no

    --------------------

    find_header: checking for libpq-fe.h... -------------------- no

    "clang -o conftest -I/Users/leotyndall/.rbenv/versions/2.4.2/include/ruby-2.4.0/x86_64-darwin17 -I/Users/leotyndall/.rbenv/versions/2.4.2/include/ruby-2.4.0/ruby/backward -I/Users/leotyndall/.rbenv/versions/2.4.2/include/ruby-2.4.0 -I. -I/Users/leotyndall/.rbenv/versions/2.4.2/include  -D_XOPEN_SOURCE -D_DARWIN_C_SOURCE -D_DARWIN_UNLIMITED_SELECT -D_REENTRANT    -O3 -Wno-error=shorten-64-to-32  -pipe conftest.c  -L. -L/Users/leotyndall/.rbenv/versions/2.4.2/lib -L. -L/Users/leotyndall/.rbenv/versions/2.4.2/lib  -fstack-protector -L/usr/local/lib     -lruby-static -framework CoreFoundation  -lpthread -ldl -lobjc "
    checked program was:
    /* begin */
    1: #include "ruby.h"
    2: 
    3: int main(int argc, char **argv)
    4: {
    5:   return 0;
    6: }
    /* end */

        "clang -E -I/Users/leotyndall/.rbenv/versions/2.4.2/include/ruby-2.4.0/x86_64-darwin17 - 
             I/Users/leotyndall/.rbenv/versions/2.4.2/include/ruby- 
         2.4.0/ruby/backward - 
         I/Users/leotyndall/.rbenv/versions/2.4.2/include/ruby-2.4.0 -I. - 
         I/Users/leotyndall/.rbenv/versions/2.4.2/include  -D_XOPEN_SOURCE - 
         D_DARWIN_C_SOURCE -D_DARWIN_UNLIMITED_SELECT -D_REENTRANT    -O3 -Wno- 
         error=shorten-64-to-32  -pipe  conftest.c -o conftest.i"
         conftest.c:3:10: fatal error: 'libpq-fe.h' file not found
         #include <libpq-fe.h>
             ^~~~~~~~~~~~
         1 error generated.
         checked program was:
         /* begin */
         1: #include "ruby.h"
         2: 
         3: #include <libpq-fe.h>
        /* end */

    --------------------


     extconf failed, exit code 1


        An error occurred while installing pg (1.0.0), and Bundler cannot continue.
        Make sure that `gem install pg -v '1.0.0'` succeeds before bundling.

Answer 1

尝试安装 libpq-dev或者它的等效于您的操作系统:

对于 Ubuntu 系统:sudo apt-get install libpq-dev

在 Red Hat Linux (RHEL) 系统:yum install postgresql-devel

对于 Mac Homebrew :brew install postgresql

对于 Mac MacPorts PostgreSQL:gem install pg -- --with-pg-config=/opt/local/lib/postgresql[version number]/bin/pg_config

对于 OpenSuse :zypper in postgresql-devel