我已经将我的Ruby项目从Linux（使用RVM）导入到MacOSX（rbenv）。两者都使用相同的rails和ruby版本。当我按照GoRails指南在两台机器上安装RoR时。
因此，当我将sample_app从Linux导入MacOSX时，我运行了捆绑安装。我安装了很多近 50-100 颗宝石，但这个失败了。我不知道为什么它会失败。对我来说，它似乎无法编译一些c文件，但我不知道如何修复这些错误。谢谢
Installing puma 2.11.1 with native extensions
Gem::Ext::BuildError: ERROR: Failed to build gem native extension.
/usr/local/var/rbenv/versions/2.2.3/bin/ruby -r ./siteconf20160304-50117-b8gsxw.rb extconf.rb
checking for BIO_read() in -lcrypto... yes
checking for SSL_CTX_new() in -lssl... yes
creating Makefile
make "DESTDIR=" clean
make "DESTDIR="
compiling http11_parser.c
compiling io_buffer.c
io_buffer.c:119:10: warning: passing 'uint8_t *' (aka 'unsigned char *') to parameter of type 'const char *' converts between pointers to integer types with different sign [-Wpointer-sign]
return rb_str_new(b->top, b->cur - b->top);
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/var/rbenv/versions/2.2.3/include/ruby-2.2.0/ruby/intern.h:796:20: note: expanded from macro 'rb_str_new'
rb_str_new_static((str), (len)) :
^~~~~
/usr/local/var/rbenv/versions/2.2.3/include/ruby-2.2.0/ruby/intern.h:727:37: note: passing argument to parameter here
VALUE rb_str_new_static(const char *, long);
^
io_buffer.c:119:10: warning: passing 'uint8_t *' (aka 'unsigned char *') to parameter of type 'const char *' converts between pointers to integer types with different sign [-Wpointer-sign]
return rb_str_new(b->top, b->cur - b->top);
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/var/rbenv/versions/2.2.3/include/ruby-2.2.0/ruby/intern.h:797:13: note: expanded from macro 'rb_str_new'
rb_str_new((str), (len));
^~~~~
/usr/local/var/rbenv/versions/2.2.3/include/ruby-2.2.0/ruby/intern.h:706:29: note: passing argument to parameter here
VALUE rb_str_new(const char*, long);
^
2 warnings generated.
compiling mini_ssl.c
In file included from mini_ssl.c:3:
/usr/local/var/rbenv/versions/2.2.3/include/ruby-2.2.0/ruby/backward/rubyio.h:2:2: warning: use "ruby/io.h" instead of "rubyio.h" [-W#warnings]
#warning use "ruby/io.h" instead of "rubyio.h"
^
mini_ssl.c:4:10: fatal error: 'openssl/bio.h' file not found
#include <openssl/bio.h>
^
1 warning and 1 error generated.
make: *** [mini_ssl.o] Error 1
make failed, exit code 2
Gem files will remain installed in /usr/local/var/rbenv/versions/2.2.3/lib/ruby/gems/2.2.0/gems/puma-2.11.1 for inspection.
Results logged to /usr/local/var/rbenv/versions/2.2.3/lib/ruby/gems/2.2.0/extensions/x86_64-darwin-15/2.2.0-static/puma-2.11.1/gem_make.out
你需要自制软件和openssl。运行brew install openssl然后 bundle config build.puma --with-opt-dir=/usr/local/opt/openssl
然后运行bundle install应该可以工作。
相关问题：https://github.com/puma/puma/issues/718
如果您将 ubuntu 14.04 用于任何升级版本，并且如果您在系统中安装了 OpenSSL，那么您只需要运行这些命令
首先 只需获取OpenSSL正常安装的位置，如果您已安装在单独的位置，则首先使用此方法获取该位置/usr/bin/openssl
sudo find / -name openssl
然后
bundle config build.puma --with-opt-dir=/usr/bin/openssl
然后
bundle install
除非路径中安装的OpenSSL正确，否则它将成功
如果您之前尚未安装 OpenSSL，只需使用
sudo apt-get install openssl
它将完美地工作。干杯
在 ubuntu 上安装 openssl ruby-openssl 和 libssl-dev 终于帮助了我。
apt-get install openssl ruby-openssl libssl-dev
嘿，
您是否尝试安装带有以下标志的 gem？
-- --with-cflags="-Wno-error=implicit-function-declaration"