无法在 Linux Mint 中安装 curb gem

Question

我在安装 curb 时遇到问题。当我在控制台中输入时：

 sudo gem install curb

它returns我以下错误：

Fetching: curb-0.8.6.gem (100%)
Building native extensions.  This could take a while...
ERROR:  Error installing curb:
    ERROR: Failed to build gem native extension.

        /usr/bin/ruby1.9.1 extconf.rb
checking for curl-config... no
checking for main() in -lcurl... no
*** extconf.rb failed ***
Could not create Makefile due to some reason, probably lack of
necessary libraries and/or headers.  Check the mkmf.log file for more
details.  You may need configuration options.

Provided configuration options:
    --with-opt-dir
    --without-opt-dir
    --with-opt-include
    --without-opt-include=${opt-dir}/include
    --with-opt-lib
    --without-opt-lib=${opt-dir}/lib
    --with-make-prog
    --without-make-prog
    --srcdir=.
    --curdir
    --ruby=/usr/bin/ruby1.9.1
    --with-curl-dir
    --without-curl-dir
    --with-curl-include
    --without-curl-include=${curl-dir}/include
    --with-curl-lib
    --without-curl-lib=${curl-dir}/lib
    --with-curllib
    --without-curllib
extconf.rb:23:in `<main>':   Can't find libcurl or curl/curl.h (RuntimeError)

  Try passing --with-curl-dir or --with-curl-lib and --with-curl-include
  options to extconf.


Gem files will remain installed in /var/lib/gems/1.9.1/gems/curb-0.8.6 for inspection.
Results logged to /var/lib/gems/1.9.1/gems/curb-0.8.6/ext/gem_make.out

我不知道如何解决这个问题。我在 Google 中寻找一些解决方案，但没有找到任何可以帮助我解决这个问题的方法。请帮忙...

编辑：

这里是 mkmf.log 文件。也许对调试有帮助：

find_executable: checking for curl-config... -------------------- no

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

have_library: checking for main() in -lcurl... -------------------- no

"gcc -o conftest -I/usr/include/ruby-1.9.1/x86_64-linux -I/usr/include/ruby-1.9.1/ruby/backward -I/usr/include/ruby-1.9.1 -I. -D_FORTIFY_SOURCE=2  -D_FORTIFY_SOURCE=2 -g -O2 -fstack-protector --param=ssp-buffer-size=4 -Wformat -Werror=format-security -Wall -fno-strict-aliasing -fPIC conftest.c  -L. -L/usr/lib -L. -Wl,-Bsymbolic-functions -Wl,-z,relro -L/build/buildd/ruby1.9.1-1.9.3.484/debian/lib -rdynamic -Wl,-export-dynamic     -lruby-1.9.1  -lpthread -lrt -ldl -lcrypt -lm   -lc"
checked program was:
/* begin */
1: #include "ruby.h"
2: 
3: int main(int argc, char **argv)
4: {
5:   return 0;
6: }
/* end */

"gcc -o conftest -I/usr/include/ruby-1.9.1/x86_64-linux -I/usr/include/ruby-1.9.1/ruby/backward -I/usr/include/ruby-1.9.1 -I. -D_FORTIFY_SOURCE=2  -D_FORTIFY_SOURCE=2 -g -O2 -fstack-protector --param=ssp-buffer-size=4 -Wformat -Werror=format-security -Wall -fno-strict-aliasing -fPIC conftest.c  -L. -L/usr/lib -L. -Wl,-Bsymbolic-functions -Wl,-z,relro -L/build/buildd/ruby1.9.1-1.9.3.484/debian/lib -rdynamic -Wl,-export-dynamic     -lruby-1.9.1 -lcurl  -lpthread -lrt -ldl -lcrypt -lm   -lc"
conftest.c: In function ‘t’:
conftest.c:4:53: error: ‘main’ undeclared (first use in this function)
 int t() { void ((*volatile p)()); p = (void ((*)()))main; return 0; }
                                                     ^
conftest.c:4:53: note: each undeclared identifier is reported only once for each function it appears in
conftest.c:4:28: warning: variable ‘p’ set but not used [-Wunused-but-set-variable]
 int t() { void ((*volatile p)()); p = (void ((*)()))main; return 0; }
                            ^
checked program was:
/* begin */
 1: #include "ruby.h"
 2: 
 3: /*top*/
 4: int t() { void ((*volatile p)()); p = (void ((*)()))main; return 0; }
 5: int main(int argc, char **argv)
 6: {
 7:   if (argc > 1000000) {
 8:     printf("%p", &t);
 9:   }
10: 
11:   return 0;
12: }
/* end */

"gcc -o conftest -I/usr/include/ruby-1.9.1/x86_64-linux -I/usr/include/ruby-1.9.1/ruby/backward -I/usr/include/ruby-1.9.1 -I. -D_FORTIFY_SOURCE=2  -D_FORTIFY_SOURCE=2 -g -O2 -fstack-protector --param=ssp-buffer-size=4 -Wformat -Werror=format-security -Wall -fno-strict-aliasing -fPIC conftest.c  -L. -L/usr/lib -L. -Wl,-Bsymbolic-functions -Wl,-z,relro -L/build/buildd/ruby1.9.1-1.9.3.484/debian/lib -rdynamic -Wl,-export-dynamic     -lruby-1.9.1 -lcurl  -lpthread -lrt -ldl -lcrypt -lm   -lc"
conftest.c: In function ‘t’:
conftest.c:4:1: warning: implicit declaration of function ‘main’ [-Wimplicit-function-declaration]
 int t() { main(); return 0; }
 ^
/usr/bin/ld: cannot find -lcurl
collect2: error: ld returned 1 exit status
checked program was:
/* begin */
 1: #include "ruby.h"
 2: 
 3: /*top*/
 4: int t() { main(); return 0; }
 5: int main(int argc, char **argv)
 6: {
 7:   if (argc > 1000000) {
 8:     printf("%p", &t);
 9:   }
10: 
11:   return 0;
12: }
/* end */

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

Answer 1

如果您在 Ubuntu 上，请在继续之前执行此操作：

sudo apt-get install libcurl3 libcurl3-gnutls libcurl4-openssl-dev

或者对于其他 OS 安装，在选择 OS:

后从这里下载包

http://curl.haxx.se/dlwiz/?type=devel

Answer 2

您的 Mint 安装可能缺少 curl 开发库。

在命令行上试试这个：

sudo apt-get install libcurl4-openssl-dev

Answer 3

使用上一个答案中的命令

sudo apt-get install libcurl3 libcurl3-gnutls libcurl4-openssl-dev

有时 Mint 无法安装 libcurl4-openssl-dev 因为下一个错误。

The following packages have unmet dependencies:
 libldap2-dev : Depends: libldap-2.4-2 (= 2.4.31-1+nmu2ubuntu8.2) but 2.4.31-1+nmu2ubuntu8.3 is to be installed
E: Unable to correct problems, you have held broken packages.

在我的例子中，我用下一个命令解决了它：

sudo aptitude install libldap2-dev

起初它建议什么都不做，我选择了否，然后它建议将我当前安装的版本降级到正确的版本。我选择了是。然后我就可以像往常一样安装 libcurl4-openssl-dev

无法在 Linux Mint 中安装 curb gem

Can't install curb gem in Linux Mint

ruby

linux

ruby-on-rails

curb