如何在Mac OS X上安装ruby-filemagic ?
How do I install ruby-filemagic on Mac OS X?
我发现了一些现有的问题,但没有一个答案在他们工作。
尝试在雪豹上使用brew而不是ports安装ruby-filemagic
在新的RHEL6服务器上安装ruby-filemagic gem有困难
他们都指向这个页面作为答案
https://gist.github.com/eparreno/1845561但这也行不通。我仍然得到以下错误:
Building native extensions with: '--with-magic-include=/usr/local/include --with-magic-lib=/usr/local/lib/'
This could take a while...
ERROR: Error installing ruby-filemagic:
ERROR: Failed to build gem native extension.
/System/Library/Frameworks/Ruby.framework/Versions/2.0/usr/bin/ruby extconf.rb --with-magic-include=/usr/local/include --with-magic-lib=/usr/local/lib/
checking for main() in -lgnurx... no
checking for magic_open() in -lmagic... no
*** ERROR: missing required library to compile this module
*** 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=/System/Library/Frameworks/Ruby.framework/Versions/2.0/usr/bin/ruby
--with-magic-dir
--without-magic-dir
--with-magic-include=${magic-dir}/include
--with-magic-lib=${magic-dir}/
--with-gnurx-dir
--without-gnurx-dir
--with-gnurx-include
--without-gnurx-include=${gnurx-dir}/include
--with-gnurx-lib
--without-gnurx-lib=${gnurx-dir}/
--with-gnurxlib
--without-gnurxlib
--with-magiclib
--without-magiclib
Gem files will remain installed in /Library/Ruby/Gems/2.0.0/gems/ruby-filemagic-0.7.0 for inspection.
Results logged to /Library/Ruby/Gems/2.0.0/gems/ruby-filemagic-0.7.0/ext/filemagic/gem_make.out
是什么改变了?在提到mkmf.log的错误中,我看到日志文件中有很多编译的东西,所以我不知道错误的确切位置。它看起来像这样:
have_library: checking for main() in -lgnurx... -------------------- no
"xcrun clang -o conftest -I/System/Library/Frameworks/Ruby.framework/Versions/2.0/usr/include/ruby-2.0.0/universal-darwin14 -I/System/Library/Frameworks/Ruby.framework/Versions/2.0/usr/include/ruby-2.0.0/ruby/backward -I/System/Library/Frameworks/Ruby.framework/Versions/2.0/usr/include/ruby-2.0.0 -I. -I/usr/local/include -D_XOPEN_SOURCE -D_DARWIN_C_SOURCE -D_DARWIN_UNLIMITED_SELECT -D_REENTRANT -g -Os -pipe -DHAVE_GCC_SYNC_BUILTINS conftest.c -L. -L/System/Library/Frameworks/Ruby.framework/Versions/2.0/usr/lib -L/usr/local/lib/ -L. -L/usr/local/lib -arch x86_64 -arch i386 -lruby.2.0.0 -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 */
"xcrun clang -o conftest -I/System/Library/Frameworks/Ruby.framework/Versions/2.0/usr/include/ruby-2.0.0/universal-darwin14 -I/System/Library/Frameworks/Ruby.framework/Versions/2.0/usr/include/ruby-2.0.0/ruby/backward -I/System/Library/Frameworks/Ruby.framework/Versions/2.0/usr/include/ruby-2.0.0 -I. -I/usr/local/include -D_XOPEN_SOURCE -D_DARWIN_C_SOURCE -D_DARWIN_UNLIMITED_SELECT -D_REENTRANT -g -Os -pipe -DHAVE_GCC_SYNC_BUILTINS conftest.c -L. -L/System/Library/Frameworks/Ruby.framework/Versions/2.0/usr/lib -L/usr/local/lib/ -L. -L/usr/local/lib -arch x86_64 -arch i386 -lruby.2.0.0 -lgnurx -lpthread -ldl -lobjc "
conftest.c:5:57: error: use of undeclared identifier 'main'
int t(void) { void ((*volatile p)()); p = (void ((*)()))main; return 0; }
^
1 error generated.
checked program was:
/* begin */
1: #include "ruby.h"
2:
3: /*top*/
4: extern int t(void);
5: int t(void) { void ((*volatile p)()); p = (void ((*)()))main; return 0; }
6: int main(int argc, char **argv)
7: {
8: if (argc > 1000000) {
9: printf("%p", &t);
10: }
11:
12: return 0;
13: }
/* end */
"xcrun clang -o conftest -I/System/Library/Frameworks/Ruby.framework/Versions/2.0/usr/include/ruby-2.0.0/universal-darwin14 -I/System/Library/Frameworks/Ruby.framework/Versions/2.0/usr/include/ruby-2.0.0/ruby/backward -I/System/Library/Frameworks/Ruby.framework/Versions/2.0/usr/include/ruby-2.0.0 -I. -I/usr/local/include -D_XOPEN_SOURCE -D_DARWIN_C_SOURCE -D_DARWIN_UNLIMITED_SELECT -D_REENTRANT -g -Os -pipe -DHAVE_GCC_SYNC_BUILTINS conftest.c -L. -L/System/Library/Frameworks/Ruby.framework/Versions/2.0/usr/lib -L/usr/local/lib/ -L. -L/usr/local/lib -arch x86_64 -arch i386 -lruby.2.0.0 -lgnurx -lpthread -ldl -lobjc "
conftest.c:5:15: warning: implicit declaration of function 'main' is invalid in C99 [-Wimplicit-function-declaration]
int t(void) { main(); return 0; }
^
1 warning generated.
ld: library not found for -lgnurx
conftest.c:5:15: warning: implicit declaration of function 'main' is invalid in C99 [-Wimplicit-function-declaration]
int t(void) { main(); return 0; }
^
1 warning generated.
clang: error: linker command failed with exit code 1 (use -v to see invocation)
checked program was:
/* begin */
1: #include "ruby.h"
2:
3: /*top*/
4: extern int t(void);
5: int t(void) { main(); return 0; }
6: int main(int argc, char **argv)
7: {
8: if (argc > 1000000) {
9: printf("%p", &t);
10: }
11:
12: return 0;
13: }
/* end */
--------------------
have_library: checking for magic_open() in -lmagic... -------------------- no
"xcrun clang -o conftest -I/System/Library/Frameworks/Ruby.framework/Versions/2.0/usr/include/ruby-2.0.0/universal-darwin14 -I/System/Library/Frameworks/Ruby.framework/Versions/2.0/usr/include/ruby-2.0.0/ruby/backward -I/System/Library/Frameworks/Ruby.framework/Versions/2.0/usr/include/ruby-2.0.0 -I. -I/usr/local/include -D_XOPEN_SOURCE -D_DARWIN_C_SOURCE -D_DARWIN_UNLIMITED_SELECT -D_REENTRANT -g -Os -pipe -DHAVE_GCC_SYNC_BUILTINS conftest.c -L. -L/System/Library/Frameworks/Ruby.framework/Versions/2.0/usr/lib -L/usr/local/lib/ -L. -L/usr/local/lib -arch x86_64 -arch i386 -lruby.2.0.0 -lmagic -lpthread -ldl -lobjc "
conftest.c:5:57: error: use of undeclared identifier 'magic_open'
int t(void) { void ((*volatile p)()); p = (void ((*)()))magic_open; return 0; }
^
1 error generated.
checked program was:
/* begin */
1: #include "ruby.h"
2:
3: /*top*/
4: extern int t(void);
5: int t(void) { void ((*volatile p)()); p = (void ((*)()))magic_open; return 0; }
6: int main(int argc, char **argv)
7: {
8: if (argc > 1000000) {
9: printf("%p", &t);
10: }
11:
12: return 0;
13: }
/* end */
"xcrun clang -o conftest -I/System/Library/Frameworks/Ruby.framework/Versions/2.0/usr/include/ruby-2.0.0/universal-darwin14 -I/System/Library/Frameworks/Ruby.framework/Versions/2.0/usr/include/ruby-2.0.0/ruby/backward -I/System/Library/Frameworks/Ruby.framework/Versions/2.0/usr/include/ruby-2.0.0 -I. -I/usr/local/include -D_XOPEN_SOURCE -D_DARWIN_C_SOURCE -D_DARWIN_UNLIMITED_SELECT -D_REENTRANT -g -Os -pipe -DHAVE_GCC_SYNC_BUILTINS conftest.c -L. -L/System/Library/Frameworks/Ruby.framework/Versions/2.0/usr/lib -L/usr/local/lib/ -L. -L/usr/local/lib -arch x86_64 -arch i386 -lruby.2.0.0 -lmagic -lpthread -ldl -lobjc "
conftest.c:5:15: warning: implicit declaration of function 'magic_open' is invalid in C99 [-Wimplicit-function-declaration]
int t(void) { magic_open(); return 0; }
^
1 warning generated.
conftest.c:5:15: warning: implicit declaration of function 'magic_open' is invalid in C99 [-Wimplicit-function-declaration]
int t(void) { magic_open(); return 0; }
^
1 warning generated.
ld: warning: ignoring file /usr/local/lib//libmagic.dylib, file was built for x86_64 which is not the architecture being linked (i386): /usr/local/lib//libmagic.dylib
Undefined symbols for architecture i386:
"_magic_open", referenced from:
_t in conftest-d6cdee.o
ld: symbol(s) not found for architecture i386
clang: error: linker command failed with exit code 1 (use -v to see invocation)
checked program was:
/* begin */
1: #include "ruby.h"
2:
3: /*top*/
4: extern int t(void);
5: int t(void) { magic_open(); return 0; }
6: int main(int argc, char **argv)
7: {
8: if (argc > 1000000) {
9: printf("%p", &t);
10: }
11:
12: return 0;
13: }
/* end */
--------------------
主要问题似乎是这样的
conftest.c:5:57: error: use of undeclared identifier 'magic_open'
int t(void) { void ((*volatile p)()); p = (void ((*)()))magic_open; return 0; }
我不懂c++,所以我不知道magic_open的问题是什么
任何想法?
几年后…… 在Mac上试试。
brew install libmagic
希望这有助于其他人遇到的问题。
我认为你需要接受xcode许可例如,输入sudo clang
并按照所示的过程
相关文章:
- 在Ubuntu 16.04上安装Cilk时出现问题
- 递归列出所有目录中的C++与Python与Ruby的性能
- 在CMakeLists.txt的安装功能中使用.cmake文件有什么用
- C++:如何在CLion IDE中安装Boost
- 安装opencv失败-粘贴CMakeError.log的内容
- 在cygwin中测试新的boost安装时出现cpp错误
- 有人安装"IITB Simplecpp in mac"吗?
- 我可以在 Arduino 的库文件夹之外安装库吗?
- Mingw-64 在构建和安装后不会编译 openCV 代码
- 为什么构建目录中新构建的共享库与安装目录中的副本具有不同的依赖项集?
- 安装 libc++ 时出现问题
- 安装MinGW后C++编译器不起作用?
- 介子复制/安装头文件到输出目录并保持文件夹结构
- 无法安装 R 包 "nloptr"(Ubuntu 16.04 上的 R3.6.2) - C++编译器问题
- 如何在 Ubuntu 上安装 OpenCV for C/C++
- 检查是否安装了 windows10 C++
- 安装 psutil 和为 pypy 配置期间出错
- 如何在 Debian 10 上安装 CPP 手册页?
- 如何更改使用 CPack 安装的可执行文件的名称?
- 如何在Mac OS X上安装ruby-filemagic ?