Question

我相信conftest缺少正确的标志，但是我无法弄清楚mkmf.log的内容，这些内容包含在下面。 任何想法都会受到赞赏！

我正在编译用于OpenWRT路由器（mips）
使用ruby 1.9.2执行此测试，然后构建Makefile
The idn extconf.rb file in question
A related question, which is why I'm using the referenced gem and not the rubyforge one


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

"i486-linux-gnu-gcc -o conftest -I /backfire/staging_dir/host/include/ruby-1.9.1/i486-linux -I /backfire/staging_dir/host/include/ruby-1.9.1/ruby/backward -I /backfire/staging_dir/host/include/ruby-1.9.1 -I. -O2 -I /backfire/staging_dir/host/include -D_FILE_OFFSET_BITS=64 -O2 -I /backfire/staging_dir/host/include -O2 -I /backfire/staging_dir/host/include conftest.c  -L. -L /backfire/staging_dir/host/lib -Wl,-R /backfire/staging_dir/host/lib -L.  -rdynamic -Wl,-export-dynamic     -Wl,-R -Wl, /backfire/staging_dir/host/lib -L /backfire/staging_dir/host/lib -lruby-static  -lpthread -lrt -ldl -lcrypt -lm   -lc"
checked program was:
/* begin /
1: #include "ruby.h"
2: 
3: int main() {return 0;}
/ end */

"i486-linux-gnu-gcc -o conftest -I /backfire/staging_dir/host/include/ruby-1.9.1/i486-linux -I /backfire/staging_dir/host/include/ruby-1.9.1/ruby/backward -I /backfire/staging_dir/host/include/ruby-1.9.1 -I. -O2 -I /backfire/staging_dir/host/include -D_FILE_OFFSET_BITS=64 -O2 -I /backfire/staging_dir/host/include -O2 -I /backfire/staging_dir/host/include conftest.c  -L. -L /backfire/staging_dir/host/lib -Wl,-R /backfire/staging_dir/host/lib -L.  -rdynamic -Wl,-export-dynamic     -Wl,-R -Wl, /backfire/staging_dir/host/lib -L /backfire/staging_dir/host/lib -lruby-static -lidn  -lpthread -lrt -ldl -lcrypt -lm   -lc"
/usr/bin/ld: skipping incompatible  /backfire/staging_dir/host/lib/libidn.so when searching for -lidn
/usr/bin/ld: skipping incompatible  /backfire/staging_dir/host/lib/libidn.a when searching for -lidn
/usr/bin/ld: skipping incompatible  /backfire/staging_dir/host/lib/libidn.so when searching for -lidn
/usr/bin/ld: skipping incompatible  /backfire/staging_dir/host/lib/libidn.a when searching for -lidn
/usr/bin/ld: cannot find -lidn
collect2: ld returned 1 exit status
checked program was:
/* begin */
1: #include "ruby.h"
2: 
3: /top/
4: int main() {return 0;}
5: int t() { void ((volatile p)()); p = (void (()()))main; return 0; }
/* end */

"i486-linux-gnu-gcc -o conftest -I /backfire/staging_dir/host/include/ruby-1.9.1/i486-linux -I /backfire/staging_dir/host/include/ruby-1.9.1/ruby/backward -I /backfire/staging_dir/host/include/ruby-1.9.1 -I. -O2 -I /backfire/staging_dir/host/include -D_FILE_OFFSET_BITS=64 -O2 -I /backfire/staging_dir/host/include -O2 -I /backfire/staging_dir/host/include conftest.c  -L. -L /backfire/staging_dir/host/lib -Wl,-R /backfire/staging_dir/host/lib -L.  -rdynamic -Wl,-export-dynamic     -Wl,-R -Wl, /backfire/staging_dir/host/lib -L /backfire/staging_dir/host/lib -lruby-static -lidn  -lpthread -lrt -ldl -lcrypt -lm   -lc"
/usr/bin/ld: skipping incompatible  /backfire/staging_dir/host/lib/libidn.so when searching for -lidn
/usr/bin/ld: skipping incompatible  /backfire/staging_dir/host/lib/libidn.a when searching for -lidn
/usr/bin/ld: skipping incompatible  /backfire/staging_dir/host/lib/libidn.so when searching for -lidn
/usr/bin/ld: skipping incompatible  /backfire/staging_dir/host/lib/libidn.a when searching for -lidn
/usr/bin/ld: cannot find -lidn
collect2: ld returned 1 exit status
checked program was:
/* begin */
1: #include "ruby.h"
2: 
3: /top/
4: int main() {return 0;}
5: int t() { main(); return 0; }
/* end */

Answer 1

Ruby的mkmf.rb正在使用本机编译器来测试libidn，但由于你的目标是MIPS，它需要使用交叉编译器。我假设您的mkmf.log中列出的libidn.so和libidn.a文件是为MIPS构建的。由于本机i486编译器需要i486库，因此在遇到MIPS文件时会报告“跳过不兼容”错误。

我认为您需要修改extconf.rb文件以指向交叉编译器。类似的东西：

require 'mkmf'

CONFIG['CC'] = '/path/to/mips-gcc'

此外，您可能需要将mkmf.rb指向MIPS的Ruby头文件。我不确定需要设置什么，但我猜至少应该在extconf.rb文件中覆盖CONFIG['arch']和CONFIG['archdir']。

在“conftest”中“跳过不兼容的”错误

1 个答案: