>gem install curb -- --with-curl-dir=C:/curl-7.43.0-win32/bin --with-curl-lib=C:/curl-7.43.0-win32/lib --with-curl-include=C:/curl-7.43.0-win32/include
我收到以下错误
Temporarily enhancing PATH to include DevKit...
Building native extensions. This could take a while...
ERROR: Error installing curb:
ERROR: Failed to build gem native extension.
C:/Ruby21-x64/bin/ruby.exe extconf.rb --with-curl-dir=C:/curl-7.43.0-win
32/bin --with-curl-lib=C:/curl-7.43.0-win32/lib --with-curl-include=C:/curl-7.43
.0-win32/include
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=C:/Ruby21-x64/bin/ruby
--with-curl-dir
--with-curl-include=${curl-dir}/include
--with-curl-lib=${curl-dir}/lib
--with-curllib
--without-curllib
extconf.rb:18: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.
我已经研究了几个小时并尝试安装几个不同的 curl 版本，确保 curl 目录在我的路径中。使用 mingw32 和 windows 命令行，错误仍然存在。
也试过：
gem install curb --platform=mswin32
更新
下面是来自遏制目录的 mkmf.log。它想告诉我什么？
find_executable: checking for curl-config... -------------------- no
--------------------
have_library: checking for main() in -lcurl... -------------------- no
"x86_64-w64-mingw32-gcc -o conftest.exe -Ic:/Ruby21-x64/include/ruby-2.1.0/x64-mingw32 -Ic:/Ruby21-x64/include/ruby-2.1.0/ruby/backward -Ic:/Ruby21-x64/include/ruby-2.1.0 -I. -IC:/curl-7.40.0-devel-mingw32/include -DFD_SETSIZE=2048 -D_WIN32_WINNT=0x0501 -D__MINGW_USE_VC2005_COMPAT -D_FILE_OFFSET_BITS=64 -O3 -fno-omit-frame-pointer -fno-fast-math -g -Wall -Wextra -Wno-unused-parameter -Wno-parentheses -Wno-long-long -Wno-missing-field-initializers -Wunused-variable -Wpointer-arith -Wwrite-strings -Wdeclaration-after-statement -Wimplicit-function-declaration conftest.c -L. -Lc:/Ruby21-x64/lib -LC:/curl-7.40.0-devel-mingw32/bin -L. -lx64-msvcrt-ruby210 -lshell32 -lws2_32 -liphlpapi -limagehlp -lshlwapi "
checked program was:
/* begin */
1: #include "ruby.h"
2:
3: #include <winsock2.h>
4: #include <windows.h>
5: int main(int argc, char **argv)
6: {
7: return 0;
8: }
/* end */
"x86_64-w64-mingw32-gcc -o conftest.exe -Ic:/Ruby21-x64/include/ruby-2.1.0/x64-mingw32 -Ic:/Ruby21-x64/include/ruby-2.1.0/ruby/backward -Ic:/Ruby21-x64/include/ruby-2.1.0 -I. -IC:/curl-7.40.0-devel-mingw32/include -DFD_SETSIZE=2048 -D_WIN32_WINNT=0x0501 -D__MINGW_USE_VC2005_COMPAT -D_FILE_OFFSET_BITS=64 -O3 -fno-omit-frame-pointer -fno-fast-math -g -Wall -Wextra -Wno-unused-parameter -Wno-parentheses -Wno-long-long -Wno-missing-field-initializers -Wunused-variable -Wpointer-arith -Wwrite-strings -Wdeclaration-after-statement -Wimplicit-function-declaration conftest.c -L. -Lc:/Ruby21-x64/lib -LC:/curl-7.40.0-devel-mingw32/bin -L. -lx64-msvcrt-ruby210 -lcurl -lshell32 -lws2_32 -liphlpapi -limagehlp -lshlwapi "
conftest.c: In function 't':
conftest.c:16:32: warning: variable 'p' set but not used [-Wunused-but-set-variable]
c:/ruby21-x64/devkit/mingw/bin/../lib/gcc/x86_64-w64-mingw32/4.7.2/../../../../x86_64-w64-mingw32/bin/ld.exe: skipping incompatible C:/curl-7.40.0-devel-mingw32/bin/libcurl.dll when searching for -lcurl
c:/ruby21-x64/devkit/mingw/bin/../lib/gcc/x86_64-w64-mingw32/4.7.2/../../../../x86_64-w64-mingw32/bin/ld.exe: skipping incompatible C:/curl-7.40.0-devel-mingw32/bin/libcurl.dll when searching for -lcurl
c:/ruby21-x64/devkit/mingw/bin/../lib/gcc/x86_64-w64-mingw32/4.7.2/../../../../x86_64-w64-mingw32/bin/ld.exe: cannot find -lcurl
collect2.exe: error: ld returned 1 exit status
checked program was:
/* begin */
1: #include "ruby.h"
2:
3: #include <winsock2.h>
4: #include <windows.h>
5:
6: /*top*/
7: extern int t(void);
8: int main(int argc, char **argv)
9: {
10: if (argc > 1000000) {
11: printf("%p", &t);
12: }
13:
14: return 0;
15: }
16: int t(void) { void ((*volatile p)()); p = (void ((*)()))main; return 0; }
/* end */
"x86_64-w64-mingw32-gcc -o conftest.exe -Ic:/Ruby21-x64/include/ruby-2.1.0/x64-mingw32 -Ic:/Ruby21-x64/include/ruby-2.1.0/ruby/backward -Ic:/Ruby21-x64/include/ruby-2.1.0 -I. -IC:/curl-7.40.0-devel-mingw32/include -DFD_SETSIZE=2048 -D_WIN32_WINNT=0x0501 -D__MINGW_USE_VC2005_COMPAT -D_FILE_OFFSET_BITS=64 -O3 -fno-omit-frame-pointer -fno-fast-math -g -Wall -Wextra -Wno-unused-parameter -Wno-parentheses -Wno-long-long -Wno-missing-field-initializers -Wunused-variable -Wpointer-arith -Wwrite-strings -Wdeclaration-after-statement -Wimplicit-function-declaration conftest.c -L. -Lc:/Ruby21-x64/lib -LC:/curl-7.40.0-devel-mingw32/bin -L. -lx64-msvcrt-ruby210 -lcurl -lshell32 -lws2_32 -liphlpapi -limagehlp -lshlwapi "
conftest.c: In function 't':
conftest.c:16:1: error: too few arguments to function 'main'
conftest.c:8:5: note: declared here
checked program was:
/* begin */
1: #include "ruby.h"
2:
3: #include <winsock2.h>
4: #include <windows.h>
5:
6: /*top*/
7: extern int t(void);
8: int main(int argc, char **argv)
9: {
10: if (argc > 1000000) {
11: printf("%p", &t);
12: }
13:
14: return 0;
15: }
16: int t(void) { main(); return 0; }
/* end */
--------------------
另外，我的路径中有 curl-config 可执行文件。