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70 lines
2.2 KiB
Plaintext
70 lines
2.2 KiB
Plaintext
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How To Build libcurl to Use c-ares For Asynch Name Resolves
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===========================================================
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c-ares:
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http://c-ares.haxx.se/
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NOTE
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The latest libcurl version requires c-ares 1.6.0 or later.
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Once upon the time libcurl built fine with the "original" ares. That is no
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longer true. You need to use c-ares.
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Build c-ares
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============
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1. unpack the c-ares archive
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2. cd c-ares-dir
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3. ./configure
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4. make
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5. make install
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Build libcurl to use c-ares in the curl source tree
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===================================================
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1. name or symlink the c-ares source directory 'ares' in the curl source
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directory
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2. ./configure --enable-ares
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Optionally, you can point out the c-ares install tree root with the the
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--enable-ares option.
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3. make
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Build libcurl to use an installed c-ares
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========================================
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1. ./configure --enable-ares=/path/to/ares/install
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2. make
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c-ares on win32
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===============
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(description brought by Dominick Meglio)
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First I compiled c-ares. I changed the default C runtime library to be the
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single-threaded rather than the multi-threaded (this seems to be required to
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prevent linking errors later on). Then I simply build the areslib project (the
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other projects adig/ahost seem to fail under MSVC).
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Next was libcurl. I opened lib/config-win32.h and I added a:
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#define USE_ARES 1
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Next thing I did was I added the path for the ares includes to the include
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path, and the libares.lib to the libraries.
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Lastly, I also changed libcurl to be single-threaded rather than
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multi-threaded, again this was to prevent some duplicate symbol errors. I'm
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not sure why I needed to change everything to single-threaded, but when I
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didn't I got redefinition errors for several CRT functions (malloc, stricmp,
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etc.)
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I would have modified the MSVC++ project files, but I only have VC.NET and it
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uses a different format than VC6.0 so I didn't want to go and change
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everything and remove VC6.0 support from libcurl.
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