mirror of
https://github.com/moparisthebest/curl
synced 2024-12-22 16:18:48 -05:00
59582a9d9d
-fvisibility=hidden on gcc >= 4.0. This reduces the size of the libcurl binary and speeds up dynamic linking by hiding all the internal symbols from the symbol table.
618 lines
22 KiB
Plaintext
618 lines
22 KiB
Plaintext
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\___|\___/|_| \_\_____|
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How To Compile
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Installing Binary Packages
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==========================
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Lots of people download binary distributions of curl and libcurl. This
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document does not describe how to install curl or libcurl using such a
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binary package. This document describes how to compile, build and install
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curl and libcurl from source code.
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UNIX
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====
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A normal unix installation is made in three or four steps (after you've
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unpacked the source archive):
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./configure
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make
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make test (optional)
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make install
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You probably need to be root when doing the last command.
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If you have checked out the sources from the CVS repository, read the
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CVS-INFO on how to proceed.
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Get a full listing of all available configure options by invoking it like:
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./configure --help
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If you want to install curl in a different file hierarchy than /usr/local,
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you need to specify that already when running configure:
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./configure --prefix=/path/to/curl/tree
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If you happen to have write permission in that directory, you can do 'make
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install' without being root. An example of this would be to make a local
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install in your own home directory:
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./configure --prefix=$HOME
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make
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make install
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The configure script always tries to find a working SSL library unless
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explicitly told not to. If you have OpenSSL installed in the default search
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path for your compiler/linker, you don't need to do anything special. If
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you have OpenSSL installed in /usr/local/ssl, you can run configure like:
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./configure --with-ssl
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If you have OpenSSL installed somewhere else (for example, /opt/OpenSSL,)
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you can run configure like this:
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./configure --with-ssl=/opt/OpenSSL
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If you insist on forcing a build without SSL support, even though you may
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have OpenSSL installed in your system, you can run configure like this:
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./configure --without-ssl
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If you have OpenSSL installed, but with the libraries in one place and the
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header files somewhere else, you have to set the LDFLAGS and CPPFLAGS
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environment variables prior to running configure. Something like this
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should work:
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(with the Bourne shell and its clones):
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CPPFLAGS="-I/path/to/ssl/include" LDFLAGS="-L/path/to/ssl/lib" \
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./configure
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(with csh, tcsh and their clones):
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env CPPFLAGS="-I/path/to/ssl/include" LDFLAGS="-L/path/to/ssl/lib" \
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./configure
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If you have shared SSL libs installed in a directory where your run-time
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linker doesn't find them (which usually causes configure failures), you can
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provide the -R option to ld on some operating systems to set a hard-coded
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path to the run-time linker:
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LDFLAGS=-R/usr/local/ssl/lib ./configure --with-ssl
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Another option to the previous trick, is to set LD_LIBRARY_PATH or edit the
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/etc/ld.so.conf file.
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If your SSL library was compiled with rsaref (this was common in the past
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when used in the United States), you may also need to set:
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LIBS=-lRSAglue -lrsaref
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(as suggested by Doug Kaufman)
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MORE OPTIONS
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To force configure to use the standard cc compiler if both cc and gcc are
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present, run configure like
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CC=cc ./configure
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or
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env CC=cc ./configure
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To force a static library compile, disable the shared library creation
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by running configure like:
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./configure --disable-shared
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To tell the configure script to skip searching for thread-safe functions,
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add an option like:
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./configure --disable-thread
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To build curl with kerberos4 support enabled, curl requires the krb4 libs
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and headers installed. You can then use a set of options to tell
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configure where those are:
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--with-krb4-includes[=DIR] Specify location of kerberos4 headers
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--with-krb4-libs[=DIR] Specify location of kerberos4 libs
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--with-krb4[=DIR] where to look for Kerberos4
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In most cases, /usr/athena is the install prefix and then it works with
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./configure --with-krb4=/usr/athena
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If you're a curl developer and use gcc, you might want to enable more
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debug options with the --enable-debug option.
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Win32
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=====
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MingW32
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-------
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Run the 'mingw32.bat' file to get the proper environment variables set,
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then run 'make mingw32' in the root dir. Use 'make mingw32-ssl' to build
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curl SSL enabled.
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If you have any problems linking libraries or finding header files, be sure
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to verify that the provided "Makefile.m32" files use the proper paths, and
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adjust as necessary.
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Cygwin
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------
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Almost identical to the unix installation. Run the configure script in the
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curl root with 'sh configure'. Make sure you have the sh executable in
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/bin/ or you'll see the configure fail towards the end.
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Run 'make'
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Dev-Cpp
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-------
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See the separate INSTALL.devcpp file for details.
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MSVC from command line
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----------------------
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Run the 'vcvars32.bat' file to get a proper environment. The
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vcvars32.bat file is part of the Microsoft development environment and
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you may find it in 'C:\Program Files\Microsoft Visual Studio\vc98\bin'
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provided that you installed Visual C/C++ 6 in the default directory.
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Then run 'nmake vc' in curl's root directory.
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If you want to compile with zlib support, you will need to build
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zlib (http://www.gzip.org/zlib/) as well. Please read the zlib
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documentation on how to compile zlib. Define the ZLIB_PATH environment
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variable to the location of zlib.h and zlib.lib, for example:
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set ZLIB_PATH=c:\zlib-1.2.1
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Then run 'nmake vc-zlib' in curl's root directory.
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If you want to compile with SSL support you need the OpenSSL package.
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Please read the OpenSSL documentation on how to compile and install
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the OpenSSL libraries. The build process of OpenSSL generates the
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libeay32.dll and ssleay32.dll files in the out32dll subdirectory in
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the OpenSSL home directory. OpenSSL static libraries (libeay32.lib,
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ssleay32.lib, RSAglue.lib) are created in the out32 subdirectory.
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Before running nmake define the OPENSSL_PATH environment variable with
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the root/base directory of OpenSSL, for example:
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set OPENSSL_PATH=c:\openssl-0.9.7d
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Then run 'nmake vc-ssl' or 'nmake vc-ssl-dll' in curl's root
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directory. 'nmake vc-ssl' will create a libcurl static and dynamic
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libraries in the lib subdirectory, as well as a statically linked
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version of curl.exe in the src subdirectory. This statically linked
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version is a standalone executable not requiring any DLL at
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runtime. This make method requires that you have the static OpenSSL
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libraries available in OpenSSL's out32 subdirectory.
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'nmake vc-ssl-dll' creates the libcurl dynamic library and
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links curl.exe against libcurl and OpenSSL dynamically.
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This executable requires libcurl.dll and the OpenSSL DLLs
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at runtime.
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Run 'nmake vc-ssl-zlib' to build with both ssl and zlib support.
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Borland C++ compiler
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---------------------
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compile openssl
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Make sure you include the paths to curl/include and openssl/inc32 in
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your bcc32.cnf file
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eg : -I"c:\Bcc55\include;c:\path_curl\include;c:\path_openssl\inc32"
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Check to make sure that all of the sources listed in lib/Makefile.b32
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are present in the /path_to_curl/lib directory. (Check the src
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directory for missing ones.)
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Make sure the environment variable "BCCDIR" is set to the install
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location for the compiler eg : c:\Borland\BCC55
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command line:
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make -f /path_to_curl/lib/Makefile-ssl.b32
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compile simplessl.c with appropriate links
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c:\curl\docs\examples\> bcc32 -L c:\path_to_curl\lib\libcurl.lib
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-L c:\borland\bcc55\lib\psdk\ws2_32.lib
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-L c:\openssl\out32\libeay32.lib
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-L c:\openssl\out32\ssleay32.lib
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simplessl.c
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MSVC IDE
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--------
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If you use VC++, Borland or similar compilers. Include all lib source
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files in a static lib "project" (all .c and .h files that is).
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(you should name it libcurl or similar)
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Make the sources in the src/ drawer be a "win32 console application"
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project. Name it curl.
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For VC++ 6, there's an included Makefile.vc6 that should be possible
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to use out-of-the-box.
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Disabling Specific Protocols in Win32 builds
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--------------------------------------------
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The configure utility, unfortunately, is not available for the Windows
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environment, therefore, you cannot use the various disable-protocol
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options of the configure utility on this platform.
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However, you can use the following defines to disable specific
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protocols:
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HTTP_ONLY disables all protocols except HTTP
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CURL_DISABLE_FTP disables FTP
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CURL_DISABLE_LDAP disables LDAP
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CURL_DISABLE_TELNET disables TELNET
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CURL_DISABLE_DICT disables DICT
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CURL_DISABLE_FILE disables FILE
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If you want to set any of these defines you have the following
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possibilities:
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- Modify lib/setup.h
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- Modify lib/Makefile.vc6
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- Add defines to Project/Settings/C/C++/General/Preprocessor Definitions
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in the curllib.dsw/curllib.dsp Visual C++ 6 IDE project.
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Important static libcurl usage note
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-----------------------------------
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When building an application that uses the static libcurl library, you must
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add '-DCURL_STATICLIB' to your CFLAGS. Otherwise the linker will look for
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dynamic import symbols.
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IBM OS/2
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========
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Building under OS/2 is not much different from building under unix.
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You need:
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- emx 0.9d
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- GNU make
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- GNU patch
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- ksh
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- GNU bison
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- GNU file utilities
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- GNU sed
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- autoconf 2.13
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If you want to build with OpenSSL or OpenLDAP support, you'll need to
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download those libraries, too. Dirk Ohme has done some work to port SSL
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libraries under OS/2, but it looks like he doesn't care about emx. You'll
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find his patches on: http://come.to/Dirk_Ohme
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If during the linking you get an error about _errno being an undefined
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symbol referenced from the text segment, you need to add -D__ST_MT_ERRNO__
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in your definitions.
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If everything seems to work fine but there's no curl.exe, you need to add
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-Zexe to your linker flags.
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If you're getting huge binaries, probably your makefiles have the -g in
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CFLAGS.
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VMS
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===
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(The VMS section is in whole contributed by the friendly Nico Baggus)
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Curl seems to work with FTP & HTTP other protocols are not tested. (the
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perl http/ftp testing server supplied as testing too cannot work on VMS
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because vms has no concept of fork(). [ I tried to give it a whack, but
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thats of no use.
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SSL stuff has not been ported.
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Telnet has about the same issues as for Win32. When the changes for Win32
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are clear maybe they'll work for VMS too. The basic problem is that select
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ONLY works for sockets.
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Marked instances of fopen/[f]stat that might become a problem, especially
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for non stream files. In this regard, the files opened for writing will be
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created stream/lf and will thus be safe. Just keep in mind that non-binary
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read/wring from/to files will have a records size limit of 32767 bytes
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imposed.
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Stat to get the size of the files is again only safe for stream files &
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fixed record files without implied CC.
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-- My guess is that only allowing access to stream files is the quickest
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way to get around the most issues. Therefore all files need to to be
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checked to be sure they will be stream/lf before processing them. This is
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the easiest way out, I know. The reason for this is that code that needs to
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report the filesize will become a pain in the ass otherwise.
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Exit status.... Well we needed something done here,
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VMS has a structured exist status:
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| 3 | 2 | 1 | 0|
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|1098|765432109876|5432109876543|210|
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+----+------------+-------------+---+
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|Ctrl| Facility | Error code |sev|
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+----+------------+-------------+---+
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With the Ctrl-bits an application can tell if part or the whole message has
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already been printed from the program, DCL doesn't need to print it again.
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Facility - basically the program ID. A code assigned to the program
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the name can be fetched from external or internal message libraries
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Errorcode - the errodes assigned by the application
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Sev. - severity: Even = error, off = non error
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0 = Warning
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1 = Success
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2 = Error
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3 = Information
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4 = Fatal
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<5-7> reserved.
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This all presents itself with:
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%<FACILITY>-<SeV>-<Errorname>, <Error message>
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See also the src/curlmsg.msg file, it has the source for the messages In
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src/main.c a section is devoted to message status values, the globalvalues
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create symbols with certain values, referenced from a compiled message
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file. Have all exit function use a exit status derived from a translation
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table with the compiled message codes.
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This was all compiled with:
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Compaq C V6.2-003 on OpenVMS Alpha V7.1-1H2
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So far for porting notes as of:
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13-jul-2001
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N. Baggus
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QNX
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===
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(This section was graciously brought to us by David Bentham)
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As QNX is targeted for resource constrained environments, the QNX headers
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set conservative limits. This includes the FD_SETSIZE macro, set by default
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to 32. Socket descriptors returned within the CURL library may exceed this,
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resulting in memory faults/SIGSEGV crashes when passed into select(..)
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calls using fd_set macros.
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A good all-round solution to this is to override the default when building
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libcurl, by overriding CFLAGS during configure, example
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# configure CFLAGS='-DFD_SETSIZE=64 -g -O2'
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RISC OS
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=======
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The library can be cross-compiled using gccsdk as follows:
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CC=riscos-gcc AR=riscos-ar RANLIB='riscos-ar -s' ./configure \
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--host=arm-riscos-aof --without-random --disable-shared
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make
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where riscos-gcc and riscos-ar are links to the gccsdk tools.
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You can then link your program with curl/lib/.libs/libcurl.a
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AmigaOS
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=======
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(This section was graciously brought to us by Diego Casorran)
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To build cURL/libcurl on AmigaOS just type 'make amiga' ...
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What you need is: (not tested with others versions)
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GeekGadgets / gcc 2.95.3 (http://www.geekgadgets.org/)
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AmiTCP SDK v4.3 (http://www.aminet.net/comm/tcp/AmiTCP-SDK-4.3.lha)
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Native Developer Kit (http://www.amiga.com/3.9/download/NDK3.9.lha)
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As no ixemul.library is required you will be able to build it for
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WarpOS/PowerPC (not tested by me), as well a MorphOS version should be
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possible with no problems.
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To enable SSL support, you need a OpenSSL native version (without ixemul),
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you can find a precompiled package at http://amiga.sourceforge.net/OpenSSL/
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NetWare
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=======
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To compile curl.nlm / libcurl.nlm you need:
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- either any gcc / nlmconv, or CodeWarrior 7 PDK 4 or later.
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- gnu make and awk running on the platform you compile on;
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native Win32 versions can be downloaded from:
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http://www.gknw.com/development/prgtools/
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- recent Novell LibC SDK available from:
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http://developer.novell.com/ndk/libc.htm
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- optional zlib sources (at the moment only dynamic linking with zlib.imp);
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sources with NetWare Makefile can be obtained from:
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http://www.gknw.com/mirror/zlib/
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- optional OpenSSL sources (version 0.9.8 or later which builds with BSD);
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Set a search path to your compiler, linker and tools; on Linux make
|
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sure that the var OSTYPE contains the string 'linux'; and then type
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'make netware' from the top source directory; other tagets available
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are 'netware-ssl', 'netware-ssl-zlib', 'netware-zlib' and 'netware-ares';
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if you need other combinations you can control the build with the
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environment variables WITH_SSL, WITH_ZLIB, WITH_ARES and ENABLE_IPV6.
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I found on some Linux systems (RH9) that OS detection didnt work although
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a 'set | grep OSTYPE' shows the var present and set; I simply overwrote it
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with 'OSTYPE=linux-rh9-gnu' and the detection in the Makefile worked...
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Any help in testing appreciated!
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Builds automatically created 8 times a day from current CVS are here:
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http://www.gknw.com/mirror/curl/autobuilds/
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the status of these builds can be viewed at the autobuild table:
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http://curl.haxx.se/auto/
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CROSS COMPILE
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=============
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|
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(This section was graciously brought to us by Jim Duey, with additions by
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Dan Fandrich)
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Download and unpack the cURL package. Version should be 7.9.1 or later.
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'cd' to the new directory. (e.g. cd curl-7.12.3)
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Set environment variables to point to the cross-compile toolchain and call
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configure with any options you need. Be sure and specify the '--host' and
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'--build' parameters at configuration time. The following script is an
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example of cross-compiling for the IBM 405GP PowerPC processor using the
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toolchain from MonteVista for Hardhat Linux.
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(begin script)
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#! /bin/sh
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export PATH=$PATH:/opt/hardhat/devkit/ppc/405/bin
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export CPPFLAGS="-I/opt/hardhat/devkit/ppc/405/target/usr/include"
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export AR=ppc_405-ar
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export AS=ppc_405-as
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export LD=ppc_405-ld
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export RANLIB=ppc_405-ranlib
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export CC=ppc_405-gcc
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export NM=ppc_405-nm
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./configure --target=powerpc-hardhat-linux \
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--host=powerpc-hardhat-linux \
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--build=i586-pc-linux-gnu \
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--prefix=/opt/hardhat/devkit/ppc/405/target/usr/local \
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--exec-prefix=/usr/local
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(end script)
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You may also need to provide a parameter like '--with-random=/dev/urandom'
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to configure as it cannot detect the presence of a random number
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generating device for a target system. The '--prefix' parameter
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specifies where cURL will be installed. If 'configure' completes
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successfully, do 'make' and 'make install' as usual.
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In some cases, you may be able to simplify the above commands to as
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little as:
|
|
|
|
./configure --host=ARCH-OS
|
|
|
|
REDUCING SIZE
|
|
=============
|
|
|
|
There are a number of configure options that can be used to reduce the
|
|
size of libcurl for embedded applications where binary size is an
|
|
important factor. First, be sure to set the CFLAGS variable when
|
|
configuring with any relevant compiler optimization flags to reduce the
|
|
size of the binary. For gcc, this would mean at minimum the -Os option
|
|
and probably the -march=X option as well, e.g.:
|
|
|
|
./configure CFLAGS='-Os' ...
|
|
|
|
Be sure to specify as many --disable- and --without- flags on the configure
|
|
command-line as you can to disable all the libcurl features that you
|
|
know your application is not going to need. Besides specifying the
|
|
--disable-PROTOCOL flags for all the types of URLs your application
|
|
will not use, here are some other flags that can reduce the size of the
|
|
library:
|
|
|
|
--disable-ares (disables support for the ARES DNS library)
|
|
--disable-cookies (disables support for HTTP cookies)
|
|
--disable-crypto-auth (disables HTTP cryptographic authentication)
|
|
--disable-ipv6 (disables support for IPv6)
|
|
--disable-verbose (eliminates debugging strings and error code strings)
|
|
--enable-hidden-symbols (eliminates unneeded symbols in library)
|
|
--without-libidn (disables support for the libidn DNS library)
|
|
--without-ssl (disables support for SSL/TLS)
|
|
--without-zlib (disables support for on-the-fly decompression)
|
|
|
|
The GNU linker has a number of options to reduce the size of the libcurl
|
|
dynamic libraries on some platforms even further. Specify them by giving
|
|
the options -Wl,-Bsymbolic and -Wl,-s on the gcc command-line.
|
|
Be sure also to strip debugging symbols from your binaries after
|
|
compiling using 'strip' (or the appropriate variant if cross-compiling).
|
|
If space is really tight, you may be able to remove some unneeded
|
|
sections of the library using the -R option to objcopy (e.g. the
|
|
.comment section).
|
|
|
|
Using these techniques it is possible to create an HTTP-only shared
|
|
libcurl library for i386 Linux platforms that is less than 90 KB in
|
|
size (as of version 7.15.4).
|
|
|
|
You may find that statically linking libcurl to your application will
|
|
result in a lower total size.
|
|
|
|
|
|
PORTS
|
|
=====
|
|
This is a probably incomplete list of known hardware and operating systems
|
|
that curl has been compiled for. If you know a system curl compiles and
|
|
runs on, that isn't listed, please let us know!
|
|
|
|
- Alpha DEC OSF 4
|
|
- Alpha Digital UNIX v3.2
|
|
- Alpha FreeBSD 4.1, 4.5
|
|
- Alpha Linux 2.2, 2.4
|
|
- Alpha NetBSD 1.5.2
|
|
- Alpha OpenBSD 3.0
|
|
- Alpha OpenVMS V7.1-1H2
|
|
- Alpha Tru64 v5.0 5.1
|
|
- HP-PA HP-UX 9.X 10.X 11.X
|
|
- HP-PA Linux
|
|
- HP3000 MPE/iX
|
|
- MIPS IRIX 6.2, 6.5
|
|
- MIPS Linux
|
|
- Pocket PC/Win CE 3.0
|
|
- Power AIX 3.2.5, 4.2, 4.3.1, 4.3.2, 5.1, 5.2
|
|
- PowerPC Darwin 1.0
|
|
- PowerPC Linux
|
|
- PowerPC Mac OS 9
|
|
- PowerPC Mac OS X
|
|
- SINIX-Z v5
|
|
- Sparc Linux
|
|
- Sparc Solaris 2.4, 2.5, 2.5.1, 2.6, 7, 8, 9, 10
|
|
- Sparc SunOS 4.1.X
|
|
- StrongARM (and other ARM) RISC OS 3.1, 4.02
|
|
- StrongARM/ARM7/ARM9 Linux 2.4, 2.6
|
|
- StrongARM NetBSD 1.4.1
|
|
- Ultrix 4.3a
|
|
- i386 BeOS
|
|
- i386 DOS
|
|
- i386 Esix 4.1
|
|
- i386 FreeBSD
|
|
- i386 HURD
|
|
- i386 Linux 1.3, 2.0, 2.2, 2.3, 2.4, 2.6
|
|
- i386 NetBSD
|
|
- i386 Novell NetWare
|
|
- i386 OS/2
|
|
- i386 OpenBSD
|
|
- i386 SCO unix
|
|
- i386 Solaris 2.7
|
|
- i386 Windows 95, 98, ME, NT, 2000, XP, 2003
|
|
- i386 QNX 6
|
|
- i486 ncr-sysv4.3.03 (NCR MP-RAS)
|
|
- ia64 Linux 2.3.99
|
|
- m68k AmigaOS 3
|
|
- m68k Linux
|
|
- m68k OpenBSD
|
|
- m88k dg-dgux5.4R3.00
|
|
- s390 Linux
|
|
- XScale/PXA250 Linux 2.4
|
|
|
|
Useful URLs
|
|
===========
|
|
|
|
OpenSSL http://www.openssl.org
|
|
MingW http://www.mingw.org
|
|
OpenLDAP http://www.openldap.org
|
|
Zlib http://www.gzip.org/zlib/
|