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<HTML><!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"><!-- Created on September, 12 2004 by texi2html 1.64 --><!-- Written by: Lionel Cons <Lionel.Cons@cern.ch> (original author) Karl Berry <karl@freefriends.org> Olaf Bachmann <obachman@mathematik.uni-kl.de> and many others.Maintained by: Olaf Bachmann <obachman@mathematik.uni-kl.de>Send bugs and suggestions to <texi2html@mathematik.uni-kl.de> --><HEAD><TITLE>Autoconf, Automake, and Libtool: Linking against Libtool Libraries with Automake</TITLE><META NAME="description" CONTENT="Autoconf, Automake, and Libtool: Linking against Libtool Libraries with Automake"><META NAME="keywords" CONTENT="Autoconf, Automake, and Libtool: Linking against Libtool Libraries with Automake"><META NAME="resource-type" CONTENT="document"><META NAME="distribution" CONTENT="global"><META NAME="Generator" CONTENT="texi2html 1.64"><script language="Javascript"><!-- // Check the browser version. function checkVersion() { if (navigator.appVersion.charAt(0)>=3) return true; 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You can dothis easily with <CODE>automake</CODE> by using the program's qualified<SAMP>`LDADD'</SAMP> macro:</P><P><TABLE width=100%><tr><td> </td><td class=example bgcolor=#6688aa><br><pre>bin_PROGRAMS = shellshell_SOURCES = shell.c token.lshell_LDADD = libshell.la</pre></td></tr></table></P><P>This will choose either the static or shared archive from the<TT>`libshell.la'</TT> Libtool library depending on the target host and anyLibtool mode switches mentioned in the <TT>`Makefile.am'</TT>, or passed to<CODE>configure</CODE>. The chosen archive will be linked with any objectsgenerated from the listed sources to make an executable. Note that theexecutable itself is a hidden file, and that in its place<CODE>libtool</CODE> creates a wrapper script, See section <A HREF="autobook_79.html#SEC79">10.5 Executing Uninstalled Binaries</A>.</P><P>As with the Libtool libraries, you can pass additional switches for the<CODE>libtool</CODE> invocation in the qualified <SAMP>`LDFLAGS'</SAMP> macros tocontrol how the <CODE>shell</CODE> executable is linked:</P><P><DL COMPACT><DT><SAMP>`-all-static'</SAMP><DD>Always choose static libraries where possible, and try to create acompletely statically linked executable.<P><DT><SAMP>`-no-fast-install'</SAMP><DD>If you really want to use this flag on some targets, you can pass it inan <SAMP>`LDFLAGS'</SAMP> macro. This is not overridden by the<CODE>configure</CODE> <SAMP>`--enable-fast-install'</SAMP> switch. Executablesbuilt with this flag will not need relinking to be executed from thebuild tree on platforms which might have otherwise required it.<P><DT><SAMP>`-no-install'</SAMP><DD>You should use this option for any executables which are used only fortesting, or for generating other files and are consequently neverinstalled. By specifying this option, you are telling Libtool that theexecutable it links will only ever be executed from where it is built inthe build tree. Libtool is usually able to considerably speed up thelink process for such executables.<P><DT><SAMP>`-static'</SAMP><DD>This switch is similar to <SAMP>`-all-static'</SAMP>, except that it applies toonly the uninstalled Libtool libraries in the build tree. Wherepossible the static archive from these libraries is used, but thedefault linking mode is used for libraries which are already installed.</DL><P>When debugging an executable, for example, it can be useful totemporarily use:</P><P><TABLE width=100%><tr><td> </td><td class=example bgcolor=#6688aa><br><pre>shell_LDFLAGS = -all-static</pre></td></tr></table></P><P><BLOCKQUOTE>You can pass Libtool link options to all of the targets in a givendirectory by using the unadorned <SAMP>`LDFLAGS'</SAMP> macro:<P><TABLE width=100%><tr><td> </td><td class=example bgcolor=#6688aa><br><pre>LDFLAGS = -static</pre></td></tr></table></P><P>This is best reserved for directories which have targets of the sametype, all Libtool libraries or all executables for instance. Thetechnique still works in a mixed target type directory, and<CODE>libtool</CODE> will ignore switches which don't make sense forparticular targets. It is less maintainable, and makes it harder tounderstand what is going on if you do that though.</BLOCKQUOTE><P><A NAME="Using libtoolize"></A></TR></TABLE><BR> <FONT SIZE="-1">This document was generatedby <I>Gary V. Vaughan</I> on <I>September, 12 2004</I>using <A HREF="http://www.mathematik.uni-kl.de/~obachman/Texi2html"><I>texi2html</I></A></BODY></HTML>⌨️ 快捷键说明
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