<ol>
<li><a href="#cautionarynote">A Cautionary Note</a>
- <li><a href="#instructions">Instructions</a>
- <li><a href="#license">License Information</a>
+ <ul>
+ <li><a href="#cygwin">Building under Cygwin</a></li>
+ </ul>
+ </li>
+ <li><a href="#instructions">Instructions</a></li>
+ <li><a href="#license">License Information</a></li>
</ol>
<div class="doc_author">
- <p>Written by Brian R. Gaeke</p>
+ <p>Written by Brian R. Gaeke and
+ <a href="http://nondot.org/sabre">Chris Lattner</a></p>
</div>
<!-- *********************************************************************** -->
<p>We welcome patches to help make this process simpler.</p>
</div>
+<!--=========================================================================-->
+<div class="doc_subsection">
+ <a name="cygwin">Building under Cygwin</a>
+</div>
+<!--=========================================================================-->
+
+<div class="doc_text">
+<p>If you are building LLVM and the C front-end under Cygwin, please note that
+the LLVM and GCC makefiles do not correctly handle spaces in paths. To deal
+with this issue, make sure that your LLVM and GCC source and build trees are
+located in a top-level directory (like <tt>/cygdrive/c/llvm</tt> and
+<tt>/cygdrive/c/llvm-cfrontend</tt>), not in a directory that contains a space
+(which includes your "home directory", because it lives under the "Documents
+and Settings" directory). We welcome patches to fix this issue.
+</p>
+</div>
+
<!-- *********************************************************************** -->
<div class="doc_section">
<a name="instructions">Instructions</a>
<pre>
% cd llvm
% ./configure [options...]
- % gmake tools-only
+ % gmake
</pre>
- <p>The use of the non-default target "tools-only" means that the
- LLVM tools and libraries will build, and the binaries will be
- deposited in llvm/tools/Debug, but the runtime (bytecode)
- libraries will not build.</p></li>
+ <p>This will build all of the LLVM tools and libraries, but you will see
+ warnings about missing the C front-end (certain runtime libraries can't
+ be built without it). Ignore these warnings for now.</p></li>
<li><p>Add the directory containing the tools to your PATH.</p>
<pre>
<li><p>Unpack the C/C++ front-end source into cfrontend/src.</p></li>
-<li><p>Edit src/configure. Change the first line (starting w/ #!) to
- contain the correct full pathname of sh.</p></li>
-
<li><p>Make "build" and "install" directories as siblings of the "src"
tree.</p>
<pre>
% set CFEINSTALL = `pwd`/install
</pre></li>
+
<li><p>Configure, build, and install the C front-end:</p>
<p>
-<b>Linux/x86:</b>
-<br>
-<b>MacOS X/PowerPC:</b>
+<b>Linux/x86:</b><br>
+<b>MacOS X/PowerPC</b> (requires dlcompat library):
</p>
<pre>
% cd build
% ../src/configure --prefix=$CFEINSTALL --disable-threads --disable-nls --disable-shared \
--enable-languages=c,c++
- % gmake all-gcc
+ % gmake
% setenv LLVM_LIB_SEARCH_PATH `pwd`/gcc
% gmake all; gmake install
</pre>
-<p>
-<b>Solaris/SPARC:</b>
-</p>
+<p><b>Cygwin/x86:</b></p>
+
+<pre>
+ % cd build
+ % ../src/configure --prefix=$CFEINSTALL --disable-threads --disable-nls --disable-shared \
+ --enable-languages=c,c++ --disable-c-mbchar
+ % gmake
+ % setenv LLVM_LIB_SEARCH_PATH `pwd`/gcc
+ % gmake all; gmake install
+</pre>
+
+<p><b>Solaris/SPARC:</b></p>
<p>
For Solaris/SPARC, LLVM only supports the SPARC V9. Therefore, the
% ../src/configure --prefix=$CFEINSTALL --disable-threads --disable-nls \
--disable-shared --enable-languages=c,c++ --host=sparcv9-sun-solaris2.8 \
--disable-c-mbchar
- % gmake all-gcc
+ % gmake
% setenv LLVM_LIB_SEARCH_PATH `pwd`/gcc
% gmake all; gmake install
</pre>
</ul>
</li>
-<li><p>Go back into the LLVM source tree proper. Edit Makefile.config
-to redefine <code>LLVMGCCDIR</code> to the full pathname of the
-<code>$CFEINSTALL</code> directory, which is the directory you just
-installed the C front-end into. (The ./configure script is likely to
-have set this to a directory which does not exist on your system.)</p></li>
+<li><p>Go back into the LLVM source tree proper. Rerun configure, using
+the <code>--with-llvmgccdir=$CFEINSTALL</code> option to specify the path
+to the newly built C front-end.</p></li>
<li><p>If you edited header files during the C/C++ front-end build as
described in "Fix 1" above, you must now copy those header files from
libgcc.a library, which you can find by running
<code>$CFEINSTALL/bin/gcc --print-libgcc-file-name</code>.)</p></li>
-<li><p>Build and install the runtime (bytecode) libraries by running:</p>
+<li><p>Rebuild your CVS tree. This shouldn't cause the whole thing to be
+ rebuilt, but it should build the runtime libraries. After the tree is
+ built, install the runtime libraries into your C front-end build tree.
+ These are the commands you need.</p>
<pre>
- % gmake -C runtime
+ % gmake
% mkdir $CFEINSTALL/bytecode-libs
% gmake -C runtime install-bytecode
% setenv LLVM_LIB_SEARCH_PATH $CFEINSTALL/bytecode-libs
projects / oota-llvm.git / blobdiff