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authorEric Fiselier <eric@efcs.ca>2014-10-17 16:32:06 +0000
committerEric Fiselier <eric@efcs.ca>2014-10-17 16:32:06 +0000
commitffe1ba2da2bd30e5e4bc723fc2368c28a687df02 (patch)
treecfb3c13fcf01d257c03d889292abbc50c123e5d4
parent3a67a2df19e40f60ca7ad772766d246866985360 (diff)
[libcxxabi] Document the standalone build's requirements on llvm-config and llvm sources.
The current documentation does not explain that the standalone build requires the LLVM sources. This patch updates the documentation to reflect this requirement and explains how to manually specify the location of the required files. git-svn-id: https://llvm.org/svn/llvm-project/libcxxabi/trunk@220049 91177308-0d34-0410-b5e6-96231b3b80d8
-rw-r--r--CMakeLists.txt4
-rw-r--r--www/index.html10
2 files changed, 13 insertions, 1 deletions
diff --git a/CMakeLists.txt b/CMakeLists.txt
index 6815b0d..494b18d 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -46,7 +46,9 @@ if (CMAKE_SOURCE_DIR STREQUAL CMAKE_CURRENT_SOURCE_DIR)
set(LLVM_CMAKE_PATH "${LLVM_BINARY_DIR}/share/llvm/cmake")
set(LLVM_LIT_PATH "${LLVM_PATH}/utils/lit/lit.py")
else()
- message(FATAL_ERROR "llvm-config not found and LLVM_MAIN_SRC_DIR not defined")
+ message(FATAL_ERROR "llvm-config not found and LLVM_MAIN_SRC_DIR not defined. "
+ "Reconfigure with -DLLVM_CONFIG=path/to/llvm-config "
+ "or -DLLVM_PATH=path/to/llvm-source-root.")
endif()
if(EXISTS ${LLVM_CMAKE_PATH})
diff --git a/www/index.html b/www/index.html
index 197e717..b7b66d8 100644
--- a/www/index.html
+++ b/www/index.html
@@ -96,6 +96,16 @@
linux you may need -DCMAKE_C_COMPILER=clang -DCMAKE_CXX_COMPILER=clang++</code></li>
<li><code>make</code></li>
</ul>
+ <p> By default CMake uses <code>llvm-config</code> to locate the required
+ LLVM sources. If CMake cannot find <code>llvm-config</code> then you must
+ configure CMake using either of the following options.
+ </p>
+ <ul>
+ <li><code>-DLLVM_CONFIG=path/to/llvm-config</code></li>
+ <li><code>-DLLVM_PATH=path/to/llvm-source-root</code></li>
+ </ul>
+
+ </p>
<p>To run the tests:</p>
<ul>