build-all: Add an --llvm-only option

Author: mstorsjo

build-all.sh

@@ -73,6 +73,9 @@ while [ $# -gt 0 ]; do
     --clean-runtimes)
         CLEAN_RUNTIMES=1
         ;;
+    --llvm-only)
+        LLVM_ONLY=1
+        ;;
     *)
         if [ -n "$PREFIX" ]; then
             echo Unrecognized parameter $1
@@ -84,7 +87,7 @@ while [ $# -gt 0 ]; do
     shift
 done
 if [ -z "$PREFIX" ]; then
-    echo "$0 [--host-clang[=clang]] [--enable-asserts] [--disable-dylib] [--with-clang] [--thinlto] [--full-llvm] [--disable-lldb] [--disable-lldb-mi] [--disable-clang-tools-extra] [--host=triple] [--with-default-win32-winnt=0x601] [--with-default-msvcrt=ucrt] [--enable-cfguard|--disable-cfguard] [--no-runtimes] [--no-tools] [--wipe-runtimes] [--clean-runtimes] dest"
+    echo "$0 [--host-clang[=clang]] [--enable-asserts] [--disable-dylib] [--with-clang] [--thinlto] [--full-llvm] [--disable-lldb] [--disable-lldb-mi] [--disable-clang-tools-extra] [--host=triple] [--with-default-win32-winnt=0x601] [--with-default-msvcrt=ucrt] [--enable-cfguard|--disable-cfguard] [--no-runtimes] [--llvm-only] [--no-tools] [--wipe-runtimes] [--clean-runtimes] dest"
     exit 1
 fi
 
@@ -109,6 +112,9 @@ if [ -z "$NO_TOOLS" ]; then
             ./strip-llvm.sh $PREFIX $HOST_ARGS
         fi
     fi
+    if [ -n "$LLVM_ONLY" ]; then
+        exit 0
+    fi
     ./install-wrappers.sh $PREFIX $HOST_ARGS ${HOST_CLANG:+--host-clang=$HOST_CLANG}
     ./build-mingw-w64-tools.sh $PREFIX $HOST_ARGS
 fi