opt-alive.sh --verbose to stderr, hints on building with Xcode (#1011)

AliveToolkit · Feb 7, 2024 · 77af924 · 77af924
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diff --git a/README.md b/README.md
@@ -69,6 +69,12 @@ LLVM can be built in the following way.
 * `BUILD_SHARED_LIBS` may not be necessary, and for LLVM forks not normally
 built with the option, may interfere with CMake files’ use of `USEDLIBS` and
 `LLVMLIBS`, and perhaps `dd_llvm_target`.
+* To build with Xcode rather than Ninja, replace `-GNinja` with `-GXcode` in
+the `cmake` step below, and append `-DLLVM_MAIN_SRC_DIR=$LLVM2_HOME/llvm`. 
+  * It may be necessary to disable warnings for “Implicit Conversion to 32 Bit
+  Type” in the project build settings.
+  * Xcode may place `tv.dylib` in a different location; a symbolic link from the
+actual location to that in the resultant error message may help.
 
 ```
 cd $LLVM2_HOME

diff --git a/scripts/opt-alive.sh.in b/scripts/opt-alive.sh.in
@@ -86,8 +86,8 @@ fi
 COMMAND="$TIMEOUT @LLVM_BINARY_DIR@/bin/opt -load=@CMAKE_BINARY_DIR@/tv/$TV_SHAREDLIB  $NPM_PLUGIN -tv-exit-on-error $TV $OPT_ARGS $TV $TV_SMT_TO $TV_REPORT_DIR $TV_SMT_STATS"
 
 if [[ $VERBOSE == 1 ]]; then
-  echo COMMAND: $COMMAND
-  echo
+  echo COMMAND: $COMMAND >&2
+  echo >&2
 fi
 
 $COMMAND