Steps towards getting Bazel compiling on Darwin

compile.sh

@@ -31,28 +31,33 @@ darwin)
   DYNAMIC_EXT="dylib"
   REALTIME_LDFLAGS=""
   MD5SUM="md5"
+  JAVA_HOME="${JAVA_HOME:-$(/usr/libexec/java_home)}"
   ;;
 linux)
   ARCHIVE_CFLAGS=""
   ARCHIVE_LDFLAGS=""
   DYNAMIC_EXT="so"
   REALTIME_LDFLAGS="-lrt"
   MD5SUM="md5sum"
+  JAVA_HOME="${JAVA_HOME:-$(readlink -f $(which javac) | sed "s_/bin/javac__")}"
   ;;
 esac
 
+# TODO: CC target architecture needs to match JAVA_HOME.
+JAVAC="${JAVA_HOME}/bin/javac"
+
 # Compile .proto files using protoc
 PROTO_FILES=(
 src/main/protobuf/build.proto
 src/main/protobuf/extra_actions.proto
 src/main/protobuf/testing_api.proto
 )
 
-# TODO: CC target architecture needs to match JAVA_HOME.
-
-# JAVA_HOME must point to a Java 7 installation.
-JAVA_HOME=${JAVA_HOME:-$(readlink -f $(which javac) | sed "s_/bin/javac__")}
-JAVAC="${JAVA_HOME}/bin/javac"
+# To get protoc for darwin:
+# grab and untar https://protobuf.googlecode.com/files/protobuf-2.5.0.tar.bz2
+# ./configure CC=clang CXX=clang++ CXXFLAGS='-std=c++11 -stdlib=libc++ -O3 -g' LDFLAGS='-stdlib=libc++' LIBS="-lc++ -lc++abi"
+# make
+# sudo make install
 PROTOC=${PROTOC:-protoc}
 CC=${CC:-g++}
 

src/main/cpp/blaze.cc

@@ -245,12 +245,6 @@ static vector<string> GetArgumentArray() {
   string heap_crash_path = globals->options.output_base;
   result.push_back("-XX:HeapDumpPath=" + heap_crash_path);
 
-  // Override conservative defaults which allow GC thrashing to last for too
-  // long.
-  result.push_back("-XX:GCTimeLimit=85");  // Default is 98%.
-  result.push_back("-XX:GCHeapFreeLimit=10");  // Default is 2%.
-  result.push_back("-XX:+CMSUseGCOverheadLimit");  // Include CMS overhead.
-
   result.push_back("-Xverify:none");
 
   // Add JVM arguments particular to building blaze64 and particular JVM
@@ -263,7 +257,7 @@ static vector<string> GetArgumentArray() {
                                                  "_embedded_binaries");
   bool first = true;
   for (const auto& it : globals->extracted_binaries) {
-    if (blaze_util::ends_with(it, ".so")) {
+    if (blaze::IsSharedLibrary(it)) {
       if (!first) {
         java_library_path += ":";
       }

src/main/cpp/blaze_util_darwin.cc

@@ -20,6 +20,7 @@
 #include "blaze_exit_code.h"
 #include "blaze_util.h"
 #include "blaze_util_platform.h"
+#include "util/strings.h"
 
 namespace blaze {
 
@@ -74,4 +75,8 @@ string GetProcessCWD(int pid) {
   return string(info.pvi_cdir.vip_path);
 }
 
+bool IsSharedLibrary(std::string filename) {
+    return blaze_util::ends_with(filename, ".dylib");
+}
+
 }   // namespace blaze.

src/main/cpp/blaze_util_linux.cc

@@ -20,6 +20,7 @@
 #include "blaze_exit_code.h"
 #include "blaze_util_platform.h"
 #include "blaze_util.h"
+#include "util/strings.h"
 
 namespace blaze {
 
@@ -118,4 +119,8 @@ string GetProcessCWD(int pid) {
   return string(server_cwd);
 }
 
+bool IsSharedLibrary(std::string filename) {
+    return blaze_util::ends_with(filename, ".so");
+}
+
 }  // namespace blaze

src/main/cpp/blaze_util_platform.h

@@ -44,6 +44,8 @@ void SetScheduling(bool batch_cpu_scheduling, int io_nice_level);
 // Returns the cwd for a process.
 std::string GetProcessCWD(int pid);
 
+bool IsSharedLibrary(std::string filename);
+
 }  // namespace blaze
 
 #endif  // DEVTOOLS_BLAZE_MAIN_BLAZE_UTIL_PLATFORM_H_