Get libevent building and linking in base_unittests in the Mac SCons build:

* Call the $LIBEVENT_DIR/SConscript file on both Linux and Mac.
* Add generation of the config.h file.
* Modify the libevent_prebuild.sh script so SCons can pass in the input
  file name (because SCons executes things from top of tree) but the
  script still defaults to what XCode wants.
* Only build epoll.c and epoll_sub.c on Linux.
* Only build kqueue.c on Mac.
* Add -framework AppKit to the link lines.
* Add -fobjc-gc to Objective C compilation.
* Add message_pump_mac.mm to the base input file list on Mac.
* Build message_pump_libevent.cc on for base on both Linux and Mac.
* Link against -levent on both Linux and Mac.
Review URL: http://codereview.chromium.org/4254

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@2555 0039d316-1c4b-4281-b951-d872f2087c98

2 files changed, 37 insertions, 9 deletions

diff --git a/third_party/libevent/SConscript b/third_party/libevent/SConscript
index 34ead9e..3d1eb9b 100644
--- a/third_party/libevent/SConscript
+++ b/third_party/libevent/SConscript
@@ -15,29 +15,41 @@ env.Append(
     ],
 )
 
+if env['PLATFORM'] == 'darwin':
+  env.Prepend(
+      CPPPATH = [
+          '$LIBEVENT_DIR/generated/',
+      ],
+  )
+  env['ENV']['CONFIGURATION_TEMP_DIR'] = env.Dir('$LIBEVENT_DIR').abspath
+  env.Command('$LIBEVENT_DIR/generated/config.h',
+              ['libevent.xcodeproj/libevent_prebuild.sh', 'config.h.in'],
+              'sh ${SOURCES[0]} ${SOURCES[1]}')
+    
+
+if env['PLATFORM'] == 'posix':
+  env.Prepend(
+      CPPPATH = [
+          '$LIBEVENT_DIR/linux/',
+      ],
+  )
+
 env.Prepend(
     CPPPATH = [
         '$LIBEVENT_DIR',
         '$LIBEVENT_DIR/compat/',
-        '$LIBEVENT_DIR/linux/',
     ],
 )
 
-
 input_files = [
     'buffer.c',
-    #'devpoll.c',
-    'epoll.c',
-    'epoll_sub.c',
     'evbuffer.c',
     'evdns.c',
     'event.c',
     'event_tagging.c',
-    #'evport.c',
     'evrpc.c',
     'evutil.c',
     'http.c',
-    #'kqueue.c',
     'log.c',
     'poll.c',
     'select.c',
@@ -45,5 +57,16 @@ input_files = [
     'strlcpy.c',
 ]
 
+if env['PLATFORM'] == 'posix':
+  input_files.extend([
+      'epoll.c',
+      'epoll_sub.c',
+  ])
+
+if env['PLATFORM'] == 'darwin':
+  input_files.extend([
+      'kqueue.c',
+  ])
+
 
-env.ChromeStaticLibrary('libevent', input_files)
+env.ChromeStaticLibrary('event', input_files)
diff --git a/third_party/libevent/libevent.xcodeproj/libevent_prebuild.sh b/third_party/libevent/libevent.xcodeproj/libevent_prebuild.sh
index 38c7da3..6e6c48c 100755
--- a/third_party/libevent/libevent.xcodeproj/libevent_prebuild.sh
+++ b/third_party/libevent/libevent.xcodeproj/libevent_prebuild.sh
@@ -11,6 +11,11 @@ GENERATED_DIR="${CONFIGURATION_TEMP_DIR}/generated"
 # Generate config.h the same way that "sh configure" would
 mkdir -p "${GENERATED_DIR}"
 
+CONFIG_H_IN="$1"
+if test "X${CONFIG_H_IN}" = "X"; then
+  CONFIG_H_IN="config.h.in"
+fi
+
 CONFIG_H="${GENERATED_DIR}/config.h"
 sed -e s/'^#undef DNS_USE_GETTIMEOFDAY_FOR_ID$'/'#define DNS_USE_GETTIMEOFDAY_FOR_ID 1'/ \
     -e s/'^#undef HAVE_DLFCN_H$'/'#define HAVE_DLFCN_H 1'/ \
@@ -76,7 +81,7 @@ sed -e s/'^#undef DNS_USE_GETTIMEOFDAY_FOR_ID$'/'#define DNS_USE_GETTIMEOFDAY_FO
     -e s/'^#undef TIME_WITH_SYS_TIME$'/'#define TIME_WITH_SYS_TIME 1'/ \
     -e s/'^#undef VERSION$'/'#define VERSION "1.4.7-stable"'/ \
     -e s@'^\(#undef .*\)$'@'/* \1 */'@ \
-  < config.h.in \
+  < "${CONFIG_H_IN}" \
   > "${CONFIG_H}.new"
 
 if ! diff -q "${CONFIG_H}.new" "${CONFIG_H}" >& /dev/null ; then