diff --git a/.travis.yml b/.travis.yml
index 409c870e796..974ef93d3f5 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -20,12 +20,12 @@ matrix:
     #- env: GODOT_TARGET=windows TOOLS=yes
     #  os: linux
     #  compiler: gcc
+    - env: GODOT_TARGET=android TOOLS=no
+      os: linux
+      compiler: gcc
     - env: GODOT_TARGET=osx TOOLS=yes
       os: osx
       compiler: clang
-    #- env: GODOT_TARGET=android TOOLS=no
-    #  os: osx
-    #  compiler: clang
     #- env: GODOT_TARGET=iphone TOOLS=no
     #  os: osx
     #  compiler: clang
@@ -61,15 +61,29 @@ addons:
       # For style checks.
       - clang-format-3.9
 
-before_script:
+install:
+  - if [ "$TRAVIS_OS_NAME" = "linux" ] && [ "$GODOT_TARGET" = "android" ]; then
+      misc/travis/android-tools-linux.sh;
+    fi
   - if [ "$TRAVIS_OS_NAME" = "osx" ]; then
-      brew update; brew install scons ccache;
-      export PATH="/usr/local/opt/ccache/libexec:$PATH";
+      misc/travis/scons-local-osx.sh;
+      misc/travis/ccache-osx.sh;
     fi
   - if [ "$TRAVIS_OS_NAME" = "osx" ] && [ "$GODOT_TARGET" = "android" ]; then
-      brew update; brew install -v android-sdk;
-      brew install -v android-ndk | grep -v "inflating:" | grep -v "creating:";
-      export ANDROID_HOME=/usr/local/opt/android-sdk; export ANDROID_NDK_ROOT=/usr/local/opt/android-ndk;
+      misc/travis/android-tools-osx.sh;
+    fi
+
+before_script:
+  - if [ "$TRAVIS_OS_NAME" = "linux" ]; then
+      export CCACHE="/usr/bin/ccache";
+    fi
+  - if [ "$TRAVIS_OS_NAME" = "osx" ]; then
+      export CCACHE="/usr/local/bin/ccache";
+      export PATH="/usr/local/opt/ccache/libexec:$PATH";
+    fi
+  - if [ "$GODOT_TARGET" = "android" ]; then
+      export ANDROID_HOME=$TRAVIS_BUILD_DIR/godot-dev/build-tools/android-sdk;
+      export ANDROID_NDK_ROOT=$TRAVIS_BUILD_DIR/godot-dev/build-tools/android-ndk;
     fi
 
 script:
@@ -78,3 +92,10 @@ script:
     else
       scons -j2 CC=$CC CXX=$CXX platform=$GODOT_TARGET TOOLS=$TOOLS verbose=yes progress=no;
     fi
+
+after_success:
+  - if [ "$STATIC_CHECKS" != "yes" ] && [ $(command -v ccache) ]; then
+      which ccache;
+      ccache --version | grep "ccache version";
+      ccache -s;
+    fi;
diff --git a/misc/travis/android-tools-linux.sh b/misc/travis/android-tools-linux.sh
new file mode 100755
index 00000000000..04fb2eee210
--- /dev/null
+++ b/misc/travis/android-tools-linux.sh
@@ -0,0 +1,107 @@
+#!/bin/bash
+
+# SDK
+# https://dl.google.com/android/repository/sdk-tools-linux-3859397.zip
+# SHA-256 444e22ce8ca0f67353bda4b85175ed3731cae3ffa695ca18119cbacef1c1bea0
+# latest version available here: https://developer.android.com/studio/index.html
+
+# NDK
+# https://dl.google.com/android/repository/android-ndk-r15c-linux-x86_64.zip
+# SHA-1 0bf02d4e8b85fd770fd7b9b2cdec57f9441f27a2
+# latest version available here: https://developer.android.com/ndk/downloads/index.html
+
+BASH_RC=~/.bashrc
+GODOT_BUILD_TOOLS_PATH=./godot-dev/build-tools
+mkdir -p $GODOT_BUILD_TOOLS_PATH
+cd $GODOT_BUILD_TOOLS_PATH
+
+ANDROID_BASE_URL=http://dl.google.com/android/repository
+
+ANDROID_SDK_RELEASE=3859397
+ANDROID_SDK_DIR=android-sdk
+ANDROID_SDK_FILENAME=sdk-tools-linux-$ANDROID_SDK_RELEASE.zip
+ANDROID_SDK_URL=$ANDROID_BASE_URL/$ANDROID_SDK_FILENAME
+ANDROID_SDK_PATH=$GODOT_BUILD_TOOLS_PATH/$ANDROID_SDK_DIR
+ANDROID_SDK_SHA256=444e22ce8ca0f67353bda4b85175ed3731cae3ffa695ca18119cbacef1c1bea0
+
+ANDROID_NDK_RELEASE=r15c
+ANDROID_NDK_DIR=android-ndk
+ANDROID_NDK_FILENAME=android-ndk-$ANDROID_NDK_RELEASE-linux-x86_64.zip
+ANDROID_NDK_URL=$ANDROID_BASE_URL/$ANDROID_NDK_FILENAME
+ANDROID_NDK_PATH=$GODOT_BUILD_TOOLS_PATH/$ANDROID_NDK_DIR
+ANDROID_NDK_SHA1=0bf02d4e8b85fd770fd7b9b2cdec57f9441f27a2
+
+echo
+echo "Download and install Android development tools ..."
+echo
+
+if [ ! -e $ANDROID_SDK_FILENAME ]; then
+  echo "Downloading: Android SDK ..."
+  curl -L -O $ANDROID_SDK_URL
+else
+  echo $ANDROID_SDK_SHA1 $ANDROID_SDK_FILENAME > $ANDROID_SDK_FILENAME.sha1
+  if [ $(shasum -a 256 < $ANDROID_SDK_FILENAME | awk '{print $1;}') != $ANDROID_SDK_SHA1 ]; then
+    echo "Downloading: Android SDK ..."
+    curl -L -O $ANDROID_SDK_URL
+  fi
+fi
+
+if [ ! -d $ANDROID_SDK_DIR ]; then
+  echo "Extracting: Android SDK ..."
+  unzip -qq $ANDROID_SDK_FILENAME -d $ANDROID_SDK_DIR
+  echo
+fi
+
+if [ ! -e $ANDROID_NDK_FILENAME ]; then
+  echo "Downloading: Android NDK ..."
+  curl -L -O $ANDROID_NDK_URL
+else
+  echo $ANDROID_NDK_MD5 $ANDROID_NDK_FILENAME > $ANDROID_NDK_FILENAME.md5
+  if [ $(shasum -a 1 < $ANDROID_NDK_FILENAME | awk '{print $1;}') != $ANDROID_NDK_SHA1 ]; then
+    echo "Downloading: Android NDK ..."
+    curl -L -O $ANDROID_NDK_URL
+  fi
+fi
+
+if [ ! -d $ANDROID_NDK_DIR ]; then
+  echo "Extracting: Android NDK ..."
+  unzip -qq $ANDROID_NDK_FILENAME
+  mv android-ndk-$ANDROID_NDK_RELEASE $ANDROID_NDK_DIR
+  echo
+fi
+
+echo "Installing: Android Tools ..."
+#$ANDROID_SDK_DIR/tools/bin/sdkmanager --all
+yes | $ANDROID_SDK_DIR/tools/bin/sdkmanager --licenses > /dev/null
+$ANDROID_SDK_DIR/tools/bin/sdkmanager 'tools' > /dev/null
+$ANDROID_SDK_DIR/tools/bin/sdkmanager 'platform-tools' > /dev/null
+$ANDROID_SDK_DIR/tools/bin/sdkmanager 'build-tools;26.0.2' > /dev/null
+echo
+
+EXPORT_VAL="export ANDROID_HOME=$ANDROID_SDK_PATH"
+if ! grep -q "^$EXPORT_VAL" $BASH_RC; then
+        echo $EXPORT_VAL >> $BASH_RC
+fi
+#eval $EXPORT_VAL
+
+EXPORT_VAL="export ANDROID_NDK_ROOT=$ANDROID_NDK_PATH"
+if ! grep -q "^$EXPORT_VAL" $BASH_RC; then
+        echo $EXPORT_VAL >> $BASH_RC
+fi
+#eval $EXPORT_VAL
+
+EXPORT_VAL="export PATH=$PATH:$ANDROID_SDK_PATH/tools"
+if ! grep -q "^export PATH=.*$ANDROID_SDK_PATH/tools.*" $BASH_RC; then
+        echo $EXPORT_VAL >> $BASH_RC
+fi
+#eval $EXPORT_VAL
+
+EXPORT_VAL="export PATH=$PATH:$ANDROID_SDK_PATH/tools/bin"
+if ! grep -q "^export PATH=.*$ANDROID_SDK_PATH/tools/bin.*" $BASH_RC; then
+        echo $EXPORT_VAL >> $BASH_RC
+fi
+#eval $EXPORT_VAL
+
+echo
+echo "Done!"
+echo
diff --git a/misc/travis/android-tools-osx.sh b/misc/travis/android-tools-osx.sh
new file mode 100755
index 00000000000..96125a3a3f7
--- /dev/null
+++ b/misc/travis/android-tools-osx.sh
@@ -0,0 +1,107 @@
+#!/bin/bash
+
+# SDK
+# https://dl.google.com/android/repository/sdk-tools-darwin-3859397.zip
+# SHA-256 4a81754a760fce88cba74d69c364b05b31c53d57b26f9f82355c61d5fe4b9df9
+# latest version available here: https://developer.android.com/studio/index.html
+
+# NDK
+# https://dl.google.com/android/repository/android-ndk-r15c-darwin-x86_64.zip
+# SHA-1 ea4b5d76475db84745aa8828000d009625fc1f98
+# latest version available here: https://developer.android.com/ndk/downloads/index.html
+
+BASH_RC=~/.bashrc
+GODOT_BUILD_TOOLS_PATH=./godot-dev/build-tools
+mkdir -p $GODOT_BUILD_TOOLS_PATH
+cd $GODOT_BUILD_TOOLS_PATH
+
+ANDROID_BASE_URL=http://dl.google.com/android/repository
+
+ANDROID_SDK_RELEASE=3859397
+ANDROID_SDK_DIR=android-sdk
+ANDROID_SDK_FILENAME=sdk-tools-darwin-$ANDROID_SDK_RELEASE.zip
+ANDROID_SDK_URL=$ANDROID_BASE_URL/$ANDROID_SDK_FILENAME
+ANDROID_SDK_PATH=$GODOT_BUILD_TOOLS_PATH/$ANDROID_SDK_DIR
+ANDROID_SDK_SHA256=4a81754a760fce88cba74d69c364b05b31c53d57b26f9f82355c61d5fe4b9df9
+
+ANDROID_NDK_RELEASE=r15c
+ANDROID_NDK_DIR=android-ndk
+ANDROID_NDK_FILENAME=android-ndk-$ANDROID_NDK_RELEASE-darwin-x86_64.zip
+ANDROID_NDK_URL=$ANDROID_BASE_URL/$ANDROID_NDK_FILENAME
+ANDROID_NDK_PATH=$GODOT_BUILD_TOOLS_PATH/$ANDROID_NDK_DIR
+ANDROID_NDK_SHA1=ea4b5d76475db84745aa8828000d009625fc1f98
+
+echo
+echo "Download and install Android development tools ..."
+echo
+
+if [ ! -e $ANDROID_SDK_FILENAME ]; then
+  echo "Downloading: Android SDK ..."
+  curl -L -O $ANDROID_SDK_URL
+else
+  echo $ANDROID_SDK_SHA1 $ANDROID_SDK_FILENAME > $ANDROID_SDK_FILENAME.sha1
+  if [ $(shasum -a 256 < $ANDROID_SDK_FILENAME | awk '{print $1;}') != $ANDROID_SDK_SHA1 ]; then
+    echo "Downloading: Android SDK ..."
+    curl -L -O $ANDROID_SDK_URL
+  fi
+fi
+
+if [ ! -d $ANDROID_SDK_DIR ]; then
+  echo "Extracting: Android SDK ..."
+  mkdir -p $ANDROID_SDK_DIR && tar -xf $ANDROID_SDK_FILENAME -C $ANDROID_SDK_DIR
+  echo
+fi
+
+if [ ! -e $ANDROID_NDK_FILENAME ]; then
+  echo "Downloading: Android NDK ..."
+  curl -L -O $ANDROID_NDK_URL
+else
+  echo $ANDROID_NDK_MD5 $ANDROID_NDK_FILENAME > $ANDROID_NDK_FILENAME.md5
+  if [ $(shasum -a 1 < $ANDROID_NDK_FILENAME | awk '{print $1;}') != $ANDROID_NDK_SHA1 ]; then
+    echo "Downloading: Android NDK ..."
+    curl -L -O $ANDROID_NDK_URL
+  fi
+fi
+
+if [ ! -d $ANDROID_NDK_DIR ]; then
+  echo "Extracting: Android NDK ..."
+  tar -xf $ANDROID_NDK_FILENAME
+  mv android-ndk-$ANDROID_NDK_RELEASE $ANDROID_NDK_DIR
+  echo
+fi
+
+echo "Installing: Android Tools ..."
+#$ANDROID_SDK_DIR/tools/bin/sdkmanager --all
+yes | $ANDROID_SDK_DIR/tools/bin/sdkmanager --licenses > /dev/null
+$ANDROID_SDK_DIR/tools/bin/sdkmanager 'tools' > /dev/null
+$ANDROID_SDK_DIR/tools/bin/sdkmanager 'platform-tools' > /dev/null
+$ANDROID_SDK_DIR/tools/bin/sdkmanager 'build-tools;26.0.2' > /dev/null
+echo
+
+EXPORT_VAL="export ANDROID_HOME=$ANDROID_SDK_PATH"
+if ! grep -q "^$EXPORT_VAL" $BASH_RC; then
+        echo $EXPORT_VAL >> $BASH_RC
+fi
+#eval $EXPORT_VAL
+
+EXPORT_VAL="export ANDROID_NDK_ROOT=$ANDROID_NDK_PATH"
+if ! grep -q "^$EXPORT_VAL" $BASH_RC; then
+        echo $EXPORT_VAL >> $BASH_RC
+fi
+#eval $EXPORT_VAL
+
+EXPORT_VAL="export PATH=$PATH:$ANDROID_SDK_PATH/tools"
+if ! grep -q "^export PATH=.*$ANDROID_SDK_PATH/tools.*" $BASH_RC; then
+        echo $EXPORT_VAL >> $BASH_RC
+fi
+#eval $EXPORT_VAL
+
+EXPORT_VAL="export PATH=$PATH:$ANDROID_SDK_PATH/tools/bin"
+if ! grep -q "^export PATH=.*$ANDROID_SDK_PATH/tools/bin.*" $BASH_RC; then
+        echo $EXPORT_VAL >> $BASH_RC
+fi
+#eval $EXPORT_VAL
+
+echo
+echo "Done!"
+echo
diff --git a/misc/travis/ccache-osx.sh b/misc/travis/ccache-osx.sh
new file mode 100755
index 00000000000..5ce7a80cbc0
--- /dev/null
+++ b/misc/travis/ccache-osx.sh
@@ -0,0 +1,43 @@
+#!/bin/bash
+
+echo
+echo "Download and install ccache ..."
+echo
+
+echo "Downloading sources ..."
+curl -L -O https://www.samba.org/ftp/ccache/ccache-3.3.4.tar.gz # latest version available here: https://ccache.samba.org/download.html
+
+echo "Extracting to build directory ..."
+tar xzf ccache-3.3.4.tar.gz
+cd ccache-3.3.4
+
+echo "Compiling sources ..."
+./configure --prefix=/usr/local --with-bundled-zlib > /dev/null
+make
+
+echo "Installing ..."
+
+mkdir /usr/local/opt/ccache
+
+mkdir /usr/local/opt/ccache/bin
+cp ccache /usr/local/opt/ccache/bin
+ln -s /usr/local/opt/ccache/bin/ccache /usr/local/bin/ccache
+
+mkdir /usr/local/opt/ccache/libexec
+links=(
+  clang
+  clang++
+  cc
+  gcc gcc2 gcc3 gcc-3.3 gcc-4.0 gcc-4.2 gcc-4.3 gcc-4.4 gcc-4.5 gcc-4.6 gcc-4.7 gcc-4.8 gcc-4.9 gcc-5 gcc-6 gcc-7
+  c++ c++3 c++-3.3 c++-4.0 c++-4.2 c++-4.3 c++-4.4 c++-4.5 c++-4.6 c++-4.7 c++-4.8 c++-4.9 c++-5 c++-6 c++-7
+  g++ g++2 g++3 g++-3.3 g++-4.0 g++-4.2 g++-4.3 g++-4.4 g++-4.5 g++-4.6 g++-4.7 g++-4.8 g++-4.9 g++-5 g++-6 g++-7
+)
+for link in "${links[@]}"; do
+  ln -s ../bin/ccache /usr/local/opt/ccache/libexec/$link
+done
+#/usr/local/bin/ccache -M 2G
+cd $TRAVIS_BUILD_DIR
+
+echo
+echo "Done!"
+echo
diff --git a/misc/travis/scons-local-osx.sh b/misc/travis/scons-local-osx.sh
new file mode 100755
index 00000000000..d9d7d98b389
--- /dev/null
+++ b/misc/travis/scons-local-osx.sh
@@ -0,0 +1,18 @@
+#!/bin/bash
+
+echo
+echo "Download and install Scons local package ..."
+echo
+
+echo "Downloading sources ..."
+curl -L -O http://prdownloads.sourceforge.net/scons/scons-local-3.0.0.zip # latest version available here: http://scons.org/pages/download.html
+
+echo "Extracting to build directory ..."
+unzip -qq -n scons-local-3.0.0.zip -d $TRAVIS_BUILD_DIR/scons-local
+
+echo "Installing symlinks ..."
+ln -s $TRAVIS_BUILD_DIR/scons-local/scons.py /usr/local/bin/scons
+
+echo
+echo "Done!"
+echo
diff --git a/platform/android/detect.py b/platform/android/detect.py
index 966de832e8b..a3ada5cf517 100644
--- a/platform/android/detect.py
+++ b/platform/android/detect.py
@@ -173,8 +173,15 @@ def configure(env):
     # For Clang to find NDK tools in preference of those system-wide
     env.PrependENVPath('PATH', tools_path)
 
-    env['CC'] = compiler_path + '/clang'
-    env['CXX'] = compiler_path + '/clang++'
+    ccache_path = os.environ.get("CCACHE")
+    if ccache_path == None:
+        env['CC'] = compiler_path + '/clang'
+        env['CXX'] = compiler_path + '/clang++'
+    else:
+        # there aren't any ccache wrappers available for Android,
+        # to enable caching we need to prepend the path to the ccache binary
+        env['CC'] = ccache_path + ' ' + compiler_path + '/clang'
+        env['CXX'] = ccache_path + ' ' + compiler_path + '/clang++'
     env['AR'] = tools_path + "/ar"
     env['RANLIB'] = tools_path + "/ranlib"
     env['AS'] = tools_path + "/as"
diff --git a/platform/iphone/detect.py b/platform/iphone/detect.py
index 993a93ff893..d426b478bf5 100644
--- a/platform/iphone/detect.py
+++ b/platform/iphone/detect.py
@@ -76,11 +76,22 @@ def configure(env):
 
     env['ENV']['PATH'] = env['IPHONEPATH'] + "/Developer/usr/bin/:" + env['ENV']['PATH']
 
-    env['CC'] = '$IPHONEPATH/usr/bin/${ios_triple}clang'
-    env['CXX'] = '$IPHONEPATH/usr/bin/${ios_triple}clang++'
-    env['AR'] = '$IPHONEPATH/usr/bin/${ios_triple}ar'
-    env['RANLIB'] = '$IPHONEPATH/usr/bin/${ios_triple}ranlib'
-    env['S_compiler'] = '$IPHONEPATH/Developer/usr/bin/gcc'
+    compiler_path = '$IPHONEPATH/usr/bin/${ios_triple}'
+    s_compiler_path = '$IPHONEPATH/Developer/usr/bin/'
+
+    ccache_path = os.environ.get("CCACHE")
+    if ccache_path == None:
+        env['CC'] = compiler_path + 'clang'
+        env['CXX'] = compiler_path + 'clang++'
+        env['S_compiler'] = s_compiler_path + 'gcc'
+    else:
+        # there aren't any ccache wrappers available for iOS,
+        # to enable caching we need to prepend the path to the ccache binary
+        env['CC'] = ccache_path + ' ' + compiler_path + 'clang'
+        env['CXX'] = ccache_path + ' ' + compiler_path + 'clang++'
+        env['S_compiler'] = ccache_path + ' ' + s_compiler_path + 'gcc'
+    env['AR'] = compiler_path + 'ar'
+    env['RANLIB'] = compiler_path + 'ranlib'
 
     ## Compile flags
 
diff --git a/platform/osx/detect.py b/platform/osx/detect.py
index 31032659b64..c24bd98bf69 100644
--- a/platform/osx/detect.py
+++ b/platform/osx/detect.py
@@ -84,8 +84,15 @@ def configure(env):
         else: # 64-bit, default
             basecmd = root + "/target/bin/x86_64-apple-" + env["osxcross_sdk"] + "-"
 
-        env['CC'] = basecmd + "cc"
-        env['CXX'] = basecmd + "c++"
+        ccache_path = os.environ.get("CCACHE")
+        if ccache_path == None:
+            env['CC'] = basecmd + "cc"
+            env['CXX'] = basecmd + "c++"
+        else:
+            # there aren't any ccache wrappers available for OS X cross-compile,
+            # to enable caching we need to prepend the path to the ccache binary
+            env['CC'] = ccache_path + ' ' + basecmd + "cc"
+            env['CXX'] = ccache_path + ' ' + basecmd + "c++"
         env['AR'] = basecmd + "ar"
         env['RANLIB'] = basecmd + "ranlib"
         env['AS'] = basecmd + "as"