compile_webidebridge.sh: don't require all platforms compilers

So one can build the tool without preparing all cross compilers.

Signed-off-by: Riccardo Magliocchetti <riccardo.magliocchetti@gmail.com>

Author: xrmx

compile_webidebridge.sh

@@ -12,6 +12,10 @@ red='\e[0;31m'
 green='\e[0;32m'
 NC='\e[0m' # No Color
 
+DARWIN_CC=o64-clang
+LINUX_CC=gcc
+WIN_CC=i686-w64-mingw32-gcc
+
 extractVersionFromMain()
 {
 	VERSION=`grep version main.go | cut -d "\"" -f2 | cut -d "\"" -f1 | head -1`
@@ -47,11 +51,11 @@ bootstrapPlatforms()
     echo 'In bootstrapPlatforms'
 	#export PATH=$PATH:/opt/osxcross/target/bin
 	cd $GOROOT/src
-	env CC_FOR_TARGET=o64-clang CGO_ENABLED=1 GOOS=darwin GOARCH=amd64 ./make.bash --no-clean
-	env CC_FOR_TARGET=gcc CGO_ENABLED=1 GOOS=linux GOARCH=amd64 ./make.bash --no-clean
-	env CC_FOR_TARGET=gcc CGO_ENABLED=1 GOOS=linux GOARCH=386 ./make.bash --no-clean
+	env CC_FOR_TARGET=$DARWIN_CC CGO_ENABLED=1 GOOS=darwin GOARCH=amd64 ./make.bash --no-clean
+	env CC_FOR_TARGET=$LINUX_CC CGO_ENABLED=1 GOOS=linux GOARCH=amd64 ./make.bash --no-clean
+	env CC_FOR_TARGET=$LINUX_CC CGO_ENABLED=1 GOOS=linux GOARCH=386 ./make.bash --no-clean
 	env CGO_ENABLED=0 GOOS=linux GOARCH=arm ./make.bash --no-clean
-	env CC_FOR_TARGET=i686-w64-mingw32-gcc CGO_ENABLED=1 GOOS=windows GOARCH=386 ./make.bash --no-clean
+	env CC_FOR_TARGET=$WIN_CC CGO_ENABLED=1 GOOS=windows GOARCH=386 ./make.bash --no-clean
 }
 
 compilePlatform()
@@ -80,11 +84,22 @@ compilePlatform()
 }
 
 extractVersionFromMain
-compilePlatform darwin amd64 o64-clang 1
-#compilePlatformLinux linux 386 gcc
-compilePlatform linux amd64 gcc 1
-compilePlatform linux arm 0
-compilePlatform windows 386 i686-w64-mingw32-gcc 1
-
+if [ ! -z $(which $DARWIN_CC) ]; then
+	compilePlatform darwin amd64 $DARWIN_CC 1
+else
+	echo -e "${red}$DARWIN_CC not available. Skipping...${NC}"
+fi
+if [ ! -z $(which $LINUX_CC) ]; then
+	#compilePlatformLinux linux 386 $LINUX_CC
+	compilePlatform linux amd64 $LINUX_CC 1
+	compilePlatform linux arm 0
+else
+	echo -e "${red}$LINUX_CC not available. Skipping...${NC}"
+fi
+if [ ! -z $(which $WIN_CC) ]; then
+	compilePlatform windows 386 $WIN_CC 1
+else
+	echo -e "${red}$WIN_CC not available. Skipping...${NC}"
+fi
 
 exit 0