Allow customization of compiler used in configure.

configure

@@ -18,7 +18,7 @@ LIBS="-lm -pthread"
 
 
 # Set default args for all platforms
-SCRIPT_ARGS="--prefix=/usr/local --enable-ld-extra --lib-name=Cytoplasm --lib-version=0.4.0 --static $@"
+SCRIPT_ARGS="--cc=cc --prefix=/usr/local --enable-ld-extra --lib-name=Cytoplasm --lib-version=0.4.0 --static $@"
 
 # Set platform specific args
 case "$(uname)" in
@@ -36,6 +36,9 @@ echo "Ran with arguments: $SCRIPT_ARGS"
 # Process all arguments
 for arg in $SCRIPT_ARGS; do
     case "$arg" in
+        --cc=*)
+            CC=$(echo "$arg" | cut -d '=' -f 2-)
+            ;;
         --with-openssl)
             TLS_IMPL="TLS_OPENSSL"
             TLS_LIBS="-lcrypto -lssl"
@@ -81,7 +84,7 @@ for arg in $SCRIPT_ARGS; do
             STATIC=""
             ;;
         *)
-            echo "Invalid argument: $1"
+            echo "Invalid argument: $arg"
             exit 1
             ;;
     esac
@@ -129,7 +132,7 @@ compile_obj() {
 	src="$1"
 	obj="$2"
 
-	cc -I${INCLUDE} -MM -MT "${obj}" "${src}"
+	${CC} -I${INCLUDE} -MM -MT "${obj}" "${src}"
 	echo "${TAB}@mkdir -p $(dirname ${obj})"
 	echo "${TAB}\$(CC) \$(CFLAGS) -fPIC -c -o \"${obj}\" \"${src}\""
 }
@@ -195,7 +198,7 @@ cat << EOF > Makefile
 # Generated by '$0' on $(date).
 # This file should generally not be manually edited.
 
-CC = cc
+CC = ${CC}
 PREFIX = ${PREFIX}
 CFLAGS = ${CFLAGS}
 LDFLAGS = ${LDFLAGS}