build: Check if deps are installed

Signed-off-by: Chloe M. <chloe@aptel.org>

1 files changed, 26 insertions, 0 deletions

diff --git a/build.sh b/build.sh
index 938564f..ecae772 100755
--- a/build.sh
+++ b/build.sh
@@ -3,6 +3,26 @@
 MAKE=make
 
 #
+# Check if a list of deps are installed on the host machine
+#
+# $@: Dep list to check
+#
+check_deps() {
+    for dep in $@
+    do
+        printf "Checking if $dep is installed... "
+        which $dep &>/dev/null
+        if [ $? -ne 0 ]
+        then
+            echo "no"
+            echo "fatal: Please install '$dep'!"
+            exit 1
+        fi
+        echo "yes"
+    done
+}
+
+#
 # Ensure that the build environment is sane
 #
 build_check() {
@@ -11,6 +31,12 @@ build_check() {
         echo "fatal: Please run '. dev/build.env'"
         exit 1
     fi
+
+    check_deps  \
+        rdar    \
+        clang   \
+        git     \
+        make
 }
 
 #