From 984effd5b89293b895961e152a396b9ecf20e2f0 Mon Sep 17 00:00:00 2001
From: Oleg Hahm <oleg@hobbykeller.org>
Date: Sat, 21 Feb 2015 13:59:41 +0100
Subject: [PATCH] make: added a check for compiler existence

---
 Makefile.include | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/Makefile.include b/Makefile.include
index d964693099..3dc4effc32 100644
--- a/Makefile.include
+++ b/Makefile.include
@@ -154,7 +154,7 @@ LINKFLAGPREFIX ?= -Wl,
 DIRS += $(EXTERNAL_MODULE_DIRS)
 
 ## make script for your application. Build RIOT-base here!
-all: ..build-message $(USEPKG:%=${BINDIR}%.a) $(APPDEPS)
+all: ..compiler-check ..build-message $(USEPKG:%=${BINDIR}%.a) $(APPDEPS)
 	$(AD)DIRS="$(DIRS)" "$(MAKE)" -C $(CURDIR) -f $(RIOTBASE)/Makefile.application
 ifeq (,$(RIOTNOLINK))
 ifeq ($(BUILDOSXNATIVE),1)
@@ -166,6 +166,12 @@ endif
 	$(AD)$(OBJCOPY) $(OFLAGS) $(ELFFILE) $(HEXFILE)
 endif
 
+..compiler-check:
+	$(AD)command -v $(CC) >/dev/null 2>&1 || \
+		{ $(COLOR_ECHO) \
+		'${COLOR_RED} Compiler $(CC) is required but not found in PATH.  Aborting.${COLOR_RESET}'; \
+		exit 1; }
+
 ..build-message:
 	@$(COLOR_ECHO) '${COLOR_GREEN}Building application "$(APPLICATION)" for "$(BOARD)" with MCU "$(MCU)".${COLOR_RESET}'
 	@$(COLOR_ECHO)