1 files changed, 9 insertions, 1 deletions

diff --git a/Makefile b/Makefile
index 07ffbf4..24c88a5 100644
--- a/Makefile
+++ b/Makefile
@@ -11,12 +11,20 @@ PATCH = 1
 INCFLAGS  = $(shell echo $(SOURCE) | xargs printf -- '-I%s ')
 
 CCFLAGS  = -std=c89 -Wall -Wextra -pedantic -O2 
-CCFLAGS += -D_DEFAULT_SOURCE -DMAJOR=$(MAJOR) -DMINOR=$(MINOR) -DPATCH=$(PATCH) -DCHECK_LINK
+CCFLAGS += -DMAJOR=$(MAJOR) -DMINOR=$(MINOR) -DPATCH=$(PATCH) -DCHECK_LINK
 CCFLAGS += $(INCFLAGS)
 
 LDFLAGS = -s
 LDFLAGS += $(INCFLAGS)
 
+UNAME := $(shell uname)
+
+ifeq ($(UNAME), Linux)
+CCFLAGS += -D_GNU_SOURCE
+else 
+CCFLAGS += -D_DEFAULT_SOURCE
+endif
+
 BIN = bin
 APP = $(BIN)/app
 SRC = $(shell find $(SOURCE) -name "*.c")