X-Git-Url: https://git.ao2.it/visomat-utils.git/blobdiff_plain/49d57f3f34f76b24d5bba6adae90d04c8e8ed406..802162fefcce3cda9325199d2fde2e897408e90a:/src/Makefile

diff --git a/src/Makefile b/src/Makefile
index 4ac4019..79105ea 100644
--- a/src/Makefile
+++ b/src/Makefile
@@ -36,6 +36,9 @@ ifeq ($(DEBUG),1)
   CFLAGS += -DDEBUG
 endif
 
+# for getopt
+CFLAGS += -D_POSIX_C_SOURCE=2
+
 CFLAGS += $(shell pkg-config --cflags libusb-1.0)
 LDLIBS := $(shell pkg-config --libs libusb-1.0)