2 files changed, 4 insertions, 2 deletions

diff --git a/Makefile b/Makefile
index b885258..ad92a44 100644
--- a/Makefile
+++ b/Makefile
@@ -1,3 +1,5 @@
+.POSIX:
+
 CONFIG = config.mk
 include $(CONFIG)
 
diff --git a/config.mk b/config.mk
index 2a42d3c..edb71a5 100644
--- a/config.mk
+++ b/config.mk
@@ -7,9 +7,9 @@ EXECPREFIX = $(PREFIX)
 MANPREFIX = $(PREFIX)/share/man
 DOCPREFIX = $(PREFIX)/share/doc
 
-CC = cc
+CC = c99
 AR = ar
 
 CPPFLAGS = -D_DEFAULT_SOURCE -D_BSD_SOURCE -D_XOPEN_SOURCE=700 -DGOOD_RAND
-CFLAGS   = -std=c99 -O3 -flto -Wall -pedantic
+CFLAGS   = -O3 -flto -Wall -pedantic
 LDFLAGS  = -s