don't use -Wmissing-prototypes for C++ code
diff --git a/configs/linux b/configs/linux
index 0ffc1bc..2526bb7 100644
--- a/configs/linux
+++ b/configs/linux
@@ -8,7 +8,6 @@
CC = gcc
CXX = g++
-WARN_FLAGS = -Wall -Wmissing-prototypes
OPT_FLAGS = -O3 -g
PIC_FLAGS = -fPIC
@@ -22,10 +21,10 @@
X11_INCLUDES = -I/usr/X11R6/include
-CFLAGS = $(WARN_FLAGS) $(OPT_FLAGS) $(PIC_FLAGS) $(ARCH_FLAGS) $(DEFINES) \
- $(ASM_FLAGS) $(X11_INCLUDES) -std=c99 -ffast-math
+CFLAGS = -Wall -Wmissing-prototypes $(OPT_FLAGS) $(PIC_FLAGS) $(ARCH_FLAGS) \
+ $(DEFINES) $(ASM_FLAGS) $(X11_INCLUDES) -std=c99 -ffast-math
-CXXFLAGS = $(WARN_FLAGS) $(OPT_FLAGS) $(PIC_FLAGS) $(ARCH_FLAGS) $(DEFINES) \
+CXXFLAGS = -Wall $(OPT_FLAGS) $(PIC_FLAGS) $(ARCH_FLAGS) $(DEFINES) \
$(X11_INCLUDES)
GLUT_CFLAGS = -fexceptions