建议设置3ds的makefile文件的 INCLUDES 变量

[t2meng]

如果不设置此变量，会导致用devkitpro编译时找不到包含的头文件。如

$ make
rixplay.cpp
arm-none-eabi-g++ -MMD -MP -MF /e/3dswork/sdlpal-master/3ds/build/rixplay.d -g -Wall -O2 -mword-relocations -fomit-frame-pointer -ffunction-sections -march=armv6k -mtune=mpcore -mfloat-abi=hard -mtp=soft -I/opt/devkitpro/libctru/include -I/opt/devkitpro/portlibs/armv6k/include -I/opt/devkitpro/portlibs/3ds/include -I/opt/devkitpro/libctru/include/SDL -I/opt/devkitpro/portlibs/armv6k/include/SDL -I/opt/devkitpro/portlibs/3ds/include/SDL -I/e/3dswork/sdlpal-master/3ds/build -DARM11 -D_3DS -D__3DS__ -D__N3DS__ -DPAL_HAS_PLATFORM_SPECIFIC_UTILS -I. -fno-rtti -fno-exceptions -std=gnu++14 -c /e/3dswork/sdlpal-master/3ds/../rixplay.cpp -o rixplay.o
In file included from e:\3dswork\sdlpal-master\global.h:26:0,
from E:/3dswork/sdlpal-master/3ds/../rixplay.cpp:24:
e:\3dswork\sdlpal-master\common.h:175:10: fatal error: pal_config.h: No such file or directory
#include "pal_config.h"
^~~~~~~~~~~~~~
compilation terminated.
make[1]: *** [/opt/devkitpro/devkitARM/base_rules:80：rixplay.o] 错误 1
make: *** [Makefile:143：build] 错误 2

[t2meng]

建议这样设置 设置 INCLUDES

[louyihua]

你好，你可以创建pull request来提交你的这个修改

[t2meng]

#82 修改3ds makefile，设置正确的头文件路径。

[t2meng]

@louyihua DEVKITPRO变量和DEVKITARM不必设置，这两个变量是在devkitpro里面自动设置的，具体可以参考devkitpro 的3dsexample里的标准makefile ，如 3ds-examples ，在这里设置DEVKITPRO和DEVKITARM，可有可无。

[t2meng]

@louyihua 已经重新创建 pull request #83