RealCoder编译SylixOS的2440BSP模板，出现错误

lixiaocheng

大神们有没有遇到到过使用RealCoder编译一个920T的的sylixos
然后再创建一个mini2440模板的BSP
编译sylixos base的时候没有问题，但是编译 mini2440  bsp的时候，出现如下错误，
arm-sylixos-eabi-g++ -mcpu=arm920t -nostdlib -TSylixOSBSP.ld -o ./Debug/mini2440bsp.elf ./Debug/obj/SylixOS/bsp/bspInit.o ./Debug/obj/SylixOS/bsp/bspLib.o ./Debug/obj/SylixOS/bsp/startup.o ./Debug/obj/SylixOS/bsp/targetInit.o ./Debug/obj/SylixOS/driver/dma/samsungdma.o ./Debug/obj/SylixOS/driver/gpio/s3c2440_gpio.o ./Debug/obj/SylixOS/driver/i2c/samsungi2c.o ./Debug/obj/SylixOS/driver/lcd/s3c2440a_lcd.o ./Debug/obj/SylixOS/driver/mtd/nand/k9f1g08.o ./Debug/obj/SylixOS/driver/mtd/nand/nand.o ./Debug/obj/SylixOS/driver/mtd/nand/s3c24xx_nand.o ./Debug/obj/SylixOS/driver/netif/dm9000x.o ./Debug/obj/SylixOS/driver/pm/s3c2440a_pm.o ./Debug/obj/SylixOS/driver/rtc/rtc.o ./Debug/obj/SylixOS/driver/sdi/mciLib.o ./Debug/obj/SylixOS/driver/sdi/s3csdi.o ./Debug/obj/SylixOS/driver/sdi/sdInit.o ./Debug/obj/SylixOS/driver/timer/timer.o ./Debug/obj/SylixOS/driver/touchscr/s3c_onewire.o ./Debug/obj/SylixOS/driver/touchscr/touchscr.o ./Debug/obj/SylixOS/driver/tty/samsungtty.o ./Debug/obj/SylixOS/driver/tty/uart.o ./Debug/obj/SylixOS/user/main.o ./Debug/obj/SylixOS/bsp/symbol.o \
                -L"D:\sylixos_workspace\SylixOS_v4/libsylixos/Debug" -lsylixos -lm -lgcc
D:\sylixos_workspace\SylixOS_v4/libsylixos/Debug\libsylixos.a(vfprintf.o): In function `vfprintf':
D:\sylixos_workspace\SylixOS_v4\libsylixos/SylixOS/lib/libc/stdio/vfprintf.c:563: undefined reference to `__fpclassify'
D:\sylixos_workspace\SylixOS_v4\libsylixos/SylixOS/lib/libc/stdio/vfprintf.c:570: undefined reference to `__isnan'
collect2.exe: error: ld returned 1 exit status
make: *** [Debug/mini2440bsp.elf] Error 1
file:///C:\Users\xcli\AppData\Roaming\Tencent\Users\42896846\QQ\WinTemp\RichOle\6T9]D(0IXEXTQSP6UA2YD}I.jpg

tiger

某些软件（如：mingw）安装过程中会添加一个名为C_INCLUDE_PATH的环境变量，arm-sylixos-eabi-gcc会优先查找C_INCLUDE_PATH指定的目录，导致头文件引用错误。删除该变量可解决问题。我们会在下一版产品中屏蔽这个功能。