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Makefile file configure executable file and cflags parameter

2022-04-21 21:41:00 【aningxiaoxixi】

In the use of configure When cross compiling , To specify the cross compilation tool chain . At the same time, you may need to specify some parameters for cross compilation .
for example
common Makfile file 

CC = arm-poky-linux-gnueabi-gcc

OTHER_HEADERS = ../../mjpg_streamer.h ../../utils.h ../output.h ../input.h

CFLAGS += -O1 -DLINUX -D_GNU_SOURCE -Wall -shared -fPIC
CFLAGS += -march=armv7ve -mfpu=neon -mfloat-abi=hard -mcpu=cortex-a7 --sysroot=/home/book/Downloads/sysroots/cortexa7hf-neon-poky-linux-gnueabi
#CFLAGS += -g
#CFLAGS += -DDEBUG

Use in file CFLAGS Specify the parameters

that ./configure Also use CFLAGS Specified
for example ：

./configure --host=arm-poky-linux-gnueabi  --prefix=/home/book/Music/1111  --enable-shared --enable-static  CFLAGS="-march=armv7ve -mfpu=neon -mfloat-abi=hard -mcpu=cortex-a7 --sysroot=/home/book/Downloads/sysroots/cortexa7hf-neon-poky-linux-gnueabi"

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