When compile Skype Silk 1.0.9 using Arm Gcc 4.6 with the instruction of Silk's Makefile,the error occur:
$make clean all TOOLCHAIN_PREFIX=arm-linux-gnueabi-gcc TARGET_CPU=cortex-a8 TARGET_ARCH=armv7
<stdin>:1:0: warning: switch -mcpu=cortex-a8 conflicts with -march= switch
Solution:
Specifying both -march= and -mcpu= is redundant, and may not in fact have done what you expected in previous compiler versions (maybe even depending on the order in which the arguments were given). The -march switch selects a "generic" ARMv7-A CPU, and -mcpu
selects specifically a Cortex-A8 CPU with tuning specific for that core.
Either use "-march=armv7-a -mtune=cortex-a8", or just use "-mcpu=cortex-a8".
当使用ArmGcc4.6编译SkypeSilk1.0.9时出现switch-mcpu=cortex-a8与-march=冲突警告。本文提供了解决方案：要么仅指定-mcpu=cortex-a8，要么同时指定-march=armv7-a和-mtune=cortex-a8。
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When compile Skype Silk 1.0.9 using Arm Gcc 4.6 with the instruction of Silk's Makefile,the error occur:
$make clean all TOOLCHAIN_PREFIX=arm-linux-gnueabi-gcc TARGET_CPU=cortex-a8 TARGET_ARCH=armv7
<stdin>:1:0: warning: switch -mcpu=cortex-a8 conflicts with -march= switch
Solution:
Specifying both -march= and -mcpu= is redundant, and may not in fact have done what you expected in previous compiler versions (maybe even depending on the order in which the arguments were given). The -march switch selects a "generic" ARMv7-A CPU, and -mcpu selects specifically a Cortex-A8 CPU with tuning specific for that core.
Either use "-march=armv7-a -mtune=cortex-a8", or just use "-mcpu=cortex-a8".