交叉编译遇到的问题No support for MIPS CPUs without FPU

Question

我在交叉编译输入命令 ./configure --prefix=/mnt/opnresty --with-cc=/home/opt/toolchains/crosstools-mips-gcc-4.6-linux-3.4-uclibc-0.9.32-binutils-2.21/usr/bin/mips-linux-gcc --with-cpp=/home/opt/toolchains/crosstools-mips-gcc-4.6-linux-3.4-uclibc-0.9.32-binutils-2.21/usr/bin/mips-linux-g++
然后报错
==== Building LuaJIT 2.1.0-alpha ====
gmake -C src
lj_arch.h:386:2: error: #error "No support for MIPS CPUs without FPU"
lj_arch.h:386:2: error: #error "No support for MIPS CPUs without FPU"
lj_arch.h:386:2: error: #error "No support for MIPS CPUs without FPU"
lj_arch.h:386:2: error: #error "No support for MIPS CPUs without FPU"
lj_arch.h:386:2: error: #error "No support for MIPS CPUs without FPU"
lj_arch.h:386:2: error: #error "No support for MIPS CPUs without FPU"
lj_arch.h:386:2: error: #error "No support for MIPS CPUs without FPU"
lj_arch.h:386:2: error: #error "No support for MIPS CPUs without FPU"
lj_arch.h:386:2: error: #error "No support for MIPS CPUs without FPU"
lj_arch.h:386:2: error: #error "No support for MIPS CPUs without FPU"
lj_arch.h:386:2: error: #error "No support for MIPS CPUs without FPU"
lj_arch.h:386:2: error: #error "No support for MIPS CPUs without FPU"
lj_arch.h:386:2: error: #error "No support for MIPS CPUs without FPU"
lj_arch.h:386:2: error: #error "No support for MIPS CPUs without FPU"
lj_arch.h:386:2: error: #error "No support for MIPS CPUs without FPU"
gmake[1]: Entering directory /mnt/ngx_openresty-1.7.10.2/build/LuaJIT-2.1-20150622/src'
HOSTCC host/minilua.o
HOSTLINK host/minilua
lj_arch.h:386:2: error: #error "No support for MIPS CPUs without FPU"
DYNASM host/buildvm_arch.h
host/minilua: host/minilua: cannot execute binary file
gmake[1]: *** [host/buildvm_arch.h] Error 126
gmake[1]: Leaving directory/mnt/ngx_openresty-1.7.10.2/build/LuaJIT-2.1-20150622/src'
gmake: *** [default] Error 2
ERROR: failed to run command: gmake TARGET_STRIP=@: CCDEBUG=-g CC='/home/opt/toolchains/crosstools-mips-gcc-4.6-linux-3.4-uclibc-0.9.32-binutils-2.21/usr/bin/mips-linux-gcc' PREFIX=/mnt/opnresty/luajit这是什么鬼求解决。

Answer 1

你要指定用硬件FPU。你的编译库不支持没有硬件FPU的MIPS构架。
具体参考：https://gcc.gnu.org/onlinedocs/gcc/MIPS-Options.html