Vladimir Nikolić
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| @@ -67,17 +67,17 @@ build options you plan to set. | |||||
| ### Cross compile | ### Cross compile | ||||
| Set `CC` and `FC` to point to the cross toolchains, and set `HOSTCC` to your host C compiler. | Set `CC` and `FC` to point to the cross toolchains, and set `HOSTCC` to your host C compiler. | ||||
| The target must be specified explicitly when cross compiling. | |||||
| The target must be specified explicitly when cross compiling. The `CROSS=1` flag should be specified. | |||||
| Examples: | Examples: | ||||
| * On an x86 box, compile this library for a loongson3a CPU: | * On an x86 box, compile this library for a loongson3a CPU: | ||||
| ```sh | ```sh | ||||
| make BINARY=64 CC=mips64el-unknown-linux-gnu-gcc FC=mips64el-unknown-linux-gnu-gfortran HOSTCC=gcc TARGET=LOONGSON3A | |||||
| make BINARY=64 CC=mips64el-unknown-linux-gnu-gcc FC=mips64el-unknown-linux-gnu-gfortran HOSTCC=gcc TARGET=LOONGSON3A CROSS=1 | |||||
| ``` | ``` | ||||
| or same with the newer mips-crosscompiler put out by Loongson that defaults to the 32bit ABI: | or same with the newer mips-crosscompiler put out by Loongson that defaults to the 32bit ABI: | ||||
| ```sh | ```sh | ||||
| make HOSTCC=gcc CC='/opt/mips-loongson-gcc7.3-linux-gnu/2019.06-29/bin/mips-linux-gnu-gcc -mabi=64' FC='/opt/mips-loongson-gcc7.3-linux-gnu/2019.06-29/bin/mips-linux-gnu-gfortran -mabi=64' TARGET=LOONGSON3A | |||||
| make HOSTCC=gcc CC='/opt/mips-loongson-gcc7.3-linux-gnu/2019.06-29/bin/mips-linux-gnu-gcc -mabi=64' FC='/opt/mips-loongson-gcc7.3-linux-gnu/2019.06-29/bin/mips-linux-gnu-gfortran -mabi=64' TARGET=LOONGSON3A CROSS=1 | |||||
| ``` | ``` | ||||
| * On an x86 box, compile this library for a loongson3a CPU with loongcc (based on Open64) compiler: | * On an x86 box, compile this library for a loongson3a CPU with loongcc (based on Open64) compiler: | ||||