diff options
Diffstat (limited to 'configure.ac')
-rw-r--r-- | configure.ac | 35 |
1 files changed, 32 insertions, 3 deletions
diff --git a/configure.ac b/configure.ac index a5b0624..1bf0326 100644 --- a/configure.ac +++ b/configure.ac @@ -67,11 +67,40 @@ MCPPBS_PROG_INSTALL AC_HEADER_STDC #------------------------------------------------------------------------- -# Default compiler flags +# Register RISCV environment variable #------------------------------------------------------------------------- -AC_SUBST([CFLAGS], ["-Wall -Werror -D__NO_INLINE__ -mcmodel=medany -O2 -std=gnu99 -Wno-unused -Wno-attributes -fno-delete-null-pointer-checks"]) -AC_SUBST([LIBS], ["-lgcc"]) +AC_ARG_VAR(RISCV, [top-level RISC-V install directory]) + +#------------------------------------------------------------------------- +# Set compiler flags +#------------------------------------------------------------------------- + +default_CFLAGS="-Wall -Werror -D__NO_INLINE__ -mcmodel=medany -O2 -std=gnu99 -Wno-unused -Wno-attributes -fno-delete-null-pointer-checks" + +AC_ARG_ENABLE([32bit], + AS_HELP_STRING([--enable-32bit], [Build a 32-bit pk]), + BUILD_32BIT=$enableval, + BUILD_32BIT=no) + +case "${BUILD_32BIT}" in + yes|default) + echo "Building 32-bit pk" + CFLAGS="$default_CFLAGS -m32" + LDFLAGS="-m32" + install_subdir="riscv32-unknown-elf" + ;; + *) + CFLAGS="$default_CFLAGS" + LDFLAGS= + install_subdir="riscv64-unknown-elf" + ;; +esac + +AC_SUBST(CFLAGS) +AC_SUBST(LDFLAGS) +AC_SUBST([LIBS], ["-lgcc"]) +AC_SUBST(install_subdir) #------------------------------------------------------------------------- # MCPPBS subproject list |