220b9bdfe8
This enables IEEE support on the upcoming aarch64-apple-darwin target, and has been tested for some time in an external port. libgfortran/ChangeLog: * configure.host: Add aarch64-apple-darwin support. * config/fpu-aarch64.h: New file.
90 lines
1.9 KiB
Plaintext
90 lines
1.9 KiB
Plaintext
# configure.host
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#
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# This shell script handles all host based configuration for libgfortran.
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# It sets various shell variables based on the the host triplet.
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# You can modify this shell script without rerunning autoconf/aclocal/etc.
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# This file is "sourced", not executed.
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#
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#
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# It uses the following shell variables as set by config.guess:
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# host The configuration host (full CPU-vendor-OS triplet)
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# host_cpu The configuration host CPU
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# host_os The configuration host OS
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#
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#
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# It sets the following shell variables:
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#
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# fpu_host FPU-specific code file, defaults to fpu-generic.
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# tmake_file A list of machine-description-specific
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# makefile fragments.
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# DEFAULTS
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fpu_host='fpu-generic'
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ieee_support='no'
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if test "x${have_fp_enable}" = "xyes" && test "x${have_fp_trap}" = "xyes"; then
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fpu_host='fpu-aix'
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ieee_support='yes'
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fi
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if test "x${have_fpsetmask}" = "xyes"; then
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fpu_host='fpu-sysv'
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ieee_support='yes'
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fi
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if test "x${have_feenableexcept}" = "xyes"; then
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fpu_host='fpu-glibc'
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ieee_support='yes'
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fi
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case "${host_cpu}" in
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# x86 asm should be used instead of glibc, since glibc doesn't support
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# the x86 denormal exception.
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i?86 | x86_64)
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if test "x${have_soft_float}" = "xyes"; then
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fpu_host='fpu-generic'
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ieee_support='no'
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else
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fpu_host='fpu-387'
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ieee_support='yes'
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fi
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;;
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# use asm on aarch64-darwin
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aarch64)
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case "${host_os}" in
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darwin*)
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fpu_host='fpu-aarch64'
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ieee_support='yes'
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;;
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esac
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esac
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# Some targets require additional compiler options for NaN/Inf.
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ieee_flags=
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case "${host_cpu}" in
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alpha*)
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ieee_flags="-mieee" ;;
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sh*)
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ieee_flags="-mieee" ;;
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esac
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tmake_file=
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# Other system configury
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case "${target}" in
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*-*-aix*)
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# Create AIX-style "FAT" libraries.
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tmake_file="t-aix"
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;;
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*)
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;;
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esac
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