mirror of git://gcc.gnu.org/git/gcc.git
56 lines
1.3 KiB
Plaintext
56 lines
1.3 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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# 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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# 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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case "${host_cpu}" in
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i?86 | x86_64)
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fpu_host='fpu-387'
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ieee_support='yes'
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;;
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esac
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# Some targets require additional compiler options for NaN/Inf.
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ieee_flags=
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case "${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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