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libgfortran: Fix PR95647 by changing the interfaces of operators .eq. and .ne.
[thirdparty/gcc.git] / libgfortran / configure.host
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1# configure.host
2#
3# This shell script handles all host based configuration for libgfortran.
4# It sets various shell variables based on the the host triplet.
5# You can modify this shell script without rerunning autoconf/aclocal/etc.
6# This file is "sourced", not executed.
7#
8#
9# It uses the following shell variables as set by config.guess:
10# host The configuration host (full CPU-vendor-OS triplet)
11# host_cpu The configuration host CPU
12# host_os The configuration host OS
13#
14#
15# It sets the following shell variables:
16#
17# fpu_host FPU-specific code file, defaults to fpu-generic.
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18# tmake_file A list of machine-description-specific
19# makefile fragments.
20
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21
22
23# DEFAULTS
3b14f664 24fpu_host='fpu-generic'
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25ieee_support='no'
26
27if test "x${have_fp_enable}" = "xyes" && test "x${have_fp_trap}" = "xyes"; then
28 fpu_host='fpu-aix'
29 ieee_support='yes'
30fi
31
32if test "x${have_fpsetmask}" = "xyes"; then
33 fpu_host='fpu-sysv'
34 ieee_support='yes'
35fi
944b8b35 36
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37if test "x${have_feenableexcept}" = "xyes"; then
38 fpu_host='fpu-glibc'
8b198102 39 ieee_support='yes'
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40fi
41
42# x86 asm should be used instead of glibc, since glibc doesn't support
43# the x86 denormal exception.
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44case "${host_cpu}" in
45 i?86 | x86_64)
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46 if test "x${have_soft_float}" = "xyes"; then
47 fpu_host='fpu-generic'
48 else
49 fpu_host='fpu-387'
50 fi
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51 ieee_support='yes'
52 ;;
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53esac
54
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55# Some targets require additional compiler options for NaN/Inf.
56ieee_flags=
57case "${host_cpu}" in
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58 alpha*)
59 ieee_flags="-mieee" ;;
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60 sh*)
61 ieee_flags="-mieee" ;;
62esac
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63
64tmake_file=
65# Other system configury
66case "${target}" in
67
68 *-*-aix*)
69 # Create AIX-style "FAT" libraries.
70 tmake_file="t-aix"
71 ;;
72
73 *)
74 ;;
75
76esac
77