ac-chez-scheme.m4

# Copyright © 2025 Barry Schwartz
#
# This file is part of Pipchix.
# 
# Permission is hereby granted, free of charge, to any person obtaining
# a copy of Pipchix and associated documentation files (the
# "Software"), to deal in the Software without restriction, including
# without limitation the rights to use, copy, modify, merge, publish,
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# permit persons to whom the Software is furnished to do so, subject to
# the following conditions:
# 
# The above copyright notice and this permission notice shall be
# included in all copies or substantial portions of the Software.
# 
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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# LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
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# WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

#
# Chez Scheme configuration.
#

CHEM_PATH_PROGS_CACHED_AND_PRECIOUS([CHEZ_SCHEME],
  [Chez Scheme],[scheme chezsheme chez-scheme chez],
  [
    if LC_ALL=C LANG=C ${ac_path_CHEZ_SCHEME} --help 2>&1 | \
      LC_ALL=C LANG=C ${GREP} 'run rnrs program as shell script' \
               2> /dev/null > /dev/null; then
        ac_cv_path_CHEZ_SCHEME="${ac_path_CHEZ_SCHEME}"
        ac_path_CHEZ_SCHEME_found=:
    fi
  ])
AM_CONDITIONAL([CHEZ_SCHEME],
               [test "${chem_cv_path_CHEZ_SCHEME_found}" != no])