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33 lines
1.1 KiB
33 lines
1.1 KiB
9 years ago
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dnl Copyright (c) 2016 - present Facebook, Inc.
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dnl All rights reserved.
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dnl
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dnl This source code is licensed under the BSD style license found in the
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dnl LICENSE file in the root directory of this source tree. An additional grant
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dnl of patent rights can be found in the PATENTS file in the same directory.
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AC_DEFUN([AC_COMPARE_VERSION_STRINGS],
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[dnl
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unset major_req
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unset minor_req
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unset patch_req
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unset major_inst
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unset minor_inst
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unset patch_inst
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major_req=$(printf "$1" | cut -d . -f 1)
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minor_req=$(printf "$1" | cut -d . -f 2)
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patch_req=$(printf "$1" | cut -d . -f 3)
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major_inst=$(printf "$2" | cut -d . -f 1)
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minor_inst=$(printf "$2" | cut -d . -f 2)
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# discard trailing characters after patch number, eg 1.2.3+4~5 -> 3
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patch_inst=$(printf "$2" | cut -d . -f 3 | grep -o -e '^[[[:digit:]]]*')
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AS_IF([test $major_inst -gt $major_req || \
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(test $major_inst -eq $major_req && \
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(test $minor_inst -gt $minor_req || \
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(test $minor_inst -eq $minor_req && \
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test $patch_inst -ge $patch_req)))],
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$3,
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$4)
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])
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