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configure.ac: bison is required for kconf

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Make the requirement for bison harder (but not strict). The system bison
will be used to build kconf. If the system bison is not GNU bison 2.7 or
later crosstool-ng will build GNU bison as a companion tool if necessary
(for glibc 2.29 or newer).

Fixes #1621
Signed-off-by: Chris Packham <judge.packham@gmail.com>
This commit is contained in:
Chris Packham 2022-06-08 20:43:29 +12:00
parent 2f0d1f334f
commit a3e3d734a7
1 changed files with 1 additions and 1 deletions
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configure.ac
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@ -267,7 +267,7 @@ CTNG_PROG_VERSION([PYTHON],
[^Python 3\.([4-9]|[1-9][0-9]+)\.],
[python_3_4_or_newer])
CTNG_PROG_VERSION([BISON],
CTNG_PROG_VERSION_REQ_ANY([BISON],
[bison >= 2.7],
[bison],
[bison],