D19092: Add bison minimum version of 2.4.1 due to %code

[Kurt Hindenburg]

hindenburg created this revision.
Herald added a project: Frameworks.
hindenburg requested review of this revision.

REVISION SUMMARY
  Some Mac OS versions have bison 2.3 even though it is very old.
  %code is first handled in bison version 2.4; gnu site has 2.4.1 as
  the earliest 2.4.x version.

TEST PLAN
  Verified build fails in cmake phase when using bison 2.3 and builds
  correctly using bison 2.4.1+.

REPOSITORY
  R309 KService

BRANCH
  bison_min_version (branched from master)

REVISION DETAIL
  https://phabricator.kde.org/D19092

AFFECTED FILES
  CMakeLists.txt

To: hindenburg
Cc: kde-frameworks-devel, michaelh, ngraham, bruns
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