From: Matheus Tavares Bernardino <quic_mathb...@quicinc.com> Hexagon's idef-parser machinery uses some bison features that are not available at older versions. The most preeminent example (as it can be used as a sentinel) is "%define parse.error verbose". This was introduced in version 3.0 of the tool, which is able to compile qemu-hexagon just fine. However, compilation fails with the previous minor bison release, v2.7. So let's assert the minimum version at meson.build to give a more comprehensive error message for those trying to compile QEMU.
[1]: https://www.gnu.org/software/bison/manual/html_node/_0025define-Summary.html#index-_0025define-parse_002eerror Signed-off-by: Matheus Tavares Bernardino <quic_mathb...@quicinc.com> Reviewed-by: Thomas Huth <th...@redhat.com> Reviewed-by: Alessandro Di Federico <a...@rev.ng> Reviewed-by: Taylor Simpson <tsimp...@quicinc.com> Message-Id: <a6763f9f7b89ea310ab86f9a2b311a05254a1acd.1675779233.git.quic_mathb...@quicinc.com> Signed-off-by: Thomas Huth <th...@redhat.com> --- target/hexagon/meson.build | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/target/hexagon/meson.build b/target/hexagon/meson.build index c9d31d095c..42b03c81e6 100644 --- a/target/hexagon/meson.build +++ b/target/hexagon/meson.build @@ -183,7 +183,7 @@ if idef_parser_enabled and 'hexagon-linux-user' in target_dirs ) bison = generator( - find_program('bison'), + find_program('bison', version: '>=3.0'), output: ['@BASENAME@.tab.c', '@BASENAME@.tab.h'], arguments: ['@INPUT@', '--defines=@OUTPUT1@', '--output=@OUTPUT0@'] ) -- 2.31.1
