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Set the NO_REGEX=NeedsStartEnd Makefile flag by default on AIX. Since commit 2f895225 ("regex: add regexec_buf() that can work on a non NUL-terminated string", 2016-09-21) git has errored out at compile-time if the regular expression library doesn't support REG_STARTEND. While looking through Google search results for the use of NO_REGEX I found a Chef recipe that set this on AIX[1], looking through the documentation for the latest version of AIX (7.2, released October 2015) shows that its regexec() doesn't have REG_STARTEND. 1. https://github.com/chef/omnibus-software/commit/e247e36761#diff-3df898345d670979b74acc0bf71d8c47 2. https://www.ibm.com/support/knowledgecenter/ssw_aix_72/com.ibm.aix.basetrf2/regexec.htm Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com> Reviewed-by: Jonathan Nieder <jrnieder@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
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