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configure.ac: detect mandoc and set MANTYPE=doc

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OpenBSD uses mandoc [Feature #13981] [ruby-core:83146]
Note: AC_PATH_PROGS_FEATURE_CHECK is autoconf 2.62 feature,
but current CRuby declares AC_PREREQ(2.67); it's safe to use.
Patched by kernigh (George Koehler)

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@60129 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
This commit is contained in:
naruse 2017-10-06 11:17:38 +00:00
parent f52a49130f
commit 4f966c0a68
1 changed files with 12 additions and 2 deletions
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14
configure.ac
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@ -4523,8 +4523,18 @@ AC_ARG_WITH(mantype,
[AC_MSG_ERROR(invalid man type: $withval)])
])
AS_IF([test -z "$MANTYPE"], [
AC_PATH_PROGS(NROFF, nroff awf, /bin/false, "/usr/bin:/usr/ucb")
AS_IF([${NROFF} -mdoc ${srcdir}/man/ruby.1 >/dev/null 2>&1], [
dnl Looks for nroff with -mdoc support.
AC_CACHE_VAL([ac_cv_path_NROFF], [
AC_PATH_PROGS_FEATURE_CHECK([NROFF],
[nroff awf mandoc],
[$ac_path_NROFF -mdoc ${srcdir}/man/ruby.1 \
>/dev/null 2>&1 &&
ac_cv_path_NROFF=$ac_path_NROFF \
ac_path_NROFF_found=:],
[], ["/usr/bin:/usr/ucb"]
)
])
AS_IF([test -n "$ac_cv_path_NROFF"], [
MANTYPE=doc
], [
MANTYPE=man