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dnl @synopsis AC_RUBY_GEM(gem[, version][, action-if-found][, action-if-not-found][, gemhome])
dnl
dnl Checks for Ruby gem.
dnl
dnl @category InstalledPackages
dnl @author Fabio M. Di Nitto <fdinitto@redhat.com>.
dnl @version 2020-11-23
dnl @license AllPermissive
AC_DEFUN([AC_RUBY_GEM],[
module="$1"
reqversion="$2"
AC_MSG_CHECKING([ruby gem: $module])
if test -n "$5"; then
gemoutput=$(GEM_HOME=$5 $GEM list --local | grep "^$module " 2>/dev/null)
else
gemoutput=$($GEM list --local | grep "^$module " 2>/dev/null)
fi
if test "x$gemoutput" != "x"; then
curversionlist=$(echo $gemoutput | sed -e 's#.*(##g' -e 's#)##'g -e 's#default: ##g' | tr ',' ' ')
curversion=0.0.0
for version in $curversionlist; do
AC_COMPARE_VERSIONS([$curversion], [lt], [$version], [curversion=$version],)
done
if test "x$reqversion" != x; then
comp=$(echo $reqversion | cut -d " " -f 1)
tmpversion=$(echo $reqversion | cut -d " " -f 2)
AC_COMPARE_VERSIONS([$curversion], [$comp], [$tmpversion],, [AC_MSG_ERROR([ruby gem $module version $curversion detected. Requested "$comp $tmpversion"])])
fi
AC_MSG_RESULT([yes (detected: $curversion)])
eval AS_TR_CPP(HAVE_RUBYGEM_$module)=yes
eval AS_TR_CPP(HAVE_RUBYGEM_${module}_version)=$curversion
$3
else
AC_MSG_RESULT([no])
eval AS_TR_CPP(HAVE_RUBYGEM_$module)=no
eval AS_TR_CPP(HAVE_RUBYGEM_${module}_version)=""
$4
fi
])
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