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dnl
dnl Some macros needed for autoconf
dnl
## GLIBMM_CV_PERL_VERSION(version)
##
## Helper macro of GLIBMM_CHECK_PERL(). It generates a cache variable
## name that includes the version number, in order to avoid clashes.
##
AC_DEFUN([GLIBMM_CV_PERL_VERSION],[glibmm_cv_perl_version_[]m4_translit([$1],[.${}],[____])])
## GLIBMM_CHECK_PERL(version)
##
## Check for Perl >= version and set PERL_PATH. If Perl is not found
## and maintainer-mode is enabled, abort with an error message. If not
## in maintainer-mode, set PERL_PATH=perl on failure.
##
AC_DEFUN([GLIBMM_CHECK_PERL],
[
glibmm_perl_result=no
AC_PATH_PROGS([PERL_PATH], [perl perl5], [not found])
if test "x$PERL_PATH" != "xnot found"; then
{
AC_CACHE_CHECK(
[whether Perl is new enough],
GLIBMM_CV_PERL_VERSION([$1]),
[
]GLIBMM_CV_PERL_VERSION([$1])[=no
"$PERL_PATH" -e "require v$1; exit 0;" >/dev/null 2>&1 && ]GLIBMM_CV_PERL_VERSION([$1])[=yes
])
test "x${GLIBMM_CV_PERL_VERSION([$1])}" = xyes && glibmm_perl_result=yes
}
else
{
# Make sure we have something sensible, even if it doesn't work.
PERL_PATH=perl
}
fi
if test "x$glibmm_perl_result" = xno && test "x$USE_MAINTAINER_MODE" = xyes; then
{
AC_MSG_ERROR([[
*** Perl >= ]$1[ is required for building $PACKAGE in maintainer-mode.
]])
}
fi
AC_SUBST([PERL_PATH])
])
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