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commit 5a0276aaac40c86a309a8a8e490f2d9a5c1805ca Author: Guillem Jover <[email protected]> Date: Wed Sep 14 02:38:19 2016 +0200 build: Check for the required minimal perl version We document the minimal perl version required at build and run-time, but we should instead do an actual check so that this is catched earlier and gives less surprises during the build process. --- debian/changelog | 1 + m4/dpkg-progs.m4 | 17 ++++++++++++++--- 2 files changed, 15 insertions(+), 3 deletions(-) diff --git a/debian/changelog b/debian/changelog index d4439cd..9245717 100644 --- a/debian/changelog +++ b/debian/changelog @@ -22,6 +22,7 @@ dpkg (1.18.11) UNRELEASED; urgency=medium - Require libselinux 2.0.99 for baseline API, remove static linking support, use pkg-config unconditionally, and perform refinement checks only if available. + - Check for the required minimal perl version. [ Updated manpages translations ] * German (Helge Kreutzmann). diff --git a/m4/dpkg-progs.m4 b/m4/dpkg-progs.m4 index 97e87ae..d9c4b21 100644 --- a/m4/dpkg-progs.m4 +++ b/m4/dpkg-progs.m4 @@ -7,10 +7,21 @@ # Locate perl interpreter in the path AC_DEFUN([DPKG_PROG_PERL], [ AC_ARG_VAR([PERL], [Perl interpreter])dnl - AC_PATH_PROG([PERL], [perl], [no]) - AS_IF([test "$PERL" = "no" || test ! -x "$PERL"], [ - AC_MSG_ERROR([cannot find the Perl interpreter]) + m4_define([PERL_MIN_VERSION], [5.14.2]) + AC_CACHE_CHECK([for perl >= PERL_MIN_VERSION], [ac_cv_path_PERL], [ + AC_PATH_PROGS_FEATURE_CHECK([PERL], [perl], [ + perlcheck=$(test -x $ac_path_PERL && \ + $ac_path_PERL -MConfig -Mversion -e \ + 'my $r = qv("v$Config{version}") >= qv("PERL_MIN_VERSION"); + print "yes" if $r') + AS_IF([test "x$perlcheck" = "xyes"], [ + ac_cv_path_PERL=$ac_path_PERL ac_path_PERL_found=: + ]) + ], [ + AC_MSG_ERROR([cannot find perl >= PERL_MIN_VERSION]) + ]) ]) + AC_SUBST([PERL], [$ac_cv_path_PERL]) AC_ARG_VAR([PERL_LIBDIR], [Perl library directory])dnl # Let the user override the variable. AS_IF([test -z "$PERL_LIBDIR"], [ -- Alioth's /usr/local/bin/git-commit-notice on /srv/git.debian.org/git/dpkg/dpkg.git
