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Diffstat (limited to 'configure.ac')
| -rw-r--r-- | configure.ac | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/configure.ac b/configure.ac index a4fcb35..ac1f85d 100644 --- a/configure.ac +++ b/configure.ac @@ -44,6 +44,20 @@ AC_CHECK_TYPES(ptrdiff_t) AM_GNU_GETTEXT([external], [need-formatstring-macros]) AM_GNU_GETTEXT_VERSION([0.15]) +dnl Allow maintainer rules under GNU make even in VPATH builds. This does +dnl not work in autoconf 2.61 or earlier, but we don't want to require +dnl non-maintainers to use unreleased autoconf, hence the version test. +dnl TODO remove the version check once autoconf 2.62 is released. +dnl Meanwhile, we must use a shell variable so that we bypass automake's +dnl attempts to remove the sole copy of GNUmakefile in a non-VPATH build +dnl during 'make distclean'. +dnl TODO avoid the shell variable once automake is fixed. +GNUmakefile=GNUmakefile +m4_if(m4_version_compare([2.61a.100], + m4_defn([m4_PACKAGE_VERSION])), [1], [], + [AC_CONFIG_LINKS([$GNUmakefile:$GNUmakefile], [], + [GNUmakefile=$GNUmakefile])]) + AC_CONFIG_FILES([ po/Makefile.in doc/Makefile |