diff -ur libgpg-error.org/configure.ac libgpg-error/configure.ac --- configure.ac 2017-02-16 18:43:50.697941033 +0100 +++ configure.ac~ 2017-02-16 18:44:07.085881259 +0100 @@ -33,6 +33,11 @@ # decimalized short revision number, a beta version string, and a flag # indicating a development version (mym4_isgit). Note that the m4 # processing is done by autoconf and not during the configure run. +m4_define([m4_chomp_all], +[m4_format([[%.*s]], m4_bregexp(m4_translit([[$1]], [ +/], [/ ]), [/*$]), [$1])]) + +m4_define([m4_esyscmd_s], [m4_chomp_all(m4_esyscmd([$1]))]) m4_define([mym4_version], [mym4_version_major.mym4_version_minor]) m4_define([mym4_revision], m4_esyscmd([git rev-parse --short HEAD | tr -d '\n\r'])) @@ -65,7 +70,22 @@ AC_SUBST(VERSION_NUMBER) AC_CONFIG_AUX_DIR([build-aux]) -AM_INIT_AUTOMAKE([serial-tests dist-bzip2]) + +dnl Initialize automake. automake < 1.12 didn't have serial-tests and +dnl gives an error if it sees this, but for automake >= 1.13 +dnl serial-tests is required so we have to include it. Solution is to +dnl test for the version of automake (by running an external command) +dnl and provide it if necessary. Note we have to do this entirely using +dnl m4 macros since automake queries this macro by running +dnl 'autoconf --trace ...'. +m4_define([serial_tests], [ + m4_esyscmd([automake --version | + head -1 | + awk '{split ($NF,a,"."); if (a[1] == 1 && a[2] >= 12) { print "serial-tests" }}' + ]) +]) +AM_INIT_AUTOMAKE(foreign serial_tests dist-bzip2) dnl NB: Do not [quote] this parameter. + AM_MAINTAINER_MODE AC_CONFIG_SRCDIR([src/err-sources.h.in]) AC_CONFIG_HEADER([config.h])