Michael Paul Bailey <email@example.com>
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cryp.to ac-archive's AM Support (released)
Enables the use of make's jobserver for the purpose of parallel
building by passing the -j option to make.
The option --enable-jobserver is added to configure which can
accept a yes, no, or an integer. The integer is the number of
separate jobs to allow. If 'yes' is given, then the is assumed to
be one more than the number of CPUs (determined through
AX_COUNT_CPUS). If the value of no is given, then the jobserver is
disabled. The default value is given by the first argument of the
macro, or 'yes' if the argument is omitted.
This macro makes use of AX_AM_MACROS, so you must add the following
to your Makefile.am files.
[ --enable-jobserver@<:@=no/yes/@%:@@:>@ default=m4_ifval([$1],[$1],[yes])
Enable up to @%:@ make jobs
yes: enable one more than CPU count
if test "x$enable_jobserver" = "xyes"; then
if test "x$enable_jobserver" != "xno"; then
AC_MSG_NOTICE([added jobserver support to make for $enable_jobserver jobs])
AX_ADD_AM_MACRO( AM_MAKEFLAGS += -j$enable_jobserver )