Makefile.PL: allow `N' variable to be set in local config.mak

This can useful for limiting test resource use without relying
on remembering the variable command-line.

diff --git a/Makefile.PL b/Makefile.PL
index de0c49fd8e2c5660c08f913cadd1371e4b7e7116..f79697ba22960b22a25c283a48450a730478015b 100644 (file)
--- a/Makefile.PL
+++ b/Makefile.PL
@@ -53,9 +53,9 @@ sub MY::postamble {
 # support using eatmydata to speed up tests (apt-get install eatmydata):
 # https://www.flamingspork.com/projects/libeatmydata/
 EATMYDATA =
+N = \$\$(( \$\$(nproc 2>/dev/null || gnproc 2>/dev/null || echo 2) + 1 ))
 -include config.mak
 -include Documentation/include.mk
-N = \$\$(( \$\$(nproc 2>/dev/null || gnproc 2>/dev/null || echo 2) + 1 ))
 SCRIPTS := scripts/ssoma-replay
 my_syntax := \$(addsuffix .syntax, $PM_FILES \$(EXE_FILES) \$(SCRIPTS))