src/Makefile: Support parallel builds when creating the manpages.

A temporary file name is used when creating the manpages. So far, a static
file name had been used for that, thus causing race conditions. Now, a unique
suffix (PID) is used to fix that.

Thanks to BC^bd for reporting that on IRC!

diff --git a/src/Makefile.am b/src/Makefile.am
index 7b13029..75f88eb 100644 (file)
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -1029,7 +1029,7 @@ EXTRA_DIST +=   collectd.conf.pod \
 
 .pod.1:
        pod2man --release=$(VERSION) --center=$(PACKAGE) $< \
-               >.pod2man.tmp 2>/dev/null && mv -f .pod2man.tmp $@ || true
+               >.pod2man.tmp.$$$$ 2>/dev/null && mv -f .pod2man.tmp.$$$$ $@ || true
        @if grep '\<POD ERRORS\>' $@ >/dev/null 2>&1; \
        then \
                echo "$@ has some POD errors!"; false; \
@@ -1037,7 +1037,7 @@ EXTRA_DIST +=   collectd.conf.pod \
 
 .pod.5:
        pod2man --section=5 --release=$(VERSION) --center=$(PACKAGE) $< \
-               >.pod2man.tmp 2>/dev/null && mv -f .pod2man.tmp $@ || true
+               >.pod2man.tmp.$$$$ 2>/dev/null && mv -f .pod2man.tmp.$$$$ $@ || true
        @if grep '\<POD ERRORS\>' $@ >/dev/null 2>&1; \
        then \
                echo "$@ has some POD errors!"; false; \