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Makefile: use ?= for $BROWSER

This way the $BROWSER environment variable is used instead
if it exists.
This commit is contained in:
Wolfgang Bumiller 2016-03-03 10:01:14 +01:00
parent 734404b472
commit fc1090efc7

View File

@ -38,7 +38,7 @@ ADOC_STDARG= -a icons -a data-uri -a "date=$(shell date)"
ADOC_MAN1_HTML_ARGS=-a "manvolnum=1" ${ADOC_STDARG} -a "revnumber=${RELEASE}"
ADOC_MAN8_HTML_ARGS=-a "manvolnum=8" ${ADOC_STDARG} -a "revnumber=${RELEASE}"
BROWSER=xdg-open
BROWSER?=xdg-open
%-nwdiag.svg: %.nwdiag
nwdiag -T svg $*.nwdiag -o $@;