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graphics/graphviz: fix build with BSD make

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BSD make does not know the $< variable in explicit rules, it only knows
it for inference rules like ".c.o".  This resulted in $< expanding to an
empty string, which in turn got the build stuck because it tried to read
from stdin.  But not in parallel mode, where stdin was redirected to an
empty file, resulting in an empty PostScript file being installed.

Fixes PR pkg/55539.
This commit is contained in:
rillig 2020-08-09 16:04:44 +00:00
parent 34678b9ebb
commit 46e92adad0
1 changed files with 4 additions and 1 deletions
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5
graphics/graphviz/Makefile
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@ -1,4 +1,4 @@
# $NetBSD: Makefile,v 1.217 2020/08/03 22:38:22 tnn Exp $
# $NetBSD: Makefile,v 1.218 2020/08/09 16:04:44 rillig Exp $
DISTNAME= graphviz-2.44.1
CATEGORIES= graphics
@ -19,6 +19,9 @@ PRIVILEGED_STAGES+= clean
USE_LANGUAGES= c c++
USE_LIBTOOL= yes
USE_TOOLS+= automake bison flex groff pkg-config
# GNU make is needed since BSD Make does not know $< in explicit rules,
# such as used by lib/cdt/Makefile.am.
USE_TOOLS+= gmake
GNU_CONFIGURE= yes
GNU_CONFIGURE_STRICT= no # has sub-configures
CONFIGURE_ARGS+= --disable-java