Sorry, in the problem report ports/51249 all references to "patch-ab"
should be replaced with "patch-ac". The updated report should read:
'make' fails due to typo in patch-ac. CFLAGS doesn't exist yet,
so += operator fails:
===> Building for poptop-1.1.3_1
cd . && aclocal
cd . && automake --foreign Makefile
Makefile.am: CFLAGS must be set with `=' before using `+='
*** Error code 1
Stop in /usr/ports/net/poptop/work/pptpd-1.1.3.
In patch-ac, change:
+CFLAGS+= -DSBINDIR='"$(sbindir)"' -DETCDIR='"$(sysconfdir)"'
+CFLAGS = -DSBINDIR='"$(sbindir)"' -DETCDIR='"$(sysconfdir)"'
A fix was committed, thanks for your report.