Hello,
I just fetched a fresh copy of igraph 0.7.1 on cygwin and noticed bootstrap
problems specifically with
`automake --add-missing --copy`
The first few lines of output are below. Noticed also mix of AC_INIT and
AM_INIT_AUTOMAKE in configure.ac
```
~/lib/igraph-0.7.1$ automake --add-missing --copy
Unescaped left brace in regex is deprecated, passed through in regex; marked
by <-- HERE in m/\${ <-- HERE ([^ \t=:+{}]+)}/ at /bin/automake-1.14 line
3930.
configure.ac: error: no proper invocation of AM_INIT_AUTOMAKE was found.
configure.ac: You should verify that configure.ac invokes AM_INIT_AUTOMAKE,
configure.ac: that aclocal.m4 is present in the top-level directory,
configure.ac: and that aclocal.m4 was recently regenerated (using aclocal)
Makefile.am:10: warning: wildcard $(top_srcdir: non-POSIX variable name
Makefile.am:10: (probably a GNU make extension)
doc/Makefile.am:23: warning: patsubst %,$(top_srcdir: non-POSIX variable
name
doc/Makefile.am:23: (probably a GNU make extension)
doc/Makefile.am:44: warning: patsubst $(top_srcdir: non-POSIX variable name
doc/Makefile.am:44: (probably a GNU make extension)
doc/Makefile.am:44: warning: wildcard $(top_srcdir: non-POSIX variable name
doc/Makefile.am:44: (probably a GNU make extension)
doc/Makefile.am:46: warning: '%'-style pattern rules are a GNU make
extension
```
I was upgrading from 0.7.0 to look at louvain-igraph
TIA!
JP
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