Skip any lines of otool output that do not start with a tab, ensuring we
only check valid files and ignore e.g. shell scripts. Older versions of
otool would simply print no output on such files, whereas newer releases
print "is not an object file".
The "split" program is not managed by the tools framework. It just has a
wrapper that is placed into the same directory. This is confusing since
intuitively, "split" is a tool like many others.
The "duplicate script for target" warning from Make is therefore correct,
albeit obscure.
Currently, neither the pkgsrc infrastructure nor pkglint check for
allowed tool names.
The TOOLS_CREATE variable is only ever appended to, without checking for
duplicates. In some rare cases, this produces warnings about
doubly-defined make targets. An example is adding USE_TOOLS+=strip to
pkgtools/pkglint:
".../mk/tools/create.mk" line 149: warning:
duplicate script for target ".../work/.tools/bin/strip" ignored
The above line number 149 is zero-based, which in reality means the
duplicate definition is in line 150.
CMAKE_PKGSRC_BUILD_FLAGS
If set to yes, disable compiler optimization flags associated
with the CMAKE_BUILD_TYPE setting (for pkgsrc these come in from
the user via variables like CFLAGS). The default is yes, but you can
set it to no for pkgsrc packages that do not use a compiler to avoid
cmake "Manually-specified variables were not used by the project"
warnings associated with this variable.
The voodoo that checks this now keeps track of which packages caused
what, and in addition to the list FORCED_PKGSRC of packages that have
been forced to non-builtin, it also produces a list FORCED_PKGSRC_REASONS
of the form pkg:causing-pkg{,causing-pkg...}.
(which means that USE_BUILTIN.pkg has been set to no because
USE_BUILTIN.causing-pkg is set to no.)
This could probably just be one list but I'm not sure if anything is
relying on the format of the current FORCED_PKGSRC.
