the non-buildlink-related code and moves it out of mk/buildlink3 into
mk/wrapper. The buildlink3 code is modified to simply hook its
transformations into the wrapper script framework.
The wrapper script framework has some new features:
* Support automatically passing "ABI" flags to the compiler and linker
depending on the value of ${ABI}. Currently supports the SunPro
compiler with ${ABI} == 64 and the MIPSPro compiler with ${ABI} as
any of 32, n32, o32, and 64.
* making UnixWare GCC accept -rpath options and silently converting
them into an appropriate LD_RUN_PATH
* Add cmd-sink-interix-gcc and cmd-sink-interix-ld that errors out
when it sees -fpic/-fPIC and -shared/-Bshareable, respectively
(requested by <tv>).
* Much improved debugging output. It's possible to output the wrapper
work log in-line with normal output by setting WRAPPER_LOG to
"stderr".
Important differences in behaviour from the old buildlink3 code include:
* Only move the -l options to the end of the command line, leaving the
-L options in-place.
* Extend the autodetection of the libtool mode to detect "compile" and
"uninstall".
* Fix problem noted in both PR pkg/24760 and PR pkg/25500, where
-L/usr/lib/* was being mangled improperly.
* Remove the top-level "buildlink" target; instead, make buildlinking
occur as part of the "wrapper" target.
* mangle and sub-mangle are only meant to transform directories in
-I, -L, and rpath options, so remove the lines in
buildlink3/gen-transform.sh that transformed bare directories.
* Add the ability for the libtool wrapper to be called just to unwrap
an existing libtool archive by running:
libtool --mode=unwrap -o libfoo.la
The old --fix-la syntax no longer works.
20040818
========
* Initial release of a new wrapper script framework that encapsulates
the non-buildlink-related code and moves it out of mk/buildlink3.
These features include:
* making MIPSpro accept GCC options
* making MIPSpro "ucode" accept GCC options
* making SunPro accept GCC options
* making "ld" accept -Wl,* options and silently removing the "-Wl,"
* (NEW) making UnixWare GCC accept -rpath options and silently
converting them into an appropriate LD_RUN_PATH
One major benefit of this is that the buildlink3 code is now much
tighter and easier to understand since it concerns itself solely
with buildlink-related details. I haven't yet optimized the wrapper
cache, so the new wrapper scripts may take slightly longer to execute
than the old buildlink3 wrapper scripts, but I'll be improving this
over time.
20040821
========
* Move the inclusion of $cmd_sink outside of the main loop in wrapper.sh
so that the $cmd_sink script can be used to globally scan and process
the arguments. Move the LD_RUN_PATH code to a cmd-sink-unixware-gcc
script. Garbage-collect the now unused export_vars-related code.
* Add cmd-sink-aix-xlc for AIX xlc that munges -Wl,-R* into an
appropriate -blibpath option.
* Add cmd-sink-interix-gcc and cmd-sink-interix-ld that errors out
when it sees -fpic/-fPIC and -shared/-Bshareable, respectively
(requested by <tv>).
* Move the code that converts full paths to shared libraries into the
"-Ldir -llib" equivalents from the buildlink3 code into wrapper/logic.
Remove the same from bsd.buildlink3.mk and gen-transform.sh.
* Move the code that checks for absolute rpaths from the buildlink3
code into wrapper/arg-source. Remove the same from bsd.buildlink3.mk
and gen-transform.sh.
* Only move the -l options to the end of the command line, leaving the
-L options in-place.
* Add more debugging code.
20040824
========
* Fix quoting problems after arguments are transformed. Remove the
hack that was inserted that magically made almost everything work
because we do it the right way now.
* Move the inclusion of $logic outside of the main loop in wrapper.sh
so that the $logic script doesn't have to worry about underflowing
the argument buffer.
* Encapsulate the loop in wrapper.sh that fills the argument buffer
entirely within the arg-source script.
* Move from the logic script into the arg-source script the
transformations that merge or split arguments.
* Fix bug where skipargs was effectively being ignored if it was more
than 1.
* Handle the whitespace in transformations in the logic script that
turn one library option into multiple library options, e.g.
"-lreadline" -> "-ledit -ltermcap".
* Allow you to specify an environment variable WRAPPER_SKIP_TRANSFORM
for whether you wish to skip the transformation step in the logic
script. This is intended for testing purposes.
* Added check_prog() and init_lib() functions to the shell code library
to make it more reusable outside of the wrapper framework.
* Allow the msg_log() function to output to "stdout" or "stderr". If
you want to have all of the logging appear on the screen, then you
can now set WRAPPER_LOG=stderr.
* Make some of the script components not overridable on a per-wrapper
basis.
* Add a gen-transform.sh script that generates transformation sedfiles.
The "transform" script is used to transform arguments, while the
"untransform" script is used to unwrap files. Move the no-rpath
logic from buildlink3/gen-transform.sh into wrapper/gen-transform.sh
since it's not buildlink3-specific.
* Check for a non-empty blibpath before adding the option in
cmd-sink-aix-xlc.
* Extend the autodetection of the libtool mode to detect "compile" and
"uninstall".
* Add a cmd-sink-libtool script that doesn't pass linker options to
libtool unless we're in "link" mode.
* Set _USE_RPATH to "yes" for UnixWare so that the wrappers will see the
rpath options and convert them to a LD_RUN_PATH definition.
* Add more debugging code.
20040826
========
* Rewrite buildlink3/gen-transform.sh to produce more precise sed commands.
Drop some unused commands from the mini-language, and add a few more
that are more restrictive in their scope.
* Fix problem where repeated options weren't properly handled by some
of sed commands. It's not enough that they're "global replace",
since some patterns match separator characters before and after each
option. We must repeat those patterns twice to catch all instances
correctly.
* Fix problem noted in both PR pkg/24760 and PR pkg/25500, where
-L/usr/lib/* was being mangled improperly.
* Remove the top-level "buildlink" target; instead, make buildlinking
occur as part of the "wrapper" target.
* Add more debugging code.
20040828
========
* Added a head_queue function to shell-lib that returns the head of the
named queue without popping it off the front of the queue.
* Strip consecutive, repeated library options from the command line when
we read it in the logic script.
* Be more careful about not underflowing the argument buffer.
20040906
========
* shell-lib was moved into pkgsrc/mk/scripts; correct references to that
file in the wrapper code.
* Use opt-sub instead of sub-mangle when protecting -I/usr/include/*
and -L/usr/lib/* from buildlink transformations. This avoids adding
lines that look like "-I-I..." in the transformation sedfiles.
* mangle and sub-mangle are only meant to transform directories in
-I, -L, and rpath options, so remove the lines in
buildlink3/gen-transform.sh that transformed bare directories.
* Fix bug in strip-slashdot where the "." wasn't backquoted and thus
matched all characters instead of only the "." character.
* Change the libtool wrapper to use a modified buildcmd script that
doesn't rearrange any of the arguments. This should fix spurious
problems where libtool doesn't understand how to parse the command
line when the -l options are moved to the end of the argument list.
* Fix bug in the logic script where the $cachearg and $cachedarg
weren't being properly set at all times, which caused the cache to
contain the wrong transformed argument.
20040907
========
* Support automatically passing "ABI" flags to the compiler and linker
depending on the value of ${ABI}. Currently supports the SunPro
compiler with ${ABI} == 64 and the MIPSPro compiler with ${ABI} as
any of 32, n32, o32, and 64.
* Move back the code that splits absolute paths to shared libraries
from arg-source back into logic. This allows us to correctly skip
splitting those paths based on the previous option. Also add a
sanity check that the library name in the split argument doesn't
contain a "/" since shell globs are not as precise as REs.
* Don't transform the path given after --dynamic-linker (used by GNU
ld for ELF linkage).
* Add the ability for the libtool wrapper to be called just to unwrap
an existing libtool archive by running:
libtool --mode=unwrap -o libfoo.la
20040914
========
* Add a loop in libtool-fix-la to ensure that all of the options listed
in the dependency_libs lines of *.lai files are processed. This fixes
a buildlink3 leakage bug.
* Merge the gen-transform.sh scripts between buildlink3 and wrapper and
place them all in wrapper. This makes sense since the commands simply
allow for many types of transformations, which buildlink3 takes
advantage of, but there is nothing inherently buildlink-ish about
those commands.
* Don't directly manipulate SUBST_SED.unwrap. Instead, create the
value of SUBST_SED.unwrap by combining several other variables
(currently just _UNWRAP_SED) to ensure that the correct ordering is
preserved.
* Correct some confusing debugging messages.
which are the full option names used to set rpath directives for the
linker and the compiler, respectively. In places were we are invoking
the linker, use "${LINKER_RPATH_FLAG} <path>", where the space is
inserted in case the flag is a word, e.g. -rpath. The default values
of *_RPATH_FLAG are set by the compiler/*.mk files, depending on the
compiler that you use. They may be overridden on a ${OPSYS}-specific
basis by setting _OPSYS_LINKER_RPATH_FLAG and _OPSYS_COMPILER_RPATH_FLAG,
respectively. Garbage-collect _OPSYS_RPATH_NAME and _COMPILER_LD_FLAG.
some packages (for example ntp4) have configure scripts that try to be
clever and insert their own if they don't find any. This would be wrong
on a system that relies on /etc/compiler.defaults to choose the correct
ABI.
(Not having this set caused various rpath related problems, as the compiler
was passed ' -rpath,/path' instead of '-Wl,-rpath,/path', leading to
a rpath of ",path", which of course wouldn't work.)
Package Makefiles may now directly include compiler.mk.
* Don't include compiler.mk within bsd.prefs.mk any longer. It was only
included for the purposes of defining CC_VERSION. Packages that want
to test the value of CC_VERSION should now first include
"../../mk/compiler.mk". Any GCC_REQD statements in package Makefiles
should be set before compiler.mk is included.
* Simpllfy pkgsrc/mk/compiler/*.mk files as a result of not needing to
be included indirectly by bsd.prefs.mk. We remove the special handling
associated with detecting whether the file was included from within
bsd.prefs.mk. These files are now much more straightforward to write
and understand.
* G/C the BSD_PREFS_MK stack mechanism as the only users (compiler/*)
no longer need it.
* Ensure that directories are prepended to the PATH only from within
bsd.pkg.mk.
compiler set. This will cause the libtool configuration found in several
packages to use the correct C++ compiler even though the package doesn't
use C++. This was causing bugs when CXXFLAGS contained flags not
understood by the system gcc-2.95.3.
building of software. For packages that use either buildlink2 or
buildlink3, this would be the wrapper script in ${BUILDLINK_DIR}.
* Garbage-collect _BLNK_WRAP_SETENV.* as those are not needed after
the above changes. Configure and make processes will automatically
find the right compilers in the PATH.
* PKGLIBTOOL and PKGSHLIBTOOL are no longer needed since LIBTOOL and
SHLIBTOOL point to the correct libtools regardless of any
USE_BUILDLINK[23] definitions.
the compiler and that it's behind .tools/bin and .buildlink/bin, regardless
of whether or not we're using gcc3-c or not, or whether it's been installed
yet in the process of satisfying dependencies, etc.
due to a type on gcc.mk that causes the ${_GCC_PREFIX}/bin to always be
prepended to the PATH. The problem that was hiding was "make" resolving
to ${TOOLS_DIR}/bin/make if the package used GNU make, which broke
building since the package Makefile is a BSD Makefile and we passed
PATH to some phases of the build. Fix this by expanding MAKE to the
full path to ${MAKE} in bsd.prefs.mk. We also garbage collect the now
useless checks for PHASES_AFTER_BUILDLINK that cluttered the PREPEND_PATH
code.
(by checking PREPEND_PATH) and only for those phases of the build that
care about the PATH (buildlink or later). We also pass the PATH to
those same phases of the build so that executing ${CC} will work correctly
from custom {pre,do,post}-* targets that occur at buildlink time or
later.
Any additions to DEPENDS/BUILD_DEPENDS or inclusions of buildlink[23].mk
files are deferred till bsd.compiler.mk is included by bsd.pkg.mk. We
allow bsd.compiler.mk to be included by bsd.prefs.mk solely for the purpose
of setting CC_VERSION properly for use by package Makefiles.
There is the surprising behaviour that CC_VERSION won't necessarily have
the correct value at all times until after "make extract" has been
completed (dependencies are installed before "make extract"), so package
Makefile writers should keep that in mind. Just to note that this is
_existing_ behaviour that's preserved by these changes.
USE_LANGUAGES
Lists the languages used in the source code of the package,
and is used to determine the correct compilers to install.
Valid values are: c, c++, fortran, java, objc. The default
is "c".
Packages that don't need any compilers and set this variable to an
empty value, e.g. "USE_LANGUAGES=".
This can probably be combined in some smart way with setting
USE_GCC_SHLIBS and USE_FORTRAN automatically.
changes from the old compiler.mk are:
* Split apart the compiler-specific logic into separate files. This
should make supporting other compilers a bit easier.
* Deprecate all of the USE_* compiler.mk variables, e.g. USE_GCC[23],
USE_SUNPRO, etc. It's all replaced with a new PKGSRC_COMPILER
variable.
* Clean up the GCC handling so that it's all controlled by a single
variable GCC_REQD. The following behaviour is expected:
(a) If USE_PKGSRC_GCC is defined, then pretend there is no GCC on
the system.
(b) If there is no GCC, then the appropriate GCC corresponding to
GCC_REQD is installed and used.
(c) If there is a GCC, if it satisfies GCC_REQD, then use it;
otherwise install and use the appropriate GCC package.
(d) If lang/gcc is installed and GCC_REQD > 2.95.3, then lang/gcc3
is installed and used.
(e) If lang/gcc3 is installed and GCC_REQD = 2.95.3, then gcc3 is
still used instead of installing lang/gcc.
New features include:
* PKGSRC_COMPILER takes a list of values specifying the chain of
compilers to call when building packages. Valid values are:
distcc distributed C/C++ (chainable)
ccache compiler cache (chainable)
gcc GNU
mipspro Silicon Graphics, Inc. MIPSpro
sunpro Sun Microsystems, Inc. WorkShip/Forte/Sun
ONE Studio
The default is "gcc". You can use ccache and/or distcc with an
appropriate PKGSRC_COMPILER setting, e.g. "ccache distcc gcc".
* Change GCC_REQD to hold a list of values that we scan through to
find the highest version of GCC required by the build. Package
Makefiles should now do "GCC_REQD+=..." instead of "GCC_REQD=...".
