This makes binaries independent of the build directory by not embedding
the build directory via RPATH. The tests are partially based on the
existing RuntimePath test, but with the check moved into a POST_BUILD
command such that it can be skipped when the platform lacks support.
Fixes: #18413
These new capabilities enable to manage link directories
Two new properties:
* target properties: LINK_DIRECTORIES and INTERFACE_LINK_DIRECTORIES
One new command
* target_link_directories(): to populate target properties
Fixes: #17215
Run the `clang-format.bash` script to update all our C and C++ code to a
new style defined by `.clang-format`. Use `clang-format` version 6.0.
* If you reached this commit for a line in `git blame`, re-run the blame
operation starting at the parent of this commit to see older history
for the content.
* See the parent commit for instructions to rebase a change across this
style transition commit.
Note: This only allows `OBJECT` libraries to be on the right-hand side
of `target_link_libraries` but still does not link its object-files to
the target on the left-hand side.
Issue: #14778
* Change some functions to take `std::string` instead of
`const char*` in the following classes: `cmMakeFile`, `cmake`,
`cmCoreTryCompile`, `cmSystemTools`, `cmState`, `cmLocalGenerator`
and a few others.
* Greatly reduce using of `const char*` overloads for
`cmSystemTools::MakeDirectory` and `cmSystemTools::RelativePath`.
* Remove many redundant `c_str()` conversions throughout the code.
Some libraries uses the non-conventional SONAME scheme like
`libssl.so.1.1` or `libboost_system.so.1.64.0`, but CMake didn't count on
such versioned libraries. This commit modify regular expressions to match
relaxed format of shared library name for determining various linker options,
especially `RPATH`.
Note that support for one component has been available since v2.8.12.
Fixes: #15938
Add `CMAKE_SYSROOT_COMPILE` and `CMAKE_SYSROOT_LINK` variables to as
operation-specific alternatives to `CMAKE_SYSROOT`. This will be useful
for Android NDKs that compile and link with different sysroot values
(e.g. `r14` with unified headers).
Co-Author: Florent Castelli <florent.castelli@gmail.com>
Add an `IMPORTED_LIBNAME[_<CONFIG>]` target property to specify a library
name to be placed on the link line in place of an interface library
since it has no library file of its own. Restrict use of the property
to imported `INTERFACE` libraries.
This will be particularly useful for find modules that need to provide
imported libraries from system SDKs where the full path to the library
file is not known. Now such find modules will be able to provide an
imported interface library and set `IMPORTED_LIBNAME` to refer to the
SDK library by name.
Issue: #15267
Users may need to add custom `RPATH` entries to be able to run binaries
from their build tree without setting `LD_LIBRARY_PATH`. Provide a way
to do this that does not affect the install-tree `RPATH`.
Per-source copyright/license notice headers that spell out copyright holder
names and years are hard to maintain and often out-of-date or plain wrong.
Precise contributor information is already maintained automatically by the
version control tool. Ultimately it is the receiver of a file who is
responsible for determining its licensing status, and per-source notices are
merely a convenience. Therefore it is simpler and more accurate for
each source to have a generic notice of the license name and references to
more detailed information on copyright holders and full license terms.
Our `Copyright.txt` file now contains a list of Contributors whose names
appeared source-level copyright notices. It also references version control
history for more precise information. Therefore we no longer need to spell
out the list of Contributors in each source file notice.
Replace CMake per-source copyright/license notice headers with a short
description of the license and links to `Copyright.txt` and online information
available from "https://cmake.org/licensing". The online URL also handles
cases of modules being copied out of our source into other projects, so we
can drop our notices about replacing links with full license text.
Run the `Utilities/Scripts/filter-notices.bash` script to perform the majority
of the replacements mechanically. Manually fix up shebang lines and trailing
newlines in a few files. Manually update the notices in a few files that the
script does not handle.
Use clang-tidy's readability-simplify-boolean-expr checker.
After applying the fix-its, revise all changes *very* carefully.
Be aware of false positives and invalid changes.
Run the `Utilities/Scripts/clang-format.bash` script to update
all our C++ code to a new style defined by `.clang-format`.
Use `clang-format` version 3.8.
* If you reached this commit for a line in `git blame`, re-run the blame
operation starting at the parent of this commit to see older history
for the content.
* See the parent commit for instructions to rebase a change across this
style transition commit.
The empty string we add as a link item for an INTERFACE_LIBRARY target
is not a path, so do not mark it as such. The generators currently
tolerate it either way, but only by accident.
The clang-format tool can do a good job formatting most code, but
well-organized streaming blocks are best left manually formatted.
Find blocks of the form
os <<
"...\n"
"...\n"
;
using the command
$ git ls-files -z -- Source |
egrep -v -z '^Source/kwsys/' |
xargs -0 pcregrep -M --color=always -B 1 -A 1 -n \
'<<[^\n]*\n(^ *("[^\n]*("|<<|;)$|;)\n){2,}'
Find blocks of the form
os << "...\n"
<< "...\n"
<< "...\n";
using the command
$ git ls-files -z -- Source |
egrep -v -z '^Source/kwsys/' |
xargs -0 pcregrep -M --color=always -B 1 -A 1 -n \
'<<[^\n]*\n(^ *<<[^\n]*(\\n"|<<|;)$\n){2,}'
Surround such blocks with the pair
/* clang-format off */
...
/* clang-format on */
in order to protect them from update by clang-format. Use the C-style
`/*...*/` comments instead of C++-style `//...` comments in order to
prevent them from ever being swallowed by re-formatting of surrounding
comments.
Sort include directives within each block (separated by a blank line) in
lexicographic order (except to prioritize `sys/types.h` first). First
run `clang-format` with the config file:
---
SortIncludes: false
...
Commit the result temporarily. Then run `clang-format` again with:
---
SortIncludes: true
IncludeCategories:
- Regex: 'sys/types.h'
Priority: -1
...
Commit the result temporarily. Start a new branch and cherry-pick the
second commit. Manually resolve conflicts to preserve indentation of
re-ordered includes. This cleans up the include ordering without
changing any other style.
Use the following command to run `clang-format`:
$ git ls-files -z -- \
'*.c' '*.cc' '*.cpp' '*.cxx' '*.h' '*.hh' '*.hpp' '*.hxx' |
egrep -z -v '(Lexer|Parser|ParserHelper)\.' |
egrep -z -v '^Source/cm_sha2' |
egrep -z -v '^Source/(kwsys|CursesDialog/form)/' |
egrep -z -v '^Utilities/(KW|cm).*/' |
egrep -z -v '^Tests/Module/GenerateExportHeader' |
egrep -z -v '^Tests/RunCMake/CommandLine/cmake_depends/test_UTF-16LE.h' |
xargs -0 clang-format -i
This selects source files that do not come from a third-party.
Inspired-by: Daniel Pfeifer <daniel@pfeifer-mail.de>
1c1c2a12 cmGeneratorTarget: Port ExpandLinkItems away from cmTarget.
c66084f5 cmGeneratorTarget: Port GetImportLinkInterface away from cmTarget.
83c29e39 cmGeneratorTarget: Port ComputeLinkImplementationLibraries away from cmTarget.
19882554 cmGeneratorTarget: Port handleSystemIncludesDep away from cmTarget.
c1f687b1 cmGeneratorTarget: Port GetLinkImplementationLibrariesInternal.
a6e1f05c cmGeneratorTarget: Port ComputeLinkInterface away from cmTarget.
654002fe cmGeneratorTarget: Port ComputeLinkInterfaceLibraries away from cmTarget.
922c8901 cmGeneratorTarget: Port GetLinkInterface away from cmTarget.
eaa5b9cb cmGeneratorTarget: Port cmTargetCollectLinkLanguages away from cmTarget.
f539da12 cmGeneratorTarget: Port GetLinkInterfaceLibraries away from cmTarget.
1c5d70f9 cmGeneratorTarget: Port processILibs away from cmTarget.
064c2488 cmComputeLinkDepends: Port some API to cmGeneratorTarget.
3e428fdc cmGeneratorTarget: Move IsImportedSharedLibWithoutSOName from cmTarget.
110fd2fb cmGeneratorTarget: Move GetOutputTargetType from cmTarget.
e7391699 cmGeneratorTarget: Move HasMacOSXRpathInstallNameDir from cmTarget.
c5718217 cmGeneratorTarget: Move HaveInstallTreeRPATH from cmTarget.
...
The changes to cmComputeLinkInformation.cxx in commit 675ef165 (Allow
LINK_SEARCH_{START,END}_STATIC props to have default values, 2015-08-07)
are unrelated to the feature added by that change and are incorrect.
They lead to cases of extra -Bdynamic flags. Revert them.
Use the CMAKE_LINK_SEARCH_START_STATIC and CMAKE_LINK_SEARCH_END_STATIC
variables to initialize the LINK_SEARCH_START_STATIC and
LINK_SEARCH_END_STATIC target properties respectively.
The change in commit 27252b24 (cmComputeLinkInformation: Simplify
generator object access, 2015-08-02) broke the conditional use of a
target introduced in commit 41abdc17 (cmGeneratorTarget: Move GetSOName
from cmTarget, 2015-08-04). Restore the conditional lookup. Add a test
case that hacks platform information variables to trigger this code
everywhere.
013ada80 cmPolicies: Implement PolicyMap in terms of bitset.
be6664c2 cmPolicies: Implement abstraction for PolicyMap.
de211686 Port to static cmPolicies API.
13981f20 cmPolicies: Make all API static.
23e2bcc8 cmPolicies: Remove unused DefinePolicy method.
5641ba4f cmPolicies: Remove unused cmPolicy class.
3de54497 cmPolicies: Loop over all policies using enum constants.
387aff20 cmPolicies: Trivialize GetPolicyStatus method.
dbf680d6 cmPolicies: Use more-direct ID access.
8c204133 cmPolicies: Implement in terms of public API.
e3a8c029 cmPolicies: Make private method file-static.
cb765af0 cmPolicies: Implement short description access with XMacros.
5df267fa cmPolicies: Implement version check with XMacro.
2235cfeb cmPolicies: Implement id to version with XMacro.
05d84388 cmPolicies: Implement id to string conversion with XMacro.
6eaade8a cmPolicies: Introduce XMacro table for policy data.
...
When CMP0003 was first introduced we wanted to link all libraries by
full path. However, some projects had problems on platforms where
find_library would find /usr/lib/libfoo.so when the project really
wanted to link to /usr/lib/<arch>/libfoo.so and had been working by
accident because pre-CMP0003 behavior used -lfoo to link.
We first tried to address that in commit v2.6.0~440 (Teach find_library
to avoid returning library paths in system directories, 2008-01-23) by
returning just "foo" for libraries in implicit link directories. This
caused problems for projects expecting find_library to always return a
full path. We ended up using the solution in commit v2.6.0~366 (...
switch library paths found in implicit link directories to use -l,
2008-01-31). However, the special case for libraries in implicit link
directories has also proven problematic and confusing.
Introduce policy CMP0060 to switch to linking all libraries by full path
even if they are in implicit link directories. Explain in the policy
documentation the factors that led to the original approach and now to
this approach.
55a73e6b Use the cmJoin algorithm where possible.
8dc8d756 cmStandardIncludes: Add a join algorithm for string containers.
b5813cee cmInstallCommand: Remove unused variable.
Use the clang RemoveCStrCalls tool to automatically migrate the
code. This was only run on linux, so does not have any positive or
negative effect on other platforms.
Casts from std::string -> cmStdString were high on the list of things
taking up time. Avoid such implicit casts across function calls by just
using std::string everywhere.
The comment that the symbol name is too long is no longer relevant since
modern debuggers alias the templates anyways and the size is a
non-issue since the underlying methods are generated since it's
inherited.
