Calling `project()` or `enable_language()` from a toolchain file will
infinitely recurse since those commands load the toolchain file.
Diagnose and reject this case with an error message instead of crashing
when the stack eventually overflows.
In commit v3.5.0-rc1~272^2~6 (cmGlobalGenerator: Add FindGeneratorTarget
API, 2015-10-25) a lookup was implemented via linear search. Replace it
with an efficient data structure.
Suggested-by: Stephen Kelly <steveire@gmail.com>
Refactoring in commit v3.5.0-rc1~272^2~13 (cmGlobalGenerator: Remove
direct storage of targets, 2015-10-25) replaced an efficient data
structure mapping from target name to cmTarget instance with a linear
search. Lookups through cmGlobalGenerator::FindTarget are done a lot.
Restore the efficient mapping structure with a name indicating its
purpose.
Reported-by: Bartosz Kosiorek <gang65@poczta.onet.pl>
Set a cmLocalGenerator on each instance at compute time. That will
soon be needed to access cmGeneratorTarget instances.
If a cmExportBuildFileGenerator is processed early during configure time as a
result of CMP0024 it must be removed from the list to process later at generate
time.
616f0311 cmGlobalGenerator: Move path computation to Compute.
9eea0486 cmGlobalGenerator: Do more computation at compute time.
2eca0559 cmGlobalGenerator: De-virtualize Compute().
21f428f4 VisualStudio: Replace Compute override with AddExtraIDETargets override.
a9588e90 VisualStudio10: Initialize the LongestSource at generate time.
4407eee0 cmGlobalGenerator: Call AddExtraIDETargets as a hook of Compute().
a09c545d Xcode: Extract a AddExtraIDETargets method.
1fe39020 QtAutogen: Port away from cmLocalGenerator.
59a729b2 QtAutogen: Split initializer class into separate file.
1e83a963 QtAutogen: Split initializer methods into separate class.
12f0e13c QtAutogen: Simplify generator initialization API.
65ff75d3 QtAutogen: Remove unnecessary dereference.
64b78c14 QtAutogen: Move Source initialization to prior loop.
c3c20d3c QtAutogen: Add _automoc.cpp sources before initializing.
8b6ec29d QtAutogen: Move initialization condition to caller.
9470b056 QtAutogen: Move condition to prior loop.
b7491b1c QtAutogen: Move condition to prior loop.
e791c854 QtAutogen: Make some methods static.
6210ec64 QtAutogen: Make internal method private.
a3ceb998 QtAutogen: Don't use members to initialize automoc targets.
dced2fe1 QtAutogen: Rename variable.
f9a77e76 QtAutogen: Don't use a member to store skipped uic files.
c3633e7a QtAutogen: Add missing includes and forward declarations.
The Ninja generator and Visual Studio generators are special-cased for the
QtAutogen feature. In order to reduce the number of custom targets, the Visual
Studio generators prefer to create custom commands instead, and in order to
create appropriate Ninja files, generated rcc files are listed as byproducts.
This requires the use of the GetConfigCommonSourceFiles API of the
cmGeneratorTarget for those generators when initializing the autogen target.
The initializer method is called from Compute() after the cmGeneratorTarget
objects are created, however the initialization of the object directory occurs
later in the InitGeneratorTargets method. That means that the resulting object
locations are computed incorrectly and cached before the object directory is
determined, so the generated buildsystem can not find the object files.
The initialization of the object directory was split from the creation of
cmGeneratorTarget instances in commit 0e0258c8 (cmGlobalGenerator: Split
creation of generator object from initialization., 2015-07-25). The motivation
for the split was to do only what is essential to do early in cases where
cmGeneratorTargets need to be created at configure-time. That is required for
the purpose of implementing policies CMP0024 and CMP0026, and for
try_compile(LINK_LIBRARIES). However, the split was not really necessary.
Compute the object directory in the cmGeneratorTarget constructor instead.
The QtAutogen unit test already tests the use of TARGET_OBJECTS with AUTOMOC,
and that test already passes on Ninja. The reason it already passes is that
the QtAutogen target also uses the AUTORCC feature, and specifies several qrc
files in its SOURCES. Later in the Compute algorithm (after the
InitGeneratorTargets call), the rcc files are determined and target->AddSource
is called. The AddSource call clears the previously mentioned cache of source
files, causing it to be regenerated when next queried, this time taking account
of the object directory.
Extend the test suite with a new target which does not make use of AUTORCC with
qrc files so that the test added alone would break without the fix in this
commit.
6d8a125e cmQtAutoGenerators: Prefer a generator to access global generator.
5f66900e cmGlobalGenerator: Port Find API to cmMakefile.
c5b8841f cmGlobalGenerator: Create global targets from cmMakefiles.
8f75ea3b cmGlobalGenerator: Port global target creation to cmMakefile.
56f0540b cmGlobalGenerator: Port Configure-time check to cmMakefile.
19b546ef cmGlobalGenerator: Base final target property computation on Makefiles.
f8be9ba9 cmGlobalGenerator: Base progress on Makefiles, not LocalGenerators.
bc1097e3 cmExportLibraryDependenciesCommand: Port to cmMakefile.
204aecdf cmGlobalGenerator: Port configure-time code to cmMakefile.
3dd6f0a5 cmake: Port configure-time code to cmMakefile.
73e4df99 cmGlobalGenerator: Store a container of cmMakefiles.
19369937 cmGeneratorTarget: Port internal type to cmGeneratorTarget.
32f131b0 cmGeneratorTarget: Prefer the local generator to access the global.
nmake and jom generators no longer warn about missing INCLUDE/LIB
environment variables unless the C/CXX compiler cannot be found. This
is useful if the user does not want to use these generators with the
Visual C++ compiler, or they do not want to enable any language.
Brad King
Stephen Kelly
James Johnston