The variables in this module are used to configure a header file
with defines whose name depends on the name of the target.
As valid names of targets may be invalid for use as defines, convert
the names of the defines used to C identifiers first. This is already
done in C++ code for the DEFINE_SYMBOL property.
This is not as simple as ensuring that the BASE_NAME is a C identifier,
because most of the define names are configurable, and because use of
a BASE_NAME which is not a C identifier, such as 4square can become a
C identifier by specifying a prefix in the generate_export_header
macro.
They can't be used when evaluating link libraries, but they can be
used for include directories and compile definitions. Later they can
be used for compile options.
The idea is to write to a temp file which contains generator
expressions, and at generate time, evaluate the generator expressions,
and write the result to a file.
Because executables on Windows are limited in the length of command line
it is possible to use, it is common to write command line arguments to a
file instead and specify the file as a source of arguments.
This new FILE(GENERATE) subcommand allows the use of generator
expressions to create such files so that they can be used with
add_custom_command for example.
The significant issue with MODULEs is that on Windows, the exported
symbols must be dllexported and they are not imported.
In other export macro implementations this is done by defining an
export macro outside of any ifdef which depends on definitions set
on the command line. However, with cmake we already expect the
DEFINE_SYMBOL to be defined, so the regular EXPORT macro can be
used by such plugins.
The parent commit added a empty_entry_test shared library to the
IncludeDirectories test. Some toolchains fail to create a shared
library with no user-defined symbols, so provide a dummy symbol.
Since commit c519bb2b (XCode: Also qoute [] as needed to set
build-configurations, 2011-04-05) we escape "[]" conditions for
XCODE_ATTRIBUTE_ settings. However, we need to handle the "variant"
condition with a special case to map it only into the settings for the
matching configuration.
a7ba452 Add the JOIN generator expression.
96ec314 Make it possible for any genex to have arbitrary content at the end.
bd638ee Rename the method determining if a genex accepts arbitrary content.
dc742fe Extract the ProcessArbitraryContent method.
Checking if a byte is 0 before checking it for something else doesn't do
anything useful. Also one can be sure that it can't be anything wanted
if the value was set to 0 immediately before.
Refactor lookup of CMAKE_(EXE|MODULE|SHARED)_LINKER_FLAGS(|_<CONFIG>)
variables to ensure all combinations are handled. Use the helper method
AddConfigVariableFlags to simplify the implementation.
.../Source/cmakewizard.cxx: In member function ‘virtual void cmakewizard::AskUser(const char*, cmCacheManager::CacheIterator&)’:
.../Source/cmakewizard.cxx:31:35: warning: conversion to ‘int’ from ‘long unsigned int’ may alter its value [-Wconversion]
if(!fgets(buffer, sizeof(buffer)-1, stdin))
^
.../Source/cmakewizard.cxx: In member function ‘virtual bool cmakewizard::AskAdvanced()’:
.../Source/cmakewizard.cxx:70:35: warning: conversion to ‘int’ from ‘long unsigned int’ may alter its value [-Wconversion]
if(!fgets(buffer, sizeof(buffer)-1, stdin))
The compiler is (partly) right here: sizeof() returns a size_t, which often is
bigger as as int as it is unsigned long or something similar. Add an explicit
cast to get rid of that warning here, the buffer has a size of 4KiB, so the
value will fit into an int on all sane platforms.
Both <string> and <cmSystemTools.h> include <stdio.h> one or the other way. It
looks like the CMake header adds a define that will cause another part of the
system header to be used, resulting in conflicting definitions.
6489015 Remove an endif() followed by an if() for the same condition.
e7813b1 Add a test for Qt5Automoc
27fb96b Make the QtAutomoc test compile with either Qt 4 or Qt 5
When processing link line entries we check for matches with known naming
patterns for static and shared libraries. Teach this logic to recognize
numerical suffixes after shared library names such as "libfoo.so.1".
Stephen Kelly
Kitware Robot
Brad King
Rolf Eike Beer
Cédric OCHS
Matthew Bentham