Add generator expressions that combine and use boolean test results:

 $<0:...>         = empty string (ignores "...")
 $<1:...>         = content of "..."
 $<AND:?[,?]...>  = '1' if all '?' are '1', else '0'
 $<OR:?[,?]...>   = '0' if all '?' are '0', else '1'
 $<NOT:?>         = '0' if '?' is '1', else '1'

These will be useful to evaluate (future) boolean query expressions and
condition content on the results.  Include tests and documentation.

68bc863d Merge branch 'master' into cleanup-style
a05eba57 CMakeVersion.bash: Update sed expression for lower-case 'set'
3c0488d7 Fix WarnUnusedUnusedViaUnset test pass/fail regex
6c2c483e Remove trailing TAB from NSIS.template.in
9db31162 Remove CMake-language block-end command arguments
77543bde Convert CMake-language commands to lower case
7bbaa428 Remove trailing whitespace from most CMake and C/C++ code
be9db989 Merge topic 'watcom-compiler-version'
af42ae4f Watcom: Simplify compiler version detection (#11866)

Conflicts:
	Source/CMakeVersion.cmake

Since commit 77543bde (Convert CMake-language commands to lower case,
2012-08-13) the CMakeVersion.cmake file contains lower-case 'set'
commands.  Teach CMakeVersion.bash to replace the lower-case name
instead of the old upper-case 'SET'.

After conversion of Modules .cmake files to lower case the
FAIL_REGULAR_EXPRESSION for this test matched warnings in modules other
than the test line itself.  Make the pass and fail regular expressions
specific to the file containing the lines they are testing.

This was missed by commit 7bbaa428 (Remove trailing whitespace from most
CMake and C/C++ code, 2012-08-13) which only removed trailing spaces,
not TABs.

Ancient versions of CMake required else(), endif(), and similar block
termination commands to have arguments matching the command starting the
block.  This is no longer the preferred style.

Run the following shell code:

for c in else endif endforeach endfunction endmacro endwhile; do
    echo 's/\b'"$c"'\(\s*\)(.\+)/'"$c"'\1()/'
done >convert.sed &&
git ls-files -z -- bootstrap '*.cmake' '*.cmake.in' '*CMakeLists.txt' |
egrep -z -v '^(Utilities/cm|Source/kwsys/)' |
egrep -z -v 'Tests/CMakeTests/While-Endwhile-' |
xargs -0 sed -i -f convert.sed &&
rm convert.sed

Ancient CMake versions required upper-case commands.  Later command
names became case-insensitive.  Now the preferred style is lower-case.

Run the following shell code:

cmake --help-command-list |
grep -v "cmake version" |
while read c; do
    echo 's/\b'"$(echo $c | tr '[:lower:]' '[:upper:]')"'\(\s*\)(/'"$c"'\1(/g'
done >convert.sed &&
git ls-files -z -- bootstrap '*.cmake' '*.cmake.in' '*CMakeLists.txt' |
egrep -z -v '^(Utilities/cm|Source/kwsys/)' |
xargs -0 sed -i -f convert.sed &&
rm convert.sed

Our Git commit hooks disallow modification or addition of lines with
trailing whitespace.  Wipe out all remnants of trailing whitespace
everywhere except third-party code.

Run the following shell code:

git ls-files -z -- \
 bootstrap doxygen.config '*.readme' \
 '*.c' '*.cmake' '*.cpp' '*.cxx' \
 '*.el' '*.f' '*.f90' '*.h' '*.in' '*.in.l' '*.java' \
 '*.mm' '*.pike' '*.py' '*.txt' '*.vim' |
egrep -z -v '^(Utilities/cm|Source/(kwsys|CursesDialog/form)/)' |
egrep -z -v '^(Modules/CPack\..*\.in)' |
xargs -0 sed -i 's/ \+$//'

af42ae4f Watcom: Simplify compiler version detection (#11866)

e88bae77 Xcode: Run xcode-select to find Xcode version file (#13463)

822c1eaf Do not include directories which are part of the package install prefix.

67f11cf1 FindSelfPackers: fix typo (#13456)

76d6c593 Clean up documentation formatting so that it is rendered properly in HTML.

b237dbd8 Xcode: Fix object library references in multi-project trees (#13452)

7e58e5bb Prefer generic system compilers by default for C, C++, and Fortran
796e3373 Factor common code out of CMakeDetermine(ASM|C|CXX|Fortran)Compiler
b708f1a2 CMakeDetermine(C|CXX)Compiler: Consider Clang compilers

6c8722fa Fix typo direcotry -> directory (and similar) [#13444]

5797512c SelectLibraryConfiguration: generate correct output when input vars are lists

3cfb68d9 FindOpenSSL: remove leftover comment
fc798ed6 FindOpenSSL: cleanup path hints
c78a7d11 FindOpenSSL: let CMake handle environment variable HINTS
74645193 FindOpenSSL: use SelectLibraryConfigurations
4b793ad1 FindOpenSSL: find cross-compiled OpenSSL from MinGW (#13431)

4ea5dc5b Eclipse: fix #13358: don't create bad linked resources

53cc1026 Eclipse: improve (fix ?) version detection on OSX
bcccddc7 Eclipse: add support for the 4.2 Juno release (#13367)

af80da34 remove lib64 Unix paths if the respective lib path is also given
733726ed find_library: Fix mixed lib->lib64 (non-)conversion cases (#13419)
54add62f find_library: Simplify lib->lib<arch> expansion
6ca2f82d find_library: Refactor lib->lib64 conversion
1fe4b82a find_library: Add test covering lib->lib64 cases

4ddd3b9f Use OUTPUT_NORMAL instead of OUTPUT_MERGE for cmake -E chdir.

214589b1 Add ability to run as a ctest -S script also

3a17311b Release: Temporarily exclude ExternalProject test on cygwin

Since commit c198730b (Detect Watcom compiler version with its id,
2011-12-07) the CMAKE_(C|CXX)_COMPILER_VERSION variables are set for the
Watcom compiler.  Use these in Windows-wcl386.cmake to set the old
WATCOM1* version variables.  This avoids using the old EXECUTE_PROCESS
command which failed due to extra quotes anyway.

Multiple versions of Xcode may be installed in different locations.
Run "xcode-select --print-path" to detect the active Xcode location
and parse its Contents/version.plist file.  Note that the Xcode.app
directory name may vary in developer versions.

This fix bug #13451. The bug prevents theorerically relocatable RPM package
to be installed properly.
Signed-off-by: Eric NOULARD <eric.noulard@gmail.com>