Commit Graph

66 Commits

Author SHA1 Message Date
Daniel Pfeifer 5d0d980d99 Use string(APPEND) in Modules
Automate with:

find Modules -type f -print0 | xargs -0 perl -i -0pe \
's/set\(([a-zA-Z0-9_]+)(\s+)"\$\{\1\}([^"])/string(APPEND \1\2"\3/g'
2016-07-28 00:41:13 +02:00
Brad King f6c2189495 Modules: Rename internal platform-specific compiler determination modules
Rename Modules/Platform/<os>-<lang>.cmake files to
Modules/Platform/<os>-Determine-<lang>.cmake to clarify their role.
For compatibility with user-provided modules, load the old names
if they exist.
2016-06-02 09:51:43 -04:00
Melven Roehrig-Zoellner 8c4f100a56 Fortran: Fix platform id detection on mingw-w64
On mingw-w64 the GNU Fortran compiler does not define `__MINGW32__` or
any similar indicator.  Fix `CMAKE_Fortran_PLATFORM_ID` detection in
this case by falling back to preprocessing a `.c` source file even
when the compiler id is already detected.
2016-04-05 09:50:14 -04:00
Melven Roehrig-Zoellner 66fa61439d CMakeDetermineFortranCompiler: Modernize conventions
Suggested-by: Ben Boeckel <ben.boeckel@kitware.com>
2016-04-05 09:44:09 -04:00
Chuck Atkins 71e5f253f9 Fortran: Add ftn, the Cray compiler wrapper, to the default search. 2015-12-04 10:28:03 -05:00
Brad King 99d160385e CMakeDetermineCompilerId: Use per-language regex to match Xcode compiler tool
Move the Ld invocation match expression from CMakeDetermineCompilerId
into CMakeDetermine{C,CXX,Fortran}Compiler so that it can be specified
on a per-language basis.
2015-06-30 10:14:08 -04:00
Brad King 7cd539b163 Add support for Concurrent Fortran 77 Compiler
The Concurrent Fortran compiler (ccur.com) is available on Linux and can
be used much like the GNU Fortran compiler.  Currently it has no
preprocessor symbols to identify it so we need to detect it by matching
compiler output.

Suggested-by: Anthony Ette <Anthony.R.Ette@controlsdata.com>
2015-06-18 11:36:12 -04:00
Brad King c65a060e1b CMakeDetermineCompilerId: Optionally try some flags before no flags
Teach CMAKE_DETERMINE_COMPILER_ID to optionally try detecting the
compiler id using some given flags before trying to detect it with no
special flags.  This will be useful for Fortran detection to distinguish
some compilers that use the preprocessors of others but have no macro of
their own by getting verbose output.
2015-06-18 10:59:35 -04:00
Brad King e6ebc814df Fortran: Add infrastructure to detect compiler version (#15372)
Fortran does not offer syntax to compose a string literal at
preprocessing time from numeric compuations.  Instead encode each digit
of each component as a separate INFO string and compose them in CMake
code after extraction.  Support MAJOR, MINOR, PATCH, and TWEAK
components with up to 8 digits each.
2015-02-19 09:26:27 -05:00
Ben Boeckel 29c3edb87a Avoid if() quoted auto-dereference
When testing CMAKE_<LANG>_COMPILER_ID values, do not explicitly
dereference or quote the variable. We want if() to auto-dereference the
variable and not its value. Also replace MATCHES with STREQUAL where
equivalent.
2014-10-20 11:49:16 -04:00
Rolf Eike Beer 7eacbaed4d Replace MATCHES ".+" tests with NOT STREQUAL "" 2014-04-14 18:17:23 +02:00
Rolf Eike Beer b0b4b4602f Remove .* expressions from beginning and end of MATCHES regexs
All these expressions work the same:
  "foo"
  ".*foo.*"
  "^.*foo.*$"

This assumes that the "Intel*" expressions were meant to be "Intel.*".
2014-04-14 18:17:11 +02:00
Brad King 8c9bfac384 Xcode: Convert forced CMAKE_<LANG>_COMPILER to full path if possible
During cross-compiling the toolchain file may use CMakeForceCompiler to
force a compiler setting.  When using the Xcode generator try to convert
it to a full path by searching the PATH as is done for the Makefile
generators.
2014-03-10 17:12:00 -04:00
Brad King 6852fb8034 CMakeDetermine*Compiler: Factor out search for compiler in PATH
Factor out a _cmake_find_compiler_path helper macro to avoid duplication
of the search for a full path to the compiler.
2014-03-10 17:12:00 -04:00
Stephen Kelly d2dea79b36 CMakeDetermine*Compiler: Fix typo 'lile' => 'like' 2014-01-22 08:43:58 -05:00
Daniele E. Domenichelli 15610bb5b1 Drop use of configure_file IMMEDIATE option
Since commit 7d47c693 (Drop compatibility with CMake < 2.4, 2013-10-08)
we no longer need to use the configure_file IMMEDIATE option to support
compatibility modes less than 2.0.
2013-11-13 10:12:17 -05:00
Brad King 332771c942 CMakeDetermine*Compiler: Remove temporary cache entry
When the user or toolchain file sets CMAKE_<LANG>_COMPILER to a name
without a path we use find_program with CMAKE_<LANG>_COMPILER_WITH_PATH
to search for the tool.  Remove the temporary cache entry afterward to
avoid exposing it to projects.  It is not set by other logic paths so no
one should be using it.
2013-10-24 11:34:07 -04:00
Brad King af40e8c312 VS: Detect Intel Fortran compiler id and version
Teach CMakeDetermineCompilerId to use a .vfproj project file to
build the Fortran compiler id source file under the Visual Studio
generators.
2013-10-18 09:55:59 -04:00
Alex Neundorf 12b25df882 Determine C/CXX/Fortran compiler: fix indentation
Alex
2013-03-14 21:47:49 +01:00
Alex Neundorf 7baa55ac0b Determine C/CXX/Fortran compiler: minor restructuring
No functional changes, only change the way the if()-condition works,
to make it easier to add more cases.

Alex
2013-03-14 21:47:38 +01:00
Alex Neundorf 7924aacbfa CMakeDetermineFortranCompiler: add support for cross-compiling (#13379)
This adds the same support code for cross compiling to
CMakeDetermineFortranCompiler as there is already in the
C and CXX versions of this file.

Alex
2012-09-11 11:20:51 -04:00
Brad King 7195aca54f Make platform information files specific to the CMake version
At the top of a build tree we configure inside the CMakeFiles directory
files such as "CMakeSystem.cmake" and "CMake<lang>Compiler.cmake" to
save information detected about the system and compilers in use.  The
method of detection and the exact results store varies across CMake
versions as things improve.  This leads to problems when loading files
configured by a different version of CMake.  Previously we ignored such
existing files only if the major.minor part of the CMake version
component changed, and depended on the CMakeCache.txt to tell us the
last version of CMake that wrote the files.  This led to problems if the
user deletes the CMakeCache.txt or we add required information to the
files in a patch-level release of CMake (still a "feature point" release
by modern CMake versioning convention).

Ensure that we always have version-consistent platform information files
by storing them in a subdirectory named with the CMake version.  Every
version of CMake will do its own system and compiler identification
checks even when a build tree has already been configured by another
version of CMake.  Stored results will not clobber those from other
versions of CMake which may be run again on the same tree in the future.
Loaded results will match what the system and language modules expect.

Rename the undocumented variable CMAKE_PLATFORM_ROOT_BIN to
CMAKE_PLATFORM_INFO_DIR to clarify its purpose.  The new variable points
at the version-specific directory while the old variable did not.
2012-08-24 10:52:23 -04:00
Brad King 965a69dcaa Xcode: Detect the compiler id and tool location
Configure a hand-generated Xcode project to build the compiler id source
file since we cannot run the compiler command-line tool directly.  Add a
post-build shell script phase to print out the compiler toolset build
setting.  Run xcodebuild to compile the identification binary.  Parse
the full path to the compiler tool from the xcodebuild output.
2012-08-22 15:14:33 -04:00
Brad King b8b5c8342a Re-order C/C++/Fortran compiler determination logic
Re-organize CMakeDetermine(C|CXX|Fortran)Compiler.cmake to search for
the compiler command-line tool only under generators for which it makes
sense.  For the Visual Studio generators we do not expect to find the
compiler tool from the environment, nor would we use the result anyway.

Furthermore, set CMAKE_${lang}_COMPILER_ID_TEST_FLAGS only when it has a
chance to be used.  Extract _CMAKE_TOOLCHAIN_LOCATION from the compiler
path after running the compiler id step so in the future that step can
help find the path to the compiler.
2012-08-22 15:14:33 -04:00
Kitware Robot 9db3116226 Remove CMake-language block-end command arguments
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
2012-08-13 14:19:16 -04:00
Kitware Robot 77543bde41 Convert CMake-language commands to lower case
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
2012-08-13 14:19:16 -04:00
Kitware Robot 7bbaa4283d Remove trailing whitespace from most CMake and C/C++ code
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/ \+$//'
2012-08-13 14:18:39 -04:00
Brad King 7e58e5bb68 Prefer generic system compilers by default for C, C++, and Fortran
Teach CMake to prefer the system default compiler automatically when no
compiler is specified.  By default use "cc" for C, "CC" for C++, and
"f95" for Fortran.  Load a new Platform/<os>-<lang>.cmake module to
allow each platform to specify for each language its system compiler
name(s) and/or exclude certain names.

Create Platform/(CYGWIN|Darwin|Linux|Windows)-CXX.cmake modules to
specify "c++" as the system C++ compiler name for these platforms.  On
systems that use case-insensitive filesystems exclude C++ compiler names
that are distinguished from C compiler names only by case.

This will change the default compiler selection for existing build
scripts that do not specify a compiler when run on machines with
separate system and GNU compilers both installed in the PATH.  We do not
make this change in default behavior lightly.  However:

(1) If a given build really needs specific compilers one should specify
    them explicitly e.g. by setting CC, CXX, and FC in the environment.

(2) The motivating case is to prefer the system Clang on newer OS X
    systems over the older GNU compilers typically also installed.  On
    such systems the names "cc" and "c++" link to Clang.  This is the
    first platform known to CMake on which "c++" is not a GNU compiler.
    The old behavior selected "gcc" for C and "c++" C++ and therefore
    chooses GNU for C and Clang for C++ by default.  The new behavior
    selects GNU or Clang consistently for both languages on older or
    newer OS X systems, respectively.

(3) Other than the motivating OS X case the conditions under which the
    behavior changes do not tend to exist in default OS installations.
    They typically occur only on non-GNU systems with manually-installed
    GNU compilers.

(4) The consequences of the new behavior are not dire.  At worst the
    project fails to compile with the system compiler when it previously
    worked with the non-system GNU compiler.  Such failure is easy to
    work around (see #1).

In short this change creates a more sensible default behavior everywhere
and fixes poor default behavior on a widely-used platform at the cost of
a modest change in behavior in less-common conditions.
2012-08-02 13:26:01 -04:00
Brad King 796e33734d Factor common code out of CMakeDetermine(ASM|C|CXX|Fortran)Compiler
The compiler candidate list selection and search code for C, C++, ASM,
and Fortran languages was duplicated across four modules.  To look for
compilers adjacent to already-enabled languages the C and CXX modules
each used _CMAKE_USER_(C|CXX)_COMPILER_PATH and the ASM module used
_CMAKE_TOOLCHAIN_LOCATION.  Since commit 4debb7ac (Bias Fortran compiler
search with C/C++ compilers, 2009-09-09) CMake prefers Fortran compilers
matching the vendor and directory of an enabled C or C++ compiler.

Factor out the common functionality among the four languages into a new
CMakeDetermineCompiler module.  Generalize the Fortran implementation so
that all languages may each use the vendor and directory of the other
languages that have already been enabled.  For now do not list any
vendor-specific names for C, C++, or ASM so that only the directory
preference is used for these languages (existing behavior).
2012-08-02 11:33:18 -04:00
Rolf Eike Beer bb5f48fe99 detect "pgfortran" as PGI Fortran compiler (#12425)
See http://www.pgroup.com/doc/pgiug.pdf, page xviii.
2012-02-08 20:26:27 +01:00
Brad King 38aab37962 Set CMAKE_<lang>_COMPILER_ID for VS generators
Currently the VS generators do not support Intel C/C++ .icproj files and
the MS tools do not include a Fortran compiler.  Therefore we can always
set the C and CXX compiler IDs to "MSVC" and the Fortran ID to "Intel".

This fixes a regression in support for the Intel Fortran compiler under
the VS plugin introduced by commit cd43636c (Modernize Intel compiler
info on Windows, 2010-12-16).  The commit moved the compiler information
into platform files that only load when the proper compiler id is set.
It worked for the NMake Makefiles generator but not for the VS IDE
generator because it did not set the compiler id.
2011-09-02 08:56:01 -04:00
Brad King ac5b999fff Add Absoft Fortran compiler id and basic flags
Identification at preprocessing time depends on definition of __ABSOFT__
to be added in service pack V11.1.2 of the compiler.
2011-05-20 08:53:36 -04:00
Brad King 6f2482aa97 Merge topic 'intel-compiler-windows-info'
cd43636 Modernize Intel compiler info on Windows
58c73c4 Detect Fortran target architecture on Windows
2010-12-21 13:58:39 -05:00
Brad King 58c73c43f6 Detect Fortran target architecture on Windows
Commit 4430bccc (Change the way 32/64 bit compiles are detected with
MSVC and intel, 2009-11-19) added detection of the target processor to C
and CXX language builds with MS and Intel tools.  Do the same for Intel
Fortran for Windows (ifort).  Use /machine:<arch> to link executables.
2010-12-16 09:33:06 -05:00
Brad King 24cc3d4817 Recognize the NAG Fortran compiler
The Numerical Algorithms Group (NAG) Fortran compiler does not document
a preprocessor macro to identify it.  Check for identifying output using
the -V option.
2010-12-09 17:51:47 -05:00
Todd Gamblin 2cde67a781 Modules: Fix spelling 'To distributed' -> 'To distribute' 2010-08-09 08:48:31 -04:00
C. Bergström 36d850b87e Detect PathScale Fortran compiler tools
Include names pathf(90|95|2003) in the search for a Fortran compiler.
Also associate the names with PathScale for the vendor-specific search.
2010-04-26 13:31:52 -04:00
Brad King 11dcef910a Recognize the Compaq Fortran compiler
The compiler documents symbols _DF_VERSION_ and _VF_VERSION_ but they do
not seem to be available to the preprocessor.  Instead we add a vendor
query table entry for Compaq.  Running "f90 -what" produces

  Compaq Visual Fortran Optimizing Compiler Version ...

This clearly identifies the compiler.
2010-02-02 07:21:36 -05:00
Brad King 55275e017d New decision method to enable Fortran tests
CMake does not enable Fortran for its own build, but it needs to find a
Fortran compiler to know if it is possible to enable Fortran tests.
Previously we searched for a hard-coded list of Fortran compilers which
was duplicated from the CMakeDetermineFortranCompiler.cmake module.  We
now run CMake on a small test project that enables the Fortran language
and reports the compiler it found.  This represents a more realistic
check of whether the Fortran tests will be able to find a compiler.
2009-12-10 12:16:38 -05:00
Brad King 3a666595c9 Convert CMake non-find modules to BSD License
This adds copyright/license notification blocks CMake's non-find
modules.  Most of the modules had no notices at all.  Some had notices
referring to the BSD license already.  This commit normalizes existing
notices and adds missing notices.
2009-09-28 11:46:51 -04:00
Brad King 4debb7ac69 Bias Fortran compiler search with C/C++ compilers
When CMAKE_Fortran_COMPILER and ENV{FC} are not defined CMake searches
for an available Fortran compiler.  This commit teaches the search code
to look for compiler executables next to the C and C++ compilers if they
are already found.  Furthermore, we bias the compiler executable name
preference order based on the vendor of the C and C++ compilers, which
increases the chance of finding a compatible compiler by default.
2009-09-09 16:39:47 -04:00
Brad King ef756b96e4 ENH: Identify Fortran compilers with fixed format
This enhances the Fortran compiler id detection by using a source that
can compile either as free or fixed format.  As long as the compiler
knows it should preprocess the source file (.F) the identification can
work.  Even free-format compilers may try fixed-format parsing if the
user specifies certain flags, so we must support both.
2009-06-25 08:45:19 -04:00
Bill Hoffman c224659b66 BUG: fix for #8089, fix rebuild with fortran and -D 2008-11-14 17:45:56 -05:00
Brad King 9211b0d234 ENH: Improvied compiler identification robustness
- Write a single source file into the compiler id directory
  - This avoid requiring the compiler to behave correctly with
    respect to include rules and the current working directory
  - Helps to identify cross-compiling toolchains with unusual
    default behavior
2008-02-25 09:23:14 -05:00
Brad King a75079d9e0 ENH: When detecting the compiler id try compiling only to an object file. 2008-02-11 17:00:54 -05:00
Brad King c12a7e388d BUG: When configuring compiler information files into the CMakeFiles directory in the project build tree, use IMMEDIATE option for CONFIGURE_FILE explicitly. It is needed in case the user sets CMAKE_BACKWARDS_COMPATIBILITY to 2.0 or lower. 2008-02-04 10:04:23 -05:00
Brad King bbbb2be765 BUG: When forcing the C and CXX compilers do not try to detect the ABI information. Cleanup configured language compiler info files by always using @ONLY. This addresses bug#6297. 2008-02-03 17:24:50 -05:00
Brad King 4b2218045d ENH: Add support to CMAKE_DETERMINE_COMPILER_ID macro to try building the id source more than once with different extra flags added to the compiler. Use the support to correctly identify the Intel Fortran compiler on windows which does not preprocess by default without special flags. 2008-01-07 10:27:28 -05:00
Alexander Neundorf d9bbc3f45f STYLE: fdcorrect comments about FC/CC
Alex
2007-05-18 09:16:07 -04:00
Brad King 8780da000a BUG: If the Fortran CompilerId source fails to compile it should not be a failure. It is only expected to work for Fortran90 compilers. 2007-05-18 09:08:49 -04:00