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* Sanitize linker name to parse implicit link line (#14154)Brad King2013-05-171-0/+1
| | | | | | | | Teach CMakeParseImplicitLinkInfo to convert the CMAKE_LINKER file name to a regular expression that matches only the original name. Escape special characters like '+' so they are not treated as regex syntax. Extend the ImplicitLinkInfoTest to test handling of a CMAKE_LINKER value with many special characters.
* Recognize ld with toolchain prefix (#13960)Brad King2013-05-061-1/+1
| | | | | Teach CMAKE_PARSE_IMPLICIT_LINK_INFO to recognize linker invocations of the form "<toolchain-prefix>-ld" e.g. "x86_64-pc-linux-gnu-ld".
* Merge topic 'implicit-lib-canonical-path'Brad King2013-02-081-0/+6
|\ | | | | | | | | 10e8b2d Normalize full paths in implicit link library list
| * Normalize full paths in implicit link library listBrad King2013-02-061-0/+6
| | | | | | | | | | | | | | | | | | | | Teach CMakeParseImplicitLinkInfo to convert implicit link library full paths to a canonical form. This makes them more reproducible in case different language compiler front-ends add the same library by different paths e.g. ".../libA.a" and "...//libA.a". Add a case to the CMake.ImplicitLinkInfo test to cover removal of extra slashes from both library and directory paths.
* | OS X: Detect implicit linker framework search pathsBrad King2012-12-111-14/+26
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Previously we hard-coded a list of implicit framework directories but did not account for CMAKE_OSX_SYSROOT or for changes to the list across OS X versions. Instead we should automatically detect the framework directories for the active toolchain. The parent commit added the "-Wl,-v" option to ask "ld" to print its implicit directories. It displays a block such as: Framework search paths: /... Parse this block to extract the list of framework directories. Detection may fail on toolchains that do not list their framework directories, such as older OS X linkers. Always treat the paths <sdk>/Library/Frameworks <sdk>/System/Library/Frameworks <sdk>/Network/Library/Frameworks # Older OS X only /System/Library/Frameworks as implicit. Note that /System/Library/Frameworks should always be considered implicit so that frameworks CMake finds there will not override the SDK copies.
* | OS X: Detect implicit link directories on modern toolchainsBrad King2012-12-111-3/+26
|/ | | | | | | | | | | | | | | | | | | | | | | | | We detect the implicit link directories for the toolchain by adding a flag to get verbose output from the compiler front-end while linking the ABI detection binary. Newer OS X toolchains based on Clang do not add the implicit link directories with -L options to their internal invocation of "ld". Instead they use a linker that comes with the toolchain and is already configured with the proper directories. Add the "-Wl,-v" option to ask "ld" to print its implicit directories. It displays them in a block such as: Library search paths: /... Parse this block to extract the implicit link directories. While at it, remove the checks introduced by commit efaf335b (Skip implicit link information on Xcode, 2009-07-23) and commit 5195a664 (Skip implicit link info for multiple OS X archs, 2009-09-22). Discard the non-system link directories added by Xcode. Discard all detected implicit libraries in the multi-architecture case but keep the directories. The directories are still useful without the libraries just to suppress addition of explicit -L options for them.
* Absoft: Detect implicit link libraries on Linux and MacBrad King2011-05-201-3/+5
| | | | | | | | Use the "-X -v" flag to the Absoft front-end to pass "-v" to the gcc it invokes under the hood. Teach CMakeParseImplicitLinkInfo to exclude linker version lines from consideration as link lines. Fix parsing of Sun's linker search path option "-Y..." to avoid conflict with the Mac linker option "-Y<num>".
* Detect object files in implicit link informationBrad King2010-12-091-1/+6
| | | | | | The NAG Fortran compiler implicitly passes object files by full path to the linker. Teach CMakeParseImplicitLinkInfo to parse object files that match some tool-specific regular expression.
* Modules: Fix spelling 'To distributed' -> 'To distribute'Todd Gamblin2010-08-091-1/+1
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* Remove non-language implicit link dependenciesBrad King2009-11-051-5/+16
| | | | | | | | | | | | | | | | Some compilers use implicit link options of the form -lcrt*.o -lgcc* -lSystem (on Mac) -lSystemStubs (on Mac) that provide system-wide symbols not specific to any language. These need not be listed explicitly for mixed-language linking. We teach CMake to remove the above items from the implicit library list of each language. This change makes it possible to mix GNU compiler versions in some cases.
* More robust implicit link line detection regexBrad King2009-10-071-1/+3
| | | | | | | | The regex used by CMAKE_PARSE_IMPLICIT_LINK_INFO to detect link lines should not match lines that happen to have ".../ld.../..." in them. A linker name should match only as the last component of a path. See issue #9666.
* Log implicit link line detection regexBrad King2009-10-061-0/+1
| | | | | | | | | | This commit teaches the CMAKE_PARSE_IMPLICIT_LINK_INFO function to log the regex it uses to detect the linker invocation line. The regex is computed from the CMAKE_LINKER if it is found, so it might change. A strange value might match the wrong line and cause implicit link info extraction to fail. See issue #9666.
* Log implicit link information parsing actionsBrad King2009-10-061-1/+21
| | | | | | | This commit teaches the CMAKE_PARSE_IMPLICIT_LINK_INFO function to log its actions. We store the log in CMakeFiles/CMakeOutput.log at the top of the project build tree. This will make diagnosis of implicit link information parsing problems easier.
* Convert CMake non-find modules to BSD LicenseBrad King2009-09-281-0/+13
| | | | | | | 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.
* Recognize linker commands without pathsBrad King2009-07-291-1/+1
| | | | | | | This teaches the implicit link line parsing code to recognize link lines that do not have a full path to the linker executable. At least one version of the Intel compiler on Linux invokes the linker as just "ld" instead of "/usr/bin/ld".
* BUG: Parse implicit link editor -z*extract optionsBrad King2009-07-281-1/+4
| | | | | | | | The Sun Fortran compiler passes -zallextract and -zdefaultextract to the linker so that all objects from one of its archives are included in the link. This teaches the implicit options parser to recognize the flags. We need to pass them explicitly on C++ link lines when Fortran code is linked.
* ENH: Implicit link info for C, CXX, and FortranBrad King2009-07-231-0/+71
This teaches CMake to detect implicit link information for C, C++, and Fortran compilers. We detect the implicit linker search directories and implicit linker options for UNIX-like environments using verbose output from compiler front-ends. We store results in new variables called CMAKE_<LANG>_IMPLICIT_LINK_LIBRARIES CMAKE_<LANG>_IMPLICIT_LINK_DIRECTORIES The implicit libraries can contain linker flags as well as library names.
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