Commit Graph

9 Commits

Author SHA1 Message Date
Todd Gamblin 2cde67a781 Modules: Fix spelling 'To distributed' -> 'To distribute' 2010-08-09 08:48:31 -04:00
Brad King 56d4619984 Remove non-language implicit link dependencies
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.
2009-11-05 12:17:08 -05:00
Brad King fff1c6d275 More robust implicit link line detection regex
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.
2009-10-07 08:43:51 -04:00
Brad King 20e6ac320d Log implicit link line detection regex
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.
2009-10-06 16:31:43 -04:00
Brad King b9850a614e Log implicit link information parsing actions
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.
2009-10-06 15:16:12 -04:00
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 edad475e26 Recognize linker commands without paths
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".
2009-07-29 16:07:19 -04:00
Brad King 836447663e BUG: Parse implicit link editor -z*extract options
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.
2009-07-28 08:36:11 -04:00
Brad King 07ea19ad1f ENH: Implicit link info for C, CXX, and Fortran
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.
2009-07-23 10:07:25 -04:00