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CMake: try to actually fix the regexes for setting HOST_LINK_VERSION this time (PR21268)

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The regex should not accept an empty version number.

The previous attempt at r223106 failed, and the build was still erroring:

  CMake Error at tools/clang/CMakeLists.txt:269 (string):
    string sub-command REGEX, mode REPLACE regex "[^0-9]*([0-9.]*).*" matched
    an empty string.

llvm-svn: 223333
This commit is contained in:
Hans Wennborg 2014-12-04 01:59:58 +00:00
parent 1486e3a7dc
commit cbef69511c
1 changed files with 4 additions and 4 deletions
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8
clang/CMakeLists.txt
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@ -263,10 +263,10 @@ if (APPLE)
OUTPUT_VARIABLE LD_V_OUTPUT
)
if (NOT HAD_ERROR)
if ("${LD_V_OUTPUT}" MATCHES ".*ld64.*")
string(REGEX REPLACE ".*ld64-([0-9.]*).*" "\\1" HOST_LINK_VERSION ${LD_V_OUTPUT})
elseif ("${LD_V_OUTPUT}" MATCHES "[^0-9]*([0-9.]*).*")
string(REGEX REPLACE "[^0-9]*([0-9.]*).*" "\\1" HOST_LINK_VERSION ${LD_V_OUTPUT})
if ("${LD_V_OUTPUT}" MATCHES ".*ld64-([0-9.]+).*")
string(REGEX REPLACE ".*ld64-([0-9.]+).*" "\\1" HOST_LINK_VERSION ${LD_V_OUTPUT})
elseif ("${LD_V_OUTPUT}" MATCHES "[^0-9]*([0-9.]+).*")
string(REGEX REPLACE "[^0-9]*([0-9.]+).*" "\\1" HOST_LINK_VERSION ${LD_V_OUTPUT})
endif()
else()
message(FATAL_ERROR "${CMAKE_LINKER} failed with status ${HAD_ERROR}")