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authorBrad King <brad.king@kitware.com>2018-11-26 18:06:12 (GMT)
committerBrad King <brad.king@kitware.com>2018-11-26 18:13:58 (GMT)
commit0369362132b3deae30828299131647cc3754abeb (patch)
treedaa1f2fa17b134b398ede90f34f390a39358cb95 /Modules
parent05a2ca7f87b9ae73f373e9967fde1ee5210e33af (diff)
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FindBoost: Restore finding without CXX language enabled
Since commit v3.13.0~7^2 (FindBoost: Improve compiler prefix detection for GCC 5+ and clang 4+, 2018-11-07) we run the internal `_Boost_COMPILER_DUMPVERSION` macro on all UNIX platforms. Teach the macro to tolerate missing `CMAKE_CXX_COMPILER_VERSION`, which occurs when the CXX language is not enabled. Fixes: #18624
Diffstat (limited to 'Modules')
-rw-r--r--Modules/FindBoost.cmake9
1 files changed, 3 insertions, 6 deletions
diff --git a/Modules/FindBoost.cmake b/Modules/FindBoost.cmake
index 3e011ad..bfab4ca 100644
--- a/Modules/FindBoost.cmake
+++ b/Modules/FindBoost.cmake
@@ -409,15 +409,12 @@ endmacro()
#-------------------------------------------------------------------------------
-#
-# Runs compiler with "-dumpversion" and parses major/minor
-# version with a regex.
-#
+# Convert CMAKE_CXX_COMPILER_VERSION to boost compiler suffix version.
function(_Boost_COMPILER_DUMPVERSION _OUTPUT_VERSION _OUTPUT_VERSION_MAJOR _OUTPUT_VERSION_MINOR)
string(REGEX REPLACE "([0-9]+)\\.([0-9]+)(\\.[0-9]+)?" "\\1"
- _boost_COMPILER_VERSION_MAJOR ${CMAKE_CXX_COMPILER_VERSION})
+ _boost_COMPILER_VERSION_MAJOR "${CMAKE_CXX_COMPILER_VERSION}")
string(REGEX REPLACE "([0-9]+)\\.([0-9]+)(\\.[0-9]+)?" "\\2"
- _boost_COMPILER_VERSION_MINOR ${CMAKE_CXX_COMPILER_VERSION})
+ _boost_COMPILER_VERSION_MINOR "${CMAKE_CXX_COMPILER_VERSION}")
set(_boost_COMPILER_VERSION "${_boost_COMPILER_VERSION_MAJOR}${_boost_COMPILER_VERSION_MINOR}")