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-rw-r--r--Modules/FindBoost.cmake8
1 files changed, 5 insertions, 3 deletions
diff --git a/Modules/FindBoost.cmake b/Modules/FindBoost.cmake
index ca2a9c5..4a55588 100644
--- a/Modules/FindBoost.cmake
+++ b/Modules/FindBoost.cmake
@@ -13,6 +13,9 @@
# [version] [EXACT] # Minimum or EXACT version e.g. 1.36.0
# [REQUIRED] # Fail with error if Boost is not found
# [COMPONENTS <libs>...] # Boost libraries by their canonical name
+# # e.g. "date_time" for "libboost_date_time"
+# [OPTIONAL_COMPONENTS <libs>...]
+# # Optional Boost libraries by their canonical name)
# ) # e.g. "date_time" for "libboost_date_time"
#
# This module finds headers and requested component libraries OR a CMake
@@ -1777,10 +1780,9 @@ if(Boost_FOUND)
set(_boost_CHECKED_COMPONENT FALSE)
set(_Boost_MISSING_COMPONENTS "")
foreach(COMPONENT ${Boost_FIND_COMPONENTS})
- string(TOUPPER ${COMPONENT} COMPONENT)
+ string(TOUPPER ${COMPONENT} UPPERCOMPONENT)
set(_boost_CHECKED_COMPONENT TRUE)
- if(NOT Boost_${COMPONENT}_FOUND)
- string(TOLOWER ${COMPONENT} COMPONENT)
+ if(NOT Boost_${UPPERCOMPONENT}_FOUND AND Boost_FIND_REQUIRED_${COMPONENT})
list(APPEND _Boost_MISSING_COMPONENTS ${COMPONENT})
endif()
endforeach()