Adding option for static/shared CRT in MSVC & Windows fixes.
- MSVC users can now choose whether to use the static or shared
C-Run Time (CRT) libraries explicitly.
- FindPackage() scripts now check that the lowercase libraries match
the expected library names, as Windows uses CamelCase for some
library names (other OSs don't).
Change-Id: Icbba5e9bf80181a5437e5009bdda1c12934bc6f3
diff --git a/CMakeLists.txt b/CMakeLists.txt
index 6f267b2..ad7e220 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -116,6 +116,10 @@
OPTION(BUILD_DOCUMENTATION "Build User's Guide (html)" OFF)
OPTION(BUILD_EXAMPLES "Build examples" ON)
OPTION(BUILD_SHARED_LIBS "Build Ceres as a shared library." OFF)
+IF (MSVC)
+ OPTION(MSVC_USE_STATIC_CRT
+ "MS Visual Studio: Use static C-Run Time Library in place of shared." OFF)
+ENDIF (MSVC)
# Prior to October 2013, Ceres used some non-CMake standardised variables to
# hold user-specified (as opposed to FindPackage found) include directory and
@@ -538,6 +542,29 @@
# the warnings.
SET(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} /ignore:4049")
+ # Update the C/CXX flags for MSVC to use either the static or shared
+ # C-Run Time (CRT) library based on the user option: MSVC_USE_STATIC_CRT.
+ LIST(APPEND C_CXX_FLAGS
+ CMAKE_CXX_FLAGS
+ CMAKE_CXX_FLAGS_DEBUG
+ CMAKE_CXX_FLAGS_RELEASE
+ CMAKE_CXX_FLAGS_MINSIZEREL
+ CMAKE_CXX_FLAGS_RELWITHDEBINFO)
+
+ FOREACH(FLAG_VAR ${C_CXX_FLAGS})
+ IF (MSVC_USE_STATIC_CRT)
+ # Use static CRT.
+ IF (${FLAG_VAR} MATCHES "/MD")
+ STRING(REGEX REPLACE "/MD" "/MT" ${FLAG_VAR} "${${FLAG_VAR}}")
+ ENDIF (${FLAG_VAR} MATCHES "/MD")
+ ELSE (MSVC_USE_STATIC_CRT)
+ # Use shared, not static, CRT.
+ IF (${FLAG_VAR} MATCHES "/MT")
+ STRING(REGEX REPLACE "/MT" "/MD" ${FLAG_VAR} "${${FLAG_VAR}}")
+ ENDIF (${FLAG_VAR} MATCHES "/MT")
+ ENDIF (MSVC_USE_STATIC_CRT)
+ ENDFOREACH()
+
# Tuple sizes of 10 are used by Gtest.
ADD_DEFINITIONS("-D_VARIADIC_MAX=10")
ENDIF (MSVC)
