91 lines
3.9 KiB
CMake
91 lines
3.9 KiB
CMake
# Version checking for @PROJECT_NAME@
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set (PACKAGE_VERSION "@PROJECT_VERSION@")
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set (PACKAGE_VERSION_MAJOR "@PROJECT_VERSION_MAJOR@")
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set (PACKAGE_VERSION_MINOR "@PROJECT_VERSION_MINOR@")
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set (PACKAGE_VERSION_PATCH "@PROJECT_VERSION_PATCH@")
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# These variable definitions parallel those in @PROJECT_NAME@'s
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# cmake/CMakeLists.txt.
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if (MSVC)
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# For checking the compatibility of MSVC_TOOLSET_VERSION; see
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# https://docs.microsoft.com/en-us/cpp/porting/overview-of-potential-upgrade-issues-visual-cpp
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# Assume major version number is obtained by dropping the last decimal
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# digit.
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math (EXPR MSVC_TOOLSET_MAJOR "${MSVC_TOOLSET_VERSION}/10")
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endif ()
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if (CMAKE_CROSSCOMPILING)
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# Ensure that all "true" (resp. "false") settings are represented by
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# the same string.
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set (CMAKE_CROSSCOMPILING_STR "ON")
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else ()
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set (CMAKE_CROSSCOMPILING_STR "OFF")
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endif ()
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if (NOT PACKAGE_FIND_NAME STREQUAL "@PROJECT_NAME@")
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# Check package name (in particular, because of the way cmake finds
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# package config files, the capitalization could easily be "wrong").
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# This is necessary to ensure that the automatically generated
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# variables, e.g., <package>_FOUND, are consistently spelled.
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set (REASON "package = @PROJECT_NAME@, NOT ${PACKAGE_FIND_NAME}")
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set (PACKAGE_VERSION_UNSUITABLE TRUE)
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elseif (NOT (APPLE OR (NOT DEFINED CMAKE_SIZEOF_VOID_P) OR
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CMAKE_SIZEOF_VOID_P EQUAL @CMAKE_SIZEOF_VOID_P@))
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# Reject if there's a 32-bit/64-bit mismatch (not necessary with Apple
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# since a multi-architecture library is built for that platform).
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set (REASON "sizeof(*void) = @CMAKE_SIZEOF_VOID_P@")
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set (PACKAGE_VERSION_UNSUITABLE TRUE)
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elseif (MSVC AND NOT (
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# toolset version must be at least as great as @PROJECT_NAME@'s.
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MSVC_TOOLSET_VERSION GREATER_EQUAL @MSVC_TOOLSET_VERSION@
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# and major versions must match
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AND MSVC_TOOLSET_MAJOR EQUAL @MSVC_TOOLSET_MAJOR@ ))
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# Reject if there's a mismatch in MSVC compiler versions.
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set (REASON "MSVC_TOOLSET_VERSION = @MSVC_TOOLSET_VERSION@")
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set (PACKAGE_VERSION_UNSUITABLE TRUE)
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elseif (GEOGRAPHICLIB_PRECISION MATCHES "^[1-5]\$" AND NOT (
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GEOGRAPHICLIB_PRECISION EQUAL @GEOGRAPHICLIB_PRECISION@ ))
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# Reject if the user asks for an incompatible precsision.
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set (REASON "GEOGRAPHICLIB_PRECISION = @GEOGRAPHICLIB_PRECISION@")
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set (PACKAGE_VERSION_UNSUITABLE TRUE)
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elseif (NOT CMAKE_CROSSCOMPILING_STR STREQUAL "@CMAKE_CROSSCOMPILING_STR@")
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# Reject if there's a mismatch in ${CMAKE_CROSSCOMPILING}.
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set (REASON "cross-compiling = @CMAKE_CROSSCOMPILING@")
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set (PACKAGE_VERSION_UNSUITABLE TRUE)
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elseif (CMAKE_CROSSCOMPILING AND
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NOT (CMAKE_SYSTEM_NAME STREQUAL "@CMAKE_SYSTEM_NAME@" AND
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CMAKE_SYSTEM_PROCESSOR STREQUAL "@CMAKE_SYSTEM_PROCESSOR@"))
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# Reject if cross-compiling and there's a mismatch in the target system.
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set (REASON "target = @CMAKE_SYSTEM_NAME@-@CMAKE_SYSTEM_PROCESSOR@")
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set (PACKAGE_VERSION_UNSUITABLE TRUE)
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elseif (PACKAGE_FIND_VERSION)
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if (PACKAGE_FIND_VERSION VERSION_EQUAL PACKAGE_VERSION)
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set (PACKAGE_VERSION_EXACT TRUE)
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elseif (PACKAGE_FIND_VERSION VERSION_LESS PACKAGE_VERSION
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AND PACKAGE_FIND_VERSION_MAJOR EQUAL PACKAGE_VERSION_MAJOR)
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set (PACKAGE_VERSION_COMPATIBLE TRUE)
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endif ()
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endif ()
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set (@PROJECT_NAME@_SHARED_FOUND @GEOGRAPHICLIB_SHARED_LIB@)
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set (@PROJECT_NAME@_STATIC_FOUND @GEOGRAPHICLIB_STATIC_LIB@)
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# Check for the components requested. The convention is that
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# @PROJECT_NAME@_${comp}_FOUND should be true for all the required
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# components.
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if (@PROJECT_NAME@_FIND_COMPONENTS)
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foreach (comp ${@PROJECT_NAME@_FIND_COMPONENTS})
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if (@PROJECT_NAME@_FIND_REQUIRED_${comp} AND
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NOT @PROJECT_NAME@_${comp}_FOUND)
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set (REASON "without ${comp}")
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set (PACKAGE_VERSION_UNSUITABLE TRUE)
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endif ()
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endforeach ()
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endif ()
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# If unsuitable, append the reason to the package version so that it's
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# visible to the user.
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if (PACKAGE_VERSION_UNSUITABLE)
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set (PACKAGE_VERSION "${PACKAGE_VERSION} (${REASON})")
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endif ()
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