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Improve error messages when libraries aren't found

This commit is contained in:
Sebastian Messmer 2016-02-14 15:55:54 +01:00
parent 416baf1abe
commit 1e975f64f7
3 changed files with 32 additions and 5 deletions
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2
src/cpp-utils/CMakeLists.txt
View File

@ -43,7 +43,7 @@ endif(${CMAKE_SYSTEM_NAME} MATCHES "Linux")
target_link_libraries(${PROJECT_NAME} PRIVATE pthread curl)
# TODO From Crypto++ 5.7 on, it should support cmake with find_package() instead of find_library().
find_library(CryptoPP cryptopp $ENV{CRYPTOPP_LIB_PATH})
find_library_with_path(CryptoPP cryptopp CRYPTOPP_LIB_PATH)
target_link_libraries(${PROJECT_NAME} PUBLIC ${CryptoPP} scrypt spdlog)
target_add_boost(${PROJECT_NAME} filesystem system thread)

5
src/fspp/CMakeLists.txt
View File

@ -22,9 +22,10 @@ target_activate_cpp14(${PROJECT_NAME})
if(${CMAKE_SYSTEM_NAME} MATCHES "Darwin")
set(CMAKE_FIND_FRAMEWORK LAST)
find_library(FUSE osxfuse $ENV{FUSE_LIB_PATH})
set(FUSE_LIB_NAME "osxfuse")
else(${CMAKE_SYSTEM_NAME} MATCHES "Darwin")
find_library(FUSE fuse $ENV{FUSE_LIB_PATH})
set(FUSE_LIB_NAME "fuse")
endif(${CMAKE_SYSTEM_NAME} MATCHES "Darwin")
find_library_with_path(FUSE ${FUSE_LIB_NAME} FUSE_LIB_PATH)
target_link_libraries(${PROJECT_NAME} PUBLIC ${FUSE})

30
utils.cmake
View File

@ -63,7 +63,6 @@ function(require_gcc_version VERSION)
endif (CMAKE_COMPILER_IS_GNUCXX)
endfunction(require_gcc_version)
##################################################
# Specify that a specific minimal version of clang is required
#
@ -76,4 +75,31 @@ function(require_clang_version VERSION)
message(FATAL_ERROR "Needs at least clang version ${VERSION}, found clang ${CMAKE_CXX_COMPILER_VERSION}")
endif (CMAKE_CXX_COMPILER_VERSION VERSION_LESS ${VERSION})
endif(CMAKE_CXX_COMPILER_ID MATCHES "Clang")
endfunction(require_clang_version)
endfunction(require_clang_version)
##################################################
# Find the location of a library and return its full path in OUTPUT_VARIABLE.
# If PATH_VARIABLE points to a defined variable, then the library will only be searched in this path.
# If PATH_VARIABLE points to a undefined variable, default system locations will be searched.
#
# Uses (the following will search for fuse in system locations by default, and if the user passes -DFUSE_LIB_PATH to cmake, it will only search in this path.
# find_library_with_path(MYLIBRARY fuse FUSE_LIB_PATH)
# target_link_library(target ${MYLIBRARY})
##################################################
function(find_library_with_path OUTPUT_VARIABLE LIBRARY_NAME PATH_VARIABLE)
if(${PATH_VARIABLE})
find_library(${OUTPUT_VARIABLE} ${LIBRARY_NAME} PATHS ${${PATH_VARIABLE}} NO_DEFAULT_PATH)
if (${OUTPUT_VARIABLE} MATCHES NOTFOUND)
message(FATAL_ERROR "Didn't find ${LIBRARY_NAME} in path specified by the ${PATH_VARIABLE} parameter (${${PATH_VARIABLE}}). Pass in the correct path or remove the parameter to try common system locations.")
else(${OUTPUT_VARIABLE} MATCHES NOTFOUND)
message(STATUS "Found ${LIBRARY_NAME} in user-defined path ${${PATH_VARIABLE}}")
endif(${OUTPUT_VARIABLE} MATCHES NOTFOUND)
else(${PATH_VARIABLE})
find_library(${OUTPUT_VARIABLE} ${LIBRARY_NAME})
if (${OUTPUT_VARIABLE} MATCHES NOTFOUND)
message(FATAL_ERROR "Didn't find ${LIBRARY_NAME} library. If ${LIBRARY_NAME} is installed, try passing in the library location with -D${PATH_VARIABLE}=/path/to/${LIBRARY_NAME}/lib.")
else(${OUTPUT_VARIABLE} MATCHES NOTFOUND)
message(STATUS "Found ${LIBRARY_NAME} in system location")
endif(${OUTPUT_VARIABLE} MATCHES NOTFOUND)
endif(${PATH_VARIABLE})
endfunction(find_library_with_path)