Update CMake config

to version https://github.com/cppformat/cppformat/commit/7ee287d3d9e340737f3ad66292e7bc60a53b3053

CMakeLists.txt

 message(STATUS "CMake version: ${CMAKE_VERSION}")
 
-cmake_minimum_required(VERSION 2.6)
+cmake_minimum_required(VERSION 2.8.12)
 
 # Set the default CMAKE_BUILD_TYPE to Release.
 # This should be done before the project command since the latter can set
@@ -95,14 +95,19 @@ if (BIICODE)
 endif ()
 
 add_library(cppformat ${FMT_SOURCES})
-if (BUILD_SHARED_LIBS AND UNIX AND NOT APPLE)
-  # Fix rpmlint warning:
-  # unused-direct-shlib-dependency /usr/lib/libformat.so.1.1.0 /lib/libm.so.6.
-  target_link_libraries(cppformat -Wl,--as-needed)
+if (BUILD_SHARED_LIBS)
+  if (UNIX AND NOT APPLE)
+    # Fix rpmlint warning:
+    # unused-direct-shlib-dependency /usr/lib/libformat.so.1.1.0 /lib/libm.so.6.
+    target_link_libraries(cppformat -Wl,--as-needed)
+  endif ()
+  set(FMT_EXTRA_COMPILE_FLAGS -DFMT_EXPORT)
 endif ()
+
 if (FMT_PEDANTIC AND
     (CMAKE_COMPILER_IS_GNUCXX OR (CMAKE_CXX_COMPILER_ID MATCHES "Clang")))
-  set(FMT_EXTRA_COMPILE_FLAGS "-Wall -Wextra -Wshadow -pedantic")
+  set(FMT_EXTRA_COMPILE_FLAGS
+      "${FMT_EXTRA_COMPILE_FLAGS} -Wall -Wextra -Wshadow -pedantic")
 endif ()
 
 # If FMT_PEDANTIC is TRUE, then test compilation with both -std=c++11
@@ -117,7 +122,7 @@ endif ()
 set_target_properties(cppformat
   PROPERTIES COMPILE_FLAGS "${FMT_EXTRA_COMPILE_FLAGS}")
 
-set(CPPFORMAT_VERSION 2.0.0)
+set(CPPFORMAT_VERSION 2.1.0)
 if (NOT CPPFORMAT_VERSION MATCHES "^([0-9]+).([0-9]+).([0-9]+)$")
   message(FATAL_ERROR "Invalid version format ${CPPFORMAT_VERSION}.")
 endif ()
@@ -137,9 +142,10 @@ endif ()
 set_target_properties(cppformat PROPERTIES
   VERSION ${CPPFORMAT_VERSION} SOVERSION ${CPACK_PACKAGE_VERSION_MAJOR})
 
-if (EXISTS .gitignore)
+set(gitignore ${CMAKE_CURRENT_SOURCE_DIR}/.gitignore)
+if (EXISTS ${gitignore})
   # Get the list of ignored files from .gitignore.
-  file (STRINGS ".gitignore" lines)
+  file (STRINGS ${gitignore} lines)
   LIST(REMOVE_ITEM lines /doc/html)
   foreach (line ${lines})
     string(REPLACE "." "[.]" line "${line}")
@@ -152,14 +158,46 @@ if (EXISTS .gitignore)
   set(CPACK_SOURCE_GENERATOR ZIP)
   set(CPACK_SOURCE_IGNORE_FILES ${ignored_files})
   set(CPACK_SOURCE_PACKAGE_FILE_NAME cppformat-${CPPFORMAT_VERSION})
+  set(CPACK_PACKAGE_NAME cppformat)
   set(CPACK_RESOURCE_FILE_README ${FORMAT_SOURCE_DIR}/README.rst)
   include(CPack)
 endif ()
 
 # Install targets.
 if (FMT_INSTALL)
+  include(CMakePackageConfigHelpers)
+  set(config_install_dir lib/cmake/cppformat)
+  set(version_config ${CMAKE_CURRENT_BINARY_DIR}/cppformat-config-version.cmake)
+  set(project_config ${CMAKE_CURRENT_BINARY_DIR}/cppformat-config.cmake)
+  set(targets_export_name cppformat-targets)
+
   set(FMT_LIB_DIR lib CACHE STRING
     "Installation directory for libraries, relative to ${CMAKE_INSTALL_PREFIX}.")
-  install(TARGETS cppformat DESTINATION ${FMT_LIB_DIR})
+
+  # Add the include directories for both build and install tree.
+  target_include_directories(
+    cppformat PUBLIC
+    $<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}>
+    $<INSTALL_INTERFACE:include>)
+
+  # Generate the version, config and target files into the build directory.
+  write_basic_package_version_file(
+    ${version_config}
+    VERSION ${CPPFORMAT_VERSION}
+    COMPATIBILITY AnyNewerVersion)
+  configure_package_config_file(
+    support/cmake/cppformat-config.cmake.in
+    ${project_config}
+    INSTALL_DESTINATION ${config_install_dir})
+  export(TARGETS cppformat FILE ${targets_export_name}.cmake)
+
+  # Install version, config and target files.
+  install(
+    FILES ${project_config} ${version_config}
+    DESTINATION ${config_install_dir})
+  install(EXPORT ${targets_export_name} DESTINATION ${config_install_dir})
+
+  # Install the library and the include file.
+  install(TARGETS cppformat EXPORT ${targets_export_name} DESTINATION ${FMT_LIB_DIR})
   install(FILES format.h DESTINATION include/cppformat)
 endif ()

test/CMakeLists.txt

@@ -2,6 +2,14 @@ set(FMT_GMOCK_DIR ../gmock)
 
 include_directories(.. ${FMT_GMOCK_DIR})
 
+# Links target with cppformat and any libraries passed as extra arguments.
+function (target_link_cppformat target)
+  target_link_libraries(${target} cppformat ${ARGN})
+  if (BUILD_SHARED_LIBS)
+    set_target_properties(${target} PROPERTIES COMPILE_FLAGS -DFMT_SHARED)
+  endif ()
+endfunction ()
+
 # We compile Google Test ourselves instead of using pre-compiled libraries.
 # See the Google Test FAQ "Why is it not recommended to install a
 # pre-compiled copy of Google Test (for example, into /usr/local)?"
@@ -10,6 +18,7 @@ include_directories(.. ${FMT_GMOCK_DIR})
 add_library(gmock STATIC
   ${FMT_GMOCK_DIR}/gmock-gtest-all.cc ${FMT_GMOCK_DIR}/gmock/gmock.h
   ${FMT_GMOCK_DIR}/gtest/gtest.h ${FMT_GMOCK_DIR}/gtest/gtest-spi.h)
+target_include_directories(gmock INTERFACE ${FMT_GMOCK_DIR})
 find_package(Threads)
 if (Threads_FOUND)
   target_link_libraries(gmock ${CMAKE_THREAD_LIBS_INIT})
@@ -28,7 +37,7 @@ check_cxx_source_compiles("
 check_cxx_source_compiles("
   #include <initializer_list>
   int main() {}" FMT_INITIALIZER_LIST)
-  
+
 if (NOT FMT_VARIADIC_TEMPLATES OR NOT FMT_INITIALIZER_LIST)
   add_definitions(-DGTEST_LANG_CXX11=0)
 endif ()
@@ -45,7 +54,7 @@ endif ()
 
 set(TEST_MAIN_SRC test-main.cc gtest-extra.cc gtest-extra.h util.cc)
 add_library(test-main STATIC ${TEST_MAIN_SRC})
-target_link_libraries(test-main cppformat gmock)
+target_link_cppformat(test-main gmock)
 
 # Adds a test.
 # Usage: add_fmt_test(name [CUSTOM_LINK] srcs...)
@@ -54,7 +63,7 @@ function(add_fmt_test name)
   add_executable(${name} ${name}.cc ${add_fmt_test_UNPARSED_ARGUMENTS})
   target_link_libraries(${name} test-main)
   if (NOT add_fmt_test_CUSTOM_LINK)
-    target_link_libraries(${name} cppformat)
+    target_link_cppformat(${name})
   endif ()
   add_test(NAME ${name} COMMAND ${name})
 endfunction()