diff options
Diffstat (limited to 'cmake/FindIconv.cmake')
-rw-r--r-- | cmake/FindIconv.cmake | 115 |
1 files changed, 115 insertions, 0 deletions
diff --git a/cmake/FindIconv.cmake b/cmake/FindIconv.cmake new file mode 100644 index 0000000..5ef8686 --- /dev/null +++ b/cmake/FindIconv.cmake @@ -0,0 +1,115 @@ +# vim:ts=4:sw=4:expandtab:autoindent: +# +# The MIT License +# +# Copyright (c) 2008, 2009 Flusspferd contributors (see "CONTRIBUTORS" or +# http://flusspferd.org/contributors.txt) +# +# Permission is hereby granted, free of charge, to any person obtaining a copy +# of this software and associated documentation files (the "Software"), to deal +# in the Software without restriction, including without limitation the rights +# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell +# copies of the Software, and to permit persons to whom the Software is +# furnished to do so, subject to the following conditions: +# +# The above copyright notice and this permission notice shall be included in +# all copies or substantial portions of the Software. +# +# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER +# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, +# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN +# THE SOFTWARE. +# + +Include(CheckFunctionExists) +include(CheckCXXSourceCompiles) + +if(ICONV_INCLUDE_DIR) + set(ICONV_FIND_QUIETLY TRUE) +endif() + +find_path(ICONV_INCLUDE_DIR iconv.h + HINTS + ${CMAKE_PREFIX_PATH} + ${ICONV_DIR} + $ENV{ICONV_DIR} + PATH_SUFFIXES include +) + +if(NOT ICONV_INCLUDE_DIR STREQUAL "ICONV_INCLUDE_DIR-NOTFOUND") + set(CMAKE_REQUIRED_INCLUDES ${ICONV_INCLUDE_DIR}) + check_function_exists(iconv_open ICONV_IN_GLIBC) +endif() + +if(NOT ICONV_IN_GLIBC) + find_library(ICONV_LIBRARY + NAMES iconv + HINTS + ${CMAKE_PREFIX_PATH} + ${ICONV_DIR} + $ENV{ICONV_DIR} + PATH_SUFFIXES lib64 lib + ) + set(ICONV_TEST ${ICONV_LIBRARY}) +else() + set(ICONV_TEST "In glibc") +endif() + +set(CMAKE_REQUIRED_INCLUDES ${ICONV_INCLUDE_DIR}) +set(CMAKE_REQUIRED_LIBRARIES ${ICONV_LIBRARY}) +check_cxx_source_compiles( + "#include <iconv.h> + int main() { + iconv(iconv_t(-1), 0, 0, 0, 0); + }" + ICONV_COMPILES) + +include(FindPackageHandleStandardArgs) +find_package_handle_standard_args(ICONV DEFAULT_MSG ICONV_TEST ICONV_INCLUDE_DIR ICONV_COMPILES) + +if(ICONV_FOUND) + set(ICONV_LIBRARIES ${ICONV_LIBRARY}) +else(ICONV_FOUND) + set(ICONV_LIBRARIES) +endif(ICONV_FOUND) + +if(ICONV_FOUND) + set(CMAKE_REQUIRED_INCLUDES ${ICONV_INCLUDE_DIR}) + set(CMAKE_REQUIRED_LIBRARIES ${ICONV_LIBRARIES}) + + if (NOT DEFINED ICONV_ACCEPTS_NONCONST_INPUT) + # Display a useful message first time we come through here + message(STATUS "One (and only one) of the ICONV_ACCEPTS_... tests must pass") + endif() + check_cxx_source_compiles( + "#include <iconv.h> + int main() { + char *p = 0; + iconv(iconv_t(-1), &p, 0, 0, 0); + }" + ICONV_ACCEPTS_NONCONST_INPUT) + + check_cxx_source_compiles( + "#include <iconv.h> + int main() { + char const *p = 0; + iconv(iconv_t(-1), &p, 0, 0, 0); + }" + ICONV_ACCEPTS_CONST_INPUT) + + if (ICONV_LIBRARY) + list(REMOVE_ITEM CMAKE_REQUIRED_LIBRARIES ${ICONV_LIBRARY}) + list(REMOVE_DUPLICATES CMAKE_REQUIRED_LIBRARIES) + endif() +endif() + +if(NOT ICONV_ACCEPTS_CONST_INPUT AND NOT ICONV_ACCEPTS_NONCONST_INPUT) + MESSAGE(FATAL_ERROR "Unable to determine iconv() signature") +elseif(ICONV_ACCEPTS_CONST_INPUT AND ICONV_ACCEPTS_NONCONST_INPUT) + MESSAGE(FATAL_ERROR "Unable to determine iconv() signature - both test cases passed!") +endif() + +mark_as_advanced(ICONV_LIBRARY ICONV_INCLUDE_DIR) |