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be41e2d16f
The GNU libstdc++ that ships witch gcc 5 can be used with the same ABI as older versions, or with a new ABI which is conformant to the C++11 standard. LyX did not build if the latter was used: https://kojipkgs.fedoraproject.org//work/tasks/1267/9651267/build.log This is now fixed by detecting the ABI version and disabling the wrong forward declarations. At the same time, STD_STRING_USES_COW is switched off for the C++11 ABI version, because the std::basic_string implementation is now C++11 conformant. Since the GNU libstdc++ can also used by other compilers such as clang, we must not test for the compiler version.
161 lines
4.5 KiB
CMake
161 lines
4.5 KiB
CMake
# This file is part of LyX, the document processor.
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# Licence details can be found in the file COPYING.
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#
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# Copyright (c) 2006, Peter Kümmel, <syntheticpp@gmx.net>
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#
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include(CheckIncludeFile)
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include(CheckIncludeFileCXX)
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include(CheckIncludeFiles)
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include(CheckSymbolExists)
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include(CheckFunctionExists)
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include(CheckLibraryExists)
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include(CheckTypeSize)
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include(CheckCXXSourceCompiles)
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include(MacroBoolTo01)
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include(TestBigEndian)
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test_big_endian(WORDS_BIGENDIAN)
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#check_include_file_cxx(istream HAVE_ISTREAM)
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#check_include_file_cxx(ostream HAVE_OSTREAM)
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#check_include_file_cxx(sstream HAVE_SSTREAM)
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#check_include_file_cxx(ios HAVE_IOS)
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#check_include_file_cxx(locale HAVE_LOCALE)
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# defines will be written to configIncludes.h
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set(Include_Defines)
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foreach(_h_file aspell.h aspell/aspell.h limits.h locale.h
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stdlib.h sys/stat.h sys/time.h sys/types.h sys/utime.h
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sys/socket.h unistd.h inttypes.h utime.h string.h argz.h)
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string(REGEX REPLACE "[/\\.]" "_" _hf ${_h_file})
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string(TOUPPER ${_hf} _HF)
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check_include_files(${_h_file} HAVE_${_HF})
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set(Include_Defines "${Include_Defines}#cmakedefine HAVE_${_HF} 1\n")
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endforeach()
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configure_file(${LYX_CMAKE_DIR}/configIncludes.cmake ${TOP_BINARY_DIR}/configIncludes.h.cmake)
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configure_file(${TOP_BINARY_DIR}/configIncludes.h.cmake ${TOP_BINARY_DIR}/configIncludes.h)
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# defines will be written to configFunctions.h
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set(Function_Defines)
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foreach(_f alloca __argz_count __argz_next __argz_stringify
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chmod close _close dcgettext fcntl fork __fsetlocking
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getcwd getegid getgid getpid _getpid gettext getuid lstat lockf mempcpy mkdir _mkdir
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mkfifo open _open pclose _pclose popen _popen putenv readlink
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setenv setlocale strcasecmp stpcpy strdup strerror strtoul tsearch unsetenv wcslen)
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string(TOUPPER ${_f} _UF)
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check_function_exists(${_f} HAVE_${_UF})
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set(Function_Defines "${Function_Defines}#cmakedefine HAVE_${_UF} 1\n")
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endforeach()
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configure_file(${LYX_CMAKE_DIR}/configFunctions.cmake ${TOP_BINARY_DIR}/configFunctions.h.cmake)
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configure_file(${TOP_BINARY_DIR}/configFunctions.h.cmake ${TOP_BINARY_DIR}/configFunctions.h)
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check_symbol_exists(alloca "malloc.h" HAVE_SYMBOL_ALLOCA)
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check_symbol_exists(asprintf "stdio.h" HAVE_ASPRINTF)
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check_symbol_exists(wprintf "stdio.h" HAVE_WPRINTF)
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check_symbol_exists(snprintf "stdio.h" HAVE_SNPRINTF)
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check_symbol_exists(printf "stdio.h" HAVE_POSIX_PRINTF)
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check_symbol_exists(pid_t "sys/types.h" HAVE_PID_T)
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check_symbol_exists(intmax_t "inttypes.h" HAVE_INTTYPES_H_WITH_UINTMAX)
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check_symbol_exists(uintmax_t "stdint.h" HAVE_STDINT_H_WITH_UINTMAX)
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check_symbol_exists(LC_MESSAGES "locale.h" HAVE_LC_MESSAGES)
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check_type_size(intmax_t HAVE_INTMAX_T)
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macro_bool_to_01(HAVE_UINTMAX_T HAVE_STDINT_H_WITH_UINTMAX)
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check_type_size("long double" HAVE_LONG_DOUBLE)
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check_type_size("long long" HAVE_LONG_LONG)
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check_type_size(wchar_t HAVE_WCHAR_T)
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check_type_size(wint_t HAVE_WINT_T)
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#check_cxx_source_compiles(
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# "
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# #include <algorithm>
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# using std::count;
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# int countChar(char * b, char * e, char const c)
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# {
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# return count(b, e, c);
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# }
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# int main(){return 0;}
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# "
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#HAVE_STD_COUNT)
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#check_cxx_source_compiles(
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# "
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# #include <cctype>
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# using std::tolower;
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# int main(){return 0;}
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# "
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#CXX_GLOBAL_CSTD)
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check_cxx_source_compiles(
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"
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#include <iconv.h>
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// this declaration will fail when there already exists a non const char** version which returns size_t
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double iconv(iconv_t cd, char **inbuf, size_t *inbytesleft, char **outbuf, size_t *outbytesleft);
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int main() { return 0; }
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"
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HAVE_ICONV_CONST)
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check_cxx_source_compiles(
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"
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int i[ ( sizeof(wchar_t)==2 ? 1 : -1 ) ];
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int main(){return 0;}
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"
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SIZEOF_WCHAR_T_IS_2)
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check_cxx_source_compiles(
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"
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int i[ ( sizeof(wchar_t)==4 ? 1 : -1 ) ];
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int main(){return 0;}
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"
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SIZEOF_WCHAR_T_IS_4)
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# Check whether STL is libstdc++
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check_cxx_source_compiles(
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"
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#include <vector>
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int main() {
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#if ! defined(__GLIBCXX__) && ! defined(__GLIBCPP__)
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this is not libstdc++
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#endif
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return(0);
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}
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"
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lyx_cv_lib_stdcxx)
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# Check whether STL is libstdc++ with C++11 ABI
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check_cxx_source_compiles(
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"
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#include <vector>
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int main() {
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#if ! defined(_GLIBCXX_USE_CXX11_ABI) || ! _GLIBCXX_USE_CXX11_ABI
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this is not libstdc++ using the C++11 ABI
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#endif
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return(0);
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}
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"
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USE_GLIBCXX_CXX11_ABI)
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check_cxx_source_compiles(
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"
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#ifndef __clang__
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this is not clang
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#endif
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int main() {
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return(0);
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}
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"
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lyx_cv_prog_clang)
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set(USE_LLVM_LIBCPP)
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set(USE_GLIBCXX_CXX11_ABI)
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if(NOT lyx_cv_lib_stdcxx)
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if(lyx_cv_prog_clang)
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# use libc++ provided by llvm instead of GNU libstdc++
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set(USE_LLVM_LIBCPP 1)
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endif()
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endif()
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