Convert a few more variables to int

[lyx.git] / CMakeLists.txt

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 5409746276c38fa259d8480ca71a5958dfe7059e..531532627d1d20d1fdaea79c0e19b98946e6ff27 100644 (file)
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -68,8 +68,15 @@ if(LYX_XMINGW)
 endif()
 
 if(NOT help AND NOT HELP)
-       # 'project' triggers the searching for a compiler
-       project(${LYX_PROJECT})
+  # 'project' triggers the searching for a compiler
+  project(${LYX_PROJECT})
+  if (CMAKE_COMPILER_IS_GNUCXX)
+    if (CMAKE_CXX_COMPILER_VERSION VERSION_LESS "4.0")
+      message(STATUS "Gnu CXX compiler version = ${CMAKE_CXX_COMPILER_VERSION}")
+      message(STATUS "is too old, should be >= 4.0")
+      message(FATAL_ERROR "Exiting")
+    endif()
+  endif()
 endif()
 
 if(UNIX)
@@ -246,12 +253,11 @@ set(LYX_GCC11_MODE)
 if(UNIX OR MINGW)
        execute_process(COMMAND ${CMAKE_CXX_COMPILER} -dumpversion OUTPUT_VARIABLE GCC_VERSION)
        message(STATUS "Using GCC version ${GCC_VERSION}")
-# disabled because of missing match_partial
-#      if(GCC_VERSION VERSION_LESS 4.9)
+       if(GCC_VERSION VERSION_LESS 4.9)
                # <regex> in gcc is unusable in versions less than 4.9.0
                # see https://gcc.gnu.org/bugzilla/show_bug.cgi?id=53631
                set(LYX_USE_STD_REGEX 0)
-#      endif()
+       endif()
        if (LYX_ENABLE_CXX11)
                find_package(CXX11Compiler)
                if(NOT CXX11COMPILER_FOUND)
@@ -260,7 +266,6 @@ if(UNIX OR MINGW)
                set(LYX_GCC11_MODE "${CXX11_FLAG}")
        endif()
 else()
-# disabled because of missing match_partial
        set(LYX_USE_STD_REGEX 0)
 #      if(MSVC10)
 #              set(LYX_USE_STD_REGEX 1) #TODO should we use it in ECMAScript mode?
@@ -610,8 +615,24 @@ foreach(_spell "ASPELL" "Enchant" "Hunspell")
   endif()
 endforeach()
 
+find_package(PythonInterp 2.7 QUIET)
+if(PYTHONINTERP_FOUND)
+  if(PYTHON_VERSION_STRING VERSION_GREATER 2.8)
+    unset(PYTHONINTERP_FOUND)
+  endif()
+endif()
+
+if (NOT PYTHONINTERP_FOUND)
+  unset(PYTHON_EXECUTABLE CACHE)
+  unset(PYTHON_VERSION_MAJOR)
+  unset(PYTHON_VERSION_MINOR)
+  unset(PYTHON_VERSION_STRING)
+  find_package(PythonInterp 3.3 REQUIRED)
+endif()
+
+set(LYX_PYTHON_EXECUTABLE ${PYTHON_EXECUTABLE} CACHE FILEPATH "Python to be used by LyX")
+
 if(LYX_NLS)
-       FIND_PROGRAM(LYX_PYTHON_EXECUTABLE python2 python HINTS ${GNUWIN32_DIR}/python)
        find_package(LyXGettext)
        if(LYX_PYTHON_EXECUTABLE AND GETTEXT_FOUND)
                add_subdirectory(po "${TOP_BINARY_DIR}/po")
@@ -632,7 +653,11 @@ find_package(ZLIB REQUIRED)
 
 if(LYX_EXTERNAL_BOOST)
        message(STATUS "Searching for boost")
-       find_package(Boost COMPONENTS signals regex) #TODO could REQUIRED be used
+       if(LYX_USE_STD_REGEX)
+               find_package(Boost COMPONENTS signals)
+       else()
+               find_package(Boost COMPONENTS signals regex)
+       endif()
        if(Boost_FOUND)
                message(STATUS "Boost found")
                message(STATUS "Boost-libs = ${Boost_LIBRARIES}")