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Make autoconf detect and enable c++11 support in compilers

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Bart van Strien
2013-09-29 12:47:34 +02:00
parent 5f609c2e2b
commit 375cbd4003
1 changed files with 16 additions and 0 deletions
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platform/unix/configure.ac
+16
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@@ -13,9 +13,25 @@ AC_PROG_CXX
AC_PROG_SED
AC_PROG_MKDIR_P
AC_C_BIGENDIAN
AC_LANG([C++])
includes=
AC_DEFUN([ACLOVE_CXX_FLAG_TEST], # WARNING: NOT REENTRANT
[aclove_cxx_flag_test_save_cflags="$CXXFLAGS"
CXXFLAGS="$1"
AC_MSG_CHECKING([whether $CXX supports flag $1])
AC_COMPILE_IFELSE([AC_LANG_PROGRAM([])],
[AC_MSG_RESULT([yes])]; $2,
[AC_MSG_RESULT([no]); $3])
CXXFLAGS="$aclove_cxx_flag_test_save_cflags"])
# C++11 support
cxx11name="no"
ACLOVE_CXX_FLAG_TEST([-std=c++0x], cxx11name="c++0x", [])
ACLOVE_CXX_FLAG_TEST([-std=c++11], cxx11name="c++11", [])
AS_VAR_IF([cxx11name], [no], AC_MSG_ERROR([Can't LÖVE without C++11]), CXXFLAGS="$CXXFLAGS -std=$cxx11name")
# Libraries
AC_SEARCH_LIBS([sqrt], [m], [], AC_MSG_ERROR([Can't LÖVE without C math library]))
AC_SEARCH_LIBS([SDL_Init], [SDL2], [], AC_MSG_ERROR([Can't LÖVE without SDL 2]))