+dnl http://autoconf-archive.cryp.to/ac_cxx_dynamic_cast.html
+AC_DEFUN([AC_CXX_DYNAMIC_CAST],
+[AC_CACHE_CHECK(whether the compiler supports dynamic_cast<>,
+ac_cv_cxx_dynamic_cast,
+[AC_LANG_SAVE
+ AC_LANG_CPLUSPLUS
+ AC_TRY_COMPILE([#include <typeinfo>
+class Base { public : Base () {} virtual void f () = 0;};
+class Derived : public Base { public : Derived () {} virtual void f () {} };],[
+Derived d; Base& b=d; return dynamic_cast<Derived*>(&b) ? 0 : 1;],
+ ac_cv_cxx_dynamic_cast=yes, ac_cv_cxx_dynamic_cast=no)
+ AC_LANG_RESTORE
+])
+if test "$ac_cv_cxx_dynamic_cast" = yes; then
+ AC_DEFINE(HAVE_DYNAMIC_CAST,,[define if the compiler supports dynamic_cast<>])
+fi
+])
+
+
+dnl ---------------------------------------------------------------------------
+dnl Compiler detection macros by David Elliott
+dnl ---------------------------------------------------------------------------
+
+
+dnl ===========================================================================
+dnl Macros to detect non-GNU compilers (MetroWerks, XLC)
+dnl ===========================================================================
+
+dnl Based on autoconf _AC_LANG_COMPILER_GNU
+AC_DEFUN([_AC_BAKEFILE_LANG_COMPILER_MWERKS],
+[AC_CACHE_CHECK([whether we are using the Metrowerks _AC_LANG compiler],
+ [bakefile_cv_[]_AC_LANG_ABBREV[]_compiler_mwerks],
+ [AC_TRY_COMPILE([],[#ifndef __MWERKS__
+ choke me
+#endif
+],
+ [bakefile_compiler_mwerks=yes],
+ [bakefile_compiler_mwerks=no])
+ bakefile_cv_[]_AC_LANG_ABBREV[]_compiler_mwerks=$bakefile_compiler_mwerks
+ ])
+])
+
+dnl Loosely based on autoconf AC_PROG_CC
+dnl TODO: Maybe this should wrap the call to AC_PROG_CC and be used instead.
+AC_DEFUN([AC_BAKEFILE_PROG_MWCC],
+[AC_LANG_PUSH(C)
+_AC_BAKEFILE_LANG_COMPILER_MWERKS
+MWCC=`test $bakefile_cv_c_compiler_mwerks = yes && echo yes`
+AC_LANG_POP(C)
+])
+
+dnl Loosely based on autoconf AC_PROG_CXX
+dnl TODO: Maybe this should wrap the call to AC_PROG_CXX and be used instead.
+AC_DEFUN([AC_BAKEFILE_PROG_MWCXX],
+[AC_LANG_PUSH(C++)
+_AC_BAKEFILE_LANG_COMPILER_MWERKS
+MWCXX=`test $bakefile_cv_cxx_compiler_mwerks = yes && echo yes`
+AC_LANG_POP(C++)
+])
+
+dnl Based on autoconf _AC_LANG_COMPILER_GNU
+AC_DEFUN([_AC_BAKEFILE_LANG_COMPILER_XLC],
+[AC_CACHE_CHECK([whether we are using the IBM xlC _AC_LANG compiler],
+ [wx_cv_[]_AC_LANG_ABBREV[]_compiler_xlc],
+ [AC_TRY_COMPILE([],[#ifndef __xlC__
+ choke me
+#endif
+],
+ [wx_compiler_xlc=yes],
+ [wx_compiler_xlc=no])
+ wx_cv_[]_AC_LANG_ABBREV[]_compiler_xlc=$wx_compiler_xlc
+ ])
+])
+
+dnl Loosely based on autoconf AC_PROG_CC
+AC_DEFUN([AC_BAKEFILE_PROG_XLCC],
+[AC_LANG_PUSH(C)
+_AC_BAKEFILE_LANG_COMPILER_XLC
+XLCC=`test $wx_cv_c_compiler_xlc = yes && echo yes`
+AC_LANG_POP(C)
+])
+
+dnl Loosely based on autoconf AC_PROG_CXX
+AC_DEFUN([AC_BAKEFILE_PROG_XLCXX],
+[AC_LANG_PUSH(C++)
+_AC_BAKEFILE_LANG_COMPILER_XLC
+XLCXX=`test $wx_cv_cxx_compiler_xlc = yes && echo yes`
+AC_LANG_POP(C++)
+])
+
+
+dnl ===========================================================================
+dnl macros to detect specialty compiler options
+dnl ===========================================================================
+
+dnl Figure out if we need to pass -ext o to compiler (MetroWerks)
+AC_DEFUN([AC_BAKEFILE_METROWERKS_EXTO],
+[AC_CACHE_CHECK([if the _AC_LANG compiler requires -ext o], wx_cv_[]_AC_LANG_ABBREV[]_exto,
+dnl First create an empty conf test
+[AC_LANG_CONFTEST([AC_LANG_PROGRAM()])
+dnl Now remove .o and .c.o or .cc.o
+rm -f conftest.$ac_objext conftest.$ac_ext.o
+dnl Now compile the test
+AS_IF([AC_TRY_EVAL(ac_compile)],
+dnl If the test succeeded look for conftest.c.o or conftest.cc.o
+[for ac_file in `(ls conftest.* 2>/dev/null)`; do
+ case $ac_file in
+ conftest.$ac_ext.o)
+ wx_cv_[]_AC_LANG_ABBREV[]_exto="-ext o"
+ ;;
+ *)
+ ;;
+ esac
+done],
+[AC_MSG_FAILURE([cannot figure out if compiler needs -ext o: cannot compile])
+]) dnl AS_IF
+
+rm -f conftest.$ac_ext.o conftest.$ac_objext conftest.$ac_ext
+]) dnl AC_CACHE_CHECK
+
+if test "x$wx_cv_[]_AC_LANG_ABBREV[]_exto" '!=' "x"; then
+ if test "[]_AC_LANG_ABBREV[]" = "c"; then
+ CFLAGS="$wx_cv_[]_AC_LANG_ABBREV[]_exto $CFLAGS"
+ fi
+ if test "[]_AC_LANG_ABBREV[]" = "cxx"; then
+ CXXFLAGS="$wx_cv_[]_AC_LANG_ABBREV[]_exto $CXXFLAGS"
+ fi
+fi
+]) dnl AC_DEFUN
+
+
+dnl ===========================================================================
+dnl Macros to do all of the compiler detections as one macro
+dnl ===========================================================================
+AC_DEFUN([AC_BAKEFILE_PROG_CC],
+[
+ AC_PROG_CC
+ AC_BAKEFILE_METROWERKS_EXTO
+ dnl By the time we find out that we need -ext o some tests have failed.
+ if test "x$wx_cv_c_exto" '!=' "x"; then
+ unset ac_cv_prog_cc_g
+ _AC_PROG_CC_G
+ fi
+ AC_BAKEFILE_PROG_MWCC
+ AC_BAKEFILE_PROG_XLCC
+])
+
+AC_DEFUN([AC_BAKEFILE_PROG_CXX],
+[
+ AC_PROG_CXX
+ AC_BAKEFILE_METROWERKS_EXTO
+ dnl By the time we find out that we need -ext o some tests have failed.
+ if test "x$wx_cv_cxx_exto" '!=' "x"; then
+ unset ac_cv_prog_cxx_g
+ _AC_PROG_CXX_G
+ fi
+ AC_BAKEFILE_PROG_MWCXX
+ AC_BAKEFILE_PROG_XLCXX
+])
+
+
projects / wxWidgets.git / blobdiff