initial commit

acinclude.m4

@@ -0,0 +1,94 @@
+AC_DEFUN([AX_GCC_OPTION], [
+AC_REQUIRE([AC_PROG_CC])
+
+AC_MSG_CHECKING([if gcc accepts $1 option])
+
+AS_IF([ test "x$GCC" = "xyes" ],[
+AS_IF([ test -z "$3" ],[
+ax_gcc_option_test="int main()
+{
+return 0;
+}"
+],[
+ax_gcc_option_test="$3"
+])
+
+# Dump the test program to file
+cat <<EOF > conftest.c
+$ax_gcc_option_test
+EOF
+
+# Dump back the file to the log, useful for debugging purposes
+AC_TRY_COMMAND(cat conftest.c 1>&AS_MESSAGE_LOG_FD)
+
+AS_IF([ AC_TRY_COMMAND($CC $2 $1 -c conftest.c 1>&AS_MESSAGE_LOG_FD) ],[
+AC_MSG_RESULT([yes])
+$4
+],[
+AC_MSG_RESULT([no])
+$5
+])
+],[
+AC_MSG_RESULT([no gcc available])
+])
+])
+
+AC_DEFUN([AX_GCC_VERSION], [
+GCC_VERSION=""
+AX_GCC_OPTION([-dumpversion],[],[],[
+ax_gcc_version_option=yes
+],[
+ax_gcc_version_option=no
+])
+AS_IF([test "x$GCC" = "xyes"],[
+AS_IF([test "x$ax_gcc_version_option" != "xno"],[
+AC_CACHE_CHECK([gcc version],[ax_cv_gcc_version],[
+ax_cv_gcc_version="`$CC -dumpversion`"
+AS_IF([test "x$ax_cv_gcc_version" = "x"],[
+ax_cv_gcc_version=""
+])
+])
+GCC_VERSION=$ax_cv_gcc_version
+])
+])
+AC_SUBST([GCC_VERSION])
+])
+
+AC_DEFUN([AX_GXX_VERSION], [
+GXX_VERSION=""
+AX_GCC_OPTION([-dumpversion],[],[],[
+ax_gcc_version_option=yes
+],[
+ax_gcc_version_option=no
+])
+AS_IF([test "x$GXX" = "xyes"],[
+AS_IF([test "x$ax_gxx_version_option" != "no"],[
+AC_CACHE_CHECK([gxx version],[ax_cv_gxx_version],[
+ax_cv_gxx_version="`$CXX -dumpversion`"
+AS_IF([test "x$ax_cv_gxx_version" = "x"],[
+ax_cv_gxx_version=""
+])
+])
+GXX_VERSION=$ax_cv_gxx_version
+])
+])
+AC_SUBST([GXX_VERSION])
+])
+
+AC_DEFUN([AX_COMPILER_VENDOR],
+[
+AC_CACHE_CHECK([for _AC_LANG compiler vendor], ax_cv_[]_AC_LANG_ABBREV[]_compiler_vendor,
+[ax_cv_[]_AC_LANG_ABBREV[]_compiler_vendor=unknown
+# note: don't check for gcc first since some other compilers define __GNUC__
+for ventest in intel:__ICC,__ECC,__INTEL_COMPILER ibm:__xlc__,__xlC__,__IBMC__,__IBMCPP__ pathscale:__PATHCC__,__PATHSCALE__ gnu:__GNUC__ sun:__SUNPRO_C,__SUNPRO_CC hp:__HP_cc,__HP_aCC dec:__DECC,__DECCXX,__DECC_VER,__DECCXX_VER borland:__BORLANDC__,__TURBOC__ comeau:__COMO__ cray:_CRAYC kai:__KCC lcc:__LCC__ metrowerks:__MWERKS__ sgi:__sgi,sgi microsoft:_MSC_VER watcom:__WATCOMC__ portland:__PGI; do
+vencpp="defined("`echo $ventest | cut -d: -f2 | sed 's/,/) || defined(/g'`")"
+AC_COMPILE_IFELSE([AC_LANG_PROGRAM(,[
+#if !($vencpp)
+thisisanerror;
+#endif
+])], [ax_cv_]_AC_LANG_ABBREV[_compiler_vendor=`echo $ventest | cut -d: -f1`; break])
+done
+])
+])
+
+