X-Git-Url: https://git.m6w6.name/?p=m6w6%2Fext-psi;a=blobdiff_plain;f=config.psi_const.m4;fp=config.psi_const.m4;h=db08f62f5d474e0da83d24540cd2c6df32ab4055;hp=0000000000000000000000000000000000000000;hb=3137da963d298c73ce3bc858874fdfc87fa941b7;hpb=5d54598329a4d04dd0080bc1252d1de85a7befef

diff --git a/config.psi_const.m4 b/config.psi_const.m4
new file mode 100644
index 0000000..db08f62
--- /dev/null
+++ b/config.psi_const.m4
@@ -0,0 +1,40 @@
+PSI_CONSTS=""
+# add_str_const(name, value)
+add_str_const() {
+	PSI_CONSTS="{PSI_T_STRING, \"string\", \"psi\\\\$1\", $2, PSI_T_QUOTED_STRING}, $PSI_CONSTS"
+}
+# add_int_const(name, value)
+add_int_const() {
+	PSI_CONSTS="{PSI_T_INT, \"int\", \"psi\\\\$1\", \"$2\", PSI_T_NUMBER}, $PSI_CONSTS"
+}
+dnl PSI_CONST(const name, type)
+AC_DEFUN(PSI_CONST, [
+	AC_CACHE_CHECK(value of $1, psi_cv_const_$1, [
+		psi_const_val=
+		case $2 in
+		str*)
+			if test "$cross_compiling" = "yes"
+			then
+				AC_TRY_CPP(PSI_INCLUDES $1, psi_const_val=`eval "$ac_try|tail -n1"`, psi_const_val=)
+			else
+				PSI_COMPUTE_STR(psi_const_val, $1, PSI_INCLUDES)
+			fi
+			;;
+		int)
+			AC_COMPUTE_INT(psi_const_val, $1, PSI_INCLUDES)
+			;;
+		esac
+		psi_cv_const_$1=$psi_const_val
+	])
+	if test "$psi_cv_const_$1"
+	then
+		case $2 in
+		str*)
+			add_str_const "$1" "$psi_cv_const_$1"
+			;;
+		int)
+			add_int_const "$1" "$psi_cv_const_$1"
+			;;
+		esac
+	fi
+])