Ticket #157: own_inline.patch

acinclude.m4

@@ -568 +568 @@
               [Define if gmodule functionality is supported])
 fi
 ])
+
+dnl
+dnl  Check for __attribute__((always_inline))
+dnl
+AC_DEFUN([MC_ATTRIBUTE_ALWAYS_INLINE_SUPPORTED], [
+   AC_CACHE_CHECK([if __attribute__ ((always_inline)) supported ], mc_cv_attr_always_inline_supp, [
+           ac_save_CFLAGS="$CFLAGS"
+           CFLAGS="$CFLAGS -Werror -fgnu89-inline"
+           AC_TRY_RUN([
+#define _ATTRIBUTE_ALWAYS_INLINE_       __attribute__((always_inline))
+
+extern inline int _ATTRIBUTE_ALWAYS_INLINE_ test_alws_inln(void);
+
+inline int _ATTRIBUTE_ALWAYS_INLINE_ test_alws_inln(void) {
+
+int i, S = 65535;
+   for (i = 0; i < S; i++) {
+         i = ~(S^i);
+    }
+ return (i-S);
+}
+
+
+int main(void) {
+
+   test_alws_inln();
+
+ return 0;
+}
+            ],
+                [mc_cv_attr_always_inline_supp=yes],
+                [mc_cv_attr_always_inline_supp=no]
+            )
+             CFLAGS="$ac_save_CFLAGS"
+  ])
+
+if test "$mc_cv_attr_always_inline_supp" = yes; then
+    AC_DEFINE([_ATTRIBUTE_ALWAYS_INLINE_], [__attribute__((always_inline))],
+               [Define if __attribute__((always_inline)) supported])
+else
+    AC_DEFINE([_ATTRIBUTE_ALWAYS_INLINE_], [], [unsupported])
+fi
+])
+
+
+dnl
+dnl  Check for __attribute__((gnu_inline))
+dnl
+AC_DEFUN([MC_GNU_INLINE_SUPPORTED], [
+   AC_CACHE_CHECK([if (inline) supported ], mc_cv_inline_supp, [
+           ac_save_CFLAGS="$CFLAGS"
+           CFLAGS="$CFLAGS -Werror"
+           AC_TRY_RUN([
+
+extern inline int test_inln(void);
+
+inline int test_inln(void) {
+
+int i, S = 65535;
+   for (i = 0; i < S; i++) {
+         i = ~(S^i);
+    }
+ return (i-S);
+}
+
+
+int main(void) {
+
+   test_inln();
+
+ return 0;
+}
+            ],
+                [mc_cv_inline_supp=yes],
+                [mc_cv_inline_supp=no]
+            )
+             CFLAGS="$ac_save_CFLAGS"
+  ])
+
+if test "$mc_cv_inline_supp" = yes; then
+    AC_DEFINE([_GNU_INLINE_], [ inline ], [Define if inline supported])
+else
+   AC_CACHE_CHECK([if (inline) with -fgnu89-inline supported ], mc_cv_89inline_supp, [
+           ac_save_CFLAGS="$CFLAGS -fgnu89-inline"
+           CFLAGS="$CFLAGS -Werror -fgnu89-inline"
+           AC_TRY_RUN([
+
+extern inline int test_inln(void);
+
+inline int test_inln(void) {
+
+int i, S = 65535;
+   for (i = 0; i < S; i++) {
+         i = ~(S^i);
+    }
+ return (i-S);
+}
+
+
+int main(void) {
+
+   test_inln();
+
+ return 0;
+}
+            ],
+                [mc_cv_89inline_supp=yes],
+                [mc_cv_89inline_supp=no]
+            )
+             CFLAGS="$ac_save_CFLAGS"
+  ])
+
+    if test "$mc_cv_89inline_supp" = yes; then
+    AC_DEFINE([_GNU_INLINE_], [ inline ], [Define if inline supported])
+    else
+    AC_DEFINE([_GNU_INLINE_], [ ], [Define if inline unsupported])
+    fi
+fi
+])
+