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-rw-r--r--gcc/ada/layout.adb7
1 files changed, 6 insertions, 1 deletions
diff --git a/gcc/ada/layout.adb b/gcc/ada/layout.adb
index 1f44196bded..651107f24c4 100644
--- a/gcc/ada/layout.adb
+++ b/gcc/ada/layout.adb
@@ -2882,7 +2882,12 @@ package body Layout is
and then Is_Packed (E)
and then not Is_Atomic (E)
then
- Align := 1;
+ if not Size_Known_At_Compile_Time (E) then
+ Error_Msg_N ("Optimize_Alignment has no effect for &", E);
+ Error_Msg_N ("\pragma is ignored for variable length record?", E);
+ else
+ Align := 1;
+ end if;
-- Not a record, or not packed
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