x86: don't show suffixes for to-scalar-int conversion insns

[deliverable/binutils-gdb.git] / config / override.m4

diff --git a/config/override.m4 b/config/override.m4
index 52bd1c3d1b82469bf38c11dddf5fbec82878820f..b5ce6545ab69bb0b7bbfc0cc528b4eabad971111 100644 (file)
--- a/config/override.m4
+++ b/config/override.m4
@@ -101,4 +101,16 @@ m4_define([_AC_CHECK_DECLS],
 
 ])
 
+dnl If flex/lex are not found, the top level configure sets LEX to
+dnl "/path_to/missing flex".  When AC_PROG_LEX tries to find the flex
+dnl output file, it calls $LEX to do so, but the current lightweight
+dnl "missing" won't create a file.  This results in an error.
+dnl Avoid calling the bulk of AC_PROG_LEX when $LEX is "missing".
+AC_DEFUN_ONCE([AC_PROG_LEX],
+[AC_CHECK_PROGS(LEX, flex lex, :)
+case "$LEX" in
+  :|*"missing "*) ;;
+  *) _AC_PROG_LEX_YYTEXT_DECL ;;
+esac])
+
 ])