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libstdc++: Use [] for empty argument to automake macro

Message ID 20240301144238.94065-1-jwakely@redhat.com
State New
Headers show
Series libstdc++: Use [] for empty argument to automake macro | expand

Commit Message

Jonathan Wakely March 1, 2024, 2:39 p.m. UTC 
Does this look reasonable to push? There are lots of other uses of
AM_ENABLE_MULTILIB(, ..) in the tree, but I'll leave others to "fix"
those if needed.

-- >8 --

This seems to be needed to build with --enable-maintainer-mode but I
don't understand why it doesn't fail in the normal build.

libstdc++-v3/ChangeLog:

	* configure.ac: Use [] for empty argument to AM_ENABLE_MULTILIB
	macro.
---
 libstdc++-v3/configure.ac | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
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Patch

diff --git a/libstdc++-v3/configure.ac b/libstdc++-v3/configure.ac
index 37396bd6ebb..1d6a94a16f2 100644
--- a/libstdc++-v3/configure.ac
+++ b/libstdc++-v3/configure.ac
@@ -11,7 +11,7 @@  AC_CONFIG_HEADER(config.h)
 ### am handles this now?  ORIGINAL_LD_FOR_MULTILIBS=$LD
 
 # Find the rest of the source tree framework.
-AM_ENABLE_MULTILIB(, ..)
+AM_ENABLE_MULTILIB([], ..)
 
 # Gets build, host, target, *_vendor, *_cpu, *_os, etc.
 #