https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100932
Bug ID: 100932
Summary: autoconf error: possibly undefined macro:
GCC_AC_ENABLE_DECIMAL_FLOAT
Product: gcc
Version: 11.1.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: other
Assignee: unassigned at gcc dot gnu.org
Reporter: nicolas at debian dot org
Target Milestone: ---
Hello.
When I attempt to autoreconf(2.69) the gcc/ subdirectory of 10.2.1 or 11.1.0, I
get:
configure.ac:886: error: possibly undefined macro:
GCC_AC_ENABLE_DECIMAL_FLOAT
configure.ac:1499: error: possibly undefined macro:
GCC_AC_FUNC_MMAP_BLACKLIST
There is a slight possibility that the error is caused by local patches (Debian
experimental), but this trivial change fixes the issue:
--- a/src/gcc/configure.ac
+++ b/src/gcc/configure.ac
@@ -25,6 +25,7 @@
AC_INIT
AC_CONFIG_SRCDIR(tree.c)
+AC_CONFIG_MACRO_DIRS(../config)
AC_CONFIG_HEADER(auto-host.h:config.in)
gcc_version=`cat $srcdir/BASE-VER`
The documentation seems to recommend AC_CONFIG_MACRO_DIRS anyway.
