- Issue #3718: Use AC_ARG_VAR to set MACHDEP in configure.ac.
diff --git a/Misc/NEWS b/Misc/NEWS
index 108857b..c58ab66 100644
--- a/Misc/NEWS
+++ b/Misc/NEWS
@@ -547,6 +547,8 @@
Build
-----
+- Issue #3718: Use AC_ARG_VAR to set MACHDEP in configure.ac.
+
- Issue #17031: Fix running regen in cross builds.
- Issue #3754: fix typo in pthread AC_CACHE_VAL.
diff --git a/configure b/configure
index 6edeb11..b881602 100755
--- a/configure
+++ b/configure
@@ -810,6 +810,7 @@
ac_precious_vars='build_alias
host_alias
target_alias
+MACHDEP
CC
CFLAGS
LDFLAGS
@@ -1484,6 +1485,7 @@
default on supported compilers)
Some influential environment variables:
+ MACHDEP name for machine-dependent library files
CC C compiler command
CFLAGS C compiler flags
LDFLAGS linker flags, e.g. -L<lib dir> if you have libraries in a
diff --git a/configure.ac b/configure.ac
index 15bd43c..b555f27 100644
--- a/configure.ac
+++ b/configure.ac
@@ -348,7 +348,7 @@
## [Use (OpenStep|Rhapsody) dynamic linker]))
##
# Set name for machine-dependent library files
-AC_SUBST(MACHDEP)
+AC_ARG_VAR([MACHDEP], [name for machine-dependent library files])
AC_MSG_CHECKING(MACHDEP)
if test -z "$MACHDEP"
then