Make the ObjC support conditional to darwin.

Fixes protocolbuffers#9392
thomasvl · Feb 24, 2022 · ecff97f · ecff97f
1 parent e847034
commit ecff97f
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/configure.ac b/configure.ac
@@ -80,7 +80,7 @@ AC_LANG([C++])
 ACX_USE_SYSTEM_EXTENSIONS
 m4_ifdef([AM_PROG_AR], [AM_PROG_AR])
 AM_CONDITIONAL(GCC, test "$GCC" = yes)   # let the Makefile know if we're gcc
-AC_PROG_OBJC
+AS_CASE([$target_os], [darwin*], [AC_PROG_OBJC])
 
 # test_util.cc takes forever to compile with GCC and optimization turned on.
 AC_MSG_CHECKING([C++ compiler flags...])