Work around a bug of AC_EGREP_CPP in autoconf-2.57.

diff --git a/m4/ChangeLog b/m4/ChangeLog
index 927ab9d6ee9135b2c332b21508cf49985bd0309f..211f0f5889d2065881b94cd3dc9623bf00d54cf3 100644 (file)
--- a/m4/ChangeLog
+++ b/m4/ChangeLog
@@ -1,3 +1,7 @@
+2003-01-11  Bruno Haible  <bruno@clisp.org>
+
+       * alloca.m4 (gl_FUNC_ALLOCA): Invoke AC_EGREP_CPP prerequisites.
+
 2003-01-12  Paul Eggert  <eggert@twinsun.com>
 
        Finish renaming getstr -> getdelim2 and readline -> readlinebuffer,

diff --git a/m4/alloca.m4 b/m4/alloca.m4
index 6dc0760fa80d49c60dd2e6163c00144477933e87..3a4ee7ed49b00f91d1bb866d38885ff54f133b52 100644 (file)
--- a/m4/alloca.m4
+++ b/m4/alloca.m4
@@ -8,6 +8,10 @@ dnl the same distribution terms as the rest of that program.
 
 AC_DEFUN([gl_FUNC_ALLOCA],
 [
+  dnl Work around a bug of AC_EGREP_CPP in autoconf-2.57.
+  AC_REQUIRE([AC_PROG_CPP])
+  AC_REQUIRE([AC_PROG_EGREP])
+
   AC_REQUIRE([AC_FUNC_ALLOCA])
   if test $ac_cv_func_alloca_works = no; then
     gl_PREREQ_ALLOCA