Eliminate ALLOCA_H.

* configure: Instead of generating a definition of ALLOCA_H,
generate the variable HAVE_ALLOCA_<name> with a value of 1,
where <name> is one of stdlib, alloca or malloc.

* alloca.h: New header.

* args.c, eval.c, ffi.c ffi.c, ftw.c, hash.c, lib.c, match.c,
parser.c, parser.y, regex.c, socket.c, stream.c, struct.c,
sysif.c, syslog.c, termios.c, unwind.c, vm.c: Include
"alloca.h" instead of ALLOCA_H.

1 files changed, 3 insertions, 3 deletions

diff --git a/configure b/configure
index 7e99d64d..ba70c550 100755
--- a/configure
+++ b/configure
@@ -2577,9 +2577,9 @@ done
 
 printf "Checking for alloca ... "
 
-for try_header in stdlib.h alloca.h malloc.h ; do
+for try_header in stdlib alloca malloc ; do
   cat > conftest.c <<!
-#include <$try_header>
+#include <$try_header.h>
 
 int main(int argc, char **argv)
 {
@@ -2590,7 +2590,7 @@ int main(int argc, char **argv)
 
   if conftest ; then
     printf "yes\n"
-    printf "#define ALLOCA_H <%s>\n" $try_header >> config.h
+    printf "#define HAVE_ALLOCA_%s 1\n" $try_header >> config.h
     have_alloca=y
     break;
   fi