.

diff --git a/m4/check-decl.m4 b/m4/check-decl.m4
new file mode 100644 (file)
index 0000000..0596ce0
--- /dev/null
+++ b/m4/check-decl.m4
@@ -0,0 +1,16 @@
+dnl This is just a wrapper function to encapsulate this kludge.
+dnl Putting it in a separate file like this helps share it between
+dnl different packages.
+AC_DEFUN(jm_CHECK_DECLS,
+[
+  if test x = y; then
+    dnl This code is deliberately never run via ./configure.
+    dnl FIXME: this is a gross hack to make autoheader put entries
+    dnl for each of these symbols in the config.h.in.
+    dnl Otherwise, I'd have to update acconfig.h every time I change
+    dnl this list of functions.
+    AC_CHECK_FUNCS(DECLARATION_FREE DECLARATION_MALLOC DECLARATION_REALLOC \
+                  DECLARATION_STPCPY DECLARATION_STRSTR)
+  fi
+  jm_CHECK_DECLARATIONS(free malloc realloc stpcpy strstr)
+])